INSTALLATION |
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CHANGING THE DRIVE MOTOR GEAR RATIO
WARNING
•Turn off input power at the welding power source before installation or changing drive roll and/or wire guides.
•Do not touch electrically live parts such as the wire drive or internal wiring.
•When feeding with the gun trigger, the electrode and wire drive mechanism are "hot" to work and ground and could remain energized several sec- onds after the gun trigger is released.
•Only qualified personnel should perform this operation.
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Extra |
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Feed | Torque |
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Gearing |
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| Normal |
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| Speed |
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| Gearing |
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| WFS |
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| 400 | 800 |
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Extra Torque
Gearing
Normal Speed
Gearing
Tools required:
•1/4" hex key wrench
•3/4" open end wrench
•9/16" socket and ratchet wrench
•7/16" nut driver
•5/16" nut driver
•Phillips screw driver
1. Remove the spool of electrode from the wire feeder.
2.Loosen the thumb screw at the wire drive and remove the welding gun.
3.Remove the outer wire guide, drive rolls and inner wire guide.
4.Use a 7/16" nut driver to remove the gear cover.
5.Use 9/16" socket and ratchet wrench to remove the lower drive roll hub retainer. Remove the lower drive roll hub.
6.With a Phillips screwdriver, remove the screw, washer and
collar holding the pinion gear. Remove the pinion gear.
7. Remove the busbar by unscrewing the bolt using a 3/4" open end wrench.
8. With a 1/4" hex key wrench, loosen the socket head cap screw securing the gun bushing. Remove the gun bushing from the wire drive.
9. With a 5/16" nut driver remove the five screws securing the wire drive panel. Lift out the wire drive panel and discon- nect the molex connections.
10. Using a 5/16" nut drive, remove the four screws securing the cover.
11. With a Phillips screwdriver, remove the three screws and lock washers securing the motor. Remove the motor.
12. Place the motor in the new position.
13. Assemble the three screws and lock washer holding the
wire drive motor.
14. Assemble the molex connections and place the wire drive assembly inside the wire feeder. Route the gas hose through the opening in the wire drive panel.
15. Move DIP switch #8 on the Feed head board to the appropriate position.
Gear Select | DIP Switch #8 Setting | Range |
Normal Speed | ON | 50 – 800 ipm |
Extra Torque | OFF | 30 – 400 ipm |
16. Place the gun bushing in the wire drive and align the threaded hole in the gun bushing with the hole in the feed plate. With a 1/4" hex key, tighten the socket head cap screw to secure the bushing in the wire drive.
17. Reassemble the busbar and tighten the mounting hard- ware with a 3/4" open end wrench.
18. Place the new gear on the motor shaft. Secure the gear to the motor shaft with the collar, washer and screw.
19. Reassemble the lower drive roll hub and lower drive roll hub retainer.
20. Reassemble the gear cover.
21. Reassemble the inner wire guide, drive rolls and outer wire guide.
22. Place the welding gun into the gun bushing and secure with the thumb screw.
