Lincoln Electric SVM145-B User Manual

SVM145-B
September, 2002
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.
SERVICE MANUAL
For use with machines having Code Numbers: 10469 (Standard),
10470 (Deluxe)
Commander 300
TM
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• Sales and Service through Subsidiaries and Distributors Worldwide •
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
• World's Leader in Welding and Cutting Products •
Copyright © 2002 Lincoln Global Inc.

SAFETY

i i
COMMANDER 300
FOR ENGINE powered equipment.
1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running.
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1.b.Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.
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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.
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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.
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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.
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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.
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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.
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 Welding 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.
WARNING
Mar ‘95
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.
1.h. To avoid scalding, do not remove the radiator pressure cap when the engine is hot.
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 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 Diesel Engines
The Above For Gasoline Engines
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SAFETY
ii ii
COMMANDER 300
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.
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.
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
vapors coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors
to 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.
5.e. Also see item 1.b.
Mar ‘95
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COMMANDER 300
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.
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, VA22202.
iii
SAFETY
iii
Mar ‘95
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.
Remember that welding sparks and hot 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
though
they have been “cleaned”. For information, purchase “Recommended Safe Practices for the
Preparation
for Welding and Cutting of 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.
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SAFETY
iv iv
COMMANDER 300
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.
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
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.
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
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MASTER TABLE OF CONTENTS FOR ALL SECTIONS
v v
COMMANDER 300
Page
Safety.................................................................................................................................................i-iv
Installation.............................................................................................................................Section A
Technical Specifications..............................................................................................................A-2
Safety Precautions......................................................................................................................A-3
Location and Ventilation..............................................................................................................A-3
Pre-Operation Engine Service ....................................................................................................A-4
Electrical Output Connections.....................................................................................................A-6
Operation...............................................................................................................................Section B
Safety Instructions.......................................................................................................................B-2
General Description ....................................................................................................................B-3
Recommended Applications........................................................................................................B-3
Design Features ..........................................................................................................................B-3
Welding Capability ......................................................................................................................B-4
Controls and Settings..................................................................................................................B-4
Engine Operation........................................................................................................................B-8
Welder Operation........................................................................................................................B-9
Auxiliary Power Operation .........................................................................................................B-11
Accessories ..........................................................................................................................Section C
Maintenance..........................................................................................................................Section D
Theory of Operation .............................................................................................................Section E
Troubleshooting and Repair ................................................................................................Section F
Electrical Diagrams..............................................................................................................Section G
Parts Manual .................................................................................................................................P334
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TABLE OF CONTENTS
- INSTALLATION SECTION -
Section A-1 Section A-1
COMMANDER 300
Installation .............................................................................................................................Section A
Technical Specifications..............................................................................................................A-2
Input - Diesel Engine............................................................................................................A-2
Rated Output - Welder..........................................................................................................A-2
Output - Welder and Generator ............................................................................................A-2
Physical Dimensions.............................................................................................................A-2
Safety Precautions......................................................................................................................A-3
Location and Ventilation..............................................................................................................A-3
Storing ..................................................................................................................................A-3
Stacking................................................................................................................................A-3
Angle of Operation................................................................................................................A-3
Lifting....................................................................................................................................A-4
High Altitude Operation.........................................................................................................A-4
Towing...................................................................................................................................A-4
Pre-Operation Engine Service ....................................................................................................A-4
Oil .........................................................................................................................................A-5
Fuel.......................................................................................................................................A-5
Cooling System.....................................................................................................................A-5
Battery Connections .............................................................................................................A-5
Muffler Outlet Pipe ............................................................................................................ ....A-5
Spark Arrester.......................................................................................................................A-5
High Frequency Generation for TIG Applications .......................................................................A-6
Remote Control...........................................................................................................................A-6
Welding Terminals.......................................................................................................................A-6
Electrical Output Connections.....................................................................................................A-6
Welding Cable Connections.................................................................................................A-7
Cable Installation, Polarity Control, and Cable Sizes.....................................................A-7
Machine Grounding ..............................................................................................................A-8
Auxiliary Power Receptacles................................................................................................A-8
Standby Power Connections................................................................................................A-8
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INSTALLATION
A-2 A-2
COMMANDER 300
TECHNICAL SPECIFICATIONS - Commander 300
INPUT - DIESEL ENGINE
Make/Model Description
Speed (RPM)
Displacement Starting Capacities
System
Deutz 3 cylinder 1800 Full Load 125 cu. in. Electric Fuel: 25 gal.
F3L 1011F Air/cooled 1900 High Idle (2.05 liters) 12 VDC (94.6 liters)
diesel 1400 Low Idle 31 HP Oil: 6.3 qt. @ 1800 RPM (6.0 liters)
RATED OUTPUT - WELDER
Duty Cycle Welding Output Volts at Rated Amps
100% 300 amps (DC Multi-purpose) 32 volts
60% 375 amps (DC Multi-purpose) 34 volts
OUTPUT - WELDER AND GENERATOR
Welding Range Max. Open Circuit Voltage Auxiliary Power
1
30 - 300 Amps DC 87 OCV 120/240 VAC in 5 Ranges @ 1900 RPM 10,000 Watts, 60 Hz.
100% Duty Cycle
PHYSICAL DIMENSIONS
Height
2
Width Depth Weight
42.0 in. 31.5 in. 63.1 in. 1325 lbs.
1066.8 mm 800.1 mm 1602.7 mm 1683 lbs.(601 kg)
1
Output rating in watts is equivalent to volt-amperes at unity power factor. Output voltage is within +/- 10% at all loads up to rated capacity. When welding, available auxiliary power will be reduced.
2
Top of Enclosure. Add 8.9” (16mm) for exhaust.
Read this entire installation section before you start installation.
SAFETY PRECAUTIONS
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 such as output terminals or internal wiring.
• Insulate yourself from the work and ground.
• Always wear dry insulating gloves.
ENGINE EXHAUST can kill.
• Use in open, well ventilated areas or vent exhaust outside.
• Do not stack anything near the engine.
MOVING PARTS can injure.
• Do not operate with doors open or guards off.
• Stop the engine before servicing.
• Keep away from moving parts.
See additional safety information at the front of this manual.
Only qualified personnel should install, use, or ser­vice this equipment.
LOCATION AND VENTILATION
The welder should be located to provide an unrestrict­ed flow of clean, cool air. Also, locate the welder so that the engine exhaust fumes are properly vented to an outside area.
STORING
1. Store the machine in a cool, dry place when it is 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. Drain the engine oil and refill with fresh 10W30 oil. Run the engine for about five minutes to circulate oil to all the parts. See the Maintenance section of this manual for details on changing oil.
3. Remove the battery, recharge it, and adjust the electrolyte level. Store the battery in a dry, dark place.
4. See your engine operation manual for further infor­mation on fuel and engine preservation.
STACKING
Commander 300 machines CANNOT be stacked.
ANGLE OF OPERATION
To achieve optimum engine performance the Commander 300 should be run in a level position. The maximum angle of operation for the Deutz engine is 20 degrees in a direction to cause the control panel to be angled up, 30 degrees for side to side tilting and for the control panel to be angled down. If the engine is to be operated at an angle, provisions must be made for checking and maintaining the oil level at the normal (FULL) oil capacity in the crankcase. When operating the welder at an angle, the effective fuel capacity will be slightly less than the specified 25 gallons (94.6 liters).
INSTALLATION
A-3 A-3
COMMANDER 300
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WARNING
LIFTING
The Commander 300 weighs 1325 lb./601 kg. Alift bail is provided for lifting with a hoist.
FALLING EQUIPMENT can cause injury.
Do not lift this machine using lift bail if it is equipped with a heavy accessory such as a trailer.
Lift only with equipment of adequate lifting capacity . Be sure machine is sta­ble when lifting.
The Commander is shipped with the lift bail retracted. Before attempting to lift the Commander, secure the lift bail in a raised position. Secure the lift bail as follows:
a. Open the engine compartment door. b. Locate the two access holes on the upper middle
region of compartment wall just below the lift bail.
c. Use the lifting strap to raise the lift bail to the full
upright position. This will align the mounting holes on the lift bail with the access holes.
d. Secure the lift bail with two thread forming
screws. The screws are provided in the shipped loose parts bag.
HIGH ALTITUDE OPERATION
At higher altitudes, output derating may be necessary. For maximum rating, derate the welder output 5% for every 300 meters (984 ft.) above 1500 meters (4920 ft.). For output of 300A and below, derate the welder output 5% for every 300 meters (984 ft.) above 2100 meters (6888 ft.)
Contact a Deutz Service Representative for any engine adjustments that may be required.
TOWING
The recommended trailer for use with this equipment for road, in-plant and yard towing by a vehicle is Lincoln’s K953-1. If the user adapts a non-Lincoln trail­er, he must assume responsibility that the method of attachment and usage does not result in a safety haz­ard nor damage the welding equipment. Some of the factors to consider are as follows:
1. Design capacity of trailer vs. the weight of the Lincoln equipment and likely additional attach­ments.
2. Proper support of, and attachment to, the base of the welding equipment so that there will be no undue stress to the trailer’s framework.
3. Proper placement of the equipment on the trailer to insure stability side to side and front to back when the trailer is being moved and when standing by itself.
4. Typical conditions of use, such as travel speed, roughness of surface on which the trailer will be operated, environmental conditions, and likely maintenance.
5. Proper preventative maintenance of trailer.
6. Conformance with federal, state and local laws.
1
1
Consult applicable federal, state and local laws regarding specific requirements for use on public highways.
PRE-OPERATION ENGINE SERVICE
Read and understand the information about the diesel engine in the Operation and Maintenance sections of this manual before you operate the Commander 300.
• Keep hands away from the engine muf­fler or HOT engine parts.
• Stop the engine and allow it to cool before fueling.
• Do not smoke when fueling.
• Remove the fuel cap slowly to release pressure.
• Fill the fuel tank at a moderate rate and do not over­fill.
• Wipe up spilled fuel and allow the fumes to clear before starting the engine.
• Keep sparks and flame away from the fuel tank.
INSTALLATION
A-4 A-4
COMMANDER 300
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WARNING
WARNING
OIL
The Commander 300 is shipped with the engine crankcase filled with high quality SAE 1OW-30 oil (API class CD or better).
CHECK THE OIL LEVEL BEFORE YOU START THE ENGINE. If it is not up to the FULL mark on the dip-
stick, add oil as required. Check the oil every four hours of running time during the first 35 running hours. Refer to the engine operatorís manual for specific oil recommendations and break-in information. The oil change interval is dependent on the quality of the oil and the operating environment. Refer to the engine operatorís manual for the proper service and mainte­nance intervals.
For more oil fill and service information, see the Maintenance section of this manual.
FUEL
Use Diesel fuel only.
Fill the fuel tank with clean, fresh diesel fuel. The Commander 300 has 25 gallon (94.6 liter) fuel tank. See the engine operatorís manual for specific fuel recommendations. The Commander 300 Deluxe is protected by a low fuel shutdown to prevent the engine from running out of fuel. The machine will indicate a low fuel condition by turning on the low fuel light. Once the light comes on, the machine will have thirty minutes before it shuts down. The operator can override this feature by restarting the engine, which restarts the timer. The amount of reserve fuel remain­ing in the tank after the first shutdown will vary from machine to machine. The operator must determine the amount of fuel remaining before restarting the machine. Running out of fuel may require bleeding
the fuel injection pump. NOTE: Before starting the engine, open the fuel shut-
off valve. The pointer on the valve should be in line with the hose.
FUEL CAP
Remove the plastic cap covering from the fuel tank filler neck and install the fuel cap.
COOLING SYSTEM
The Deutz engine is air cooled by a belt-driven axial blower. The oil cooler and engine cooling fins should be blown out with compressed air or steam to maintain proper cooling. See the engine operator’s manual for procedures and frequency.
BATTERY CONNECTIONS
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.
The Commander 300 is shipped with the negative battery cable disconnected.
Before you operate the machine, make sure the IGNITION switch is in the OFF position and remove and discard the insulating cap from the negative bat­tery terminal. 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.
MUFFLER OUTLET PIPE
Remove the plastic plug covering the muffler outlet tube. Using the clamp provided, secure the outlet pipe to the outlet tube with the pipe positioned so that it will direct exhaust in the desired direction.
SPARK ARRESTER
Diesel 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.
Standard mufflers (like the one included with the Commander 300) 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 (K903-1) is available for your Commander 300. See the Accessories section of this manual for more information.
An incorrect spark arrester may lead to engine damage or may adversely affect performance.
INSTALLATION
A-5 A-5
COMMANDER 300
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CAUTION
WARNING
–+
HIGH FREQUENCY GENERATORS FOR TIG APPLICATIONS
The K799 Hi-Freq Unit and the K930-1 or –2 TIG Module can be used with the Commander 300. The machine is equipped with the required RF bypass cir­cuitry for the connection of high frequency generating equipment. The high frequency bypass network sup­plied with the K799 Hi-Freq Unit does NOT need to be installed into the Commander 300.
The Commander 300 and any high frequency generat­ing equipment must be properly grounded. See the K799 Hi-Freq Unit and the K930-1 or –2 TIG Module operating manuals for complete instructions on instal­lation, operation, and maintenance.
REMOTE CONTROL
The Commander 300 is equipped with a 6-pin and a 14-pin connector. The 6-pin connector is for connect­ing the K857 or K857-1 Remote Control (optional) or the K870 hand Amptrol or K812 foot Amptrol (TIG applications).
The 14-pin connector is used to connect a wire feeder or K930-1 or –2 TIG Module control cable. When remote output control is used, the output control tog­gle switch must be set at REMOTE.
NOTE: When using the 14-pin connector , do NOTcon­nect anything to the 6-pin connector if the wire feeder has a built-in power source output control.
Also see the Accessories section of this manual for more information on wire feeder connections.
WELDING TERMINALS
The Commander 300 has a toggle switch for selecting “hot” welding terminals (WELDING TERMINALS ALWAYS ON position) or “cold” welding terminals (WELDING TERMINALS REMOTELY CONTROLLED position).
ELECTRICAL OUTPUT CONNECTIONS
See Figure A.1 for the location of the 120 and 240 volt receptacles, weld output terminals, and ground stud.
INSTALLATION
A-6 A-6
COMMANDER 300
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FIGURE A.1 - Commander 300 OUTPUT CONNECTIONS
3
1
OIL
0
HOURS
FUEL
OIL
TEMP PRESS
2
4
00000
AMPS
1. 120 VOLT, 20 AMP RECEPTACLES (2)
2. 120/240 VOLT, 50 AMP RECEPTACLE
3. WELD OUTPUT TERMINALS
4. GROUND STUD
WELDING CABLE CONNECTIONS
CABLE INSTALLATION, POLARITY CONTROL, AND CABLE SIZES
With the engine off, route the electrode and work cables through the strain relief bracket on the base front and connect them to the terminals. (See size rec­ommendations below.) For positive polarity, connect the electrode cable to the terminal marked Positive (+). For Negative polarity, connect the electrode cable to the Negative (-) terminal. These connections should be checked periodically and tightened if necessary.
• Loose connections will cause the output terminals to overheat. The terminals may eventually melt.
• Do not cross the welding cables at the output terminal connection. Keep the cables isolated and separate from one another.
When welding at a considerable distance from the welder, be sure you use ample size welding cables. 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.
Lincoln Electric offers a welding accessory kit with prop­erly specified welding cables. See the Accessories section of this manual for more information.
INSTALLATION
A-7 A-7
COMMANDER 300
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CAUTION
TABLE A.1 - RECOMMENDED WELDING CABLE SIZE AND LENGTH
TOTAL COMBINED LENGTH OF ELECTRODE AND WORK CABLES
Amps @ 100%
Cable sizes for combined length of electrode
Duty Cycle
plus work cable
Up to 150 ft. 150 - 200 ft. 200 - 250 ft.
300 2/0 AWG 2/0 AWG 3/0 AWG
MACHINE GROUNDING
Because this portable engine-driven welder creates its own power, you do not need to connect the machine frame to an earth ground, unless the machine is con­nected to premises wiring (home, shop, etc.).
To prevent dangerous electric shock, other equipment powered by the Commander 300 must:
a) be grounded to the frame of the welder using a
grounded type plug,
or
b) be double insulated.
When the Commander 300 is mounted to a truck or trailer, its frame must be securely connected to the metal frame of the vehicle. When connected to premis­es wiring such as a home or shop, its frame must be connected to the system earth ground. See further connection instructions in the section titled Standby Power Connections as well as the article on grounding the latest U.S. National Electrical Code and the local code.
In general, if the machine is to be grounded, it should be connected with a #8 AWG or larger copper wire to a solid earth ground such as a metal water pipe going into the ground for at least ten feet and having no insu­lated joints, or to the metal framework of a building that has been effectively grounded. The U.S. National Electrical Code lists a number of alternate means of grounding electrical equipment. A machine grounding stud marked with the symbol is provided on the front of the welder.
AUXILIARY POWER RECEPTACLES
The auxiliary power capacity of the Commander 300 is 10,000 watts of 60 Hz, single phase power. The auxil­iary power capacity rating in watts is equivalent to volt­amperes at unity power factor. The maximum permis­sible current of the 240 VAC output is 44 A. The 240 VAC output can be split to provide two separate 120 VAC outputs with a maximum permissible current of 44A per output to two separate 120 VAC branch cir­cuits. The output voltage is within ±10% at all loads up to rated capacity.
NOTE: The 120/240V receptacle has two 120V outlets of different phases and cannot be paralleled.
The Commander 300 has two 15 Amp-120VAC (5­15R) duplex receptacles with GFCI protection and one 50 Amp-120/240 VAC (14-50R) receptacle. The 120/240 VAC receptacle can be split for single-phase 120 VAC operation. The auxiliary power receptacles should only be used with three-wire, grounded type plugs or approved double-insulated tools with two-wire plugs. The current rating of any plug used with the sys­tem must be at least equal to the current capacity of the associated receptacle.
STANDBY POWER CONNECTIONS
The Commander 300 is suitable for temporary, stand­by or emergency power using the engine manufactur­er's recommended maintenance schedule.
The Commander 300 can be permanently installed as a standby power unit for 240 volt, three-wire, 44 amp service. Connections must be made by a licensed electrician who can determine how the 120/240 VAC power can be adapted to the particular installation and comply with all applicable electrical codes. The follow­ing information can be used as a guide by the electri­cian for most applications. Refer to the connection dia­gram shown in Figure A.2.
1. Install the double-pole, double-throw switch between the power company meter and the premises discon­nect.
Switch rating must be the same as or greater than the customer's premises disconnect and service over cur­rent protection.
2. Take necessary steps to assure the load is limited to the capacity of the Commander 300 by installing a 45 amp, 240 VAC double-pole circuit breaker. Maximum rated load for each leg of the 240 VAC auxiliary is 45 amperes. Loading above the rated output will reduce output voltage below the allow­able ±10% of rated voltage, which may damage appliances or other motor-driven equipment and may result in overheating of the Commander 300 engine.
3. Install a 50 amp 120/240 VAC plug (NEMAType 14-
50) to the double-pole circuit breaker using No. 6, 4­conductor cable of the desired length. (The 50 amp, 120/240 V AC plug is available in the optional K802R plug kit.)
4. Plug this cable into the 50 Amp 120/240 Volt recep­tacle on the Commander 300 case front.
INSTALLATION
A-8 A-8
COMMANDER 300
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INSTALLATION
A-9 A-9
COMMANDER 300
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FIGURE A.2 - CONNECTION OF THE COMMANDER TO PREMISES WIRING
240 Volt
60 Hz. 3-Wire
Service
POWER
COMPANY
METER
240 VOLT
120 VOLT
120 VOLT
LOAD
N
NEUTRAL BUS
GROUND
PREMISES
DISCONNECT AND
SERVICE
OVERCURRENT
PROTECTION
GND
N
NOTE: No. 8 COPPER CONDUCTOR CABLE SEE
NATIONAL ELECTRICAL CODE FOR ALTERNATE WIRE
SIZE RECOMMENDATIONS.
240 VOLT
GROUNDED CONDUCTOR
45AMP
240 VOLT
DOUBLE
POLE
CIRCUIT
BREAKER
DOUBLE POLE DOUBLE THROW SWITCH RATING TO BE THE SAME
AS OR GREATER THAN PREMISES SERVICE OVERCURRENT PROTECTION.
50 AMP, 120/240
VOLT PLUG
NEMA TYPE 14-50
50 AMP, 120/240 VOLT
RECEPTACLE
NOTES
A-10 A-10
COMMANDER 300
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Section B-1 Section B-1
COMMANDER 300
TABLE OF CONTENTS
- OPERATION SECTION -
Operation...............................................................................................................................Section B
Operating Instructions.................................................................................................................B-2
Safety Instructions.......................................................................................................................B-2
General Description ....................................................................................................................B-3
Recommended Applications........................................................................................................B-3
Welder ..................................................................................................................................B-3
Generator..............................................................................................................................B-3
Design Features ..........................................................................................................................B-3
Welding Capability ......................................................................................................................B-4
Controls and Settings..................................................................................................................B-4
Engine Controls....................................................................................................................B-5
Welder Controls....................................................................................................................B-6
Auxiliary Power Controls ......................................................................................................B -7
Engine Operation........................................................................................................................B-8
Starting the Engine...............................................................................................................B-8
Cold Weather Starting..........................................................................................................B-8
Stopping the Engine.............................................................................................................B-8
Break-in Period.....................................................................................................................B-8
Typical Fuel Consumption....................................................................................................B-9
Welder Operation........................................................................................................................B-9
Stick Welding........................................................................................................................B-9
Pipe Welding ...................................................................................................................B-9
Constant Current (CC) Welding ......................................................................................B-9
TIG Welding.................................................................................................................... ......B-9
Wire Feed (Constant Voltage) Welding ..............................................................................B-11
Auxiliary Power Operation .........................................................................................................B-11
Simultaneous Welding and Auxiliary Power Loads ............................................................B-11
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OPERATING INSTRUCTIONS
Read and understand this entire section before operat­ing your Commander 300.
SAFETY INSTRUCTIONS
Do not attempt to use this equipment until you have thoroughly read all the operating 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 such as output terminals or internal wiring.
• Insulate yourself from the work and ground.
• 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.
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.
Only qualified personnel should install, use, or ser­vice this equipment.
ADDITIONAL SAFETY PRECAUTIONS
Always operate the welder with the hinged door closed and the side panels in place. These provide maximum protection from moving parts and insure proper cooling air flow.
OPERATION
B-2 B-2
COMMANDER 300
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WARNING
WARNING
GENERAL DESCRIPTION
The Commander 300 is a diesel engine-driven welding power source. The machine uses a brush type alter­nating current generator for DC multi-purpose welding and for 120/240 VAC auxiliary standby power. The welding control system uses state of the art Chopper Technology.
The generator has a single sealed bearing for mainte­nance-free service. The rotor is a copper wound design with two slip rings and brushes. The stator is wound entirely with heavy gauge copper wire and insu­lated with NEMA class F insulation material. The sta­tor is then impregnated with three layers of high quali­ty varnish. After the stator is assembled using tie bars, the entire assembly is covered with an environmental­ly protective coating. These measures insure trouble­free operation in the harshest environments.
The fuel tank is made from high density polyethylene and holds 25 gallons (94.6 liters) of diesel fuel. This will provide enough fuel to run for 18 hours at full load.
The Deutz F3L-1011 F engine is equipped with a stan­dard, heavy duty, combination fuel filter/water separa­tor element.
RECOMMENDED APPLICATIONS
WELDER
The Commander 300 (Stick model) provides excellent constant current DC welding output for stick (SMAW) welding. The Commander 300 (Stick & Wire model) also provides excellent constant voltage DC welding output for MIG (GMAW) and Innershield (FCAW) welding.
GENERATOR
The Commander 300 provides smooth 120/240 VAC output for auxiliary power and emergency standby power.
DESIGN FEATURES
K1585-2 Commander 300 Deluxe Model Features
FOR WELDING:
• Excellent DC multi-purpose welding for stick, MIG, TIG, cored wire and arc gouging applications.
• 30 to 300 amps output in five slope controlled ranges for out-of position and pipe electrodes, one constant current output range for general purpose welding, and one constant voltage range for MIG wire and cored wire welding.
• 100% duty cycle at 300 amps output and 60 % duty cycle at 375 amps output.
• Dual 3-digit output meters are provided (optional on K1585-1) for presetting the weld amperage or volt­age and displaying the actual amperage and voltage during welding. The meters use superbrite LEDs for improved readability in full sunlight.
• Standard remote control capability with 14-pin and 6­pin connectors for easy connection of Lincoln remote control accessories.
• An internal “Solid State” contactor allows for the selection of “hot” or “cold” output terminals with a toggle switch on the control panel.
• ”Arc Control” potentiometer in Wire and Stick modes for precise adjustment of arc characteristics.
• Advanced circuitry to prevent pop-outs in the five slope modes.
FOR AUXILIARY POWER
• 10,000 watts of 120/240 VAC, 60Hz auxiliary power.
• Power for tools, 120/240 VAC lights, electric pumps and for standby emergency power.
• Power to drive a 2 HP motor (provided it is started under no load).
• Two 15 amp 120 VAC duplex receptacles with GFCI protection for up to 30 amps of 120 VAC power.
• One 50 amp, 120/240 VAC dual voltage receptacle for up to 44 amps of 240 V AC and up to 44 amps per side to separate branch circuits (not in parallel) of 120 VAC single phase auxiliary power. Allows easy connection to premises wiring.
• Weld and provide AC auxiliary power at the same time (within machine total capacity).
OPERATION
B-3 B-3
COMMANDER 300
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ADDITIONAL DESIGN FEATURES
• Deutz 3-cylinder, air/oil cooled diesel engine. Designed for long life, easy maintenance, and excel­lent fuel economy.
• Engine protection system shuts the engine down for low oil pressure, high oil temperature, or a broken fan/engine alternator belt.
• Gauges for oil pressure, oil temperature, engine alternator output and fuel level.
• Indicator lights for low oil pressure, high oil tempera­ture, engine alternator low output/broken belt and low fuel level (on K1585-2 only).
• Automatic low fuel shutdown before running out of fuel (K1585-2 only).
• Engine hour meter standard on all models.
• Extended range 25 gallon (94.6 I) fuel tank.
• Automatic idler reduces engine speed when not welding or drawing auxiliary power. This feature reduces fuel consumption and extends engine life.
• Compact size fits crosswise in full size pick-up truck. Single side engine service.
• Copper alternator windings and high temperature insulation for dependability and long life.
• New paint system on case and base for outstanding corrosion protection.
K1585-1 COMMANDER 300 STANDARD MODEL
The K1585-1 is the standard version of the Commander 300, and has all the features of the K1585-2 Deluxe version except that there are no gauges, low fuel light nor dual output meters. This ver­sion does have fully functional engine protection for low oil pressure, high oil temperature, and alternator output with associated lights.
A field installed Dual Output Meter and Gauge Kit (K1596-1) is available for the K1585-1 Commander
300. The kit includes dual output meters, oil pressure gauge, oil temperature gage, and alternator ammeter.
WELDING CAPABILITY
The Commander 300 is rated 300 amps, 32 VDC at 100% duty cycle and 375 amps, 34 VDC at 60% duty cycle. The maximum open circuit voltage at 1900 RPM is 87 volts. The weld current is variable from 30 to 375 amps.
CONTROLS AND SETTINGS
The welder/generator controls are located on the case front panel. Diesel engine idler control, start/stop con­trols, welding output terminals and ground stud are also on the case front. See Figure B.1 and the expla­nations that follow.
OPERATION
B-4 B-4
COMMANDER 300
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OPERATION
B-5 B-5
COMMANDER 300
ENGINE CONTROLS (Items 1 through 8)
1. RUN/STOP SWITCH: When placed in the “RUN”
position, this switch energizes the fuel solenoid and other electric accessories. When placed in the “STOP” position, the flow of fuel to the injection pump is stopped to shut down the engine. (If the switch is left in the “RUN” position and the engine is not running, the fuel solenoid will be engaged for 15 seconds and then shut down. This is to protect the battery from discharge. After 15 seconds, the RUN/STOP switch must be toggled off then on before starting.)
2. START PUSH BUTTON: Energizes the starter
motor to crank the engine. With the engine “Run / Stop” switch in the “RUN” position, push and hold the START button to crank the engine; release as the engine starts. The START button must be depressed for a minimum of two seconds. Do not press it while engine is running, since this can cause damage to the ring gear and/or starter motor.
3. FUEL LEVEL GAUGE AND LIGHT (K1585-2 only):
Displays the level of diesel fuel in the 25-gallon fuel tank. The yellow light turns on when the fuel gage
reaches the reserve level. Once the reserve level is reached, the engine protection system will shut down the engine after 30 minutes of operation. The machine can be restarted and operated for an addi­tional 30 minutes before the protection system will shut down the engine. This ability to override the engine protection allows the operator to “finish up” if necessary. The operator must watch the fuel level closely to prevent running out of fuel and having to bleed the system.
4. ENGINE TEMPERATURE GAUGE AND LIGHT (K1585-2 Std., K1585-1 Opt.): The gauge displays the engine oil temperature. The yellow temperature light remains off under normal operating tempera­tures. If the light turns on, the engine protection sys­tem will shut down the engine. Check for restrictions at the engine cooling air inlets and outlets (consult the engine operator's manual). Check for loose or disconnected leads at the temperature sender locat­ed on the engine. Check engine cooling blower belt. Also check to be sure that the welder loads are with­in the rating of the welder. The light will remain on when the engine has been shut down due to an over temperature condition.
Figure B.1 Case Front Panel Controls
12
7
9
00000
HOURS
0
23
13
19
9
1
18
17
2
3
FUEL
10
4
OIL
TEMP PRESS
15
16
OIL
24
5
20
22
6 8
AMPS
11
21
14
OPERATION
B-6 B-6
COMMANDER 300
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5. OIL PRESSURE GAUGE AND LIGHT (K1585-2 Std., K1585-1 Opt.): The gauge displays the
engine oil pressure when the engine is running. The yellow oil pressure light remains off with proper oil pressure. If the light turns on, the engine pro­tection system will stop the engine. Check for prop­er oil level and add oil if necessary . Check for loose or disconnected leads at the oil pressure sender located on the engine. The light will go on and stay on when the RUN/STOP switch is switched to the “RUN” position with engine not running.
6. ENGINE ALTERNATOR AMMETER AND LIGHT (K1585-2 Std., K1585-1 Opt.): The yellow engine alternator light is off when battery charging system is functioning normally. If the light turns on, the engine protection system will shut down the engine. Check the engine cooling blower belt. Also, the alternator or the voltage regulator may not be oper­ating correctly. The light may also come on due to a faulty flashing circuit. The light will remain on when the engine has been shut down due to a fault in the alternator, regulator, or the cooling blower belt.
7. IDLER SWITCH: The switch has two positions as follows:
A) In the “HIGH” position, the engine runs at the
high idle speed controlled by the governor.
B) In the “AUTO” position, the idler operates as fol-
lows:
a. When switched from “HIGH” to “AUTO” or
after starting the engine, the engine will operate at full speed for approximately 12 seconds and then go to low idle speed.
b. When the electrode touches the work or
power is drawn for lights or tools (approxi­mately 100 watts minimum) the engine accelerates and operates at full speed.
c. When welding ceases or the AC power load
is turned off, a fixed time delay of approxi­mately 12 seconds starts.
d. If the welding or AC power load is not
restarted before the end of the time delay, the idler reduces the engine speed to low idle speed.
e. The engine will automatically return to high
idle speed when the welding load or AC power load is reapplied.
IDLER OPERATIONAL EXCEPTIONS
When the WELDING TERMINALS switch is in the “WELDING TERMINALS REMOTELY CONTROLLED” position the idler will operate as follows:
a. When the triggering device (Amptrol, Arc Start
Switch, etc.) is pressed, the engine will acceler­ate and operate at full speed provided a welding load is applied within approximately 12 seconds.
b. If the triggering device remains pressed but no
welding load is applied within approximately 12 seconds, the engine will return to low idle speed.
c. If the triggering device is released or welding
ceases, the engine will return to low idle speed after approximately 12 seconds.
8. HOUR METER: The hour meter displays the total time that the engine has been running. This meter is a useful indicator for scheduling preventative maintenance.
WELDER CONTROLS (Items 9 through
14)
9. OUTPUT RANGE SELECTOR SWITCH & OUT­PUT CONTROL: These two controls allow you to
select between various welding output slopes and adjust the desired welding output. Refer to Table B.1 for a description of how these two controls work.
TABLE B.1 OUTPUT RANGE SWITCH
AND OUTPUT CONTROL FUNCTIONS
OUTPUT OUTPUT RANGE CONTROL
2
SELECTOR SWITCH
1
Sloped Output for 5 Range Settings Provides a fine Pipe Welding 60, 90, 150, 230, adjustment of
300 (Max. current welding current on each adjustment from Min (1) to of setting Max (10) within
each range Constant Current 1 Range setting Fabrication and General 30-375 Amps Purpose Welding (This setting also used for TIG.)
Constant Voltage Output 1 Range setting Provides Fine for MIG Wire or CORED 12 to 40 Volts Voltage WIRE Welding Adjustment
1
If the SELECTOR switch is positioned between settings the previ­ous setting is maintained until the switch is properly positioned on a setting.
2
CONTROL also controls O.C.V. while in the 5 sloped output ranges.
10. DIGITAL OUTPUT METER: The digital output meters are located in the center of the control panel between the two large control knobs. The meters allow the output current level to be set prior to welding in stick mode and voltage level to be set prior to welding in the wire modes. During the welding process the meters display the actual output current and voltage, within +1%, -10% accuracy.
11. WELDING TERMINALS SWITCH: The toggle switch on the control panel labeled “WELDING TERMINALS ALWAYS ON” and “WELDING TER­MINALS REMOTELY CONTROLLED” is used to control the operation of the “solid state contactor” which allows for the selection of “Hot” or “Cold” welding terminals.
With the switch in the “WELDING TERMINALS AL W AYS ON” position, the contactor is closed and the welding terminals are always “Hot.”
With the switch in the “WELDING TERMINALS REMOTEL YCONTROLLED” position, the contac­tor operation is controlled by an Amptrol, Arc Start Switch or some other type of triggering device through the use of a control cable connected to the 6-pin or 14-pin MS connector.
When the triggering device is pressed the contac­tor is closed and the welding terminals are “Hot.”
When the triggering device is released the con­tactor is opened and the welding terminals are “Cold.”
12. LOCAL/REMOTE SWITCH: The toggle switch on the control panel labeled “LOCAL/REMOTE” gives the operator the option of controlling the output at the welder control panel or at a remote station. For remote control, the toggle switch is set in the “REMOTE” position. For control at the welder control panel, the toggle switch is set in the “LOCAL” position.
13. 6 - PIN CONNECTOR: The 6-pin connector locat- ed on the control panel allows for connection of interfacing equipment.
14. WELD OUTPUT TERMINALS + AND – : These 1/2 - 13 studs with flange nuts provide welding connection points for the electrode and work cables. For positive polarity welding, the electrode cable connects to the “+” terminal and the work cable connects to this “-” terminal. For negative polarity welding, the work cable connects to the “+” terminal and the electrode cable connects to this “-” terminal.
AUXILIARY POWER CONTROLS (Items 15 through 19)
15. 120/240VAC RECEPTACLE: This is a 120/240VAC (14-50R) receptacle that provides 240VAC or can be split for 120VAC single-phase auxiliary power. This receptacle has a 50-amp rat­ing. Refer to AUXILIARY POWER RECEPTA- CLES in the Installation section for further informa­tion about this receptacle. Also refer to AUXIL- IARY POWER OPERATION later in this section.
16. 50 AMP CIRCUIT BREAKERS: These circuit breakers provide separate overload current protec­tion for each 120V circuit at the 240V receptacle.
17. 120VAC RECEPTACLES: These two 120VAC (5- 15R) receptacles with GFCI protection provide 120VAC for auxiliary power. These receptacles have a 20 amp total rating. Refer to AUXILIARY POWER RECEPT ACLES in the Installation section for further information about these receptacles. Also refer to AUXILIARY POWER OPERATION later in this section.
18. 15 AMP CIRCUIT BREAKERS: These circuit breakers provide separate overload current protec­tion for each 120VAC receptacle.
19. GROUND STUD: Provides a connection point for connecting the machine case to earth ground for the safest grounding procedure. Refer to MACHINE GROUNDING in the Installation section for proper machine grounding information.
20. 15 AMP CIRCUIT BREAKER: This circuit breaker provides overload protection for the 120 VAC cir­cuit in the 14-pin connector.
21. VOLTMETER +/- SWITCH: Changes the polarity display on the wire feeder.
22. 15 AMP CIRCUIT BREAKER: This circuit breaker provides overload protection for the 42 VAC circuit in the 14-pin connector.
23. 14-PIN CONNECTOR: For quick connection of interfacing equipment.
24. ARC CONTROL: The “ARC CONTROL” poten- tiometer is active in two modes: “STICK/TIG” and “WIRE WELDING” with different purposes in each mode.
“STICK/TIG” mode: In this mode, the “ARC CON­TROL” knob sets the short circuit current during stick welding. Increasing the number from 1 to 10 increas­es the short circuit current. This prevents sticking of the electrode to the plate at low welding current set­tings. This also increases spatter. It is recommended that the control be set to the minimum number without electrode sticking.
OPERATION
B-7 B-7
COMMANDER 300
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“WIRE WELDING” mode: In this mode increasing the number from 1 to 10 changes the arc from soft and washed-in to crisp and narrow. It acts as an induc­tance control. The proper setting depends on the appli­cation and operator preference.
In general, MIG welding performs best in the “SOFT” range and Innershield in the “CRISP” range.
ENGINE OPERATION
DO NOT RUN THE ENGINE AT EXCESSIVE SPEEDS. The maximum allowable high idle speed for the Commander 300 is 1900 RPM, no load. Do NOT increase the idle speed 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 Deutz engine instruction manual that is shipped with your Commander 300.
STARTING THE ENGINE
1. Open the engine compartment door and check that the fuel shutoff valve located to the left of the fuel fil­ter housing is in the open position. (The lever should be in line with the hose.)
2. Check for proper oil level on the oil dipstick. Close the engine compartment door.
3. Remove all plugs connected to the AC power recep-
tacles.
4. Set IDLER switch to “AUTO.”
5. Set the RUN/STOP switch to “RUN.” Observe that all engine protection lights momentarily turn on. Some lights may turn off before starting. Check the fuel gauge (K1585-2 only) to make sure that there is an adequate fuel level.
6. Press and hold the engine START button for a min­imum of 2 seconds.
7. Release the engine START button when the engine starts.
8. Check that the indicator lights are off. If the LOW FUEL light is on (K1585 2 only), the engine will shut down 30 minutes after starting. If any other indica­tor light is on after starting, the engine will shut down in a few seconds. Investigate any indicated problem.
9. Allow the engine to warm up at low idle speed for several minutes before applying a load and/or switching to high idle. Allow a longer warm up time in cold weather.
COLD WEATHER STARTING
With a fully charged battery and the proper weight oil, the engine should start satisfactorily even down to about 0°F. With the above and the optional ether starter kit (K887-1), the engine should start satisfacto­rily down to about -20°F. With the above and an oil pan preheating system,* the engine should start satisfacto­rily down to about -30°F. With the above and a battery warmer,* the engine should start satisfactorily down to about -40°F.
* Contact your local Lincoln Electric Representative for suggested after-market kits.
STOPPING THE ENGINE
Switch the RUN/STOP switch to “STOP.” This turns off the voltage supplied to the shutdown solenoid. Aback­up shutdown can be accomplished by shutting off the fuel valve located in the fuel line.
BREAK-IN PERIOD
The engine used to supply power for your welder is a heavy duty, industrial engine. It is designed and built for rugged use. It is very normal for any engine to use small quantities of oil until the break-in is accom­plished. Check the oil level twice a day during the break-in period (about 200 running hours).
During break-in, subject the Commander 300 to heavy loads. Avoid long periods running at idle. Before stopping the engine, remove all loads and allow the engine to cool several minutes.
The heavy loading of the engine during break-in, with­in the rating of the machine, is recommended to prop­erly seat the piston rings and prevent wetstacking. Wetstacking is an accumulation of unburned fuel and/or lubricant in the form of a wet, black, tar-like sub­stance in the exhaust pipe. The rings are seated and the break-in period is complete when there are no longer any signs of wetstacking, which should occur within the first 50 to 100 hours of operation.
OPERATION
B-8 B-8
COMMANDER 300
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WARNING
CAUTION
Using your welder at low amperages with long idle run­ning periods during the break-in period may result in a glaze forming on the engine cylinder walls and the rings not seating properly. No amount of loading will properly seat the piston rings after they are glazed over.
TYPICAL FUEL CONSUMPTION
Refer to Table B.2 for typical fuel consumption of the Commander 300 engine for various operating scenar­ios.
Table B.2 Deutz F3L 912 Engine Fuel Consumption
WELDER OPERATION
STICK WELDING
The Commander 300 can be used with a broad range of DC stick electrodes.
The SELECTOR switch provides five overlapping slope controlled current ranges. The CONTROL adjusts the current from minimum to maximum within each range. Voltage is also controlled by the CON­TROL in the slope controlled setting. These slope-con­trolled settings are intended for “out-of-position” weld­ing, including pipe welding, where the operator would like to control the current level by changing the arc length.
PIPE WELDING
The Commander 300 is equipped with special circuitry to minimize pop-outs in the five slope modes at any open circuit voltage.
For a soft arc characteristic, set the “SELECTOR” Switch to the lowest setting that still provides the cur­rent you need and set the “CONTROL” near maximum. For example: to obtain 140 amps and a soft arc, set the “SELECTOR” Switch to the “150 MAX” position and then adjust the “CONTROL” for 140 amps.
When a forceful “digging” arc is required, use a higher setting and lower the open circuit voltage. For example: to obtain 140 amps and a forceful arc, set the “SELEC­TOR” to the “230 MAX” position and then adjust the “CONTROL” to get 140 amps.
CONSTANT CURRENT (CC) WELDING
The most clockwise position of the “SELECTOR” switch is designed for horizontal welds with all types of electrodes, but especially low hydrogen. The “CON­TROL” adjusts the full range of 30 to 375 amps. This setting provides a soft, constant current arc. If a more forceful arc is desired, then select the proper range from the slope controlled current ranges.
In the CC mode, sticking can be prevented by adjust­ing the “ARC CONTROL.” Turning this control clock­wise increases the short circuit current, thus preventing sticking. This is another way of increasing arc force.
TIG WELDING
The Commander 300 can be used in a wide variety of DC Tungsten Inert Gas (TIG) welding applications. When used with the K930-1 or -2 TIG module or K799 Hi-Freq Unit, ratings are limited to 375 amps at 20% duty cycle, 300 amps at 60% duty cycle, and 250 amps at 80% duty cycle.
OPERATION
B-9 B-9
COMMANDER 300
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Low Idle - No Load 1400 RPM
High Idle - No Load 1900 RPM
DC CC Weld Output 300 Amps @ 32 Volts
Auxiliary Power
10,000 VA
.27 gallons/hour
(1.02 liters/hour)
.48 gallons/hour
(1.81 liters/hour)
1.34 gallons/hour (5.07 liters/hour)
1.32 gallons/hour (5.00 liters/hour)
92.5
52
18.6
18.9
Deutz F3L 1011
29 HP
@ 1800 RPM
Running Time for
25 gallons
(Hours)
CAUTION
COMMANDER 300 SETTINGS WHEN USING THE K799 HL-FREQ UNIT
a. Set the SELECTOR switch to the “30-375” setting
(STICK/TIG). b. Set the IDLER switch to the “HIGH” position. c. Set the LOCAL/REMOTE switch to the “REMOTE”
position.
d. Set the WELDING TERMINALS switch to the
“WELDING TERMINALS ALWAYS ON” position.
This will close the solid state contactor and provide
an always “hot” electrode. (Note: This is necessary because the K799 circuitry
with respect to the #2 and #4 leads does not provide the proper signal to open and close the solid state con­tactor in the Commander 300).
COMMANDER 300 SETTINGS WHEN USING THE K930-1 TIG MODULE
a. Set the SELECTOR switch to the 30-375 Setting
(STICK/TiG). b. Set the IDLER switch to the “AUTO” position. c. Set the LOCAL/REMOTE switch to the “REMOTE”
position.
d. Set the WELDING TERMINALS switch to the
“WELDING TERMINALS REMOTELY CON-
TROLLED” position. This will keep the solid state
contactor open and provide a “cold” electrode until
the triggering device (Amptrol or Arc Start Switch) is
pressed.
OPERATION
B-10 B-10
COMMANDER 300
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Tungsten Electrode Diameter
in. (mm)
2-15 5-20
15-80
70-150
150-250 250-400
400-500 500-750
750-1000
3 3 3
10-20 15-30
25-40 40-55
55-80
180-125
3-8 (2-4) 5-10 (3-5) 5-10 (3-5)
5-10 (3-5) 13-17 (6-8)
15-23 (7-11) 21-25 (10-12)
23-27 (11-13) 28-32 (13-15)
3-8 (2-4) 5-10 (3-5) 5-10 (3-5)
9-13 (4-6) 11-15 (5-7)
11-15 (5-7) 13-17 (6-8)
18-22 (8-10) 23-27 (11-13)
TIG TORCH
Nozzle Size
4 5
Approximate Argon Gas Flow Rate
C.F.H. (l/min.)
DCEN (-) DCEP (+)
#4, #5, #6
#5, #6 #6, #7, #8
#8, #10
0 .010 (.25)
0.020 (.50)
0.040 (1.0) 1/16 (1.6) 3/32 (2.4)
1/8 (3.2) 5/32 (4.0)
3/16 (4.8) 1/4 (6.4)
1%, 2% Thoriated Tungsten
1%, 2% Thoriated Tungsten
Aluminum Stainless Steel
Table B.3 TYPICAL CURRENT RANGES1FOR TUNGSTEN ELECTRODES
2
1
When used with argon gas. The current ranges shown must be reduced when using argon/helium or pure helium shield­ing gases.
2
Tungsten electrodes are classified as follows by the American Welding Society (AWS):
Pure EWP 1% Thoriated EWTh-1
2% Thoriated EWTh-2 Though not yet recognized by the AWS, Ceriated Tungsten is now widely accepted as a substitute for 2% Thoriated Tungsten in AC and DC applications.
3
DCEP is not commonly used in these sizes.
4
TIG torch nozzle “sizes” are in multiples of 1/16ths of an inch:
# 4 = 1/4 in. (6 mm) # 5 = 5/16 in. (8 mm) # 6 = 3/8 in. (10 mm) # 7 = 7/16 in. (11 mm) # 8 = 1/2 in. (12.5 mm) #10 = 5/8 in. (16 mm)
5
TIG torch nozzles are typically made from alumina ceramic. Special applications may require lava nozzles, which are
less prone to breakage, but cannot withstand high temperatures and high duty cycles.
WIRE FEED (CONSTANT VOLTAGE) WELDING
Connect a wire feeder to the Commander 300 and set welder controls according to the instructions listed ear­lier in this section.
The Commander 300 in the “WIRE WELDING” posi­tion, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) electrodes and solid wires for MIG welding (gas metal arc weld­ing). Welding can be finely tuned using the “ARC CON­TROL.”
Some recommended Innershield electrodes are NR­311, NS-3M, NR-207, NR-203 Ni 1%, NR-204-H.
Recommended Outershield electrodes are 0S-70, 0S71M.
Some recommended solid wires for MIG welding are.035 (0.9 mm), .045 (1.1 mm) and .052 (1.3 mm), L­50 and L56, .035 (0.9 mm) and .045 (1.1 mm) Blue Max MIG 308 LS.
For any electrodes, including the above recommenda­tions, the procedures should be kept within the rating of the machine. For additional electrode information, see Lincoln publications N-675, GS-100 and GS-210.
AUXILIARY POWER OPERATION
Start the engine and set the IDLER control switch to the desired operating mode. Full power is available regardless of the welding control settings, if no welding current is being drawn.
The auxiliary power of the Commander 300 consists of two 15 Amp-120 VAC (5-15R) duplex receptacles and one 50 Amp-120/240 VAC (14-50R) receptacle. The 120/240VAC receptacle can be split for single-phase 120 VAC operation.
The auxiliary power capacity is 10,000 watts of 60 Hz, single-phase power. The auxiliary power capacity rat­ing in watts is equivalent to volt-amperes at unity power factor. The maximum permissible current of the 240 VAC output is 44 A. The 240 VAC output can be split to provide two separate 120 VAC outputs with a maxi­mum permissible current of 44 Aper output to two sep­arate 120 VAC branch circuits. Output voltage is with­in + 10% at all loads up to rated capacity.
NOTE: The 120/240V receptacle has two 120V outputs of different phases and cannot be paralleled.
The auxiliary power receptacles should only be used with three-wire, grounded type plugs or approved dou­ble-insulated tools with two-wire plugs.
The current rating of any plug used with the system must be at least equal to the current capacity of the associated receptacle.
SIMULTANEOUS WELDING AND AUXILIARY POWER LOADS
It must be noted that the above auxiliary power ratings are with no welding load. Simultaneous welding and power loads are specified in table B.4. The permissi­ble currents shown assume that current is being drawn from either the 120 VAC or 240 VAC supply (not both at the same time).
OPERATION
B-11 B-11
COMMANDER 300
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Welding
Output Range
Setting
30-375
300 230 150
90 60
Welding Output
300A/32V 300A/32V 230A/30V 150A/29V
90A27V
60A/25V
Permissible
Power - Watts
(Unity Power
Factor)
400
400 3100 5650 7600 8500
Permissible
Current in
@120 V ±10% *
3.3
3.3
26* 47** 63** 70**
Auxiliary Amperes
@ 240 V ±10%
1.6
1.6 13
23.5
31.5 35
* Each duplex receptacle is limited to 15 amps. ** Not to exceed 44 amps per 120VAC branch circuit when splitting the 240VAC output.
TABLE B.4 Commander 300 Simultaneous Welding and Power Loads
NOTES
B-12 B-12
COMMANDER 300
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TABLE OF CONTENTS
- ACCESSORIES -
Accessories...........................................................................................................................Section C
Options/Accessories ...................................................................................................................C-2
Field Installed Options ....................................................................................................... ..C-2
Stick Welding Accessories....................................................................................................C-2
TIG Welding Accessories .....................................................................................................C-2
Semiautomatic Welding Accessories....................................................................................C-3
Connection of Lincoln Electric Wire Feeders.......................................................................C-3
Connection of the LN-7..................................................................................................C-4
Connection of the LN-7 Using the K584 or K594 Input Cable Assembly......................C-5
Connection of the LN-8 Using the K867 Universal Adapter ..........................................C-6
Connection of the LN-8 Using the K595 Input Cable Assembly ...................................C-7
Connection of the LN-23-P ............................................................................................C-8
Connection of the LN-25................................................................................................C-9
Section C-1 Section C-1
COMMANDER 300
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OPTIONS/ACCESSORIES
The following options/accessories are available for your Commander 300 from your local Lincoln Distributor.
FIELD INSTALLED OPTIONS K802R POWER PLUG KIT - Provides a plug for each
receptacle.
K857 25 ft. (8.5 m) or K857-1 100 ft. (30.4 m) REMOTE CONTROL - Portable control provides same
dial range as the output control on the welder from a location up to the specified length from the welder. Has convenient plug for easy connection to the welder. The Commander 300 is equipped with a 6-pin connector for connecting the remote control and a toggle switch for selecting “LOCAL” output control or “REMOTE” output control.
K704 ACCESSORY SET - Includes 35 feet (10 m) of electrode cable and 30 feet (9 m) of work cable, head­shield, work clamp and electrode holder. Cable is rated at 500 amps, 60% duty cycle.
K953-1 TWO-WHEEL TRAILER - For road, in-plant and yard towing. Road towing with optional fender and light kit. (For highway use, consult applicable federal, state and local laws regarding possible additional requirements.)
• K953-1 Trailer
• K958-1 Ball Hitch
• K958-2 Lunette Eye Hitch
• K959-1 Fender & Light Kit
• K965-1 Cable Storage Rack
K887-1 ETHER START KIT - Provides maximum cold weather starting assistance for frequent starting below 10( F (-12.2( C). Required Ether tank is not provided with kit.
K1604-1 OIL DRAIN KIT - Includes ball valve, hose and clamp.
K1690-1 (2 DUPLEXES) GFCI KIt - Includes a UL approved 1 15 volt ground fault circuit interrupter recep­tacle (duplex type) with covers and installation instruc­tions. Each half of the receptacle is rated 15 amps, but the maximum total current from the GFCI duplex is lim­ited to 20 amps. The GFCI receptacle replaces the factory installed 115 volt duplex receptacle.
S24647 SPARK ARRESTER
K1596-1 DUAL OUTPUT METERS AND GAUGES -
Dual output meters provide preset ability of voltage for wire welding and current for stick welding. Measures both current and voltage when welding. Gauges include battery ammeter, engine temperature, and engine oil pressure. Fuel gauge is not available in kit form.
K1597-1 42 VAC TRANSFORMER KIT - For products requiring 42 VAC power source.
STICK WELDING ACCESSORIES
K704 Accessory Kit, which includes:
• Electrode holder and cable.
• Ground clamp and cable.
• Headshield.
TIG WELDING ACCESSORIES
Magnum TIG Torch
• Magnum Parts Kit and Argon gas
• K930-ALL TIG Module (not required for scratch-start DC TIG welding)
• K936-1 Control Cable
• K870 Foot Amptrol
Also available:
• K963-1/-2 Hand Amptrol
• K814 Arc Start Switch
• K937-22 Control Cable Extension
• K937-45 Control Cable Extension
• K844-1 Water Valve
ACCESSORIES
C-2 C-2
COMMANDER 300
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