Lincoln Electric MAGNUM 350 User Manual Download Page 1

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OPERATORʼS MANUAL

MAGNUM PRO 350 and 550 FUME GUNS

IM990

October, 2008

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 opera-
tion

your

part.

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.

• 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 •

™

Summary of Contents for MAGNUM 350

Page 1: ...n and thoughtful opera tion 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 y...

Page 2: ...Y 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...

Page 3: ...r 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 w...

Page 4: ...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 s...

Page 5: ...ri s et non inflammables 4 Des gouttes de laitier en fusion sont mises de l arc de soudage Se prot ger avec des v tements de protection libres de l huile tels que les gants en cuir chemise paisse pan...

Page 6: ...sion 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 an...

Page 7: ...Welding B 3 Load Specified Wire into the Gun B 3 Make the Weld B 3 __________________________________________________________________________ Accessories Section C 1 __________________________________...

Page 8: ...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 K2649 1 350 amps at 100 all processes K2650 1 550 amps at 100 FCAW and FCAW GS K2650 1...

Page 9: ...ru 10 1 1 8 Turn Fume Collection Nozzle FCAW self shielded 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 wi...

Page 10: ...ow rate of 50 to 70 SCFH thru the fume gun SAFETY PRECAUTIONS ELECTRIC SHOCK CAN KILL Turn the input power OFF at the weld ing power source before installation or changing drive rolls and or guides Do...

Page 11: ...74 Series 10 feeders LN 15 PF 10M PF 15M Power MIG Wirematic series feeders LN 7 LN 8 LN 9 series 0 052 max LN 8 LN 9 series 1 16 min Series 10 feeders PF 10M No 2 3 and 4 guns Intellimatic Side Kick...

Page 12: ...NSUMABLE PARTS 1 LINER ASSEMBLY Note that the Magnum Pro 350 and 550 amp fume guns use the same liner assemblies as the Magnum 300 and 550 MIG gun products respectively 2 CONTACT TIP See Figure A 5 3...

Page 13: ...ed 3 Plug the trigger harness into the gun s Y connector Plug the trigger harness connector into the recep tacle on the front of the feeder CONNECT THE GUN TO THE FUME COLLECTION SYSTEM 1 Speed settin...

Page 14: ...ar eye ear and body protection SAFETY PRECAUTIONS Read and understand this entire section before operat ing the machine Observe additional Safety Guidelines detailed in the beginning of this manual WA...

Page 15: ...ER POSITION See Figure B 1 1 Trigger down position shown 2 Loosen Locking Collar counter clockwise right hand threads on fune tube 3 Hold fume tube stationary Rotate handle Counter clockwise counter c...

Page 16: ...ion Manual 2 Cut off the wire so that it extends about 1 4 inches from the contact tip 3 Verify that the input power is connected to the machine and wire feeder 4 Flip the machine s and feeder s power...

Page 17: ...C 1 ACCESSORIES C 1 ACCESSORIES OR OPTIONS Optional dual procedure switch and modular trigger connection to wire feeder Spoiler An optional ergonomic hand grip MAGNUM PRO 350 and 550 FUME GUNS...

Page 18: ...s that have become illegible GAS DIFFUSER REPLACEMENT See Select and Install Consumable Parts Installation Section This part may need to be replaced if it has accumulat ed excessive spatter and cannot...

Page 19: ...nut end 2 Run sleeved trigger leads red and white parallel to gun centerline and next to accessory leads sleeving Rear end of sleeving right side in photo is even with copper cable nut end 3 Remove s...

Page 20: ...place and reassemble the gun Be careful not to pinch any leads between gun handle halves GUN CABLE ASSEMBLY REPLACEMENT In general the 350 and 550 gun cables have no ser viceable or maintainable part...

Page 21: ...ough 7 noting the following Route trigger leads per this section Trigger and Accessory Switch Lead Routings see figure D 1 Installation torques for both the incoming connector and gun tube assemblies...

Page 22: ...s that may contribute to the machine symptom Step 3 RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause generally it states to contact your local Lincoln Author...

Page 23: ...act tip size too small for wire diameter used 1 Drive roll is worn or galled 2 Machine s wire feed speed setting is too low 3 Wire is obstructed somewhere along the wire feed path in the gun 4 Low mot...

Page 24: ...t is switched off 6 Fume extraction equipment is non functional 7 Fume extraction equipment has blocked filters 8 Lincoln Miniflex extractor is set to low speed 9 Vacuum hose is partially or completel...

Page 25: ...r welding parameters or technique example ESO is too short 2 Wire may be feeding intermittent ly 1 No gas flow 2 Low gas flow 3 Improper or contaminated shield ing gas 4 Welding in a windy environment...

Page 26: ...sive spatter accumulation on gas cone or gas diffuser 8 Excessive gas leakage from sup ply 10 Gas leakage at gun to feeder connection 1 Defective trigger contacts closed or dirty 2 Defective closed tr...

Page 27: ...NOTES MAGNUM PRO 350 and 550 FUME GUNS...

Page 28: ...NOTES MAGNUM PRO 350 and 550 FUME GUNS...

Page 29: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 30: ...e Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentaci...

Page 31: ...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 Pr...

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