Profax 500 AMP MIG User Manual

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Made in U.S.A.

P.O. Box 898 • Pearland, TX 77588-0898

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PART NO. DESCRIPTION

500-3545-10 10’ in length, .035-.045 wire size (use w/45-3545-15 liner)
500-052-10 10’ in length, .052 wire size (use w/45-116-15 liner)

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500-116-10 10’ in length, 1/16” wire size (use w/45-116-15 liner)
500-564-10 10’ in length, 5/64” wire size (use w/45-564-15 liner)
500-332-10 10’ in length, 3/32” wire size (use w/45-332-15 liner)
500-764-10 10’ in length, 7/64” wire size (use w/45-764-15 liner)

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500-3545-12 12’ in length, .035-.045 wire size (use w/45-3545-15 liner)
500-052-12 12’ in length, .052 wire size (use w/45-116-15 liner)
500-116-12 12’ in length, 1/16” wire size (use w/45-116-15 liner)

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500-564-12 12’ in length, 5/64” wire size (use w/45-564-15 liner)
500-332-12 12’ in length, 3/32” wire size (use w/45-332-15 liner)
500-764-12 12’ in length, 7/64” wire size (use w/45-764-15 liner)
500-3545-15 15’ in length, .035-.045 wire size (use w/45-3545-15 liner)

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Complete Mig Gun Packages

PART NO. DESCRIPTION

500-052-15 15’ in length, .052 wire size (use w/45-116-15 liner)
500-116-15 15’ in length, 1/16” wire size (use w/45-116-15 liner)
500-564-15 15’ in length, 5/64” wire size (use w/45-564-15 liner)
500-332-15 15’ in length, 3/32” wire size (use w/45-332-15 liner)
500-764-15 15’ in length, 7/64” wire size (use w/45-764-15 liner)
500-3545-20 20’ in length, .035-.045 wire size (use w/45-3545-25)
500-052-20 20’ in length, .052 wire size (use w/45-116-25)
500-116-20 20’ in length, 1/16” wire size (use w/45-116-25)
500-564-20 20’ in length, 5/64” wire size (use w/45-564-25)
500-3545-25 25’ in length, .035-.045 wire size (use w/45-3545-25)
500-052-25 25’ in length, .052 wire size (use w/45-116-25)
500-116-25 25’ in length, 1/16” wire size (use w/45-116-25)
500-564-25 25’ in length, 5/64” wire size (use w/45-564-25)

Longer length guns available upon request.

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500 Amp Mig Gun Parts List

NO. PROFAX DESCRIPTION

1. PX25CT-50 Nozzle 1/2”, coarse thread
PX25CT-62 Nozzle 5/8”, coarse thread (std.)
PX25CT-75 Nozzle 3/4”, coarse thread

1a. PX25I-62 Nozzle 5/8”, self insulated

PX25I-75 Nozzle 3/4”, self insulated

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2. PX35CT Insulator, use w/coarse

thread nozzle (std.)

2a. PX35CT-HT Insulator, high temp

3. PX15H35 Contact tip .035
PX15H45 Contact tip .045
PX15H52 Contact tip .052
PX15H116 Contact tip 1/16”
PX15H564 Contact tip 5/64”
PX15H332 Contact tip 3/32”
PX15H764 Contact tip 7/64”
PX15AH364 Contact tip 3/64” (for aluminum)
PX15AH116 Contact tip 1/16” (for aluminum)
PX15HFC35 Contact tip .035
PX15HFC45 Contact tip .045
PX15HFC52 Contact tip .052
PX15HFC116 Contact tip 1/16”
PX15HFC564 Contact tip 5/64”
PX15HFC332 Contact tip 3/32”
PX15HFC764 Contact tip 7/64”
PX15AHFC364 Contact tip 3/64” (for aluminum)
PX15AHFC116 Contact tip 1/16” (for aluminum)

4. PX55 Gas diffuser

(use w/45-564 & 45N-116)

PX55SW Gas diffuser (use w/45-3545,

45-116, 45N-3545)

PX55H Gas diffuser

(use w/45H-332, & 45H-764)

5. PX44C Set screw for gas diffuser/conduit

6. PX65-45J Jacketed conductor tube 45°
PX65-60J Jacketed conductor tube 60°

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PX65-60-3RJ Jacketed conductor tube 60°, 3” R.
PX65-180J Jacketed conductor tube 180°
PX65-45 Conductor tube 45°
PX65-60 Conductor tube 60° (Std.)
PX65-60-3R Conductor tube 60°, 3” R.

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PX65-80 Conductor tube 80°
PX65-180 Conductor tube 180°

6a. PX75 Replacement neoprene insulator

7. PX65N Nipple

8. PX114 Separator

9. PXA-532-24 9/16-18 ball point screws

10. PX104 Cable connector block assembly

NO. PROFAX DESCRIPTION

11. PX154 Hanger

12. PX85 Handle w/binder screws

13. PX124FM Binder screws for handle

14. PX134-15 Clamp - handle

15. PXAL-300-25 7/32” hex wrench

16. PX44-25 5/64” hex wrench

17. PX94C Switch contacts w/screws

18. PX94R Trigger switch assembly

19. PX145-6 Hose support - handle

20. PX500-10 10’ replacement cable assembly
PX500-12 12’ replacement cable assembly
PX500-15 15’ replacement cable assembly
PX500-20 20’ replacement cable assembly
PX500-25 25’ replacement cable assembly
PX500K Cable, bulk (per foot)
PX500CK Cloth wrapped cable, bulk (per

foot) for gun lengths over 15’.

20a.PX244 Terminal

21. PXR185-S Spring

22. PX134-15 Clamp - connector block

23. PX194 Connector tab assembly

24. PXR185-H Housing

25. PXR185-SC Screws for housing (4)

26. PXR175-UA Standard connector plug w/65N
PXR175-UAG Connector plug w/gas hole w/65N

27. PX44C Set screw for conduit 8-32

28. PXR175-L Connector, Lincoln
PXR175-M Connector, Miller (w/175M-N nipple)

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PXR175-T Connector, standard

28a PX225 O-ring

29. PX45-3545-15 15’ wire conduit assembly used

w/.035-.045 dia. wire

PX45-116-15 15’ wire conduit assembly used

w/1/16” dia. wire

PX45-564-15 15’ wire conduit assembly used

w/5/64” dia. wire

PX45H-332-15 15’ wire conduit assembly used

w/3/32” dia. wire

PX45H-764-15 15’ wire conduit assembly used

w/7/64” dia. wire

PX45-3545-25 25’ wire conduit assembly used

w/.035-.045 dia. wire

PX45-116-25 25’ wire conduit assembly used

w/1/16” dia. wire

PX45-564-25 25’ wire conduit assembly used

w/5/64” dia. wire

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The Platinum Compact 500 Amp Mig Gun

Electric shock can cause INJURY or DEATH.

IMPORTANT- Be sure that the power source and feeder are in the off position. Make sure input power to the power source

is disconnected at the electrical breaker box before attempting installation of this unit.

Your new PROFAX 500 Amp Mig-Gun is furnished with a rear connection that requires a 6TAK-1 or 6LAK-1 Adapter Kit for
installation on the wire feeder. The PROFAX 500 Amp Mig-Gun can also be used with any feeder equipped with a TWECO #5 or
#6 Adapter Kit. Non GMA model wire feeders require an optional gas solenoid valve. The PROFAX 500 Amp Mig-Gun is also
available with Euro-Quick rear connections, for easy installation with the European style feeders. Simply plug the rear connection
of the gun into the female receptacle on the wire feeder and tighten the plastic retaining nut.

Make sure that the gun is equipped with the proper contact tip and conduit for the type and size of wire to be used before
installation. Make sure that the adapter, the feeder outgoing guide, and the drive rolls are correct for the type and sizes of wire to
be used.

All references to original manufacturer’s equipment numbers, and/or trade names or trademarks, are for identification and

convenience only. The trademarks and trade names are the property of their respective owners.

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INSTALLATION

1.) Lay the PROFAX Mig-Gun out in a straight line.

2.) Push the brass connector end of the gun cable into the brass adapter on the outgoing side of feeder wire drive until it is fully

seated. Secure the cable

with the set or hand screw in the adapter.

3.) Install the control plug assembly into mating socket on gun cable and into trigger circuit receptacle on feeder.

4.) Relieve tension and disengage drive rolls. Feed wire by hand through drive rolls, outgoing guide and adapter plug until wire is

at least one to two feet

inside of PROFAX Mig-Gun.

5.) Reset drive rolls and apply proper tension. Keep gun in a straight position. Continue to feed wire through gun and contact

tip by using inch button on

feeder or gun trigger.

6.) When you activate gun trigger, the contact tip and welding wire protruding from tip are electrically "HOT". Set the power

source to the proper settings for

wire size and welding application to be used. Make sure the shielding gas supply is adjusted to the proper flow rate. Gun is

now ready for operation.

GUIDELINES TO AVOID WIRE FEEDING PROBLEMS AND

TO KEEP YOUR MIG-GUN OPERATING SMOOTHLY

1.) Use only clean rust free good quality welding wire.

2.) Keep cable assembly as straight as possible, do not kink or pull cable around sharp corners or allow cart wheels or trucks to

run over cables.

3.) Make sure contact tip is tightly screwed into gas diffuser at all times. Frequently clean contact tip and nozzles. The use of a

good anti-spatter

compound will increase tip and nozzle life and make spatter removal easier. If contact tip becomes deformed or arced at the

end, replace immediately.

4.) Maintain and make certain all gun connections are secured and electrical connections are tight. Check all gas hose

connections on a regular basis to

make sure no leakage or loss of flow occurs.

BY FOLLOWING THESE SIMPLE GUIDELINES YOU WILL

EXTEND THE LIFE OF YOUR NEW PROFAX MIG-GUN.

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