Lincoln Electric MAGNUM 350, MAGNUM 550 User Manual
™
RETURN TO MAIN MENU
MAGNUM PRO 350 and 550 FUME GUNS
TYPE: K2649-1, K2650-1
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.
IM990
October, 2008
Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com
OPERATORʼS MANUAL
Copyright © Lincoln Global Inc.
• World's Leader in Welding and Cutting Products •
• Sales and Service through Subsidiaries and Distributors Worldwide •
i
SAFETY
WARNING
CALIFORNIA PROPOSITION 65 WARNINGS
For Diesel Engines: Diesel engine exhaust and
some of its constituents are known to the State
of California to cause cancer, birth defects, and
other reproductive harm.
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.
For Gasoline Engines: The engine exhaust from
this product contains chemicals known to the
State of California to cause cancer, birth defects,
or other reproductive harm.
i
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.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.
___________________________________________________
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.
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 ʻ95
ii
SAFETY
ii
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. The operation of welding fume control equipment is affected
by various factors including proper use and positioning of the
equipment, maintenance of the equipment and the specific
welding procedure and application involved. Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL
and ACGIH TLV limits.
5.c.
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.
vapors
to
5.d. 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.e. Read and understand the manufacturerʼs instructions for this
equipment and the consumables to be used, including the
material safety data sheet (MSDS) and follow your
employerʼs safety practices. MSDS forms are available from
your welding distributor or from the manufacturer.
5.f. Also see item 1.b.
AUG 06
iii
SAFETY
iii
WELDING and CUTTING
SPARKS can
cause fire or explosion.
6.a.
Remove fire hazards from the welding area.
If this is not possible, cover them to prevent
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
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.
the welding sparks from starting a fire.
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 manufacturerʼs
recommendations.
8.c. Ground the equipment in accordance with the U.S. National
Electrical Code and the manufacturerʼs recommendations.
6.I. Read and follow NFPA 51B “ Standard for Fire Prevention
During Welding, Cutting and Other Hot Work”, available from
NFPA, 1 Batterymarch Park,PO box 9101, Quincy, Ma
022690-9101.
6.j. Do not use a welding power source for pipe thawing.
Jan, 07
iv
SAFETY
iv
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 LʼArc
1. Protegez-vous contre la secousse électrique:
a. Les circuits à lʼélectrode 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 sʼisoler 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 lʼeau 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 sʼapplicuent aussi au pistolet de
soudage.
6. Eloigner les matériaux inflammables ou les recouvrir afin de
prévenir tout risque dʼincendie dû aux étincelles.
7. Quandonnesoud
la masse. Un court-circuit accidental peut provoquer un
échauffement et un risque dʼincendie.
8. Sʼassurer que la masse est connectée le plus prés possible de
la zone de travail quʼil est pratique de le faire. Si on place la
masse sur la charpente de la construction ou dʼautres 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 dʼincendie ou dʼechauffement des chaines et des
câbles jusquʼà ce quʼils 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
dʼopérations de dégraissage, nettoyage ou pistolage. La
chaleur ou les rayons de lʼarc 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” CSA Standard
W 117.2-1974.
e pas, poser la pince à une endroit isolé de
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 nʼimporte quelle partie du
corps.
3. Un coup dʼarc peut être plus sévère quʼun coup de soliel, donc:
a. Utiliser un bon masque avec un verre filtrant approprié ainsi
quʼun verre blanc afin de se protéger les yeux du rayonnement de lʼarc et des projections quand on soude ou
quand on regarde lʼarc.
b. Porter des vêtements convenables afin de protéger la peau
de soudeur et des aides contre le rayonnement de lʻarc.
c. Protéger lʼautre personnel travaillant à proximité au
soudage à lʼaide dʼécrans appropriés et non-inflammables.
4. Des gouttes de laitier en fusion sont émises de lʼarc de
soudage. Se protéger avec des vêtements de protection libres
de lʼhuile, 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 lʼon pique le laitier.
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
lʼélectricité 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, Iʼinstallation et lʼentretien du poste seront
effectués par un électricien qualifié.
3. Avant de faires des travaux à lʼinterieur de poste, la debrancher à lʼinterrupteur à la boite de fusibles.
4. Garder tous les couvercles et dispositifs de sûreté à leur place.
Mar. ʻ93
Thank You
vv
for selecting a QUALITY product by Lincoln Electric. We want you
to take pride in operating this Lincoln Electric Company product •••
as much pride as we have in bringing this product to you!
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric
for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that
time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or
advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customerʼs particular purpose, with respect
to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any
such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with
respect to the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control
of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in
applying these types of fabrication methods and service requirements.
Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com
for any updated information.
CUSTOMER ASSISTANCE POLICY
Please Examine Carton and Equipment For Damage Immediately
When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, Claims
for material damaged in shipment must be made by the purchaser against the transportation company at the
time the shipment is received.
Please record your equipment identification information below for future reference. This information can be found
on your equipment nameplate.
Model Name and Sales Spec Number (K-xxx) _____________________________________
Date of Purchase __________________________________
Whenever you request replacement parts for or information on this equipment always supply the information you
have recorded above.
On-Line Product Registration
- Register your machine with Lincoln Electric either via fax or over the Internet.
• For faxing: Complete the form on the back of the warranty statement included in the literature packet
accompanying this machine and fax the form per the instructions printed on it.
• For On-Line Registration: Go to our
“Product Registration”. Please complete the form and submit your registration.
Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it
handy for quick reference. Pay particular attention to the safety instructions we have provided for your protection.
The level of seriousness to be applied to each is explained below:
WEB SITE at www.lincolnelectric.com. Choose “Quick Links” and then
WARNING
This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life.
CAUTION
This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment.
TABLE OF CONTENTS
Page.
Installation ..........................................................................................................Section A
Technical Specifications ...............................................................................................A-1
Unpacking the Spool Gun............................................................................................A-2
Fume Gun Familiarization .....................................................................................A-2
Assembly of Fume Gun Internal Parts...........................................................A-2, A-3
Safety Precautions.......................................................................................................A-3
Compatibility of Welding Machines and Wire Feeders ................................................A-3
Preparing the Fume Gun for Welding..........................................................................A-3
Select and Install a Wire Feeder Connection K Kit .....................................................A-4
Select and Install Gun Consumable Parts...................................................................A-5
Connect the Gun to the Wire Feeder...........................................................................A-6
Connect the Gun to the Fume Collection System .......................................................A-6
__________________________________________________________________________
O
PERATION...........................................................................................................Section B-1
Safety Precautions.......................................................................................................B-1
Product Description......................................................................................................B-1
Selecting or Changing the Trigger Position .................................................................B-2
Prepare the Fume Gun for Welding............................................................................ B-3
Load Specified Wire into the Gun............................................................................... B-3
Make the Weld .............................................................................................................B-3
__________________________________________________________________________
Accessories......................................................................................................Section C-1
__________________________________________________________________________
Maintenance.........................................................................................................Section D
Recommended Tools ...................................................................................................D-1
Routine Cleaning and Inspections...............................................................................D-1
Gas Diffuser Replacement...........................................................................................D-1
Liner Assembly Cleaning or Replacement...................................................................D-1
Trigger and Accessory Switch Lead Routings .............................................................D-2
Gun Tube Replacement...............................................................................................D-3
Trigger Assembly Replacement ...................................................................................D-3
Gun Cable Assembly Replacement.....................................................................D-3, D-4
__________________________________________________________________________
Troubleshooting ..................................................................................................Section E
How To Use Trouble Shooting Guide...........................................................................E-1
Troubleshooting.................................................................................................E-2 to E-5
__________________________________________________________________________
Parts List.................................................................................P-202-AB, P-202-AC Series
__________________________________________________________________________
vivi
A-1
INSTALLATION
TECHNICAL SPECIFICATIONS - MAGNUM PRO FUME GUNS
MODELS
K2649-1 Magnum Pro 350 amp Fume Gun
K2650-1 Magnum Pro 550 amp Fume Gun
WELDING PROCESSES
GMAW (MIG), FCAW (also FCAW-SS), and FCAW-GS on ferrous base metals.
FILLER WIRE ALLOYS
Lincoln Super Arc, Super Glide, Innershield, and Outershield brand products.
MAXIMUM WIRE SIZES (DIAMETERS) BY WELDING PROCESSES
Both Models: 1/16 inch solid wire, GMAW
K2649-1: 1/16 inch cored wire, FCAW and FCAW-GS
K2650-1: 3/32 inch cored wire, FCAW and FCAW-GS
A-1
RATED WELDING CURRENT AND DUTY CYCLE (10-MINUTE BASIS)
K2649-1: 350 amps at 100%, all processes
K2650-1: 550 amps at 100%, FCAW and FCAW-GS
K2650-1: 450 amps at 100%, GMAW
OVERALL WEIGHT
K2649-1: 17.5 lbs.
K2650-1: 20.0 lbs.
CABLE LENGTH
15.0±0.2 feet
METHOD OF GUIDANCE
Semiautomatic (manually-guided)
METHOD OF COOLING
Air-cooled
MAGNUM™ PRO 350 and 550 FUME GUNS
A-2
INSTALLATION
A-2
UNPACKING THE FUME GUN
Fume guns are factory-assembled and tested. Both
gun models are shipped with a FCAW fume collection
nozzle installed. Contact tips for 0.045 and 3/32”
Diameter Wire are also installed on the 350 and 550
models, respectively. After opening the packaging,
check that it contains 1 fully assembled fume gun, 1
GMAW fume collection nozzle, and 1 instruction manual (IM990).
FUME GUN FAMILIARIZATION (550 amp
model shown)
GUN HANDLE (Figure A.1, Items 1 thru 10)
1. 1/8-Turn Fume Collection Nozzle (FCAW selfshielded version shown).
2. Heavy-Duty Slip-On Gas Nozzle Assembly.
3. Heavy-Duty Gas Diffuser Assembly with Magnum
Pro Contact Tip.
4. Fume Tube Assembly with Integral Gun Hanger and
Locking Collar.
5. Gun Hanger.
6. Handle Cooling Vents.
7. Trigger Assembly (SPST contacts, non-locking) with
Finger Extension. Optional locking trigger assembly
is available.
8. Swivel and Bellows Assemblies increase gun flexibility.
9. Locking Collar & Swivel allow Rapid Selection of
Trigger-Down (shown) or Trigger-Up Positions.
10. Low-Profile Reusable Hose Clamps.
FIGURE A.1
FIGURE A.2
ASSEMBLY OF FUME GUN INTERNAL
PARTS (550 amp model shown)
GUN HANDLE END (Figure A.3, Items 1 thru 7)
1. Two spiders support the handle and allow it to swivel around the gun tube assembly for Trigger-Down
(shown) or Trigger-Up Positions.
2. Gun tube lock (with roll pin) prevents handle overrotation to avoid trigger lead damage.
3. Accessory switch leads (blue and black) may serve
as spare trigger leads.
4. Trigger and accessory leads are routed to permit air
flow and avoid lead damage.
5. One-piece copper electrical connector (cone) and
gas hose barb fitting.
6. Copper cable nut for high electrical conductivity.
7. Two clamps (non-reusable) secure the cableʼs core
tube to its hose barb fittings.
FIGURE A.3
FEEDER END (Figure A.2, Items 1 thru 6)
1. Low-Profile Reusable Hose Clamps.
2. Incoming Connector Assembly: accommodates all
standard Lincoln Magnum 300, 400, and 550 feeder
connection K kits.
3. Gas Plug.
4. Vacuum Connection.
5. Modular Trigger Terminal Housing.
6. Vacuum Hose and Cover. Cover resists hot weld
spatter; can be quickly and easily replaced with
hook & eye closure along its entire length.
MAGNUM™ PRO 350 and 550 FUME GUNS
FEEDER END (Figure A.4, Items 1 thru 8)
1. Accessory switch leads (blue and black) may serve
as spare trigger leads.
2. Trigger and accessory leads are routed to permit air
flow and avoid lead damage.
3. One-piece copper electrical connector (cone) and
gas hose barb fitting.
4. Copper cable nut for high electrical conductivity.
5. Two clamps (non-reusable) secure the cableʼs core
tube to its hose barb fittings.
A-3
INSTALLATION
A-3
6. Split Y connector halves allow the gunʼs feeder end
to be easily serviced.
7. Modular trigger terminal housing. May be easily
changed to dual-procedure (DP) harness.
8. Incoming connector assembly accepts existing wire
feeder connection K kits for Magnum 300, 400, and
550 guns.
FIGURE A.4
SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK CAN KILL.
• Turn the input power OFF at the welding power source before installation
or changing drive rolls and/or guides.
• Do not touch electrically live parts.
• Magnum™ Pro Fume Guns When inching with the
gun trigger, electrode and drive mechanism are
"hot" to work and ground and could remain energized several seconds after the gun trigger is
released.
• Welding Machines, Wire Feeders, and Fume
Extraction Equipment--Read and understand the
equipmentsʼ instruction manuals and all hazard
warnings on equipment and in the manuals.
• Personal Protective Equipment--Wear
the proper personal protective equipment for welding, including but not
limited to, safety glasses, hearing
protection, protective footwear, welding helmet, welding gloves, and welding leathers.
• This product shall not be used in precipitation, or
in wet or damp locations.
• Use these fume guns only with all consumable
parts properly installed in place.
• Do not use these fume guns for arc-gouging.
------------------------------------------------------------------------
COMPATIBILITY OF WELDING
MACHINES AND WIRE FEEDERS
1. If the welding process requires welding gas (FCAWGS, GMAW, or MIG), then either the welding
machine or feeder must be equipped with a gas
solenoid valve to supply welding gas to the fume
gun.
2. A gas mixer and regulator is required upstream of
the gas solenoid valve to supply specified blends of
welding gas at the specified flow rate.
PREPARING THE FUME GUN FOR
WELDING
• Read all safety information: See the front of this
instruction manual. Perform the following sections in
the order shown.
Prepare the Welding Machine and Wire Feeder as
follows:
1. Read all safety information in all related instruction
manuals.
2. Disconnect input power to the machine and the wire
feeder.
3. Machine and feeder polarity settings: Set to match
the electrodeʼs polarity requirement per the instruction manuals.
4. Gas selection: Connect gas supply to either the
machineʼs or the feederʼs gas solenoid valve. Set
the gas mixer (if required) to the specified gas composition.
5. Gas flow rate: Set the supply regulator to deliver a
gas flow rate of 50 to 70 SCFH thru the fume gun.
MAGNUM™ PRO 350 and 550 FUME GUNS
Loading...