Profax 400 AMP AMT User Manual

Download

Operating &

Parts Manual

Standard Features

• Totally Rebuildable

• Economical Replacement Components

• Wide Variety of Wire Sizes

• Extra Flexible Cable

• Adapter Kits Availability for Most Models of Feeders

Description

The 400 Amp Amt Mig Gun is available in 2’, 4’, 6’, 8’, 10’, 12’, 15’, 20’ and 25’ cable assemblies and is capable of running .035 to 5/64” wire sizes. Please consult, the parts list to order the proper components for your wire size.

Special length guns available on request.

IMPORTANT - PROTECT YOURSELF AND OTHERS!

Remember safety depends on you. Do not install, operate or repair this equipment without reading and understanding the installation instructions along with the Warnings and Safeguards for Welding and Cutting Operation form WSWC594.

400 AMP AMT MIG GUN400 AMP AMT MIG GUN

00014OG080509

Made in U.S.A.

Parts BreakdownParts Breakdown

® ®

Parts Breakdown

AL-300-25

7/32” hex wrench

44-25

5/64” hex wrench

Optional for using

16S series tips

optional front end

400 Amp AMT Mig Guns

PART NO. DESCRIPTION

64AMT-174 400 amp body w/plug - for use with 12” units. 64SAMT-174 400 amp short body w/plug - for use with 8-3/4” units. 64AMTN 400 amp body w/nipple - for use with cable hose type units. 64SAMTN 400 amp short body w/nipple

Complete 400 Amp AMT Mig Gun Packages

2’ 4’ 6’ 8’ 10’ 12’ 15’ 20’ 25’

AMT400-3545-2 AMT400-3545-4 AMT400-3545-6 AM400-3545-8 AMT400-3545-10 AMT400-3545-12 AMT400-3545-15 AMT400-3545-20 AMT400-3545-25

AMT400-116-2 AMT400-116-4 AMT400-116-6 AMT400-116-8 AMT400-116-10 AMT400-116-12 AMT400-116-15 AMT400-116-20 AMT400-116-25

AMT400-564-2 AMT400-564-4 AMT400-564-6 AMT400-564-8 AMT400-564-10 AMT400-564-12 AMT400-564-15 AMT400-564-20 --For complete “AMT” mig guns just specify amperage, wire size, and length. Example: AMT-400-3545-15

Parts ListParts List

Parts List

NO. PART NO. DESCRIPTION

1. PX24A50 Nozzle 1/2”, adj. use w/ 34A PX24A62 Nozzle 5/8”, adj. use w/ 34A PX24A75 Nozzle 3/4”, adj. use w/ 34A PX24A50SS Nozzle 1/2”, short stop, adj. use w/34A PX24A62SS Nozzle 5/8”, short stop, adj. use w/34A PX24A75SS Nozzle 3/4”, short stop, adj. use w/34A PX24AH50 Nozzle 1/2”, heavy duty, adj. use w/34A PX24AH62 Nozzle 5/8”, heavy duty, adj. use w/34A PX24AH75 Nozzle 3/4”, heavy duty, adj. use w/34A

2. PX23-37 Nozzle 3/8”, self insulated PX23-50 Nozzle 1/2”, self insulated PX23-62 Nozzle 5/8”, self insulated PX23-75 Nozzle 3/4”, self insulated PX23H50 Nozzle 1/2”, heavy duty, self insulated PX23H62 Nozzle 5/8”, heavy duty, self insulated PX23-37F Nozzle 3/8”, self insulated, flush PX23-50F Nozzle 1/2”, self insulated, flush PX23-62F Nozzle 5/8”, self insulated, flush PX23-75F Nozzle 3/4”, self insulated, flush PX23T37 Nozzle 3/8”, self insulated, tapered

3. PX24CT50F Nozzle 1/2”, use w/34CT PX24CT62F Nozzle 5/8”, use w/34CT PX24CT75F Nozzle 3/4”, use w/34CT PX24CT37S Nozzle 3/8”, use w/34CT PX24CT50S Nozzle 1/2”, use w/34CT PX24CT62S Nozzle 5/8”, use w/34CT (Std.) PX24CT75S Nozzle 3/4”, use w/34CT

4. PX34A Insulator

5. PX34CT Insulator w/coarse thread nozzle (Std.)

5a. PX34CT-HT Insulator, high temp

6. PX14-23 Contact tip .023 PX14-30 Contact tip .030 PX14-35 Contact tip .035 PX14-40 Contact tip .040 PX14-45 Contact tip .045 PX14-52 Contact tip .052 PX14-116 Contact tip 1/16” PX14-564 Contact tip 5/64” PX14A364 Contact tip 3/64”(for aluminum) PX14A116 Contact tip 1/16”(for aluminum) PX14H35 Contact tip .035, heavy duty PX14H40 Contact tip .040, heavy duty PX14H45 Contact tip .045, heavy duty PX14H52 Contact tip .052, heavy duty PX14H116 Contact tip 1/16”, heavy duty PX14H564 Contact tip 5/64”, heavy duty PX14AH364 Contact tip 3/64”, heavy duty (for aluminum) PX14AH116 Contact tip 1/16”, heavy duty (for aluminum) PX14HT35 Contact Tip .035 PX14HT40 Contact Tip .040 PX14HT45 Contact Tip .045 PX14HT52 Contact Tip .052 PX14HT116 Contact Tip 1/16” PX14HT564 Contact Tip 5/64” PX14T23 Tapered contact tip .023 PX14T30 Tapered contact tip .030 PX14T35 Tapered contact tip .035 PX14T40 Contact tip .040 PX14T45 Contact tip .045 PX14T52 Contact tip .052 PX14T116 Contact tip 1/16”

NO. PART NO. DESCRIPTION

7. PX54A Gas diffuser PX54C Gas diffuser, copper

7a. PX54A16 Gas diffuser for 16S series tips

8. PX44C Set screw for gas diffuser and conduit

9. PX54AMT 400 amp head

9a. PX54TAMT 400 amp head for gooseneck - optional 9b. PX405-22 Gooseneck 22° optional

PX405-45 Gooseneck 45° optional PX405-60 Gooseneck 60° optional PX405-180 Gooseneck 180° optional

10. PX45IN Insulator (2 req’d)

11. PX45OTS Outer tube short

12. PX45ITPS Short internal tube (plug)

13. PX45OTL Outer tube long

14. PX45ITPL Long internal tube (plug)

15. PX174AMT 400 amp plug

16. PX224 O-ring

17. PX64ITNL Internal tube long (w/18-480 snap ring)

18. PX64ITNS Internal tube short (w/18-480 snap ring)

19. PX64N Nipple

20. PX114 Separator

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

22. PX104 Cable connector block assembly

23. PX125FM Binder screws for connector block

24. PX185 Connector block w/binder screws

25. PX134-14 Clamp - connector block

26. PXR185-SC Screws for housing (4)

27. PXR185-H Housing

28. PXR185-S Spring

29. PX144-6S Spring strain relief

30. PX400-10 10’ replacement cable assembly PX400-12 12’ replacement cable assembly PX400-15 15’ replacement cable assembly PX400-20 20’ replacement cable assembly PX400-25 25’ replacement cable assembly PX400K Cable, bulk (per foot) PX400CK Cloth wrapped cable, bulk (per foot) for guns longer than 15’

31. PXR174-UA Standard connector plug w/64N PXR174-UAG Connector plug with gas hole w/64N

32. PXR174-* Connector, *(E)Esab (L-Tec), *(H)Hobart ,

*(L)Lincoln , *(M)Miller , *(T)Std.

33. PX44-3545-1 1’ wire conduit assy. used with .035-.045 dia. wire PX44-116-1 1’ wire conduit assy. used with 1/16” dia. wire PX44-564-1 1’ wire conduit assy. used with 5/64” dia. wire

PX44-3545-15 15’ wire conduit assy. used with .035-.045 dia. wire PX44-116-15 15’ wire conduit assy. used with 1/16” dia. wire PX44-564-15 15’ wire conduit assy. used with 5/64” dia. wire PX44N-3545-15 15’ nylon lined conduit assy. used with .035-3/64”

dia. wire, recommended for aluminum wire

PX44N-116-15 15’ nylon lined conduit assy. used with 1/16”

dia. wire, recommended for aluminum wire

PX44-3545-25 25’ wire conduit assy. used with .035-.045 dia. wire PX44-116-25 25’ wire conduit assy. used with 1/16” dia. wire

34. PX24PAMT Barrel w/rack 24 pitch (Optional) PX32PAMT Barrel w/rack 32 pitch (Optional)

®®

Electric shock can cause INJURY or DEATH.

IMPORTANT- Disconnect all electrical power to the welding power source and wire feeder before attempting installation of this unit.

Your PROFAX 400 Amp AMT Mig Gun comes standard with a Tweco style rear connector. Adapter Kits for most domestic style feeders as well as a Euro-Quick connector for European style feeders are also available. Please note that non GMA wire feeders will require a gas solenoid valve.

INSTALLATION

1.) 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.

2.) Make sure that the adapter, the feeder outgoing guide, and the drive rolls are correct for the type and size of wire to be used.

3.) Lay the PROFAX AMT Mig Gun out in a straight line.

4.) 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.

5.) Remove the nozzle and contact tip from the AMT Mig Gun.

6.) Relieve tension and disengage drive rolls. Feed wire by hand through drive rolls, outgoing guide and adapter plug until wire is at least one too two feet inside of PROFAX AMT Mig Gun.

7.) Reset drive rolls and apply proper tension. Keep gun in a straight position. Continue to feed wire through the gun by using the inch button on the feeder or gun trigger.

8.) Install the nozzle and contact tip back onto the AMT Mig Gun.

9.) 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 good quality welding wires that are clean and rust free.

2.) Keep the cable assembly as straight as possible, and do not kink or pull cable around sharp corners or allow carts or

trucks to run over the cable assembly.

3.) Make sure the contact tip is tightly screwed into the gas diffuser at all times. Frequently clean the contact tip and nozzle.

The use of a good anti-spatter compound will increase tip and nozzle life and will make spatter removal easier. If the contact tip becomes deformed, arced or worn at the end, replace it immediately.

4.)On a regular basis, check all gun, cable and gas hose connections. Make sure they are clean and tight.

BY FOLLOWING THESE SIMPLE GUIDELINES YOU WILL

EXTEND THE LIFE OF YOUR PROFAX AMT MIG-GUN.

Profax 400 AMP AMT User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual