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SVM 110-A
For use with machine code numbers 9975 and 9976
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However,
your overall safety can be
increased by proper installation .
. . and thoughtful operation on
your part. DO NOT INSTALL,
OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READING THIS MANUAL AND THE
SAFETY PRECAUTIONS CONTAINED THROUGHOUT. And,
most importantly, think before
you act and be careful.
TM
RANGER 9
January, 1996
View Safety Info View Safety Info View Safety Info View Safety Info
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World’s Leader in Welding and Cutting Products Premier Manufacturer of Industrial Motors
SERVICE MANUAL
Sales and Service through subsidiaries and Distributors Worldwide
22801 St. Clair Ave. Cleveland, Ohio 44117-1199 U.S.A. Tel. (216) 481-8100
i i
SAFETY
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
Diesel engine exhaust and some of its constituents
are known to the State of California to cause cancer, birth defects, and other reproductive harm.
The Above For Diesel Engines
ARC WELDING CAN BE HAZARDOUS. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH.
KEEP CHILDREN AWAY. PACEMAKER WEARERS SHOULD CONSULT WITH THEIR DOCTOR BEFORE OPERATING.
Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you
purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American W elding Society, P .O. Box 351040,
Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the
Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199.
BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
The engine exhaust from this product contains
chemicals known to the State of California to cause
cancer, birth defects, or other reproductive harm.
The Above For Gasoline Engines
FOR ENGINE
powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance
work unless the maintenance work requires it to be running.
____________________________________________________
1.b.Operate engines in open, well-ventilated
areas or vent the engine exhaust fumes
outdoors.
____________________________________________________
1.c. Do not add the fuel near an open flame weld-
ing arc or when the engine is running. Stop
the engine and allow it to cool before refueling to prevent spilled fuel from vaporizing on
contact with hot engine parts and igniting. Do
not spill fuel when filling tank. If fuel is spilled,
wipe it up and do not start engine until fumes
have been eliminated.
____________________________________________________
1.d. Keep all equipment safety guards, covers
and devices in position and in good
repair.Keep hands, hair, clothing and tools
away from V-belts, gears, fans and all other
moving parts when starting, operating or
repairing equipment.
____________________________________________________
1.e. In some cases it may be necessary to remove safety
guards to perform required maintenance. Remove
guards only when necessary and replace them when the
maintenance requiring their removal is complete.
Always use the greatest care when working near moving
parts.
___________________________________________________
1.f. Do not put your hands near the engine fan. Do not attempt to
override the governor or idler by pushing on the throttle control rods while the engine is running.
___________________________________________________
1.g. To prevent accidentally starting gasoline engines while
turning the engine or welding generator during maintenance
work, disconnect the spark plug wires, distributor cap or
magneto wire as appropriate.
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1.h. To avoid scalding, do not remove the
radiator pressure cap when the engine is
hot.
ELECTRIC AND
MAGNETIC FIELDS
may be dangerous
2.a. Electric current flowing through any conductor causes
localized Electric and Magnetic Fields (EMF). Welding
current creates EMF fields around welding cables and
welding machines
2.b. EMF fields may interfere with some pacemakers, and
welders having a pacemaker should consult their physician
before welding.
2.c. Exposure to EMF fields in welding may have other health
effects which are now not known.
2.d. All welders should use the following procedures in order to
minimize exposure to EMF fields from the welding circuit:
2.d.1.
Route the electrode and work cables together - Secure
them with tape when possible.
2.d.2. Never coil the electrode lead around your body.
2.d.3. Do not place your body between the electrode and
work cables. If the electrode cable is on your right
side, the work cable should also be on your right side.
2.d.4. Connect the work cable to the workpiece as close as
possible to the area being welded.
2.d.5. Do not work next to welding power source.
Mar ‘95
ii ii
SAFETY
ELECTRIC SHOCK can kill.
3.a. The electrode and work (or ground) circuits
are electrically “hot” when the welder is on.
Do not touch these “hot” parts with your bare
skin or wet clothing. Wear dry, hole-free
gloves to insulate hands.
3.b. Insulate yourself from work and ground using dry insulation.
Make certain the insulation is large enough to cover your full
area of physical contact with work and ground.
In addition to the normal safety precautions, if welding
must be performed under electrically hazardous
conditions (in damp locations or while wearing wet
clothing; on metal structures such as floors, gratings or
scaffolds; when in cramped positions such as sitting,
kneeling or lying, if there is a high risk of unavoidable or
accidental contact with the workpiece or ground) use
the following equipment:
• Semiautomatic DC Constant Voltage (Wire) Welder.
• DC Manual (Stick) Welder.
• AC Welder with Reduced Voltage Control.
3.c. In semiautomatic or automatic wire welding, the electrode,
electrode reel, welding head, nozzle or semiautomatic
welding gun are also electrically “hot”.
3.d. Always be sure the work cable makes a good electrical
connection with the metal being welded. The connection
should be as close as possible to the area being welded.
3.e. Ground the work or metal to be welded to a good electrical
(earth) ground.
3.f.
Maintain the electrode holder, work clamp, welding cable and
welding machine in good, safe operating condition. Replace
damaged insulation.
3.g. Never dip the electrode in water for cooling.
3.h. Never simultaneously touch electrically “hot” parts of
electrode holders connected to two welders because voltage
between the two can be the total of the open circuit voltage
of both welders.
3.i. When working above floor level, use a safety belt to protect
yourself from a fall should you get a shock.
3.j. Also see Items 6.c. and 8.
ARC RAYS can burn.
4.a. Use a shield with the proper filter and cover
plates to protect your eyes from sparks and
the rays of the arc when welding or observing
open arc welding. Headshield and filter lens
should conform to ANSI Z87. I standards.
4.b. Use suitable clothing made from durable flame-resistant
material to protect your skin and that of your helpers from
the arc rays.
4.c. Protect other nearby personnel with suitable, non-flammable
screening and/or warn them not to watch the arc nor expose
themselves to the arc rays or to hot spatter or metal.
FUMES AND GASES
can be dangerous.
5.a.Welding may produce fumes and gases
hazardous to health. Avoid breathing these
fumes and gases.When welding, keep
your head out of the fume. Use enough
ventilation and/or exhaust at the arc to keep
fumes and gases away from the breathing zone. When
welding with electrodes which require special
ventilation such as stainless or hard facing (see
instructions on container or MSDS) or on lead or
cadmium plated steel and other metals or coatings
which produce highly toxic fumes, keep exposure as
low as possible and below Threshold Limit Values (TLV)
using local exhaust or mechanical ventilation. In
confined spaces or in some circumstances, outdoors, a
respirator may be required. Additional precautions are
also required when welding on galvanized steel.
5.b.
Do not weld in locations near chlorinated hydrocarbon
coming from degreasing, cleaning or spraying operations.
The heat and rays of the arc can react with solvent vapors
form phosgene, a highly toxic gas, and other irritating
products.
5.c. Shielding gases used for arc welding can displace air and
cause injury or death. Always use enough ventilation,
especially in confined areas, to insure breathing air is safe.
5.d. Read and understand the manufacturer’s instructions for this
equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your
employer’s safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.
vapors
to
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5.e. Also see item 1.b.
Mar ‘95
iii iii
SAFETY
WELDING SPARKS can
cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
the welding sparks from starting a fire.
materials from welding can easily go through small cracks
and openings to adjacent areas. Avoid welding near
hydraulic lines. Have a fire extinguisher readily available.
6.b. Where compressed gases are to be used at the job site,
special precautions should be used to prevent hazardous
situations. Refer to “Safety in Welding and Cutting” (ANSI
Standard Z49.1) and the operating information for the
equipment being used.
6.c. When not welding, make certain no part of the electrode
circuit is touching the work or ground. Accidental contact can
cause overheating and create a fire hazard.
6.d. Do not heat, cut or weld tanks, drums or containers until the
proper steps have been taken to insure that such procedures
will not cause flammable or toxic vapors from substances
inside. They can cause an explosion even
been “cleaned”. For information, purchase “Recommended
Safe Practices for the
Containers and Piping That Have Held Hazardous
Substances”, AWS F4.1 from the American Welding Society
(see address above).
6.e. Vent hollow castings or containers before heating, cutting or
welding. They may explode.
6.f.
Sparks and spatter are thrown from the welding arc. Wear oil
free protective garments such as leather gloves, heavy shirt,
cuffless trousers, high shoes and a cap over your hair. Wear
ear plugs when welding out of position or in confined places.
Always wear safety glasses with side shields when in a
welding area.
6.g. Connect the work cable to the work as close to the welding
area as practical. Work cables connected to the building
framework or other locations away from the welding area
increase the possibility of the welding current passing
through lifting chains, crane cables or other alternate circuits.
This can create fire hazards or overheat lifting chains or
cables until they fail.
6.h. Also see item 1.c.
Remember that welding sparks and hot
though
they have
Preparation
for Welding and Cutting of
CYLINDER may explode
if damaged.
7.a. Use only compressed gas cylinders
containing the correct shielding gas for the
process used and properly operating
regulators designed for the gas and
pressure used. All hoses, fittings, etc. should be suitable for
the application and maintained in good condition.
7.b. Always keep cylinders in an upright position securely
chained to an undercarriage or fixed support.
7.c. Cylinders should be located:
•Away from areas where they may be struck or subjected to
physical damage.
• A safe distance from arc welding or cutting operations and
any other source of heat, sparks, or flame.
7.d. Never allow the electrode, electrode holder or any other
electrically “hot” parts to touch a cylinder.
7.e. Keep your head and face away from the cylinder valve outlet
when opening the cylinder valve.
7.f. Valve protection caps should always be in place and hand
tight except when the cylinder is in use or connected for
use.
7.g. Read and follow the instructions on compressed gas
cylinders, associated equipment, and CGA publication P-l,
“Precautions for Safe Handling of Compressed Gases in
Cylinders,” available from the Compressed Gas Association
1235 Jefferson Davis Highway, Arlington, VA 22202.
FOR ELECTRICALLY
powered equipment.
8.a. Turn off input power using the disconnect
switch at the fuse box before working on
the equipment.
8.b. Install equipment in accordance with the U.S. National
Electrical Code, all local codes and the manufacturer’s
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturer’s recommendations.
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Mar ‘95
iv iv
SAFETY
PRÉCAUTIONS DE SÛRETÉ
Pour
votre propre protection lire et observer toutes les instructions
et les précautions de sûreté specifiques qui parraissent dans ce
manuel aussi bien que les précautions de sûreté générales suivantes:
Sûreté Pour Soudage A L’Arc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à l’électrode et à la piéce sont sous tension
quand la machine à souder est en marche. Eviter toujours
tout contact entre les parties sous tension et la peau nue
ou les vétements mouillés. Porter des gants secs et sans
trous pour isoler les mains.
b. Faire trés attention de bien s’isoler de la masse quand on
soude dans des endroits humides, ou sur un plancher metallique ou des grilles metalliques, principalement dans
les positions assis ou couché pour lesquelles une grande
partie du corps peut être en contact avec la masse.
c. Maintenir le porte-électrode, la pince de masse, le câble de
soudage et la machine à souder en bon et sûr état defonctionnement.
d.Ne jamais plonger le porte-électrode dans l’eau pour le
refroidir.
e. Ne jamais toucher simultanément les parties sous tension
des porte-électrodes connectés à deux machines à souder parce que la tension entre les deux pinces peut être le
total de la tension à vide des deux machines.
f. Si on utilise la machine à souder comme une source de
courant pour soudage semi-automatique, ces precautions
pour le porte-électrode s’applicuent aussi au pistolet de
soudage.
zones où l’on pique le laitier.
6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque d’incendie dû aux étincelles.
7. Quand on ne soude pas, poser la pince à une endroit isolé de
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque d’incendie.
8. S’assurer que la masse est connectée le plus prés possible de
la zone de travail qu’il est pratique de le faire. Si on place la
masse sur la charpente de la construction ou d’autres endroits
éloignés de la zone de travail, on augmente le risque de voir
passer le courant de soudage par les chaines de levage,
câbles de grue, ou autres circuits. Cela peut provoquer des
risques d’incendie ou d’echauffement des chaines et des
câbles jusqu’à ce qu’ils se rompent.
9. Assurer une ventilation suffisante dans la zone de soudage.
Ceci est particuliérement important pour le soudage de tôles
galvanisées plombées, ou cadmiées ou tout autre métal qui
produit des fumeés toxiques.
10. Ne pas souder en présence de vapeurs de chlore provenant
d’opérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de l’arc peuvent réagir avec les vapeurs
du solvant pour produire du phosgéne (gas fortement toxique)
ou autres produits irritants.
11. Pour obtenir de plus amples renseignements sur la sûreté, voir
le code “Code for safety in welding and cutting” CSAStandard
W 117.2-1974.
2. Dans le cas de travail au dessus du niveau du sol, se protéger
contre les chutes dans le cas ou on recoit un choc. Ne jamais
enrouler le câble-électrode autour de n’importe quelle partie
du corps.
3. Un coup d’arc peut être plus sévère qu’un coup de soliel,
donc:
a. Utiliser un bon masque avec un verre filtrant approprié
ainsi qu’un verre blanc afin de se protéger les yeux du rayonnement de l’arc et des projections quand on soude ou
quand on regarde l’arc.
b. Porter des vêtements convenables afin de protéger la
peau de soudeur et des aides contre le rayonnement de
l‘arc.
c. Protéger l’autre personnel travaillant à proximité au
soudage à l’aide d’écrans appropriés et non-inflammables.
4. Des gouttes de laitier en fusion sont émises de l’arc de
soudage. Se protéger avec des vêtements de protection libres
de l’huile, tels que les gants en cuir, chemise épaisse, pantalons sans revers, et chaussures montantes.
5. Toujours porter des lunettes de sécurité dans la zone de
soudage. Utiliser des lunettes avec écrans lateraux dans les
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PRÉCAUTIONS DE SÛRETÉ POUR
LES MACHINES À SOUDER À
TRANSFORMATEUR ET À
REDRESSEUR
1. Relier à la terre le chassis du poste conformement au code de
l’électricité et aux recommendations du fabricant. Le dispositif
de montage ou la piece à souder doit être branché à une
bonne mise à la terre.
2. Autant que possible, I’installation et l’entretien du poste seront
effectués par un électricien qualifié.
3. Avant de faires des travaux à l’interieur de poste, la debrancher à l’interrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur
place.
Mar. ‘93
v v
RETURNTOMAIN INDEX
MASTER TABLE OF CONTENTS FOR ALL SECTIONS
Page
Safety.................................................................................................................................................i-iv
Installation.............................................................................................................................Section A
Installation Section Table of Contents........................................................................................A-1
Technical Specifications.............................................................................................................A-2
Safety Precautions......................................................................................................................A-3
Location and Ventilation.............................................................................................................A-3
Pre-operation Engine Service.....................................................................................................A-4
Electrical Output Connections....................................................................................................A-5
Operation...............................................................................................................................Section B
Safety Instructions......................................................................................................................B-2
General Description....................................................................................................................B-2
Recommended Applications......................................................................................................B-3
Operational Features and Controls............................................................................................B-3
Design Features and Advantages...............................................................................................B-3
Welding Capability......................................................................................................................B-4
Limitations.................................................................................................................................B-4
Controls and Settings.................................................................................................................B-4
Engine Operation........................................................................................................................B-7
Welding Operation....................................................................................................................B-10
Summary of Welding Processes...............................................................................................B-13
Auxiliary Power.........................................................................................................................B-14
Accessories...........................................................................................................................Section C
Maintenance.........................................................................................................................Section D
Safety Precautions......................................................................................................................D-2
Routine and Periodic Maintenance............................................................................................D-2
Major Component Locations......................................................................................................D-9
Theory of Operation.............................................................................................................Section E
Troubleshooting and Repair.................................................................................................Section F
Electrical Diagrams..............................................................................................................Section G
Parts Manual................................................................................................................................P-230
RANGER 9 RANGER 9
Section A-1 Section A-1
TABLE OF CONTENTS
- INSTALLATION SECTION -
Installation
Technical Specifications .............................................................................................................A-2
Safety Precautions ......................................................................................................................A-3
Location and Ventilation.............................................................................................................A-3
Storing .................................................................................................................................A-3
Stacking................................................................................................................................A-4
Tilting .................................................................................................................................A-4
Lifting .................................................................................................................................A-4
High Altitude Operation........................................................................................................A-4
Pre-operation Engine Service.....................................................................................................A-4
Oil ........................................................................................................................................A-4
Fuel.......................................................................................................................................A-4
Battery Connections.............................................................................................................A-4
Muffler Relocation ................................................................................................................A-5
Spark Arrester ......................................................................................................................A-5
Electrical Output Connections....................................................................................................A-5
Welding Cable Connections.................................................................................................A-6
Cable Size and Length............................................................................................A-6
Cable Installation.....................................................................................................A-6
Machine Grounding..............................................................................................................A-6
Auxiliary Power Receptacles, Plugs, and Hand-Held Equipment .......................................A-7
Circuit Breakers ....................................................................................................................A-7
Premises Wiring....................................................................................................................A-7
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RANGER 9 RANGER 9
A-2 A-2
INSTALLATION
TECHNICAL SPECIFICATIONS - RANGER 9
INPUT - GASOLINE ENGINE
Manufacturer Description Speed Displacement Ignition Capacities
Onan 2 cyl., 3500 RPM 47.7 cu. in. Electric Fuel: 9 gal. (34 l)
®
P218
Duty Cycle Amps Volts at Rated Amperes
4 cycle Full load (782 cc)
air-cooled Manual Oil: 1.8 qt. (1.7 l)
gasoline 3700 RPM choke
18 HP @ High idle
3600 RPM
2200 RPM
Low idle
RATED OUTPUT - WELDER
100% Duty Cycle 250 AC Constant Current 25
100% Duty Cycle 250 DC Constant Current 25
100% Duty Cycle 250 DC Constant Voltage 25
OUTPUT - WELDER AND GENERATOR
Auxiliary Power for
Welding Ranges Max. Open Circuit Voltage Auxiliary Power Wire Feeders
40 - 250 Amps 80 Volts RMS 9000 Continuous Watts 42V, 60 Hz, 8 Amps
@ 3700 RPM 80 Amps @ 115 V
40 Amps @ 230 V 115V, 60 Hz, 8 Amps
PHYSICAL DIMENSIONS
Height Width Depth Weight
With Onan Engine:
30.3 in. 19.2 in. 42.3 in. 562 lb.
770 mm 485 mm 1074 mm 255 kg
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RANGER 9 RANGER 9
A-3 A-3
INSTALLATION
Read this entire installation section before you
start installation.
SAFETY PRECAUTIONS
WARNING
Do not attempt to use this equipment until you have
thoroughly read all the operation and maintenance
manuals supplied with your machine. They include
important safety precautions; detailed engine starting,
operating, and maintenance instructions; and parts
lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live
parts or electrodes with your
skin or wet clothing.
• Insulate yourself from the work
and ground.
• Always wear dry insulating
gloves.
LOCATION AND VENTILATION
Whenever you use the RANGER 9, be sure that clean
cooling air can flow through the machine’s gasoline
engine and the machine case. Avoid dusty, dirty
areas. Also, keep the machine away from heat
sources. Do not place the back end of the generator
anywhere near hot engine exhaust from another
machine. And of course, make sure that engine
exhaust is ventilated to an open, outside area.
The RANGER 9 may be used outdoors. Do not set the
machine in puddles or otherwise submerge it in water.
Such practices pose safety hazards and cause
improper operation and corrosion of parts.
Always operate the RANGER 9 with the case roof on
and all machine components completely assembled.
This will protect you from the dangers of moving parts,
hot metal surfaces, and live electrical devices.
WARNING
Damage to the fuel tank may cause fire or explosion.
Do not drill holes in the RANGER 9 base or weld to the
RANGER 9 base.
ENGINE EXHAUST can kill.
• Use in open, well ventilated
areas or vent exhaust to the outside.
• Do not stack anything on or near
the engine.
MOVING PARTS can injure.
• Do not operate this equipment
with any of its doors open or
guards off.
• Stop the engine before servicing
it.
• Keep away from moving parts.
Only qualified personnel should install, use, or service this equipment.
STORING
1. Store the machine in a cool, dry place when it’s
not in use. Protect it from dust and dirt. Keep it
where it can’t be accidentally damaged from construction activities, moving vehicles, and other
hazards.
2. If you will be storing the machine for over 30 days,
you should drain the fuel to protect fuel system
and carburetor parts from gum deposits. Empty
all fuel from the tank and run the engine until it
stops from lack of fuel. If you prefer, you can treat
the gasoline with a stabilizer to prevent deterioration rather than drain the system. Follow the stabilizer manufacturer’s instructions. Add the correct amount of stabilizer for the size of the
RANGER 9 fuel tank. Fill the tank with clean, fresh
gasoline. Run the engine for two to three minutes
to circulate the stabilizer through the carburetor.
3. While the engine is still warm, drain the oil and refill
with fresh 10W30 oil. Change the oil filter.
4. Remove the spark plugs and add one to two tablespoons of engine oil or rust inhibitor into each
cylinder. Replace the spark plugs but do not connect the plug leads. Crank the engine two or three
times to distribute the oil.
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RANGER 9 RANGER 9
5. Clean any dirt and debris from the cylinder and
cylinder head fins and other exterior surfaces.
6. Store in a clean, dry area.
A-4 A-4
INSTALLATION
STACKING
RANGER 9 machines CANNOT be stacked.
TILTING
Place the machine on a secure, level surface whenever you use it or store it. Any surfaces you place it on
other than the ground must be firm, non-skid, and
structurally sound.
The gasoline engine is designed to run in a level position for best performance. It can operate at an angle,
but this should never be more than 15 degrees in any
direction. If you do operate it at a slight angle, be sure
to check the oil regularly and keep the oil level at the
FULL mark as it would be in its normal level condition.
Also, fuel capacity will be a little less at an angle.
LIFTING
The RANGER 9 weighs 562 lbs/255 kg. A lift bail is
mounted to the generator stator frame and should
always be used when lifting the machine.
HIGH ALTITUDE OPERATION
WARNING
• Keep hands away from the engine muffler or HOT
engine parts.
• Stop the engine when fueling.
• Do not smoke when fueling.
• Remove the fuel cap slowly to release pressure.
• Do not overfill the fuel tank.
• Wipe up spilled fuel and allow the fumes to clear
before starting the engine.
• Keep sparks and flame away from the fuel tank.
OIL
The RANGER 9 is shipped with the engine
filled with SAE 10W-30 oil. CHECK THE
OIL LEVEL BEFORE YOU ST ART THE ENGINE. This
is an added precaution. When full, the oil level should
be up to but not over the FULL mark on the dipstick.
If it is not full, add enough oil to fill it to the full mark.
For more oil fill and service information, see the
MAINTENANCE section of this manual.
If you operate the RANGER 9 at altitudes above 5000
feet, you should install a carburetor jet designed for
high altitude operation. This will result in better fuel
economy, cleaner exhaust, and longer spark plug life.
It won’t give increased power. Power is decreased at
higher altitudes. Contact the engine manufacturer to
obtain these high altitude jet kits (Onan kit part number 146-0458).
CAUTION
Do not operate a RANGER 9 with a high altitude jet
installed at altitudes below 5000 feet. The engine will
run too lean and operate at higher engine temperatures, which can shorten engine life.
PRE-OPERATION ENGINE SERVICE
Read and understand the information about the gasoline engine in the Operation and Maintenance sections of this manual before you operate the RANGER
9.
FUEL
Fill the fuel tank with clean, fresh, regular
grade lead-free gasoline. DO NOT MIX
OIL WITH THE GASOLINE.
The RANGER 9 has a 9 gallon (34.1 litre),
bottom mounted fuel tank with a top fill and fuel
gauge. See the Operation and Maintenance sections of this manual for more details about fuel.
BATTERY CONNECTIONS
–+
you operate the machine, make sure the Engine
Switch is in the STOP position and attach the disconnected cable securely to the battery terminal. If the
battery is discharged and won’t start the engine, see
the battery charging instructions in the Maintenance
section.
The RANGER 9 is shipped with the negative battery cable disconnected. Before
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RANGER 9 RANGER 9
A-5 A-5
INSTALLATION
FIGURE A.1 - RANGER 9 OUTPUT CONNECTIONS
2
6
5
7
4
3
2
90
70
50
LINCOLN
ELECTRIC
125
175
225 AC
210 DC
1
RANGE
16 to 25
WARNING
8
9
1
10 max
RANGER 9
43
DC+
DC-
AC
5
1. OUTPUT RANGE SELECTOR
2. FINE OUTPUT CONTROL
3. CONTROL AT WELDER/REMOTE CONTROL SWITCH
CHOKE
7
AUTO
START
RUN
IDLER
STOP
HIGH
4. WELDING TERMINALS SWITCH
5. POLARITY SWITCH
6. 115/230 VOLT, 50 AMP RECEPTACLE
7. 115 VOLT, 20 AMP RECEPTACLES (2)
8. WELD OUTPUT TERMINALS (2)
9. GROUND STUD
6
9
MUFFLER RELOCATION
Shut off the machine and allow the muffler to cool
before touching the muffler.
The RANGER 9 is shipped with the exhaust coming
out on the left side. It can be changed to the right side
by removing two screws that hold the exhaust port
cover in place and installing the cover on the opposite
side.
NOTE: Operating the RANGER 9 without the cover in
SPARK ARRESTER
Gasoline engine mufflers may emit sparks when the
engine is running. Some federal, state, or local laws
require spark arresters in locations where unarrested
sparks could present a fire hazard.
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8
WARNING
place will not increase the machine output and
will result in a higher noise level.
Standard mufflers and deflectors (like the ones included with the RANGER 9) do not act as spark arresters.
When local laws require it, a spark arrester must be
installed on the machine and properly maintained. An
optional spark arrester kit (K894-1) is available for your
RANGER 9. See the Accessories section of this manual for more information.
CAUTION
An incorrect spark arrester may lead to damage to the
engine or reduce performance.
ELECTRICAL OUTPUT
CONNECTIONS
See Figure A.1 for the location of the output range
selector, fine output control, polarity switch, control at
welder/remote control switch, welding terminals
always on/remotely controlled switch 115 and 230 volt
receptacles, weld output terminals, and ground stud.
RANGER 9 RANGER 9
A-6 A-6
INSTALLATION
WELDING CABLE CONNECTIONS
CABLE SIZE AND LENGTH
Be sure to use welding cables that are large enough.
The correct size and length becomes especially important when you are welding at a distance from the
welder.
TABLE A.1 - RECOMMENDED WELDING CABLE SIZE AND LENGTH
TOTAL COMBINED LENGTH OF ELECTRODE AND WORK CABLES
Cable Size for 250 Amp Cable Size for 250 Amp
Cable Length 40% Duty Cycle 100% Duty Cycle
0-50 feet (0-15 meters) 2 AWG 1 AWG
50-100 feet (15-39 meters) 2 AWG 1 AWG
100-150 feet (30-46 meters) 1 AWG 1 AWG
150-200 feet (46-61 meters) 1 AWG 1 AWG
200-250 feet (61-76 meters) 1/0 AWG 1/0 AWG
Table A.1 lists recommended cable sizes and lengths
for rated current and duty cycle. Length refers to the
distance from the welder to the work and back to the
welder. Cable diameters are increased for long cable
lengths to reduce voltage drops.
CABLE INSTALLATION
Install the welding cables to your RANGER 9 as follows. See Figure A.1 for the location of parts.
1. The gasoline engine must be OFF to install welding cables.
2. Remove the flanged nuts from the output terminals.
3. Connect the electrode holder and work cables to
the weld output terminals. The terminals are identified on the case front.
4. Tighten the flanged nuts securely.
5. Be certain that the metal piece you are welding
(the “work”) is properly connected to the work
clamp and cable.
6. Check and tighten the connections periodically.
CAUTION
• Loose connections will cause the output terminals to
overheat. The terminals may eventually melt.
• Do not cross the welding cables at the output termi-
nal connection. Keep the cables isolated and separate from one another.
Lincoln Electric offers a welding accessory kit with the
properly specified welding cables. See the Acces-
sories section of this manual for more information.
For more information on welding, see WELDING
OPERATION and SUMMARY OF WELDING PROCESSES in the Operations section of this manual.
MACHINE GROUNDING
Because the RANGER 9 creates its
own power from its gasoline-engine
driven generator, you do not need to
connect the machine frame to an
earth ground. However, for best protection against electrical shock, connect a heavy
gauge wire (#8 AWG or larger) from the ground stud
located on the bottom of the output panel (see Figure
A.1) to a suitable earth ground such as a metal pipe
driven into the ground.
WARNING
Do not ground the machine to a pipe that carries
explosive or combustible material.
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RANGER 9 RANGER 9
A-7 A-7
INSTALLATION
When the RANGER 9 is mounted on a
truck or a trailer, the machine generator
ground stud MUST be securely connected to the metal frame of the vehicle. See
Figure A.1. The ground stud is marked
with the ground symbol.
If the RANGER 9 is connected to premises wiring such
as a home or shop, it must be properly connected to
the system earth ground. See the PREMISES WIRING
section of this manual for details.
AUXILIARY POWER RECEPTACLES,
PLUGS, AND HAND-HELD EQUIPMENT
The control panel of the RANGER 9 features two auxiliary power receptacles: See Figure A.1.
• Two 20 amp, 115 volt duplex (double outlet) receptacles.
• One 50 amp 115/230 volt simplex (single outlet)
receptacle.
Through these receptacles the machine can supply up
to 9,000 rated continuous watts of single-phase, 60 Hz
AC power. The machine output voltages fall within ±
10% of the rated voltage.
For further protection against electric shock, any electrical equipment connected to the generator receptacles must use a three-blade, grounded type plug or an
Underwriter’ s Laboratories (UL) appr oved double insulation system with a two-blade plug. Lincoln offers an
accessory plug kit that has the right type of plugs. See
the Accessories section of this manual for details.
If you need ground fault protection for hand-held
equipment, refer to the Accessories section of this
manual for the K896-1 GFCI Receptacle kit.
PREMISES WIRING
The RANGER 9 is suitable for temporary, standby, or
emergency power using the engine manufacturer’s
recommended maintenance schedule. With its threewire grounded neutral generator, it can be permanently installed as a standby power unit for 230 volt, threewire, single phase 40 ampere service.
WARNING
Only a licensed, certified, trained electrician should
install the machine to a premises or residential electrical system. Be certain that:
• The installation complies with the National Electrical
Code and all other applicable electrical codes.
• The premises is isolated and no feedbacking into
the utility system can occur. Certain state and local
laws require the premises to be isolated before the
generator is linked to the premises. Check your
state and local requirements.
• A double pole, double throw transfer switch in conjunction with the properly rated double throw circuit
breaker is connected between the generator power
and the utility meter.
The following information and the connection diagram,
Figure A.2, can be used as a guide by the electrician
for most applications to premises wiring.
1. Install a double pole, double throw switch between
the power company meter and the premises disconnect. The switch rating must be the same as
or greater than the premises disconnect and
service overcurrent protection.
CIRCUIT BREAKERS
Canadian Standards Association
(CSA) versions of the RANGER 9 are
equipped with 50 amp circuit breakers
on the 115/230 V receptacle and 15
amp circuit breakers on the 115 V receptacles for
overload protection. Under high heat a breaker may
tend to trip at lower loads than it would normally.
Never bypass the circuit breakers. Without overload
protection, the RANGER 9 could overheat and/or
cause damage to the equipment being used.
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RANGER 9 RANGER 9
CAUTION
2. Take the necessary steps to assure that the load is
limited to the capacity of the RANGER 9 by
installing a 40 amp 230 volt double pole circuit
breaker. Maximum rated load for the 230 volt auxiliary is 40 amperes. Loading above 40 amperes
will reduce output voltage below the allowable
– 10% of rated voltage. This may damage appliances or other motor-driven equipment.
3. Install a 50 amp 115/230 volt plug (NEMA type 14-
50) to a double pole circuit breaker using No. 8, 4
conductor cable of the desired length. (The 50
amp 115/230 volt plug is available in the optional
power plug kit. See the Accessories section for
details.)
4. Plug this cable into the 50 amp 115/230 volt
receptacle on the RANGER 9 case front.
A-8 A-8
INSTALLATION
FIGURE A.2 - CONNECTION OF RANGER 9 TO PREMISES WIRING
230 VOLT
230 V olt
60 Hz.
3-Wire
Service
POWER
COMP ANY
METER
DOUBLE POLE DOUBLE THROW
SWITCH RATING TO BE THE SAME
AS OR GREATER THAN PREMISES
SERVICE OVERCURRENT
PROTECTION.
115 VOLT
115 VOLT
GROUNDED CONDUCTOR
NEUTRAL
BUS
LOAD
50 AMP, 115/230
VOLT PLUG
NEMA TYPE 14-50
230 VOLTS
50 AMP, 115/230 VOLT
RECEPTACLE
40 AMP
230 VOLT
DOUBLE
POLE
CIRCUIT
BREAKER
GND
PREMISES
DISCONNECT AND
GROUND
N
NOTE: No. 8 COPPER CONDUCTOR CABLE
SEE NATIONAL ELECTRIC CODE FOR
ALTERNATE WIRE SIZE RECOMMENDATIONS .
SERVICE
OVERCURRENT
PROTECTION
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RANGER 9 RANGER 9
Section B-1 Section B-1
TABLE OF CONTENTS
- OPERATION SECTION -
Operation...............................................................................................................................Section B
Safety Instructions......................................................................................................................B-2
General Description....................................................................................................................B-2
Recommended Applications ......................................................................................................B-3
Welder .................................................................................................................................B-3
Generator .............................................................................................................................B-3
Operational Features and Controls ............................................................................................B-3
Design Features and Advantages...............................................................................................B-3
Welding Capability ......................................................................................................................B-4
Limitations .................................................................................................................................B-4
Controls and Settings ................................................................................................................B-4
Welder/Generator Controls ..................................................................................................B-5
Gasoline Engine Controls.....................................................................................................B-7
Engine Operation........................................................................................................................B-7
Before Starting the Engine ..................................................................................................B-8
Starting the Engine ..............................................................................................................B-8
Stopping the Engine ............................................................................................................B-8
Break-in Period ....................................................................................................................B-8
Welding Operation....................................................................................................................B-10
General Information............................................................................................................B-10
AC/DC Constant Current Stick Welding ......................................................................B-10
AC/DC TIG (Constant Current) Welding.......................................................................B-11
DC Wire Feed Welding.................................................................................................B-12
Summary of Welding Processes...............................................................................................B-13
Auxiliary Power.........................................................................................................................B-14
General Information............................................................................................................B-14
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RANGER 9 RANGER 9
B-2 B-2
OPERATION
OPERATING INSTRUCTIONS
Read and understand this entire section before operating your RANGER 9.
SAFETY INSTRUCTIONS
WARNING
Do not attempt to use this equipment until you have
thoroughly read all the operation and maintenance
manuals supplied with your machine. They include
important safety precautions; detailed engine starting,
operating, and maintenance instructions; and parts
lists.
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts or
electrodes with your skin or wet clothing.
• Insulate yourself from the work and
ground.
WARNING
ARC RAYS can burn.
• Wear eye, ear, and body protection.
ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or
vent exhaust to the outside.
• Do not stack anything on or near the
engine.
MOVING PARTS can injure.
• Do not operate this equipment with
any of its doors open or guards off.
• Stop the engine before servicing it.
• Keep away from moving parts.
• Always wear dry insulating gloves.
FUMES AND GASES can be dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to remove
fumes from breathing zone.
WELDING SPARKS can cause
fire or explosion.
• Keep flammable material away.
• Do not weld on containers that have held
combustibles.
Only qualified personnel should install, use, or service this equipment.
GENERAL DESCRIPTION
The RANGER 9 is a gasoline-engine driven, multiprocess arc welder and AC power generator for commercial and residential applications. As a generator it
can supply up to 9,000 continuous watts of 115/230
volt, 60 Hz, single-phase AC power to operate AC
power tools, battery chargers, and lighting; it can also
be used to provide standby power. As a welder it provides 250 amps of AC current for welding with AC
stick electrodes or 250 amps of DC current for DC
stick welding. The RANGER 9 can also perform
AC/DC TIG welding and DC semiautomatic wire feed
welding.
The RANGER 9 is powered by the Onan P218
Performer®air-cooled, twin-cylinder engine.
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RANGER 9 RANGER 9
B-3 B-3
OPERATION
RECOMMENDED APPLICATIONS
WELDER
The RANGER 9 provides excellent constant current
AC/DC welding output for stick (SMAW) welding and
for TIG welding, and it offers constant voltage output
for DC semiautomatic wire feed welding. For more
details on using the machine as a welder, see WELDING OPERATION in the Operation section of this
manual.
GENERATOR
The RANGER 9 gives AC generator output for medium
use demands. For more details on operating the generator, see AUXILIARY POWER in the Operation section of this manual.
OPERATIONAL FEATURES AND
CONTROLS
The RANGER 9 was designed for simplicity. Therefore, it has very few operating controls. Three switches are used for welding operations:
• A nine-position output range selector switch selects
current output for constant current stick or TIG
applications and constant voltage wire feed applications.
• A fine output control switch for fine adjustment of
current or voltage within the selected output range
• A three-position polarity switch for selecting DC+,
DC- or AC welding output.
• A two-position toggle switch for selecting between
CONTROL AT WELDER or REMOTE CONTROL
(Remote control connections are made at either the
6 pin or the 14 pin amphenol connector.
• A two-position toggle switch for selecting between
control of the output contactor by the RANGER 9
(WELDING TERMINALS ALWAYS ON) or control of
the output contactor by a cable from a wire feeder
gun (WELDING TERMINALS REMOTELY CONTROLLED).
The gasoline engine control is a three-position toggle
switch for START, RUN, and STOP and a two-position
“IDLER” switch that selects engine speed for welding
or auxiliary power applications. See ENGINE OPERATION in the Operation section of this manual for
details about starting, running, stopping, and breaking
in the gasoline engine.
DESIGN FEATURES AND
ADVANTAGES
• 9,000 watts of auxiliary power
• Enhanced constant voltage capability with low (1221 volts), medium (15-27 volts), and high (18-35
volts) range settings for greater control of wire feed
applications.
• Built-in contactor with front panel selection of
“cold” or “hot” welding terminals: Cold (WELDING
TERMINALS REMOTELY CONTROLLED) – Closing
wire feeder trigger switch or amptrol causes contactor to close and engine to accelerate to high idle.
Hot (WELDING TERMINALS ALWAYS ON) – The
contactor is closed and welding begins when electrode touches work; engine automatically goes to
high idle.
• Constant current AC/DC Stick welding (SMAW)
process capability with output range from 40-250
amps (AC) or 40-250 amps (DC).
• Constant voltage DC Semiautomatic Wire Feed
Welding with output range from 40-250 amps.
• Constant current AC/DC TIG Welding with output
across the entire range of settings.
• Polarity switch for selecting DC+, DC-, or AC welding output.
• Separate ground stud for safe connection of case to
earth ground.
• Single 50 amp, 230 volt, full 9 kVA auxiliary power
receptacle.
• Double duplex 20 amp, 115 volt auxiliary power
receptacles.
• Electric starting.
• Battery Charging Ammeter.
• Engine Hour Meter for determining periodic maintenance.
• Top-of-the-line 18 HP Onan P218 Performer
engine.
• Durable, heavy-gauge steel case.
• Built-in feet for easy mounting to truck bed or trailer.
• Bottom-mounted 10 gallon (38.0 litre) fuel tank with
convenient top fill and fuel gauge.
®
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RANGER 9 RANGER 9
B-4 B-4
OPERATION
• Quiet engine muffler with reversible exhaust feature
for right or left side.
• All copper alternator windings and high quality insulation for dependable long life.
• Automatic engine shutdown protection for low oil
pressure.
• Automatic engine idler goes to low idle 10 to 14
seconds after welding for greater fuel economy;
includes high idle switch.
• Standard Remote Control Receptacle provides
interface for Lincoln remote control accessories.
Both 6 pin and 14 pin amphenols are provided for
ease in hooking up wire feeders.
• Canadian Standard Association (CSA) approved
models available; include integrated generator output overload protection through two 50 amp circuit
breakers.
WELDING CAPABILITY
The RANGER 9 is rated 250 amps, 25 volts constant
current AC or 250 amps, 25 volts constant current DC
(250 amps 25 volts constant voltage DC) at 100% duty
cycle on a ten-minute basis.
LIMITATIONS
• The RANGER 9 is not recommended for any
processes besides those that are normally performed using stick welding (SMAW), TIG welding,
MIG (GMAW) welding and Innershield®(FCAW)
welding. Specific limitations on using the
RANGER 9 for these processes are described in the
WELDING OPERATION section of this manual.
• The RANGER 9 is not recommended for pipe thawing.
• During welding, generator power is limited and output voltages can drop. Therefore, DO NOT OPERATE ANY SENSITIVE ELECTRICAL EQUIPMENT
WHILE YOU ARE WELDING. See Table B.4 for permissible simultaneous welding and auxiliary power
loads.
CONTROLS AND SETTINGS
All generator/welder controls are located on the
Output Control Panel of the machine case front.
Gasoline engine choke control, idler control, and
start/stop controls are also on the case front. See
Figure B.1 and the explanations that follow.
The current is continuously variable from 40 to 250
amps AC or 40 to 250 amps DC. The RANGER 9 can
weld with all 3/32 and most 1/8 inch and 1/16 diameter Lincoln AC stick electrodes. Wire feed processes
using wire diameters from .030 to .068 inch are possible, depending on the specific process and wire feeder. (See LIMITATIONS.)
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RANGER 9 RANGER 9
B-5 B-5
OPERATION
FIGURE B.1 – OUTPUT PANEL CONTROLS
1
7
8
11
RANGE
16 to 25
WARNING
50
LINCOLN
70
ELECTRIC
2
6
5
7
4
2
1
10 max
225 AC
210 DC
RANGER 9
8
9
3
90
125
175
54 6
DC+
DC-
AC
3
1. OUTPUT RANGE SELECTOR
2. FINE OUTPUT CONTROL
CHOKE
AUTO
START
RUN
IDLER
STOP
HIGH
3. POLARITY SWITCH
4. CONTROL AT WELDER/REMOTE CONTROL SWITCH
5. WELDING TERMINALS ALWAYS ON/
WELDING TERMINALS REMOTELY CONTROLLED SWITCH
6 WIRE FEEDER POWER CIRCUIT BREAKER
7. 115 VOLT, 20 AMP RECEPTACLES (2)
8. 115/230 VOLT, 50 AMP RECEPTACLE
9. WELD OUTPUT TERMINAL (TO WORK)
10. WELD OUTPUT TERMINAL (TO ELECTRODE HOLDER)
11. GROUND STUD
12. 14 PIN AMPHENOL
13. 6 PIN AMPHENOL
9
1012 13
WELDER/GENERATOR CONTROLS
See Figure B.1 for the location of the following features:
1. OUTPUT RANGE SELECTOR: Selects continuous
current output for constant current stick or TIG
applications (blue settings) and constant voltage
wire feed applications (red settings). The amperages on the dial correspond to the maximum
amperages for each corresponding range setting.
Never change the range switch setting while
welding since this could damage the switch.
2. FINE OUTPUT CONTROL: Allows fine adjustment
of current or voltage within the selected output
range.
3. POLARITY SWITCH: Selects DC+, DC- or AC
welding output. Color codings aid in the proper
selection of stick (blue) or wire feed (red) polarity
setting. The color setting of the polarity switch
must match the color setting of the OUTPUT
RANGE SELECTOR. Never change the polarity
switch setting while welding since this could
damage the switch.
4. CONTROL AT WELDER/REMOTE CONTROL
SWITCH: Allows the operator to control welding
output at the welding control panel or at a remote
station. Remote connections are made at the 6 pin
or 14 pin amphenol connector.
5. WELDING TERMINALS ALWAYS ON/WELDING
TERMINALS REMOTELY CONTROLLED SWITCH:
Allows control of the RANGER 9 output contactor.
In the ALWAYS ON position, the switch closes the
output contactor, and welding begins when an arc
is struck between the electrode and the workpiece.
In the REMOTELY CONTROLLED position, the
switch places control of the contactor at the wire
feeder. The contactor closes when the wire feeder
gun trigger or amptrol switch closes and opens
when it is released.
6. WIRE FEEDER POWER CIRUIT BREAKER: Opens
the wire feeder circuit and disables the feeder if a
fault is detected in the circuit.
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RANGER 9 RANGER 9
B-6 B-6
OPERATION
7. 20 AMP, 115 VOLT DUPLEX RECEPTACLES:
Connection point for supplying 115 volt power to
operate one or two electrical devices.
8. 50 AMP, 230 VOLT RECEPTACLE: Connection
point for supplying 230 volt power to operate one
electrical device.
9. WELD OUTPUT TERMINAL (TO WORK) WITH
FLANGE NUT: Provides the connection point for
the work cable.
10. WELD OUTPUT TERMINAL (TO ELECTRODE
HOLDER) WITH FLANGE NUT: Provides the connection point for the electrode holder.
11. GROUND STUD: Provides a connection point for
connecting the machine case to earth ground for
the safest grounding procedure.
12. 14 PIN AMPHENOL: For attaching wire feeder
control cables to the RANGER 9.
13. 6 PIN AMPHENOL: For attaching optional remote
control equipment to the RANGER 9.
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RANGER 9 RANGER 9
B-7 B-7
OPERATION
FIGURE B.2 – GASOLINE ENGINE CONTROLS
6
5
7
RANGE
4
3
2
90
125
70
50
16 to 25
175
225 AC
210 DC
8
DC+
9
1
10 max
DC-
AC
1. ENGINE CHOKE CONTROL
2. IDLER CONTROL SWITCH
WARNING
3. START/STOP SWITCH
4. ENGINE HOUR METER
5. BATTERY CHARGING SYSTEM METER
GASOLINE ENGINE CONTROLS
See Figure B.2 for the location of the following features:
1. ENGINE CHOKE CONTROL: Provides
a richer air/fuel mixture for cold engine
starting conditions. See the topic
ENGINE OPERATION, below, for details
on setting the choke.
2. IDLER CONTROL SWITCH: Adjusts
the running speed of the engine. The
switch has two positions, HIGH and
AUTO. In HIGH, the engine runs continuously at high idle. In AUTO, the
idler control works as follows:
Stick Welding, “WELDING TERMINALS ALWAYS
ON” mode: The engine accelerates to high speed
when the electrode touches the work and strikes a
welding arc. The engine returns to low idle approximately 10-14 seconds after welding stops, as
long as no auxiliary power is being drawn.
LINCOLN
ELECTRIC
RANGER 9
1
5
CHOKE
AUTO
START
RUN
IDLER
STOP
HIGH
2
3
3. START/STOP SWITCH: Has three positions,
START, RUN, and STOP. When the switch is held
in the START position, the starter motor cranks
over the engine – release the switch once the
engine starts. The STOP position stops the
engine.
NOTE: If you place the switch in the START position when the engine is running, you may damage
the ring gear or starter motor.
4. ENGINE HOUR METER: Records engine running
time. Use the meter to determine when to perform
required maintenance.
5. BATTERY CHARGING SYSTEM METER: Shows
whether the charging circuit is performing its job of
charging the battery when the engine is running.
The meter will register discharge during starting,
but then the needle should return to a position
slightly toward positive during running. The needle
will hold position when the engine stops.
4
Wire Welding, “WELDING TERMINALS ALWAYS
ON” mode: The engine accelerates to high speed
when the wire feeder gun trigger or amptrol is
closed. The engine returns to low idle approximately 10-14 seconds after the gun trigger is
released and the welding stops, provided that no
auxiliary power is being drawn.
Auxiliary Power: The engine accelerates to high
speed when power is drawn at the receptacles for
lights or tools. The engine returns to low idle
approximately 10-14 seconds after demand for
auxiliary power stops.
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RANGER 9 RANGER 9
ENGINE OPERATION
WARNING
DO NOT RUN THE ENGINE AT EXCESSIVE SPEEDS.
The maximum allowable high idle speed for the
RANGER 9 is 3750 RPM, no load. Do NOT adjust the
governor screw on the engine. Severe personal injury
and damage to the machine can result if it is operated
at speeds above the maximum rated speed.
Read and understand all safety instructions included in
the Onan instruction manual that is shipped with your
RANGER 9.
B-8 B-8
OPERATION
BEFORE STARTING THE ENGINE
Check and fill the engine oil level:
1. Be sure the machine is on a level
surface.
2. Remove the engine oil dipstick and wipe it with a
clean cloth. Reinsert the dipstick and check the
level on the dipstick. On the Onan engine, the oil
fill cap and dipstick are a unit. See Figure D.1 in
the Maintenance section of this manual.
3. Add oil (if necessary) to bring the level up to the
full mark. Do not overfill.
Replace the dipstick and tighten it securely.
Check and fill the engine fuel tank:
1. Remove the fuel tank cap.
2. Fill the tank approximately 4 inches
(100 mm) from the top of the filler neck to allow for
fuel expansion (observe the fuel gauge). DO NOT
FILL THE TANK TO THE POINT OF OVERFLOW.
3. Replace the fuel tank cap and tighten securely.
NOTE: Use only fresh, unleaded gasoline with octane
rating 87 or higher. Gasoline/alcohol blends are
approved for use with your engine as long as the blend
does not exceed 10% ethyl alcohol by volume. Other
gasoline/alcohol blends are not approved, and their
use may damage fuel system and engine parts.
NOTE: Purchase gasoline in quantities that will be
used within 30 days, to assure freshness.
STARTING THE ENGINE
NOTE: Remove all loads connected to the AC power
receptacles before starting the gasoline engine.
2. Hold the Engine Switch in the START
position. Release the switch when the
engine starts. Slowly return the choke
control to the full “in” position.
The engine will run at high idle for 10-14 seconds,
then go to low idle.
3. Let the engine run at low idle for a few minutes to
warm up before you use the RANGER 9 for welding or auxiliary power.
If the engine will not start, see the Trouble-
shooting section of this manual.
STOPPING THE ENGINE
1. Remove all welding and generator power loads
and let the engine cool by running it for several
minutes at low idle.
2. Stop the engine by placing the Engine
Switch in the STOP position.
A fuel shutoff valve is not required on the
RANGER 9 because the fuel tank is mounted
below the engine.
BREAK-IN PERIOD
Any engine will use a small amount of oil during its
“break-in” period. For the gasoline engine on the
RANGER 9, break-in is about 50 running hours.
Check the oil at least twice a day during break-in.
Change the oil after the first 25 hours of operation.
Change the oil filter at the second oil change. For
more details, see the Maintenance section of this
manual.
For a “cold” engine:
1. Set the Idler Control Switch in
the AUTO position.
Use the Choke Control as follows:
If the engine is cold, pull the choke
control out. If the engine is warm or
hot, DO NOT use the choke control.
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RANGER 9 RANGER 9
CAUTION
During break-in, subject the RANGER 9 to moderate
loads. Avoid long periods running at idle. Before
stopping the engine, remove all loads and allow the
engine to cool several minutes.
B-9 B-9
OPERATION
TABLE B.1
TYPICAL RANGER 9 FUEL CONSUMPTION
ONAN P218 PERFORMER
Low Idle – No Load, 2150 RPM .40 Gallons/hour (1.5 liters/hour)
High Idle – No Load, 3700 RPM .82 Gallons/hour (3.10 liters/hour)
AC CC Weld Output, 250 Amps @ 25 Volts 1.7 Gallons/hour (6.5 liters/hour)
DC CC Weld Output, 250 Amps @ 25 Volts 1.7 Gallons/hour (6.5 liters/hour)
DC CV Weld Output, 250 Amps @ 25 Volts 1.7 Gallons/hour (6.5 liters/hour)
Auxiliary Power, 9000 kVA 1.7 Gallons/hour (6.5 liters/hour)
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RANGER 9 RANGER 9
B-10 B-10
OPERATION
WELDING OPERATION
GENERAL INFORMATION
WARNING
• Do not touch electrically live parts or electrodes with your skin or wet clothing.
• Do not breathe welding fumes or gases.
• Use ventilation or exhaust to remove
welding fumes from the breathing area.
• Keep flammable material away.
• Wear eye, ear, and body protection.
The RANGER 9 can deliver from 40 to 250 amps of
constant current for AC/DC stick welding or from 40 to
250 amps of constant voltage current for DC semiautomatic wire feed welding. AC/DC TIG welding is possible across the entire range from 40 to to maximum
rated output. Output can be adjusted by setting the
POLARITY SWITCH, the OUTPUT RANGE dial, and
the FINE CONTROL dial on the output control panel to
the settings that are best for your selected welding
process.
To use the RANGER 9 for AC/DC
Constant Current Stick Welding:
1. Remove the flange nuts from output terminals and
place the work and electrode welding cables over
the terminals. See Figure B.3. Replace and tighten the flange nuts securely. Be sure the connections are tight.
2. Select the appropriate electrode. See “Welding
Tips 1” included with your RANGER 9.
3. Attach the work clamp securely to the work you
are welding.
4. Insert the electrode into the electrode holder.
5. Set the IDLER CONTROL to AUTO and start the
gasoline engine. See ENGINE OPERATION in this
section of the manual.
6. Set the OUTPUT RANGE dial to a setting equal to
or slightly higher than the welding current recommended for the electrode being used.
7. Set the POLARITY SWITCH to the desired polarity.
8. Set the FINE OUTPUT CONTROL. Use a setting
that results in the highest output at the lowest setting of the RANGE switch for the application.
9. Strike an arc and begin welding.
After you finish welding:
1. Stop the gasoline engine. See ENGINE OPERATION in this section of the manual.
2. Allow the electrode and work to cool completely.
3. Remove the work clamp from the work.
4. Remove any remaining piece of electrode fr om the
electrode holder.
5. If you are finished using the RANGER 9 for welding, disconnect the welding cables from the weld
output terminals. Reattach the flange nuts and
leave them on the terminals.
8
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RANGER 9 RANGER 9
FIGURE B.3 – WELDING CIRCUIT CONNECTIONS FOR STICK WELDING
6
5
7
4
8
3
RANGE
50
16 to 25
WARNING
LINCOLN
70
ELECTRIC
1
175
225 AC
210 DC
2
90
125
9
AC
10 max
RANGER 9
DC+
DC-
CHOKE
AUTO
START
RUN
IDLER
STOP
HIGH
5
4
6
7
1
1. OUTPUT CONTROL PANEL
2. ELECTRODE CABLE
3. ELECTRODE HOLDER
4. ELECTRODE
5. OUTPUT TERMINALS
6. WORK
7. WORK CLAMP
8. WORK CABLE
2
3
B-11 B-11
OPERATION
To Use the RANGER 9 for AC/DC TIG
(Constant Current) Welding:
1. Connect the K930-1 TIG Module to the RANGER
9. Follow the installation instructions provided
with the kit. Also be sure to follow the special
machine grounding instructions given in the manual.
2. Refer to the instruction manual with the TIG module (IM 528) for operation with a RANGER 9 and
proper machine settings.
3. Set the OUTPUT RANGE dial to the appropriate
setting for the electrode you are using. Refer to
IM -528 with the TIG module or refer to Table B.2
for AC TIG welding.
4. Set the POLARITY SWITCH to the desired polarity.
5. Do not AC TIG weld on the 250 AC range setting.
The output current may exceed the rating of the
RANGER 9.
6. Start the arc and begin welding.
NOTE: When using the RANGER 9 for AC TIG weld-
ing of aluminum, the TIG Module is to be set
for CONTINUOUS HF.
After you finish welding:
1. Stop the gasoline engine. See ENGINE OPERATION in this section of the manual.
2. Allow the electrode and work to cool completely.
3. Remove the work clamp from the work.
Tungsten Diameter (inches) Range Switch Settings Appropriate Current Range
1/8 90 or 120 160 - 200 Amps
3/32 45 or 90 45 - 140 Amps
1/16 45 or 90 45 - 100 Amps
Tungsten Diameter (inches) Range Switch Settings Appropriate Current Range
1/8 90, 120, or 180 160 - 250 Amps
3/32 45, 90, or 120 100 - 180 Amps
1/16 45 or 90 60 - 120 Amps
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RANGER 9 RANGER 9
TABLE B.2 - AC TIG WELDING – TIG ELECTRODE/RANGE SETTINGS
Settings for Pure Tungsten
Settings for 1% Thoriated Tungsten
B-12 B-12
OPERATION
To Use the RANGER 9 for DC Wire Feed
Welding (Constant Voltage):
1. Connect one of the following: the LN-25, LN-7,
LN-8, or LN-742 Wire Feeder. Follow the installation instructions in the ACCESSORIES section of
this manual.
2. Some recommended Innershield electrodes are:
NR-211MP, NR-311, NR-203 series, as well as
Lincore®33 and 55 hardfacing electrodes.
Diameters from .035 (0.9mm) up to and including
5/64” (2.0mm) can be used. 5/64” (2.0mm) NS3M can be used in limited applications. Cable
length and other conditions can affect the ultimate
results of this application. Request Lincoln publication N-675 for additional information.
Recommended Outershield electrodes are .045,
.052, and 1/16 Outershield 71 and 1/16
Outershield 70. Request Lincoln publication
GS-200 for additional information.
For MIG welding, the recommended electrodes
are .030, .035 and .045 L-50 and L-56. You must
use a blended shielding gas such as C25 (75%
Argon, 25% CO2). Request Lincoln publication
GS-100 for additional information.
4. Set the OUTPUT RANGE dial to either HIGH,
MED, or LOW depending on your wire size and
speed.
5. Set the POLARITY SWITCH to either WIRE FEED
DC+ or WIRE FEED DC- (red), depending on the
electrode.
6. Set the FINE OUTPUT CONTROL to a setting that
gives the most stable arc for the application.
7. Strike an arc and begin welding.
After you finish welding:
1. Stop the gasoline engine. See ENGINE OPERATION in this section of the manual.
2. Allow the work to cool completely. The wire gun
and wire are “cold.”
3. Remove the work clamp from the work.
3. Set the IDLER CONTROL to “AUTO” for the LN-25
or LN-742 or “HIGH” for the LN-7 or LN-8 and
start the gasoline engine. See ENGINE OPERATION in this section of the manual.
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RANGER 9 RANGER 9
B-13 B-13
OPERATION
SUMMARY OF WELDING
PROCESSES AND MACHINE
SETTINGS
Table B.3 summarizes the requirements for various
welding processes you can perform with the
RANGER 9.
TABLE B.3 - SUMMARY OF WELDING PROCESSES
Process Control Idle Output Welding Electrode To Start Welding
Cable Mode Control Terminals State When
Used Switch Switch Not Welding
Stick – CC No Auto At Welder Always on Hot Touch electrode to work.
Welding starts immediately and engine goes to
high idle.
TIG - CC Yes Auto Remote Remote Cold Press Amptrol. Welding
K930-1/K936-1 starts immediately.
(With Amptrol)
Wire Feed - CV, Yes Auto Remote Remote Cold Press gun trigger,
LN-25 with 42V RANGER 9 contactor
Remote Control Kit closes. Welding starts
immediately and engine
goes to high idle.
Wire Feed - CV No Auto At Welder Always on Cold Press gun trigger, LN-25
LN-25 with internal contactor closes. Weldcontactor ing starts immediately
and engine goes to high
idle.
Wire Feed - CV Yes Auto Remote Remote Cold Press gun trigger,
LN-742 RANGER 9 contactor
closes. Welding starts
immediately and engine
goes to high idle.
Wire Feed - CV, Yes High Remote Remote Cold Press gun trigger,
LN-7 RANGER 9 contactor
closes. Welding starts
immediately.
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RANGER 9 RANGER 9
B-14 B-14
OPERATION
AUXILIARY POWER
WARNING
Be sure that any electrical equipment plugged into the
generator AC power receptacles can withstand a
±10% voltage and a ±3% frequency variation.
GENERAL INFORMATION
The RANGER 9 generator is rated at 9000 continuous
watts. It provides both 115 volt and 230 volt power.
You can draw up to 80 amps total from the 115 volt
receptacles, but no more than 20 amps (15 amps CSA)
from each receptacle at once. See Tables B.4A and
B.4B. Up to 40 amps can be drawn from the single 230
volt receptacle.
The current rating of any plug used must be at least
equal to the current load being drawn from the receptacle. Do not try to connect the receptacles in parallel.
Electrical loads in watts are calculated by multiplying
the voltage rating of the load by the number of amps it
draws. (This information is given on the load device
nameplate.) For example, a device rated 115 volts, 2
amps will need 230 watts of power (115 x 2 = 230).
You can use Table B.6, GENERATOR POWER APPLICATIONS, to determine the wattage requirements of
some common types of loads you can power with the
RANGER 9. Be sure to read the notes at the bottom
of the table.
Powering Motors
You can start most 1.5 HP, single-phase electric
motors if there is no load on the motor or other load
connected to the RANGER 9. After starting, the motor
may be run at full load. Larger motors (up to 2 HP)
may be started and run as long as you don’t exceed
the current rating of the receptacle. This may mean
that only 230 volt motors of this size may be operated.
Using Auxiliary Power and Welding at the
Same Time
It is possible to weld and use the RANGER 9 for auxiliary power at the same time. However, the size of the
loads you can power is reduced when you weld. See
Table B.5 in this section of the manual for a list of permissible simultaneous welding and load ratings. The
table assumes that power is being drawn from either a
115 volt or the 230 volt receptacle, but not both at the
same time.
NOTE: For simultaneous welding and power, set the
OUTPUT CONTROL at “10” for maximum auxiliary
power. At settings below “10,” only incandescent
loads should be connected to the auxiliary receptacles.
To use the generator as an auxiliary power supply:
1. Start the gasoline engine. See ENGINE OPERATION in this section of the manual.
2. Set the IDLER CONTROL to the desired operating
mode, HIGH or AUTO. Set the OUTPUT CONTROL to “10.” See Figure B.1.
3. Plug the load(s) into the appropriate 115 volt or
230 volt power receptacle.
NOTE: The 115 volt auxillary power receptacles
should only be used with three-wire grounded
type plugs or approved double insulated
devices with two-wire plugs.
MAXIMUM CURRENT DRAW FROM 115V DUPLEX
Load From Each Total Each Total
115V/230V Half of from Half of from
Dual Voltage Each 115V Both 115V Each 115V Both 115V
Receptacle Duplex Duplexes Duplex Duplexes
0 20* 78 15 60
2.2 KW 20* 60 15 60
4.5 KW 20* 40 15 40
6.7 KW 20* 20 15 20
9.0 KW 0 0 0 0
*NEMA 5-20P plug required for 20 amp draw.
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RANGER 9 RANGER 9
TABLE B.4A
RECEPTACLES – NO WELDING
K1420-1 K1420-2 (CSA)
TABLE B.4B
MAXIMUM CURRENT DRAW FROM OPTIONAL
115V GFCI DUPLEX RECEPTACLES – NO WELDING
K1420-1* K1420-2**
Load From Each Total Each Total
115V/230V Half of from Half of from
Dual Voltage Each 115V Both 115V Each 115V Both 115V
Receptacle Duplex Duplexes Duplex Duplexes
015401530
2.2 KW 15 40 15 30
4.5 KW 15 40 15 30
6.7 KW 15 20 15 20
9.0 KW 0 0 0 0
*Maximum current draw from each 115V GFCI Duplex is 20 amps.
**Maximum current draw from each 115V GFCI Duplex is 15 amps.
B-15 B-15
OPERATION
TABLE B.5 - SIMULTANEOUS WELDING AND AUXILIARY POWER
Output Selector Welding Permissible Power in Watts Permissible Auxiliary Current
Setting Output (Unity Power Factor) in Amperes
@ 115V @230V
250 250 None — —
200 200 2500 22 11
160 160 3700 32 16
120 120 5000 44 22
90 90 6000 52 26
45 45 7500 65 32.5
CV Low 200 5000 43 21.5
60 7500 65 32.5
CV Medium 250 2750 40 20
80 6500 56 28
CV High 250 1200 10 5
100 6000 52 26
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RANGER 9 RANGER 9
B-16 B-16
OPERATION
TABLE B.6
TYPICAL GENERATOR POWER APPLICATIONS
Suggested Power Applications Running Watts *Start-up Watts
*Air Compressor - 3/4 HP 1,250 3,100 - 5,000
*Airless Sprayer - 1/3 HP 600 1,500 - 2,400
Chain Saw 1,200
Circular Saw 1,200
Coffee Maker 1,000
*Deep Freezer 500 750 - 2,000
*Electric Motor - 1 HP 1,000 2,500 - 4,000
Electric Range (1 element) 1,500
Electric Skillet 1,250
*Furnace Fan - 1/3 HP 1,200 3,000 - 4,800
Portable Grinder (4 1/2”) 600
Portable Grinder (7”) 2,000
Halogen Work Light 500
Hand Drill - 1/4” 500
Hand Drill - 3/8” 700
1500 Watt Heater 1,750
Hedge Trimmer 450
Light Bulb 100
Reciprocating Saw 900
Radial Arm Saw 2,600
Radio 50
*Refrigerator/Freezer (small) 600 1,500 - 2,400
Slow Cooker 200
*Submersible Pump - 1 HP 1,000 2,500 - 4,000
*Sump Pump 600 1,500 - 2,400
Toaster 1,100
Weed Trimmer 500
Lincoln 100 or 125 Amp Wire Feeder/Welder 4,000
NOTES:
Wattages listed are approximate. Check your equipment for actual wattage.
Equipment with unusually high *START-UP WATTS are listed. For start-up of other equipment listed in the
table, multiply RUNNING WATTS by 2.
Multiple loads can be used as long as the total load does not exceed 9,000 watts. Be sure to start the
largest loads first. For example, a 1 HP motor needs approximately 1,000 watts while running but may
require 2,500 watts to start. Some inductive motors may require as much as 4 times running watts to
start.
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RANGER 9 RANGER 9
Section C-1 Section C-1
TABLE OF CONTENTS
- ACCESSORIES -
Accessories...........................................................................................................................Section C
Options/Accessories...................................................................................................................C-2
TIG Welding..........................................................................................................................C-3
Semiautomatic FCAW and MIG Welding.............................................................................C-3
Connection of Lincoln Electric Wire Feeders.......................................................................C-4
Connection of the K867 Universal Adapter...................................................................C-4
Connection of the LN-25 “Across the Arc”...................................................................C-5
Connection of the LN-25 with 42V Remote Output Control Module ............................C-6
Connection of the LN-7 Using the K584 Input Cable Assembly...................................C-7
Connection of the LN-7 Using the K867 Universal Adapter .........................................C-8
Connection of the LN-8 .................................................................................................C-9
Connection of the LN-742 ...........................................................................................C-10
Connection of the K488 SG Control Module and the K487 Magnum Spool Gun......C-11
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RANGER 9 RANGER 9
C-2 C-2
ACCESSORIES
OPTIONS/ACCESSORIES
The following options/accessories are available for
your RANGER 9 from your local Lincoln Distributor.
Two-Wheel Trailer (K768-2) – For in-plant or yard
towing of the RANGER 9. (Not intended for highway
towing as equipped. For highway use of this trailer,
consult applicable federal, state, and local laws about
possible requirements for brakes, lights, fenders, etc.
Two-Wheel Undercarriage (K889-2) – For moving the
RANGER 9 by hand. Overall width is 29 inches
(74 mm).
Caster for Undercarriage (K893-1) – Mounts to the
front of the K889-2 to allow easy movement on
smooth surfaces. Includes a 6 inch (152.4 mm) diameter hard rubber wheel and convenient toe-on, toe-off
locking brake.
Four-Wheel Undercarriage (K933-1) – Allows movement of the RANGER 9 by hand without lifting. Easily
assembles to RANGER 9. Includes two rugged, hard
molded wheels and two durable pneumatic tires. The
spring loaded handle provides convenient, comfortable steering. The K934-1 Bracket is available for
mounting a gas cylinder on the undercarriage.
Bracket for Mounting a Gas Cylinder to a K933-1
Undercarriage (K934-1) – Easily mounts on the back
of the K933-1 Four Wheel Undercarriage to carry a
welding gas cylinder.
Canvas Cover (K886-1) – For protecting the
RANGER 9 when it’ s not in use. Material is flame retardant, mildew resistant, and water repellent. Color: red.
Power Plug Kit (K802-N) – Provides four 20 amp, 115
volt plugs and one 50 amp, dual voltage (115/230V),
full kVA plug. NOTE: For CSA machines K1418-2 or
K1419-2 and machines with GFCI receptacles, use
Power Plug Kit K802-R.)
Power Plug Kit (K802-R) –Provides four 15 amp, 115
volt plugs and one 50 amp, dual voltage (115/230V),
full kVA plug.
Accessory Kit (K702) – Includes the following:
• Thirty-five feet (10.5 meters) of #2 AWG electrode
cable
• Thirty feet (9.1 meters) of #2 AWG work cable
• Headshield with No. 12 filter.
• GC300 work clamp
Spark Arrester Kit (K894-1) – A field-installed kit for
the RANGER 9 gasoline engine muffler exhaust pipe
(either engine option). Includes a heavy-gauge steel,
approved spark arrester and mounting clamp.
Rotor Removal Kit (S20788) – A service kit with thru
and impact bolts for removing the generator rotor from
the tapered engine crankshaft.
Remote Control (K857) – Includes a control box with
25 feet (7.5 meters) of 4-conductor cable. Allows output voltage to be controlled remotely.
GFCI Receptacle Kit (K896-1) – Includes two UL
approved 115 volt ground fault circuit interrupter
receptacles (duplex type) with covers and installation
instructions. Each receptacle is rated 15 amps, but
the maximum total current from each GFCI duplex is
limited to 20 amps. The GFCI receptacles replace the
two factory installed 115 volt duplex receptacles.
• Cooltong®300 insulated electrode holder
The cables are rated at 250 amps, 40% duty cycle.
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RANGER 9 RANGER 9
C-3 C-3
ACCESSORIES
TIG WELDING
TIG Module (K930-1) - The TIG Module is an acces-
sory that provides high frequency and shielding gas
control for AC and DC GTAW (TIG) welding applications. It provides contactor control of constant current
welding power sources having an internal contactor.
The K930-1 TIG Module is supplied without accessories.
Arc Start switches, Amptrols, cables, torches and
mounting brackets must be purchased separately.
Docking Kit (K939-1) - For mounting the K930-1 TIG
Module on top of the RANGER 9.
Control Cable (K936-1) - Control cable for connecting
the K930-1 TIG Module to a RANGER 9 9-Socket (at
the TIG Module) to 14-pin (at RANGER 9). (Contains
circuits 2, 4, 31, 32, 75, 76, 77 and ground.)
Arc Start Switch (K814) - A remote start switch used
in conjunction with the K930-1 TIG Module to energize
the output terminals via the TIG Module.
K812 – Hand Amptrol.
K870 – Foot Amptrol.
NOTE: TIG welding requires a Magnum™ TIG Gun,
appropriate Magnum Parts Kit and argon gas.
SEMIAUTOMATIC FCAW AND MIG WELDING
LN-25 Wire Feeder K449 – This portable unit provides
CC/CV for flux-cored arc welding (FCAW) and metal
inert gas welding (MIG). Includes a gas solenoid and
an internal contactor that allows across-the-arc operation with no control cable. The LN-25 provides a
“cold” electrode until the gun trigger is pressed. For
voltage control at the feeder, a K444-1 Remote Voltage
Control Kit is required. Refer to connection instructions later in this section.
LN-7 or LN-8 Wire Feeder – Semiautomatic, constant speed wire feeders.
NOTE: Gas-shielded welding requires a Magnum
Gun. Gasless welding requires an Innershield Gun.
LN-742 Wire Feeder – A semiautomatic wire feeder
with “cold” electrode. Requires K589-1 Remote
Control Kit for remote voltage and wire speed control.
K857 Remote Voltage Control Kit connects to the
RANGER 9 for voltage control at the feeder. Refer to
connection instructions later in this section.
Magnum Spool Gun (K487-25) – A lightweight, semiautomatic wire feeder for aluminum welding with
argon gas. Has built-in remote wire speed control in
the handle. Requires the K488 SG Control Module.
Includes 50 feet (15.2 meters) of power cable.
SG Control Module (K488) – Controls wire speed and
gas flow. Provides the required control interface
between the RANGER 9 and the K487-25 Magnum
Spool Gun.
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RANGER 9 RANGER 9
C-4 C-4
ACCESSORIES
CONNECTION OF LINCOLN ELECTRIC WIRE FEEDERS
WARNING
ELECTRIC SHOCK can kill.
• Do not operate with panels open.
• Disconnect NEGATIVE (-) BATTERY
LEAD before servicing.
• Do not touch electrically live parts.
MOVING PARTS can injure.
• Keep guards in place.
• Keep away from moving parts.
• Only qualified personnel should install,
use or service this equipment.
CONNECTION OF THE RANGER 9 TO
WIRE FEEDERS USING K867 UNIVERSAL
ADAPTER (SEE FIGURE C.1)
NOTE: When you use the RANGER 9 with non-
Lincoln Electric wire feeders or with certain earlier models of Lincoln wire feeders,
you will require the K867 Univeral Adapter.
The following discussion and connection
diagram explain in general how to make
the proper connections.
1. Shut the welder off.
2. Connect the electrode cable from the wire feeder to
the “ELECTRODE” terminal of the welder. Connect
the work cable to the “TO WORK” terminal of the
welder.
NOTE: Welding cable must be sized for current
and duty cycle of application.
3. Connect the K867 Universal Adapter to the 14 pin
amphenol of the RANGER 9 as shown in Figure F.1.
Make the proper connections for local or remote
control according to Figure C.1 and the following
NOTES, indicated on the figure:
A. These leads are not used for the RANGER 9.
Insulate each unused lead individually.
B. For wire feeders that return a signal for weld-
ing output, use an isolation relay to close leads
2 and 4.
C. Refer to the OPER-
ATION section of this manual for maximum
auxiliary current draw.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch in the “HIGH” position.
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
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RANGER 9 RANGER 9
FIGURE C.1 – RANGER 9/K867 UNIVERSAL ADAPTER CONNECTION DIAGRAM
14 PIN
AMPHENOL
C
A
B
C-5 C-5
ACCESSORIES
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the wire feeder and set
the welding voltage with the output “CONTROL” to
a CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place
the output control switch in the “CONTROL REMOTE” position.
CONNECTION OF THE LN-25 TO THE
RANGER 9 “ACROSS THE ARC”
(SEE FIGURE C.2.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-25 to the
“ELECTRODE” terminal of the welder. Connect the
work cable to the “TO WORK” terminal of the
welder.
NOTE: Welding cable must be sized for current
and duty cycle of application.
3. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
6. Place the “IDLER” switch in the “AUTO” position.
7. Place the WELDING TERMINALS switch in the
“ALWAYS ON” position.
8. Adjust wire feed speed at the LN-25 and adjust the
welding voltage with the output “CONTROL” at the
welder.
NOTE: If optional remote control is used, place
the output control switch in the “CONTROL REMOTE” position.
4. Set the “RANGE” switch to the “WIRE FEED” position.
5. Attach the single lead from the LN-25 control box
to the work using the spring clip on the end of the
lead. This is only a control lead — it carries no
welding current.
FIGURE C.2 – RANGER 9/LN-25 ACROSS THE ARC CONNECTION DIAGRAM
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RANGER 9 RANGER 9
C-6 C-6
ACCESSORIES
CONNECTION OF THE LN-25 TO THE
RANGER 9 WITH 42 VOLT REMOTE
OUTPUT CONTROL MODULE
(SEE FIGURE C.3.)
1. Shut the welder off.
2. Connect the electrode cable from the K626-XX
Input Cable Assembly to the “ELECTRODE” terminal of the welder and to the LN-25 wire feeder.
Connect the work cable to the “TO WORK” terminal of the welder.
NOTE: Welding cable must be sized for current
and duty cycle of application.
3. Connect the input cable from the K626-XX Input
Cable Assembly to the 14 pin amphenol on the
RANGER 9 and the input cable plug on the LN-25.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch to the “AUTO” or “HIGH”
position as desired.
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-25 and set the
welding voltage with the output “CONTROL” at a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place
the output control switch in the “CONTROL REMOTE” position.
RANGER 9/LN-25 WITH 42 VOLT REMOTE OUTPUT CONTROL MODULE CONNECTION DIAGRAM
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RANGER 9 RANGER 9
FIGURE C.3
C-7 C-7
ACCESSORIES
CONNECTION OF THE LN-7 TO THE
RANGER 9 USING K584 INPUT CABLE
ASSEMBLY (SEE FIGURE C.4.)
NOTE: If your LN-7 comes equipped with a K291 or
K404 Input able, refer to CONNECTION OF
THE LN-7 Using K867 UNIVERSAL ADAPTER,
rather than this discussion, to connect your
RANGER 9 for wire feed welding.
1. Shut the welder off.
2. Connect the electrode cable from the K584-XX
Input Cable Assembly to the “ELECTRODE” terminal of the welder and to the LN-7 wire feeder.
Connect the work cable to the “TO WORK” terminal of the welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the input cable from the K584-XX Input
Cable Assembly to the 14 pin amphenol on the
RANGER 9 and the input cable plug on the LN-7.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-7 and set the
welding voltage with the output “CONTROL” at a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place the
output control switch in the “CONTROL
REMOTE” position.
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch in the “HIGH” position.
FIGURE C.4
RANGER 9/LN-7 WITH K584 INPUT CABLE ASSEMBLY CONNECTION DIAGRAM
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RANGER 9 RANGER 9
C-8 C-8
ACCESSORIES
CONNECTION OF THE LN-7 TO THE
RANGER 9 USING K867 UNIVERSAL
ADAPTER (SEE FIGURE C.5.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-7 to the
“ELECTRODE” terminal of the welder. Connect the
work cable to the “TO WORK” terminal of the
welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the K867 Universal Adapter to the LN-7
wire feeder and the 14 pin amphenol of the
RANGER 9 as indicated in Figure C.5. Make the
proper connections for local or remote control
according Figure C.5 and the following NOTES,
indicated on the figure:
A. Insulate each unused lead individually.
B. Splice the leads and insulate.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-7 and set the
welding voltage with the output “CONTROL” to a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place the
output control switch in the “CONTROL
REMOTE” position.
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch in the “HIGH” position.
FIGURE C.5
RANGER 9/LN-7 WITH K867 ADAPTER CONNECTION DIAGRAM
A
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RANGER 9 RANGER 9
B
C-9 C-9
ACCESSORIES
CONNECTION OF THE LN-8 TO THE
RANGER 9 (SEE FIGURE C.6.)
CAUTION
1. Shut the welder off.
2. Connect the electrode cable from the LN-8 to the
“ELECTRODE” terminal of the welder. Connect the
work cable to the “TO WORK” terminal of the
welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the K867 Universal adapter to the LN-8
wire feeder and the 14 pin amphenol of the
RANGER 9 as indicated in Figure C.6. Make the
proper connections for local or remote control
according to Figure C.6 and the following NOTES,
indicated on the figure:
A. Insulate each unused lead individually.
B. Splice the leads and insulate.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch in the “˙HIGH” position.
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-8 and set the
welding voltage with the output “CONTROL” to a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is ued, place the
output control switch in the “CONTROL
REMOTE” position.
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RANGER 9 RANGER 9
FIGURE C.6
RANGER 9/LN-8 CONNECTION DIAGRAM
A
B
C-10 C-10
ACCESSORIES
CONNECTION OF THE LN-742 TO THE
RANGER 9 (SEE FIGURE C.7.)
1. Shut the welder off.
2. Connect the electrode cable from the LN-742 to
the “ELECTRODE” terminal of the welder. Connect
the work cable to the “TO WORK” terminal of hte
welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the K592 Control Cable to the 14 pin
amphenol on the RANGER 9 and the input cable
plug on the LN-742.
4. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
5. Set the “RANGE” switch to the “WIRE FEED” position.
6. Place the “IDLER” switch in the “AUTO” or “HIGH”
position as desired.
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary volage. If this
voltage goes over 140 volts, wire feeder control circuits may be damaged. The engine governor setting
is preset at the factory — do not adjust above RPM
specifications listed in this manual.
7. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
8. Adjust wire feed speed at the LN-742 and set the
welding voltage with the output “CONTROL” to a
CV (constant voltage) position at the welder.
NOTE: If optional remote control is used, place the
output control switch in the “CONTROL
REMOTE” position.
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RANGER 9 RANGER 9
FIGURE C.7
RANGER 9/LN-742 CONNECTION DIAGRAM
C-11 C-11
ACCESSORIES
CONNECTION OF THE K488 SG CONTROL MODULE AND K487 MAGNUM
SPOOL GUN TO THE RANGER 9
(SEE FIGURE C.8.)
1. Shut the welder off.
2. Connect the electrode cable from the SG Control
Module to the “ELECTRODE” terminal of the
welder . Connect the work cable to the “TO WORK”
terminal of the welder.
NOTE: Welding cable must be sized for current and
duty cycle of application.
3. Connect the K691-10 Input Cable to the SG
Control Module and the 14 pin amphenol of the
RANGER 9 as indicated in Figure C.8.
4. Set the slide switch on the SG Control Module to
the “Lincoln” position.
CAUTION
Be sure this switch is set to the “Lincoln” (contact closure) position before attempting to operate the SG
Control Module. Incorrect switch position could result
in damage to the SG Control Module and/or the
RANGER 9.
5. Set the welder “polarity” switch to the desired
polarity, either DC (-) or DC (+).
6. Set the “RANGE” switch to the “WIRE FEED” position.
7. Place the “IDLER” switch in the “HIGH” position.
CAUTION
Any increase of the high idle engine RPM by changing
the governor setting or overriding the throttle linkage
will cause an increase in the AC auxiliary voltage. If
this voltage goes over 140 volts, wire feeder control
circuits may be damaged. The engine governor setting is preset at the factory — do not adjust above
RPM specifications listed in this manual.
8. Place the WELDING TERMINALS switch in the
“REMOTELY CONTROLLED” position.
9. Adjust wire feed speed at the SG Control Module
and set the welding voltage with the output “CONTROL” to a CV (constant voltage) position at the
welder.
NOTE: If optional remote control is used, place the
output control switch in the “CONTROL
REMOTE” position.
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RANGER 9 RANGER 9
FIGURE C.8
RANGER 9 AND 10LX/K691-10/K488/K487 SPOOL GUN CONNECTION DIAGRAM
115VRECEPTACLE
14 PIN WIRE FEEDER
RECEPTACLE
ELECTRODE
TO WORK
TO WORK
6 PIN REMOTE
RECEPTACLE
ELECTRODE CABLE
TO CONTROL MODULE
K488 SG
CONTROL MODULE
K691-10
INPUT CABLE
K487-25
SPOOL GUN
Section D-1 Section D-1
TABLE OF CONTENTS
-MAINTENANCE-
Maintenance .........................................................................................................................Section D
Safety Precautions......................................................................................................................D-2
Routine and Periodic Maintenance ............................................................................................D-2
Engine Maintenance.............................................................................................................D-2
Change the Oil...............................................................................................................D-2
Change the Oil Filter......................................................................................................D-3
Fuel.................................................................................................................................D-3
Fuel Filter........................................................................................................................D-3
Air Cleaner......................................................................................................................D-4
Crankcase Breather .......................................................................................................D-5
Clean Engine, Clean Air Intake/Cooling Areas...............................................................D-5
Spark Plugs ....................................................................................................................D-5
Clean Spark Arrester Screen .........................................................................................D-5
Remove Combustion Deposits......................................................................................D-5
Engine Maintenance Schedule ......................................................................................D-6
Engine Maintenance Parts.............................................................................................D-6
Battery Maintenance............................................................................................................D-7
Cleaning the Battery ......................................................................................................D-7
Checking Specific Gravity..............................................................................................D-7
Checking Electrolyte Level.............................................................................................D-7
Charging the Battery......................................................................................................D-7
Welder/Generator Maintenance...........................................................................................D-7
Storage...........................................................................................................................D-7
Cleaning.........................................................................................................................D-7
Brush Removal and Replacement.................................................................................D-7
Receptacles ...................................................................................................................D-8
Cable Connections.........................................................................................................D-8
Major Component Locations ...............................................................................................D-9
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RANGER 9 RANGER 9
D-2 D-2
MAINTENANCE
SAFETY PRECAUTIONS
WARNING
• Have qualified personnel do all maintenance and
troubleshooting work.
• Turn the engine off before working inside the
machine.
• Remove guards only when necessary to perform
maintenance and replace them when the maintenance requiring their removal is complete.
• If guards are missing fr om the machine, get replacements from a Lincoln Distributor. See the EXPLODED VIEW AND PARTS LIST at the back of this manual.
Read the Safety Precautions in the front of this manual and in the instruction manual for the Onan gasoline
engine used with your machine before working on the
RANGER 9.
Keep all equipment safety guards, covers, and devices
in position and in good repair. Keep your hands, hair,
clothing, and tools away from the recoil housing, fans,
and all other moving parts when starting, operating, or
repairing this machine.
ROUTINE AND PERIODIC
MAINTENANCE
OIL: Check the oil level after every 5
hours of operation or daily. BE SURE
TO MAINTAIN THE OIL LEVEL.
Change the oil the first time after 25 hours of operation. Then, under normal operating conditions,
change the oil as specified in Table D.3. If the engine
is operated under heavy load or in high ambient temperatures, change the oil more frequently.
CHANGE THE OIL
Change the oil, while the engine is still warm, as follows:
1. Drain the oil from the drain plug located on the
engine bottom, as shown in Figure D.1. For the
RANGER 9, a short pipe nipple has been installed
to extend the drain plug access for easier serviceability.
2. Replace the cap on the drain extension and tighten
it securely.
3. Remove the oil fill cap and add oil until the level
reaches the full mark on the dipstick. Use high
quality detergent oil of API service class SF, SF/CC,
or SF/CD . See Table D.1 for recommended viscosity grades. Straight weight oils are recommended for severe duty use and at temperatures
above 32°F (0°C) for minimum oil consumption.
Always check the level with the dipstick before
adding more oil.
4. Reinstall the oil fill cap and dipstick.
ENGINE MAINTENANCE
To prevent the engine from accidentally starting, disconnect the spark plug lead before servicing the
engine.
See Table D.2 for a summary of maintenance intervals
for the items listed below. Follow either the hourly or
the calendar intervals, whichever come first. More frequent service may be required, depending on your
specific application and operating conditions. Table
D.3 shows engine maintenance replacement parts and
numbers.
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TABLE D.1
RECOMMENDED OIL VISCOSITY GRADES
CAUTION
RANGER 9 RANGER 9
D-3 D-3
MAINTENANCE
FIGURE D.1 – OIL DRAIN AND REFILL LOCATION
1
3
1. DIPSTICK/OIL FILL
2. OIL DRAIN PLUG
CHANGE THE OIL FILTER
Change the oil filter the first time after 25 hours of
operation. Then, under normal operating conditions,
change the oil filter after every other oil change. If the
engine is operated under heavy load or in high ambient temperatures, change the oil filter more frequently.
See Table D.3 for recommended maintenance intervals.
Change the oil filter as follows:
1. Drain the oil from the engine and allow the oil filter
to drain.
2. Remove the old filter (spin it off) and discard it.
Wipe off the filter mounting surface and adapter.
3. Apply a thin coat of new oil to the rubber gasket on
the new oil filter.
4. Spin the new filter onto the mounting adapter until
the gasket just touches the mounting surface, then
turn it down another 1/2 to 3/4 turn. Do not overtighten the new filter.
2
3. OIL FILTER
6. If there are no leaks, stop the engine and recheck
the oil level. If necessary, add oil to bring the level
up to the FULL mark, but do not overfill.
FUEL: At the end of each day’s use, refill the
fuel tank to minimize moisture condensation
and dirt contamination in the fuel line. Do
not overfill; leave room for the fuel to
expand.
Use only fresh, unleaded gasoline with octane rating
87 or higher . Gasoline/alcohol blends ar e approved for
use with your engine as long as the blend does not
exceed 10% ethyl alcohol by volume. Other gasoline/alcohol blends are not approved, and their use
may damage fuel system and engine parts.
FUEL FILTER: Your engine may be equipped with an
in-line fuel filter. Inspect the fuel filter periodically and
replace it if it appears dirty.
5. Refill the engine with the proper amount and type of
oil as described in the Change the Oil section,
above. Start the engine and check for leaks around
the filter element. Correct any leaks (usually by
retightening the filter, but only enough to stop leaks)
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before placing the RANGER 9 back in service.
RANGER 9 RANGER 9
D-4 D-4
MAINTENANCE
AIR CLEANER: Your air cleaner may
have only the paper element, or it may
have the cartridge and a foam precleaner. If it has the precleaner, service the
element every 50 hours and the precleaner every 25 hours. If the air cleaner doesn’t have
the precleaner, service the element every 25 hours.
Under dusty conditions, service more often. Check
the air cleaner every day or before starting the engine
for any buildup of dirt, debris, or loose or damaged
components.
CAUTION
DO NOT OIL THE ELEMENT OR USE PRESSURIZED
AIR TO CLEAN THE ELEMENT. DO NOT WASH THE
ELEMENT.
Remove the air cleaner cover:
1. Remove the cover nut, cover, element cover nut
and element cover, Figure D.2.
2. Carefully remove the foam precleaner, if equipped,
from the element.
FIGURE D.2 - AIR CLEANER
COMPONENTS, ONAN ENGINE
1
2
2A
3
4
5
6
7
1. COVER NUT
2. COVER
2A. ELEMENT COVER NUT
3. ELEMENT COVER
4. ELEMENT PRECLEANER
5. ELEMENT
6. BASE
7. AIR DEFLECTOR PLATE
To service the precleaner:
1. Wash in liquid detergent and water.
2. Squeeze dry in a clean cloth.
3. Saturate in clean engine oil.
4. Squeeze in a clean, absorbent cloth to remove all
excess oil.
To service the element:
1. Tap gently on a clean surface.
2. Inspect all air cleaner components, including cover
and base components, for wear or damage. Check
that all sealing surfaces are in good condition.
3. Replace with a new element if the old one is very
dirty, bent, or otherwise damaged.
Carefully place the precleaner back over the element
and reinstall and secure the air cleaner cover components.
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RANGER 9 RANGER 9
D-5 D-5
MAINTENANCE
CRANKCASE BREATHER: The Onan engine is
equipped with a crankcase breather that prevents
pressure from building up inside the crankcase, prevents moisture contamination from moisture, gasoline
vapors, or combustion vapors. If the breather valve
becomes sticky, it can cause oil leaks, oil consumption, rough idle, reduced power, and sludge and varnish buildup in the engine.
The breather cannot be serviced. However, it should
be periodically inspected and replaced if cracked or
broken, or if the crankcase becomes pressurized.
Evidence of high pressure includes oil leaks at the
seals or excessive oil in the air cleaner housing.
CLEAN ENGINE: Remove dirt and debris with a cloth
or brush. Do not clean with a forceful spray of water.
Water might contaminate the fuel system.
CAUTION
Periodically clean the muffler area to remove combustible debris.
CLEAN AIR INTAKE/COOLING AREAS: To ensure
proper cooling, make sure the grass screen, cooling
fins, and other external engine surfaces are always
kept clean. This will prevent overspeeding, overheating, and engine damage due to dirt or debris buildup.
Every 50 operating hours or as often as necessary,
remove the blower housing and other cooling shrouds.
Clean the cooling fins and external surfaces as necessary. Make sure to replace all the cooling shrouds.
Running the engine without the cooling shrouds will
cause damage to the engine from overheating.
CLEAN OR REPLACE SPARK PLUGS: Clean or
replace the spark plugs after every 500 hours of operation as follows.
1. Before removing the plugs, clean the base area to
keep dirt from falling into the engine through the
plug hole.
Gap Specifications: 0.025 inch (.64 mm)
FIGURE D.3 - SET SPARK PLUG GAP
Spark Plug
Ground
Electrode
Gap: 0.025 inch (.64 mm)
Gap: Onan - 0.025 inch (.64 mm)
Kohler - 0.040 inch (1.02 mm)
CLEAN SPARK ARRESTER SCREEN: If the muffler
has the optional spark arrester, remove it every 50
hours or once a year, whichever comes first, and
inspect it. Clean the arrester. Replace it if you find any
damage.
REMOVE COMBUSTION DEPOSITS: Combustion
deposits (carbon) can form on the cylinder, cylinder
head, top of the piston, and around the valves over
time, depending on engine loading conditions, type of
fuel used, and other factors that affect engine performance. Consult your local Onan engine distributor for
recommended cleaning intervals and procedures.
Wire Gauge
2. Remove and inspect the plugs. Plugs showing
signs of fouling or electrode wear should be
replaced. Do not blast the spark plugs clean with
an abrasive cleaning device. Clean the plugs by
scraping or by using a wire brush. Wash the plugs
with a commercial solvent.
3. After cleaning or when installing a new spark plug,
set the terminal gap with a feeler gauge. See
Figure D.3.
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RANGER 9 RANGER 9
D-6 D-6
MAINTENANCE
TABLE D.2
ONAN ENGINE MAINTENANCE SCHEDULE
FREQUENCY MAINTENANCE REQUIRED
Daily or Before
Starting Engine • Fill fuel tank.
• Check oil level.
• Check air cleaner for dirty2, loose, or damaged parts.
• Check air intake and cooling areas, clean as necessary2.
Every 25 Hours • Service precleaner element2.
Every 50 Hours • Service air cleaner element2.
• Change oil1.
Every 100 Hours • Check spark plug condition and gap.
• Remove cooling shrouds and clean cooling areas2.
• Change oil filter.
Note 1: Change oil every 25 hours when operating under heavy load in high ambient temperatures.
Note 2: Clean more often under dusty conditions or when airborne debris is present.
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TABLE D.3
ENGINE MAINTENANCE PARTS
Part Part Number - Onan
Oil Filter Onan 122-0645
FRAM PH3614
Fuel Filter Onan 149-2005
FRAM G1
Air Cleaner Element Onan 140-2628-01
FRAM CA140PL
Air Cleaner Precleaner Onan 140-1496
Spark Plugs Onan 167-0263
Champion®RS14YC
(.025” gap - .64 mm)
RANGER 9 RANGER 9
D-7 D-7
MAINTENANCE
BATTERY MAINTENANCE
WARNING
GASES FROM BATTERY can explode.
• Keep sparks, flame, and cigarettes
away from battery.
To prevent EXPLOSION when:
• INSTALLING A NEW BATTERY - Disconnect the
negative cable from the old battery first and connect
to the new battery last.
• CONNECTING A BATTERY CHARGER Remove the battery from the welder by
disconnecting the negative cable first,
then the positive cable and battery
clamp. When reinstalling, connect the
negative cable last. Keep the area well
ventilated.
• USING A BOOSTER - Connect the positive lead to
the battery first, then connect the negative lead to
the engine foot.
BATTERY ACID CAN BURN EYES AND
SKIN.
• Wear gloves and eye protection and be
careful when working near a battery.
Follow the instructions printed on the
battery.
NOTE: Correct the specific gravity reading by adding
four gravity points (0.004) for every five degrees the
electrolyte temperature is above 80 degrees F (27
degrees (C). Subtract four gravity points (9.004) for
every five degrees the electrolyte temperature is below
80 degrees F (27 degrees C).
CHECKING ELECTROLYTE LEVEL
If battery cells are low, fill them to the neck of the filler
hole with distilled water and recharge. If one cell is
low, check for leaks.
CHARGING THE BATTERY
When you charge, jump, replace, or otherwise connect
battery cables to the battery, be sure the polarity is
correct. Improper polarity can damage the charging
circuit. The RANGER 9 positive (+) battery terminal
has a red terminal cover.
If you need to charge the battery with an external
charger, disconnect the negative cable first, then the
positive cable before you attach the charger leads.
After the battery is charged, reconnect the positive
battery cable first and the negative cable last. Failure
to do so can result in damage to the internal charger
components.
Follow the instructions of the battery charger manufacturer for proper charger settings and charging time.
CLEANING THE BATTERY
Keep the battery clean by wiping it with a damp cloth
when dirty. If the terminals appear corroded, disconnect the battery cables and wash the terminals with an
ammonia solution or a solution of 1/4 pound (0.113 kg)
of baking soda and 1 quart (0.946 l) of water. Be sure
the battery vent plugs (if equipped) are tight so that
none of the solution enters the cells.
After cleaning, flush the outside of the battery , the battery compartment, and surrounding areas with clear
water. Coat the battery terminals lightly with petroleum jelly or a non-conductive grease to retard corrosion.
Keep the battery clean and dry. Moisture accumulation on the battery can lead to more rapid discharge
and early battery failure.
CHECKING SPECIFIC GRAVITY
Check each battery cell with a hydrometer. A fully
charged battery will have a specific gravity of 1.260.
Charge the battery if the reading is below 1.215.
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WELDER/GENERATOR
MAINTENANCE
STORAGE: Store the RANGER 9 in clean, dry, pro-
tected areas.
CLEANING: Blow out the generator and controls peri-
odically with low pressure air. Do this at least once a
week in particularly dirty areas.
BRUSH REMOVAL AND REPLACEMENT: It’s normal
for the brushes and slip rings to wear and darken
slightly. Inspect the brushes when a generator overhaul is necessary. Remove the brushes and clean the
slip rings with fine emery paper. Refer to the “Brush
Removal and Replacement” procedure in the Trouble-
shooting and Repair section of this manual.
CAUTION
Do not attempt to polish slip rings while the engine is
running.
RANGER 9 RANGER 9
D-8 D-8
MAINTENANCE
To reinstall the brushes, press them upward and slide
a cable tie or wooden stick through the brush holder
tabs. See Figure D.4. Install the brush holder into
position and secure with the screws previously
removed. Remove the cable tie or wooden stick and
the brushes will seat onto the slip rings.
FIGURE D.4 - BRUSH REMOVAL AND REPLACEMENT
6
2
1
5
RECEPTACLES: Keep the electrical receptacles in
good condition. Remove any dirt, oil, or other debris
from their surfaces and holes.
CABLE CONNECTIONS: Check the welding cable
connections at the weld output terminals often. Be
sure that the connections are always firm.
1. BRUSHES
2. CABLE TIE
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RANGER 9 RANGER 9
D-9 D-9
MAINTENANCE
FIGURE D.6 - MAJOR COMPONENT LOCATIONS
1. OUTPUT TERMINALS (LOCATION)
2. ENGINE CONTROLS
3. AUXILIARY POWER RECEPTACLES
4. OUTPUT PANEL CONTROL
5. OUTPUT RECTIFIER/REACTOR/CHOKE
6. FUEL TANK FILL
7. GASOLINE ENGINE
8. ROTOR/STATOR ASSEMBLY
9. BATTERY
10. MACHINE BASE
11. P.C. BOARD COVER
12. CAPACITOR BANK
7
6
5
8
9
12
4
3
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RANGER 9 RANGER 9
10
11
1
2
Section E-1 Section E-1
TABLE OF CONTENTS
-THEORY OF OPERATION SECTION-
Theory of Operation .............................................................................................................Section E
Battery, Starter, Engine, Rotor,
Stator, and Idler Solenoid...................................................................................................E-2
Rotor Field Feedback, Auxiliary, and Wire Feeder Power.....................................................E-3
Weld Winding, Reactor, and Range Switch...........................................................................E-4
Output Bridge, Capacitors, Choke, Polarity Switch, Contactor and Output Terminals........E-5
RANGE
SWITCH
6 PIN
AMPHENOL
14 PIN
AMPHENOL
STARTER
BY-PASS
BOARD
ENGINE
FLYWHEEL
ALTERNATOR
BATTERY
CONTACTOR CLOSURE
OUTPUT
CONTROL
115VAC
42VAC
REMOTE
SWITCH
MECHANICAL
ROTATION
IDLER
SOLENOID
ROTOR
RINGS
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
SLIP
REACTOR
STATOR
FIELD
BRIDGE
ROTOR
115 & 230VAC
RECEPTACLES
AC
OUTPUT
RECTIFIER
AC
BRIDGE
PART OF
RANGE
SWITCH
CAPACITORS
CONTACTOR CLOSURE
CHOKE
SWITCH
POLARITY
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
FIGURE E.1 – RANGER 9 BLOCK LOGIC DIAGRAM
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RANGER 9 RANGER 9
E-2 E-2
THEORY OF OPERATION
FIGURE E.2 – BATTERY, STARTER, ENGINE, ROTOR, STATOR AND IDLER SOLENOID
RANGE
SWITCH
6 PIN
AMPHENOL
14 PIN
AMPHENOL
STARTER
BY-PASS
BOARD
ENGINE
FLYWHEEL
ALTERNATOR
BATTERY
CONTACTOR CLOSURE
OUTPUT
CONTROL
115VAC
42VAC
REMOTE
SWITCH
MECHANICAL
ROTATION
IDLER
SOLENOID
ROTOR
SLIP
RINGS
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
REACTOR
STATOR
FIELD
BRIDGE
ROTOR
115 & 230VAC
RECEPTACLES
AC
OUTPUT
RECTIFIER
BRIDGE
AC
PART OF
RANGE
SWITCH
CAPACITORS
CONTACTOR CLOSURE
CHOKE
SWITCH
POLARITY
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
BATTERY, STARTER, ENGINE,
ROTOR, STATOR, AND IDLER
SOLENOID
The 12VDC battery powers the starter motor. When
the engine is started and running, the battery circuit
voltage is fed, through the printed circuit board, to the
rotating field coil in the rotor via a brush and slip ring
configuration. This excitation (“flashing”) voltage magnetizes the rotor lamination. The rotor is mechanically
coupled to the engine. This rotating magnet induces a
voltage in the stationary windings of the main alternator (stator). Four separate and isolated windings are
incorporated in the stator lamination assembly. Each
winding set has a different number of turns producing
different magnitudes of AC output voltages. The four
windings are the weld winding, the auxiliary power
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winding, the field feedback winding, and the auxiliary
power winding for wire feeders. The field feedback
winding provides rotor current during machine operation. The output of the RANGER 9 is dependent on
two criteria: the engine RPM and the amount of current
in the rotor winding.
The flywheel alternator , located on the engine, supplies
“charging” current for the battery circuit. The battery
circuit provides power for the printed circuit boar d and
also for the idler solenoid. The idler solenoid is
mechanically connected to the engine throttle linkage.
If no current is being drawn from the RANGER 9, the
printed circuit board activates the idler solenoid, which
then brings the engine to a low idle state. When output current is sensed, either weld or auxiliary , the printed circuit board deactivates the idler solenoid, and the
engine returns to high RPM.
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
RANGER 9 RANGER 9
E-3 E-3
THEORY OF OPERATION
FIGURE E.3 – ROTOR FIELD FEEDBACK, AUXILIARY, AND WIRE FEEDER POWER
RANGE
SWITCH
6 PIN
AMPHENOL
14 PIN
AMPHENOL
STARTER
BY-PASS
BOARD
ENGINE
FLYWHEEL
ALTERNATOR
BATTERY
CONTACTOR CLOSURE
OUTPUT
CONTROL
115VAC
42VAC
REMOTE
SWITCH
MECHANICAL
ROTATION
IDLER
SOLENOID
ROTOR
RINGS
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
SLIP
REACTOR
STATOR
FIELD
BRIDGE
ROTOR
115 & 230VAC
RECEPTACLES
AC
OUTPUT
RECTIFIER
BRIDGE
AC
PART OF
RANGE
SWITCH
CAPACITORS
CONTACTOR CLOSURE
CHOKE
SWITCH
POLARITY
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
ROTOR FIELD FEEDBACK,
AUXILIARY, AND WIRE FEEDER
POWER
The AC voltage developed in the field winding is fed to
the full wave field bridge. The DC output of the bridge
is filtered by the field capacitor and controlled by the
printed circuit board according to the output control
setting. This filtered and controlled voltage is fed to
the rotor winding via the brush and slip ring configuration. As the feedback voltage is increased or decreased, the outputs of the weld and auxiliary windings
are increased or decreased.
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When full field voltage is applied to the rotor and the
engine is running at high speed (3700 RPM), a 230 AC
voltage is developed in the stator auxiliary winding.
This winding is tapped to provide 115 VAC. The two
voltages (115 VAC and 230 VAC), are connected to the
appropriate receptacles and offer 9000 watts (total) of
AC power.
The auxiliary wire feeder winding offers 115VAC and is
tapped to also provide 42VAC. The current draw from
this winding should be limited to 8 amps. These voltages and remote control signals are fed through the
by-pass (filter) board to the amphenol receptacles.
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
RANGER 9 RANGER 9
E-4 E-4
THEORY OF OPERATION
FIGURE E.4 – WELD WINDING, REACTOR, AND RANGE SWITCH
RANGE
SWITCH
6 PIN
AMPHENOL
14 PIN
AMPHENOL
STARTER
BY-PASS
BOARD
ENGINE
FLYWHEEL
ALTERNATOR
BATTERY
CONTACTOR CLOSURE
OUTPUT
CONTROL
115VAC
42VAC
REMOTE
SWITCH
MECHANICAL
ROTATION
IDLER
SOLENOID
ROTOR
RINGS
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
SLIP
REACTOR
STATOR
FIELD
BRIDGE
ROTOR
115 & 230VAC
RECEPTACLES
AC
OUTPUT
RECTIFIER
BRIDGE
AC
PART OF
RANGE
SWITCH
CAPACITORS
CONTACTOR CLOSURE
CHOKE
SWITCH
POLARITY
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
WELD WINDING, REACTOR, AND
RANGE SWITCH
The stator weld winding is connected to the reactor
and range switch. The inductance in the reactor offers
an impedance to current flow. The reactor coil is
tapped at various points. As the range switch is rotated, different amounts of reactor coil ar e brought into
the current path. As more turns of reactor are brought
into the circuit, the more impedance there is to current
flow. Simply stated, the mor e r eactor in the circuit, the
lower the welding current.
If a constant voltage is desired for wire feeding, then
the reactor is bypassed and the range switch is connected to one of three taps on the stator weld winding
to provide a lower but “stiffer” output voltage.
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RANGER 9 RANGER 9
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
E-5 E-5
THEORY OF OPERATION
FIGURE E.5
OUTPUT BRIDGE, CAPACITOR, CHOKE, POLARITY SWITCH, CONTACTOR AND OUTPUT TERMINALS
RANGE
SWITCH
6 PIN
AMPHENOL
14 PIN
AMPHENOL
STARTER
BY-PASS
BOARD
ENGINE
FLYWHEEL
ALTERNATOR
BATTERY
CONTACTOR CLOSURE
OUTPUT
CONTROL
115VAC
42VAC
REMOTE
SWITCH
MECHANICAL
ROTATION
IDLER
SOLENOID
ROTOR
SLIP
RINGS
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
REACTOR
STATOR
FIELD
BRIDGE
ROTOR
115 & 230VAC
RECEPTACLES
AC
OUTPUT
RECTIFIER
BRIDGE
AC
PART OF
RANGE
SWITCH
CAPACITORS
CONTACTOR CLOSURE
CHOKE
SWITCH
POLARITY
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
OUTPUT BRIDGE, CHOKE,
POLARITY SWITCH, AND OUTPUT
TERMINALS
The AC voltage developed in the stator weld winding
is delivered, through the reactor and range switch, to
the output bridge and polarity switch. Depending
upon the setting of the polarity switch, either AC voltage or DC voltage is delivered through the output contactor, which is activated by the printed circuit board,
to the output terminals. If AC output is selected, then
the current path is from the stator weld winding
through the reactor, range switch, polarity switch and
output contactor to the output terminals. If a DC output is called for, then the current path is through the
output bridge, where the AC voltage is rectified to a
DC voltage, and then to the choke, where the DC output is filtered. The filtered DC current path is through
the polarity switch and output contactor and then on
to the output terminals.
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RANGER 9 RANGER 9
If a CV (constant voltage) mode is desired, the reactor
is passed by. The range switch applies a lower AC
voltage to the rectifier bridge. The DC output of the
bridge is filtered and “stiffened” by the capacitors.
This lower but “stiffer” DC output is passed through
the choke, polarity switch, and contactor and then on
to the output terminals.
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
Section F-1 Section F-1
TABLE OF CONTENTS
TROUBLESHOOTING & REPAIR SECTION
Troubleshooting & Repair Section.................................................................................Section F
How to Use Troubleshooting Guide ......................................................................................F-2
PC Board Troubleshooting Procedures.................................................................................F-3
Troubleshooting Guide.................................................................................................F4 - F-18
Test Procedures
Rotor Voltage Test.........................................................................................................F-19
Rotor Resistance Test ...................................................................................................F-21
Auxiliary and Field Winding Test ...................................................................................F-24
Output Rectifier Bridge Test..........................................................................................F-29
Charging Circuit Test.....................................................................................................F-31
Engine Throttle Adjustment Test...................................................................................F-33
Oscilloscope Waveforms.....................................................................................................F-37
Normal Open Circuit Voltage Waveform (115 VAC Supply)..........................................F-37
Typical DC Weld Output Waveform (CV Mode) – Machine Loaded..............................F-38
Typical DC Weld Output Waveform – Machine Loaded................................................F-39
Typical AC Weld Output Waveform – Machine Loaded................................................F-40
Abnormal Open Circuit Weld Voltage Waveform (one diode open) ..............................F-41
Abnormal Open Circuit DC Weld Voltage Waveform
(High CV Mode) – Output Capacitor Bank not Functioning ...................................F-42
Normal Open Circuit Weld Voltage Waveform (High CV Mode) ...................................F-43
Normal Open Circuit DC Weld Voltage Waveform ........................................................F-44
Normal Open Circuit AC Weld Voltage Waveform ........................................................F-45
Replacement Procedures....................................................................................................F-46
Brush Removal and Replacement ................................................................................F-46
Field Capacitor and Rectifier Bridge Removal and Replacement................................F-49
Printed Circuit Board Removal and Replacement........................................................F-52
Output Rectifier Bridge Removal and Replacement.....................................................F-55
Output Capacitor Removal and Replacement..............................................................F-58
Output Contactor Removal and Replacement..............................................................F-61
Engine Rotor Removal and Replacement (Kit S20788)................................................F-64
Retest After Repair ..............................................................................................................F-69
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RANGER 9 RANGER 9
F-2 F-2
TROUBLESHOOTING & REPAIR
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
Service and repair should be performed by only Lincoln Electric Factory Trained Personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician and machine
operator and will invalidate your factory warranty . For your safety and to avoid Electrical Shock, please
observe all safety notes and precautions detailed throughout this manual.
This Troubleshooting Guide is provided to help
you locate and repair possible machine malfunctions. Simply follow the three-step procedure
listed below.
Step 1. LOCA TE PROBLEM (SYMPTOM). Look
under the column labeled “PROBLEM (SYMPTOMS). This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the
machine is exhibiting. Symptoms are grouped
into three main categories: Output Problems,
Engine Problems, and Welding Problems.
Step 2. PERFORM EXTERNAL TESTS. The
second column, labeled “POSSIBLE AREAS OF
MISADJUSTMENT(S)”, lists the obvious external
possibilities that may contribute to the machine
symptom. Perform these tests/checks in the
order listed. In general, these tests can be conducted without removing the case wrap-around
cover.
Step 3. PERFORM COMPONENT TESTS. The
last column, labeled “Recommended Course of
Action” lists the most likely components that may
have failed in your machine. It also specifies the
appropriate test procedure to verify that the subject component is either good or bad. If there are
a number of possible components, check the
components in the order listed to eliminate one
possibility at a time until you locate the cause of
your problem.
All of the referenced test procedur es referr ed to in
the Troubleshooting Guide are described in detail
at the end of this chapter. Refer to the
Troubleshooting and Repair Table of Contents to
locate each specific Test Procedure. All of the
referred to test points, components, terminal
strips, etc., can be found on the referenced electrical wiring diagrams and schematics. Refer to
the Electrical Diagrams Section Table of Contents
to locate the appropriate diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs
safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before
you proceed. Call 216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-3 F-3
TROUBLESHOOTING & REPAIR
PC BOARD TROUBLESHOOTING PROCEDURES
WARNING
ELECTRIC SHOCK can kill.
Have an electrician install and service
this equipment. Tur n the machine OFF
before working on equipment. Do not
touch electrically hot parts.
Sometimes machine failures appear to be due to PC
board failures. These problems can sometimes be
traced to poor electrical connections. To avoid problems when troubleshooting and replacing PC boards,
please use the following procedure:
1. Determine to the best of your technical ability that
the PC board is the most likely component causing the failure symptom.
2. Check for loose connections at the PC board to
assure that the PC board is properly connected.
3. If the problem persists, replace the suspect PC
board using standard practices to avoid static
electrical damage and electrical shock. Read the
warning inside the static resistant bag and perform
the following procedures:
PC Board can be damaged by
static electricity.
• Remove your body’s static charge
before opening the static-shielding bag. Wear an anti-static wrist
ATTENTION
Static-Sensitive
Devices
Handle only at
Static-Safe
Workstations
Reusable
Container
Do Not Destroy
strap. For safety, use a 1 Meg
ohm resistive cord connected to a
grounded part of the equipment
frame.
• If you don’t have a wrist strap,
touch an unpainted, grounded,
part of the equipment frame.
Keep touching the frame to prevent static build-up. Be sure not
to touch any electrically live parts
at the same time.
• Remove the PC Board from the static-shielding bag
and place it directly into the equipment. Don’t set
the PC Board on or near paper, plastic or cloth which
could have a static charge. If the PC Board can’t be
installed immediately, put it back in the staticshielding bag.
• If the PC Board uses protective shorting jumpers,
don’t remove them until installation is complete.
• If you return a PC Board to The Lincoln Electric
Company for credit, it must be in the static-shielding
bag. This will prevent further damage and allow
proper failure analysis.
4. Test the machine to determine if the failure symp-
tom has been corrected by the replacement PC
board.
NOTE: Allow the machine to heat up so that all elec-
trical components can reach their operating
temperature.
5. Remove the replacement PC board and substitute
it with the original PC board to recreate the original
problem.
a. If the original problem does not reappear
by substituting the original board, then the
PC board was not the problem. Continue
to look for bad connections in the control
wiring harness, junction blocks, and terminal strips.
b. If the original problem is recreated by the
substitution of the original board, then the
PC board was the problem. Reinstall the
replacement PC board and test the
machine.
6. Always indicate that this procedure was followed
when warranty reports are to be submitted.
NOTE: Following this procedure and writing on the
warranty report, “INSTALLED AND SWITCHED
PC BOARDS TO VERIFY PROBLEM,” will help
avoid denial of legitimate PC board warranty
claims.
• T ools which come in contact with the PC Boar d must
be either conductive, anti-static or static-dissipative.
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RANGER 9 RANGER 9
F-4 F-4
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Major physical or electrical damage is evident.
No weld output and no auxiliary power. Engine operates normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Contact your local Lincoln
Authorized Field Service
Facility.
1. Make sure the REMOTE switch
(S4) is in the proper position –
“MACHINE CONTROL” if a
remote control unit is NOT connected to the machine.
2. Check the brushes for wear and
proper contact to the rotor slip
rings.
RECOMMENDED
COURSE OF ACTION
1. Contact The Lincoln Electric
Service Dept. (216) 383-2531 or
1-800-833-9353 (WELD).
1. Perform the Rotor Voltage
Test.
2. If the Rotor Voltage Test is normal, then perform the Rotor
Resistance Test.
3. If the Rotor Voltage Test is NOT
normal, perform the Auxiliary
and Field winding Voltage Test.
Then check the field diode
bridge (D2), the field capacitor
(C1), and the Output Control
(R3). Replace if necessary. If
the field bridge, field capacitor
and Output Control are good,
then the printed circuit board
may be faulty. Replace.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-5 F-5
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No weld output, the auxiliary
power (230-115VAC) is operating
normally. Engine operates normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. With the WELDING TERMINAL
switch in the “ALWAYS ON”
position, check the open circuit
voltage (OCV) at the welder output terminals. Normal maximum is 73 to 80VAC. Normal
DC maximum is 65 to 75VDC.
If the OCV is OK, then proceed
to Step #2. If the OCV is NOT
present at the welder output
terminals, contact your local
Lincoln Authorized Field
Service Facility.
2. Check the welding cables,
clamps, and electrode holder
for loose or broken connections.
RECOMMENDED
COURSE OF ACTION
1. Make sure the output contactor
is being activated. Also make
sure there is continuity (zero
ohms) through the contactor
contacts.
2. Disconnect lead W1 from the
output bridge (D1) and check
for the presence of 80VAC from
lead W1 to lead W2 on the main
stator. See Wiring Diagram. If
the AC voltage is NOT present,
the winding in the stator may be
faulty. Check the winding for
continuity, and test to be sure it
is NOT grounded to the stator
iron. Replace if necessary. If
the correct AC voltage is present, proceed to step #3.
3. Check the reactor, Range
Switch (S2), and associated
wiring for loose or faulty connections. Check the reactor
winding for continuity and test
to be sure it is NOT grounded to
the reactor iron.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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4. Check the choke (L1), Polarity
Switch (S1), and associated
wires for loose or faulty connections. Check the choke winding
for continuity and test to be
sure it is NOT grounded to the
choke iron.
5. Check the weld output terminals and associated wires for
loose or faulty connections.
6. Perform the Output Rectifier
Bridge Test.
CAUTION
RANGER 9 RANGER 9
F-6 F-6
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No auxiliary power at receptacles – welding output is normal – engine runs normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. If the machine is equipped with
circuit breakers, check circuit
breakers, CB2 through CB7.
Reset if tripped.
2. Make sure the Output Control
(R3) is set at the maximum
position.
3. Check for a loose or faulty
plug(s) at the power receptacle(s).
RECOMMENDED
COURSE OF ACTION
1. Check the auxiliary power
receptacles and associated
wires for loose or faulty connections.
2. Perform the Auxiliary and
Field Winding Voltage Test.
3. If the machine is equipped with
circuit breakers, check for
faulty breakers and loose or
faulty connections on associated wiring.
If for any reason you do not understand the test procedures or ar e unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-7 F-7
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Machine has low welding output and low auxiliary output.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Make sure the REMOTE switch
is in the proper position –
“MACHINE CONTROL” if a
remote control unit is NOT connected to the machine.
2. The brushes may be worn.
Contact your local Lincoln
Authorized Service Facility.
3. The Engine RPM may be low.
RECOMMENDED
COURSE OF ACTION
1. If the engine HIGH IDLE RPM is
low, then perform the Throttle
Adjustment Test.
2. Perform the Rotor Voltage
Test.
3. If the rotor voltage is low, the
field capacitor (C1) or the field
bridge (D2) may be faulty. Test
and replace if necessary.
4. Check the Output Control
potentiometer. Normal resistance is 10,000 ohms. Also
check associated wiring for
loose or faulty connections.
5. The rotor may be faulty.
Perform the Rotor Resistance
Test.
6. The printed circuit board may
be faulty. Replace.
CAUTION
7. If the engine HIGH IDLE RPM
IS OK, then the engine may
have lost horsepower and be in
need of major repair.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
F-8 F-8
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No DC welding output. AC welding
output and auxiliary power are normal.
No AC welding output. DC welding output and auxiliary power are
normal.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Make sure the Polarity switch
(S1) is in the proper position
and is “seated” correctly.
2. Make sure the electrode and
polarity are correct for the
process being used.
1. Make sure the Polarity switch
(S1) is in the proper position
and is “seated” correctly.
2. Make sure the electrode is correct for the process being used.
3. Make sure the welding cables
are not coiled or too long.
RECOMMENDED
COURSE OF ACTION
1. Perform the Output Rectifier
Bridge Test.
2. Check the choke (L1), the
Polarity switch (S1), and associated wires for loose or faulty
connections. Check the choke
winding for continuity and test
to be sure it is NOT grounded to
the choke iron.
1. Check the operation of the
Polarity switch (S1). Also check
the associated wires for loose
or faulty connections. See
Wiring Diagram.
2. Check for continuity from lead
“S2” to lead “E” located in the
main stator. See Wiring Diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-9 F-9
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
No constant voltage (CV) welding output. Constant current (CC) and the auxiliary power are operating normally.
The constant voltage (CV) welding
output is low or unstable.
Constant current (CC) and the auxiliary power are operating normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Make sure the Range switch
(S2) is in the proper position
(CV) and “seated” correctly.
2. Make sure the wire feeder and
welding cables are connected
correctly.
1. Make sure the Range switch
(S2) is in the proper position
(CV) and “seated” correctly.
2. Make sure the wire feeder and
welding cables are connected
correctly.
RECOMMENDED
COURSE OF ACTION
1. Check the operation of the
Range switch (S2) and check
the associated wires for loose
or faulty connections. See
Wiring Diagram.
2. Check for continuity from leads
C1, C2, and C3 to lead W1
located in the main stator. See
Wiring Diagram.
1. Check the operation of the
Range switch (S2) and check
the associated wires for loose
or faulty connections. See
Wiring Diagram.
2. The capacitor bank (C2, C3, C4,
C5) may be faulty. Check or
replace.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-10 F-10
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Engine will not idle down to low speed. Machine has normal weld output and auxiliary power.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE PROBLEMS
1. Make sure the Idler switch (S5)
is in the “Auto” position.
2. Make sure there is NOT an
external load on the weld terminals nor the auxiliary power
receptacles.
RECOMMENDED
COURSE OF ACTION
1. With the Idler switch (S5) in the
“AUTO” position and the engine
running, check for the presence
of 12VDC at leads #224D to
#214, located at the Idler solenoid. If 12VDC is present and
the idler solenoid is not activating, then the solenoid may be
faulty or there is a mechanical
restriction preventing it from
functioning.
2. If there is NOT 12VDC at leads
#224D to #214, then test for
12VDC from lead #224D to
ground (lead #5). See Wiring
Diagram. If 12VDC is present,
then check lead #214 for continuity (zero ohms) from the idler
solenoid to the printed circuit
board plug 8J1. Also check the
idler switch (S5) and the associated leads. See Wiring
Diagram. If the above are OK,
then the printed circuit board
may be faulty. Replace.
If for any reason you do not understand the test procedures or ar e unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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3. If there is NOT 12VDC from lead
#224D to ground (lead #5), then
check the wiring to the engine
terminal block connection. See
Wiring Diagram.
CAUTION
RANGER 9 RANGER 9
F-11 F-11
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Engine will not go to high idle when
attempting to weld. Welding output is normal when Idler switch is
in “HIGH” position. Automatic idle
function works properly when the
auxiliary power is loaded.
Engine will not go to high idle when
attempting to weld or when the
auxiliary power is loaded. Welding
output and auxiliary power output
is normal when Idler switch is in the
“HIGH” position.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE PROBLEMS
1. Make sure the welding cables
and connections are tight.
2. If attempting to “scratch” start,
the WELDING TERMINALS
switch (S6) must be in the
“ALWAYS ON” position.
1. Make sure the welding cables
and connections are tight.
2. Automatic idler may not function if the auxiliary power is
loaded to less than 150 watts.
RECOMMENDED
COURSE OF ACTION
1. Check for broken or faulty connections in the sensing leads
(#254 and #254A). Make sure
their connections are tight at
the work output terminal and
also at the Polarity switch. See
Wiring Diagram.
2. Make sure the leads are looped
three times through the current
sensor on the printed circuit
board.
3. If using a wire feeder with a
control cable, check the #2 and
#4 circuit in the cable and in the
machine. See Wiring Diagram.
1. Check for broken or faulty connections in the sensing leads
(#254 and #254A). Make sure
their connections are tight at
the work output terminal and
also at the Polarity switch. See
Wiring Diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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2. Check lead #3 making sure it is
looped through the current sensor on the printed circuit board.
3. The printed circuit board may
be faulty. Replace.
CAUTION
RANGER 9 RANGER 9
F-12 F-12
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Engine will not crank or cranks very slowly.
The engine shuts off or will not start.
The engine does not develop full power.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE PROBLEMS
1. Check for loose or faulty battery cable connections.
2. The battery may be faulty.
1. The engine may be low or out of
fuel.
2. The oil level may be low. Check
and fill to proper level.
3. The fuel filter may be clogged.
1. The fuel filter may be clogged.
Replace if necessary.
RECOMMENDED
COURSE OF ACTION
1. If the battery is replaced or
tests good, then the charging
circuit may be faulty. Perform
the Charging Circuit Test.
2. The starter motor or starter
solenoid may be faulty.
3. The engine may be hard to
crank due to a mechanical failure in the engine.
1. The oil pressure switch may be
faulty. Replace if necessary.
See Wiring Diagram.
1. Due to wear, the engine may be
in need of major repair.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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2. The air filter may be clogged.
Replace if necessary.
3. The spark plug may be faulty.
Replace if necessary.
CAUTION
RANGER 9 RANGER 9
F-13 F-13
TROUBLESHOOTING & REPAIR
Observe Safety Guidelines TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The welding arc is “ cold.” The engine runs normally (3700 RPM no load). The auxiliary power is functioning normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
WELDING PROBLEMS
1. Check for loose or faulty connections at the weld output terminals and welding cable connections.
2. The welding cable may be too
long or coiled, causing an
excessive voltage drop.
RECOMMENDED
COURSE OF ACTION
1. Check for the correct open circuit voltage (OCV) at the welding output terminals, 80VAC
Max. 75VDC Max. If the correct voltage is present at the
output terminals, then check for
loose connections on the heavy
current carrying leads inside the
RANGER 9. See Wiring
Diagram.
2. If the OCV is low at the welder
output terminals, then perform
the Engine Throttle Adjust-
ment Test.
3. Perform the Output Bridge
Test.
4. Check for shorted or grounded
windings in the reactor and also
in the main stator. See Wiring
Diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-14 F-14
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Output control on welder not functioning.
Remote output control not functioning.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the REMOTE switch
(S4) is in the MACHINE CONTROL position.
2. The Output Control (R3) may be
defective.
1. Make sure the REMOTE switch
(S4) is in the REMOTE position.
2. The remote control unit may be
defective. Repair or replace.
RECOMMENDED
COURSE OF ACTION
1. Check the Output Control (R3).
Normal resistance is 10,000
ohms. Replace if defective.
2. Check the REMOTE switch (S4)
and associated wiring. See
Wiring Diagram (Leads 75, 76,
and 77).
3. The Printed Circuit board may
be faulty. Replace.
1. Check the REMOTE switch (S4)
and associated wiring. See
Wiring Diagram (Leads #75, 76
and 77).
2. The bypass PC board may be
faulty. Check or replace.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-15 F-15
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The wire feeder does not work when connected to the welder amphenol.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Check circuit breaker CB1.
Reset is tripped.
2. The wire feeder control cable
may be faulty. Check or
replace.
3. The wire feeder may be faulty.
Check or replace.
RECOMMENDED
COURSE OF ACTION
1. Check for the presence of
115VAC at leads #31A and 32.
See Wiring Diagram.
2. Check for the presence of
42VAC at leads 31B to 42. See
Wiring Diagram.
3. If any of the above voltages are
missing or low, then check the
circuit breaker CB1 for proper
operation.
4. The bypass PC board may be
defective. Check or replace.
5. Perform the Auxiliary and Field
Winding Test.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-16 F-16
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The contactor does not pull in when scratch starting when the engine goes to high idle.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the WELDING TERMINALS switch (S6) is in the
“ALWAYS ON” position.
RECOMMENDED
COURSE OF ACTION
1. Check the WELDING TERMINAL switch (S6) and associated
wiring.
2. Check for the presence of
12VDC from lead #224 (+) to
lead #232 (-) at the output contactor. If the correct voltage IS
present and the contactor does
not activate, then the contactor
may be defective. Replace.
3. If the correct voltage is NOT
present in step #2, check from
lead #224 to ground (lead #5)
for the presence of 12VDC. If
the 12VDC is present, then
check lead #232A to the Idler
printed circuit board.
4. The printed circuit board may
be faulty. Replace.
CAUTION
5. If 12VDC is NOT present from
lead #224 to ground (lead #5),
then check the #224 lead for an
open circuit. See Wiring
Diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
F-17 F-17
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The output contactor does not pull in when using a wire feeder with a control cable connected to the RANGER 9 amphenol.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the WELDING TERMINALS switch (S6) is in the
“REMOTELY CONTROLLED”
position.
2. Install a jumper wire from pins
“D” to “C” on the 14 pin amphenol. If the output contactor activates, the problem is external to
the RANGER 9. The wire feeder or the control cable may be
faulty.
RECOMMENDED
COURSE OF ACTION
1. With the jumper installed in pins
“D” and “C” in the 14 pin
amphenol, check for 12VDC
from leads #224 (+) to #232 (-)
at the output contactor. If
12VDC is present and the contactor does not activate, then
the contactor may be defective.
2. If the correct voltage is NOT
present in step #2, check from
lead #224 to ground (lead #5)
for the presence of 12VDC. If
12VDC is present, then check
the continuity of the lead #232A
to the idler printed circuit board.
3. The printed circuit board may
be faulty. Replace.
4. If 12VDC is NOT present from
lead #224 to ground (lead #5),
then check the #224 lead for an
open circuit. See Wiring
Diagram.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-18 F-18
TROUBLESHOOTING & REPAIR
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The output contactor does NOT drop out.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Make sure the WELDING TERMINALS switch (S6) is in the
“REMOTELY CONTROLLED”
position.
2. Remove the wire feeder control
cable from the amphenol. If the
contactor “drops out,” then the
problem is external to the
RANGER 9. Check the control
cable or the wire feeder.
RECOMMENDED
COURSE OF ACTION
1. Remove lead #232 from the
output contactor. If the contactor “drops out,” then make sure
that lead #232 is NOT grounded. Also check the WELDING
TERMINALS switch (S6) for
proper operation. Check associated wiring. See Wiring
Diagram. The printed circuit
board may be faulty. Replace.
2. If in step #1 the contactor does
NOT drop out, then the contactor may be stuck. Repair or
replace.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
216-383-2531 or 1-800-833-9353.
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RANGER 9 RANGER 9
CAUTION
F-19 F-19
TROUBLESHOOTING & REPAIR
ROTOR VOLTAGE TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the correct DC voltage is being applied to the rotor at maximum
engine speed (3700 RPM). This information will aid the technician in determining if the generator field is operating properly.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
Wiring Diagram
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RANGER 9 RANGER 9
F-20 F-20
TROUBLESHOOTING & REPAIR
ROTOR VOLTAGE TEST (continued)
FIGURE F.1 - LOCATION OF LEAD 200A AND 219 FOR ROTOR VOLTAGE TEST
– +
Lead #200A
TEST PROCEDURE
1. With the 5/16” nut driver, remove the 6
sheet metal screws from the case top.
2. Remove the rubber gasket (cover seal)
from the lift bale.
3. Remove the fuel cap. The rubber gasket
for the fill tube will come off with the case
top.
4. Remove the case top, then reinstall the
fuel cap.
5. With the 5/16” nut driver, remove the 5
screws holding the right case side.
6. Remove the right case side by lifting up
and out.
Lead #219A
9. Connect the negative meter probe to the
other brush (lead #219).
10. Start the engine and run it at high idle
(3700 RPM). Set the output control to the
MAXIMUM position (position 10).
11. Check the voltage reading on the voltmeter. It should read between 40 and 50
VDC.
12. If the voltage reading is low or not present, the generator field is not functioning
properly. Perform the Rotor Resistance
Test. The Field Diode Bridge (D2), the
Field Capacitor (C1), and/or the Printed
Circuit Board may be faulty.
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RANGER 9 RANGER 9
7. Set the volt/ohmmeter to the DC volts
position.
8. Connect the positive meter probe to the
brush nearest the rotor lamination (lead
#200A). See Figure F.1 for location.
13. If the voltage reading is normal, the field
circuit is functioning properly. Install the
right case side with the 5 sheet metal
screws with the 5/16” nut driver. Remove
the fuel cap; install the case top and tighten the 6 sheet metal screws with the
5/16” nut driver. Install the rubber gasket
over the lift bale and install the fuel cap.
F-21 F-21
TROUBLESHOOTING & REPAIR
ROTOR RESISTANCE TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if there is a shorted winding in the rotor or if the rotor is grounded.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
Wiring Diagram
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RANGER 9 RANGER 9
F-22 F-22
TROUBLESHOOTING & REPAIR
ROTOR RESISTANCE TEST (continued)
FIGURE F.2 – LOCATION OF ROTOR SLIP RINGS
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Lead #200A
TEST PROCEDURE
1. With the 5/16” nut driver, remove the 6
sheet metal screws from the case top.
2. Remove the rubber gasket (cover seal)
from the lift bale.
3. Remove the fuel cap. The rubber gasket
for the fill tube will come off with the case
top.
4. Remove the case top, then replace the
fuel cap.
5. With the 5/16” nut driver, remove the 5
screws holding the right case side.
6. Remove the right case side by lifting up
and out.
7. Conduct the test with the gasoline engine
OFF.
8. Remove the spark plug wires to prevent
accidental engine kickback or starting.
Lead #219A
9. Isolate the rotor electrically by removing
the generator brush leads. Refer to
Figure F.2 as you perform the remaining
steps.
10. Remove lead #219 from the negative
brush.
11. Remove lead #200A from the positive
brush.
12. Measure the resistance across the rotor
slip rings.
A. Set the ohmmeter on the low scale
(X1).
B. Place one meter probe on one of the
rotor slip rings. Place the other probe
on the other slip ring.
C. Check the resistance across the slip
rings. It should read between 7 and 8
ohms.
RANGER 9 RANGER 9
F-23 F-23
TROUBLESHOOTING & REPAIR
13. Measure the resistance to ground.
A. Set the ohmmeter on the high scale
(X100,000).
B. Place one probe on either of the slip
rings. Place the other probe on any
good, unpainted ground. The
machine ground stud works well.
C. Check the resistance. It should r ead
very high, at least 0.5 megohm
(500,000 ohms).
If the test does not meet the resistance
specifications, then the rotor may be
faulty. Replace the rotor.
If the test does meet the resistance
specifications, then the rotor is okay.
14. Connect lead #200A to the positive
brush, which is the one nearest the rotor
lamination. Connect lead #219 to the
negative brush.
15. Reinstall the case side, case top, fuel
cap, lift bale gasket and spark plug
wires.
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RANGER 9 RANGER 9
F-24 F-24
TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the correct AC voltages are being generated from the stator
windings.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
Wiring Diagram
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RANGER 9 RANGER 9
F-25 F-25
TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST (continued)
FIGURE F.3 – LOCATION OF LEADS #3 AND #5
Machine
115V
Receptacle
Lead #3
Case
Front
Lead #5
TEST PROCEDURE
To test the 115 VAC winding:
1. Remove the fuel cap and lift bale rubber
gasket. With the 5/16” nut driver, remove
the case top and left side; then reinstall the
fuel cap.
2. Connect the volt/ohmmeter probes to
leads #3 and #5 where they connect to the
115 VAC receptacle. See Figure F.3.
3. Start the engine and run it at high idle (3700
RPM).
4. Set the output control to the maximum
position (position 10).
5. Check the AC voltage reading. It should be
approximately 125 VAC.
To test the 230 VAC winding:
1. Remove the fuel cap and lift bale rubber
gasket. With the 5/16” nut driver, remove
the case top and left side; then reinstall
the fuel cap.
2. Connect the volt/ohmmeter probes to
leads #6 and #3 where they connect to the
230 VAC receptacle.
NOTE: It is easier to insert the probes directly into the receptacle to perform this test.
However, the probes may not reach in far
enough to make or keep a good connection.
In this case, before you start the gasoline
engine, insert two test probes into the receptacle. Hold the test probes firmly in place to
measure voltage (Step 5).
3. Start the engine and run it at high idle (3700
RPM)
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RANGER 9 RANGER 9
4. Set the output control to the maximum
position (position 10).
5. Check the AC voltage reading. It should be
approximately 240 VAC.
F-26 F-26
TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST (continued)
FIGURE F.4 - LOCATION OF LEADS #7 AND #9 AT FIELD BRIDGE RECTIFIER
201
201A
7
_
9
AC
Bridge
Rectifier
Retaining
Cable Tie
To test the field winding:
201
201A
9
Field
Tab
Capacitor
AC
200
200A
200B
+
7
200
200A
200B
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1. Remove the fuel cap and lift bale rubber
gasket. With the 5/16” nut driver, remove
the case top and left side; then reinstall
the fuel cap.
2. Connect the volt/ohmmeter probes to leads
#7 and #9 where they connect to the Field
Bridge Rectifier. See Figure F.4.
3. Start the engine and run it at high idle (3700
RPM).
4. Set the output control to the maximum
position (position 10).
5. Check the AC voltage reading. It should be
between 40 and 50 VAC.
If any one or more of the readings are missing
or not within specifications, then check for
loose or broken wires between the test points
and the stator windings. See the Wiring
Diagram. Make sure the windings are NOT
grounded internally to the stator iron. If the
leads are intact, then the stator may be faulty.
Replace the stator.
If the voltage readings are within specifications, then the windings are good and functioning properly.
6. Reinstall the case side, case top, fuel cap,
and lift bale gasket.
RANGER 9 RANGER 9
F-27 F-27
TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST (continued)
FIGURE F.4A - 14 PIN AMPHENOL PIN ASSIGNMENTS
C
Y
D
E
M
B
L
Z
K
A
J
N
F
G
X
H
To test the feeder winding:
1. Remove the fuel cap and lift bail rubber
gasket. With the 5/16” nut driver, remove
the case top and left side; then reinstall the
fuel cap.
2. Connect the volt/ohmmeter probes to leads
#31 and #32 where they connect to the circuit breaker CB1 and the 14 pin amphenol.
See the Wiring Diagram.
NOTE: It is possible to check this voltage
reading at the amphenol by inserting
the test probes at pin A (for lead #32)
and J (for lead #31A). See Figure 4A.
However, if you use this method and
get no voltage reading, it could mean
there is a break or loose connection in
the leads between the circuit breaker
and the amphenol. Check the reading
again with one probe at the circuit
breaker connection for lead #31 and
the other probe at amphenol pin A.
3. Start the engine and run it at high idle (3700
RPM).
W
I
4. Set the output control to the maximum
(position 10).
5. Check the AC voltage reading. It should be
between 115 and 126 VAC.
6. Connect the volt/ohmmeter probes to leads
#31 and #42 where they connect to the cirbuit breaker CB1 and the 14 pin amphenol.
See the Wiring Diagram.
NOTE: It is possible to check this voltage
reading at the amphenol by inserting
the test probes at pin K (for lead #42)
and I (for lead #31B). See Figure 4A.
However, if you use this method and
get no voltage reading, it could mean
there is a break or loose connection in
the leads between the circuit breaker
and the amphenol. Check the reading
again with one probe at the circuit
breaker connection for lead #31 and
the other probe at amphenol pin K.
7. Set the output control to the maximum
position (position 10).
8. Check the AC voltage reading. It should be
between 43 and 50 VAC.
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RANGER 9 RANGER 9
F-28 F-28
TROUBLESHOOTING & REPAIR
AUXILIARY AND FIELD WINDING TEST (continued)
If the voltage readings are within specifications, then the windings are good and functioning correctly.
If any one or more of the readings are missing
or not within specifications, then check for
loose or broken wires between the test points
and the stator windings. See the Wiring
Diagram. Make sure that the windings are NOT
grounded internally to the stator iron. If the
leads are intact, then the stator may be faulty.
Replace the stator.
9. Reinstall the left case side, case top, fuel
cap, and lift bail gasket.
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RANGER 9 RANGER 9
F-29 F-29
TROUBLESHOOTING & REPAIR
OUTPUT RECTIFIER BRIDGE TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if there are faulty diodes in the Output Rectifier Bridge.
MATERIALS NEEDED
Volt/Ohmmeter (Diode Tester)
5/16” Nut driver
1/2” Socket wrench
Wiring Diagram
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RANGER 9 RANGER 9
F-30 F-30
TROUBLESHOOTING & REPAIR
OUTPUT RECTIFIER BRIDGE TEST (continued)
FIGURE F.5 – LOCATION OF OUTPUT RECTIFIER LEADS
Pigtail
+
Diode
Output rectifier
Bridge Assembly
TEST PROCEDURE
Ohmmeter Probes
-
Machine Front
1. Remove the spark plug wires to prevent
accidental engine kickback or starting.
2. WIth the 5/16” nut driver, remove the 6
sheet metal screws from the case top.
3. Remove the rubber gasket (cover seal) from
the lift bale.
4. Remove the fuel cap. The rubber gasket for
the fill tube will come off with the case top.
5. Remove the case top, then replace the
fuel cap.
6. With the 5/16” nut driver, remove the 5
screws holding the right case side.
7. Remove the right case side by lifting up and
out.
8. Conduct the test with the gasoline engine
OFF.
9. Locate the Output Rectifier Bridge behind
the machine case front.
10. With the 1/2” socket wrench, remove the
nuts and washers holding the diode bridge
pigtails and the heavy current-carrying
leads to the studs located in the middle of
the rectifier assembly. Note their locations
and the order of fasteners for reassembly.
11. Electrically isolate the diode pigtails by
bending them back into “free air.”
12. With an ohmmeter or diode tester, check
each of the four diodes from their pigtails
to their respective heat sinks. See Figure
F.5.
13. Reverse the tester leads and check the
diodes again. Diodes should have a low
resistance in one polarity and a very high
resistance in the opposite polarity.
14. Replace any “shorted” or “open” diode as
the tests indicate.
15. Reconnect the diode pigtails and heavy
leads to their respective studs.
16. Reinstall the case side, case top, fuel cap,
lift bale gasket and spark plug wires.
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RANGER 9 RANGER 9
F-31 F-31
TROUBLESHOOTING & REPAIR
CHARGING CIRCUIT TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
This test will determine if the Flywheel Alternator, Regulator, and associated circuitry are
functioning properly.
MATERIALS NEEDED
Volt/Ohmmeter
5/16” Nut driver
Wiring Diagram
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RANGER 9 RANGER 9
F-32 F-32
TROUBLESHOOTING & REPAIR
CHARGING CIRCUIT TEST (continued)
FIGURE F.6 – LOCATION OF VOLTAGE REGULATOR
Voltage Regulator
AC Lead
DC Lead
AC Lead
Engine Cooling
Shroud
TEST PROCEDURE
1. Start the engine and run it at high idle
(3700 RPM).
2. Set the voltmeter for AC volts and place
one meter probe on each of the two outside leads that attach to the engine voltage
regulator. See FIgure F.6 for location.
Check for 52 VAC at the voltage regulator.
3. If the AC voltage is low or not present, the
engine flywheel alternator may be faulty.
This is an engine problem; consult your
local engine repair facility.
4. If the voltage reading is correct, then check
the output of the voltage regulator to determine the charging voltage for the battery.
Run the engine at high idle (3700 RPM).
Set the voltmeter for DC volts and place
one meter probe on any good ground. See
Figure F.6. Check for 13-15 VDC.
5. If the DC voltage reading is incorrect or not
present, the voltage regulator may be
faulty. Replace the entire voltage regulator
module.
6. If the DC voltage reading is correct, check
the associated wiring and circuitry. See
the Wiring Diagram.
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RANGER 9 RANGER 9
F-33 F-33
TROUBLESHOOTING & REPAIR
ENGINE THROTTLE ADJUSTMENT TEST
WARNING
Service and repair should be performed by only Lincoln Electric factory trained personnel.
Unauthorized repairs performed on this equipment may result in danger to the technician or
machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
If for any reason you do not understand the test procedures or are unable to perform the
test/repairs safely, contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353 (WELD).
TEST DESCRIPTION
If the machine output is low, this test will determine whether the gasoline engine is operating
at the correct speed (RPM) during both HIGH and LOW idle conditions. Directions for adjusting the throttle to the correct RPM are given.
MATERIALS NEEDED
5/16” Nut driver
3/8” open end or box wrench
Strobe-tach, frequency counter, oscilloscope, or vibratach
Black or red marking pencil
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RANGER 9 RANGER 9
F-34 F-34
TROUBLESHOOTING & REPAIR
ENGINE THROTTLE ADJUSTMENT TEST (continued)
FIGURE F.7 – BLOWER PADDLE MARKED FOR STROBE-TACH METHOD
Blower Paddle
TEST PROCEDURE
This test can be conducted by any one of four
methods.
Strobe-tach Method:
1. With the 5/16” nut driver, remove the 6
sheet metal screws from the case top.
2. Remove the rubber gasket (cover seal) from
the lift bale.
3. Remove the fuel cap. The rubber gasket for
the fill tube will come off with the case top.
4. Remove the case top, then replace the
fuel cap.
5. Conduct this procedure with the gasoline
engine OFF.
6. Remove the spark plug wires to prevent
accidental engine kickback or starting.
8. Connect the strobe-tach according the
manufacturer’s instructions.
9. Reconnect the spark plug wires and start
the engine. Direct the strobe-tach light on
the blower paddle and synchronize it to
the rotating mark.
10. With the machine at HIGH IDLE the tach
should read between 3700 and 3750 RPM.
With the machine at LOW IDLE the tach
should read between 2150 and 2250 RPM.
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RANGER 9 RANGER 9
7. With the black or red marking pencil, place
a mark on one of the blower paddles. See
Figure F.7 for location.
F-35 F-35
TROUBLESHOOTING & REPAIR
ENGINE THROTTLE ADJUSTMENT TEST (continued)
FIGURE F.8
HIGH IDLE ADJUSTMENT NUT
Throttle Linkage
3/8" High Idle
Adjustment Nut
Choke Cable
11. If either of the readings is incorrect, adjust
the throttle as follows:
Adjust HIGH IDLE: Use the 3/8” wrench to
turn the spring-loaded adjustment nut.
See Figure F.8 for location of the adjustment nut. Turn the nut clockwise to
increase HIGH IDLE speed. Adjust the
speed until the tach reads between 3700
and 3750 RPM.
FIGURE F.9
LOW IDLE ADJUSTMENT NUT
3/8" Low Idle
Adjustment Nut
Solenoid
Housing
Muffler
Rod
2. Start the engine and check the frequency
counter. At HIGH IDLE (3700 RPM), the
counter should read 63 Hz. At LOW IDLE
(2200 RPM), the counter should read 37
Hz. Note that these are median measurements; hertz readings may vary slightly
above or below.
3. If either of the readings is incorrect, adjust
the throttle as follows:
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RANGER 9 RANGER 9
Adjust LOW IDLE: First make sure there is
no load on the machine. Set the IDLE
switch to AUTO and wait for the engine to
change to low idle speed. Use the 3/8”
wrench to adjust the solenoid nut, which
changes the amount of throw in the throttle
lever arm. See Figure F.9 for location of the
adjustment nut. Adjust the nut until the
tach reads between 2150 and 2250 RPM.
Frequency Counter Method
1. Plug the frequency counter into one of the
115 VAC auxiliary receptacles.
Adjust HIGH IDLE: Use the 3/8” wrench to
turn the spring-loaded adjustment nut.
See Figure F.8 for location of the adjustment nut. Turn the nut clockwise to increase HIGH IDLE speed. Adjust the
speed until the frequency reads 63 Hz.
Adjust LOW IDLE: First make sure there is
no load on the machine. Set the IDLER
switch to AUTO and wait for the engine to
change to low idle speed. Use the 3/8”
wrench to adjust the solenoid nut, which
changes the amount of throw in the throttle
lever arm. See Figure F.9 for location of the
adjustment nut. Adjust the nut until the frequency reads 37 Hz.
F-36 F-36
TROUBLESHOOTING & REPAIR
ENGINE THROTTLE ADJUSTMENT TEST (continued)
Oscilloscope Method:
1. Connect the oscilloscope to the 115 VAC
receptacle, according to the manufacturer’s instructions. At 3700 RPM, the waveform should exhibit a period of 15.8 milliseconds. At 2200 RPM, the waveform
should exhibit a period of 27.02 milliseconds. Refer to NORMAL OPEN CIRCUIT
VOLTAGE WAVEFORM (115 VAC SUPPLY)
HIGH IDLE – NO LOAD in this section of
the manual.
2. If either waveform periods is incorrect,
adjust the throttle as follows:
Adjust HIGH IDLE: Use the 3/8” wrench to
turn the spring-loaded adjustment nut.
See Figure F.8 for location of the adjustment nut. Adjust the speed until the period
is 15.8 mililseconds.
Adjust LOW IDLE: First make sure there is
no load on the machine. Set the IDLER
switch to AUTO and wait for the engine to
change to low idle speed. Use the 3/8”
wrench to adjust the solenoid nut, which
changes the amount of throw in the throttle
lever arm. See Figure F.9 for location of the
adjustment nut. Adjust the speed until the
period is 27.02 milliseconds.
Vibratach Method:
1. Place the vibratach as close to the engine
as possible. With the machine case top
removed, the top of the air cleaner is the
best location.
2. Start the engine and observe the whip
handle of the vibratach. At HIGH IDLE
(3700 RPM), the whip handle should
exhibit maximum oscillation. At LOW IDLE
(2200 RPM), the whip handle should
exhibit minimum oscillation. Note that
these are median measurements; vibratach readings may vary slightly above or
below.
3. If either of the vibratach indications is
incorrect, adjust the throttle as follows:
Adjust HIGH IDLE: Use the 3/8” wrench to
turn the spring-loaded adjustment nut.
See Figure F.8 for location of the adjustment nut. Turn the nut clockwise to
increase HIGH IDLE speed. Adjust the
speed until the vibratach whip handle
exhibits maximum oscillation at 3700 RPM.
Adjust LOW IDLE: First make sure that
there is no load on the machine. Set the
IDLER switch to AUTO and wait for the
engine to change to low idle speed. Use
the 3/8” wrench to adjust the solenoid nut,
which changes the amount of throw in the
throttle lever arm. See Figure F.9 for location of the adjustment nut. Adjust the
speed until the vibratach whip handle
exhibits minimum oscillation at 2150 to
2250 RPM.
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RANGER 9 RANGER 9
F-37 F-37
TROUBLESHOOTING & REPAIR
NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM (115VAC SUPPLY)
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
15.8 ms
CH1
0 volts
50 volts
This is the typical auxiliary output
voltage generated from a properly
operating machine. Note that each
vertical division represents 50 volts
and that each horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at
machine 115VAC receptacle.
5 ms
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-38 F-38
TROUBLESHOOTING & REPAIR
TYPICAL DC WELD OUTPUT VOLTAGE WAVEFORM (CV MODE HIGH TAP)
MACHINE LOADED
CH1
0 volts
20 volts
5 ms
MACHINE LOADED TO 250 AMPS AT 25VDC
This is the typical CV output voltage
generated from a properly operating
machine. Note that each vertical
division represents 20 volts and that
each horizontal division represents 5
milliseconds in time. The machine
was loaded with a resistance grid
bank.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-39 F-39
TROUBLESHOOTING & REPAIR
TYPICAL DC WELD OUTPUT VOLTAGE WAVEFORM
MACHINE LOADED
CH1
0 volts
20 volts
MACHINE LOADED TO 250 AMPS AT 25 VDC
This is the typical DC output voltage
generated from a properly operating
machine. Note that each vertical
division represents 20 volts and that
each horizontal division represents 5
milliseconds in time. The machine
was loaded with a resistance grid
bank.
Note: Scope probes connected at
machine output terminals.
5 ms
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-40 F-40
TROUBLESHOOTING & REPAIR
TYPICAL AC WELD OUTPUT VOLTAGE WAVEFORM
MACHINE LOADED
CH1
0 volts
20 volts
5 ms
MACHINE LOADED TO 250 AMPS AT 25VDC
This is the typical AC output voltage
generated from a properly operating
machine. Note that each vertical
division represents 20 volts and that
each horizontal division represents 5
milliseconds in time. The machine
was loaded with a resistance grid
bank.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-41 F-41
TROUBLESHOOTING & REPAIR
ABNORMAL OPEN CIRCUIT DC WELD VOLTAGE WAVEFORM
HIGH IDLE - NO LOAD - OUTPUT CONTROL AT MAXIMUM
ONE OUTPUT DIODE NOT FUNCTIONING
CH1
0 volts
50 volts
This is NOT the typical DC (+) output
voltage waveform. One output diode
is not functioning. Note the “gap” in
the waveform. One output diode was
disconnected to simulate an open or
non-functioning output diode. Each
vertical division represents 50 volts
and each horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at
machine output terminals.
5 ms
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-42 F-42
TROUBLESHOOTING & REPAIR
ABNORMAL OPEN CIRCUIT WELD VOLTAGE WAVEFORM
(HIGH CV MODE)
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
OUTPUT CAPACITOR BANK NOT FUNCTIONING
CH1
0 volts
50 volts
This is NOT the typical CV output
voltage waveform. The capacitor
bank is not functioning. Note the
“ripple” in the waveform. The capacitor bank was disconnected to simulate an open or non-functioning
capacitor bank. Each vertical division represents 50 volts and each
horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at
machine output terminals.
5 ms
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
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RANGER 9 RANGER 9
F-43 F-43
TROUBLESHOOTING & REPAIR
NORMAL OPEN CIRCUIT WELD VOLTAGE WAVEFORM (HIGH CV MODE)
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
CH1
0 volts
20 volts
This is the typical CV output voltage
generated from a properly operating
machine. Note that each vertical
division represents 20 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
5 ms
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RANGER 9 RANGER 9
F-44 F-44
TROUBLESHOOTING & REPAIR
NORMAL OPEN CIRCUIT DC WELD VOLTAGE WAVEFORM
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
CH1
0 volts
50V
This is the typical DC output voltage
generated from a properly operating
machine. Note that each vertical
division represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
5 ms
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RANGER 9 RANGER 9
F-45 F-45
TROUBLESHOOTING & REPAIR
NORMAL OPEN CIRCUIT AC WELD VOLTAGE WAVEFORM
HIGH IDLE – NO LOAD – OUTPUT CONTROL AT MAXIMUM
CH1
0 volts
50 volts
This is the typical AC output voltage
generated from a properly operating
machine. Note that each vertical
division represents 50 volts and that
each horizontal division represents 5
milliseconds in time.
Note: Scope probes connected at
machine output terminals.
SCOPE SETTINGS
Volts/Div.....................50V/Div.
Horizontal Sweep.....5 ms/Div.
Coupling ............................DC
Trigger .........................Internal
5 ms
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RANGER 9 RANGER 9
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