INSTALLATION | ||
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PROCEDURE FOR CHANGING DRIVE AND IDLE ROLL SETS
(See Figure A.4 )
WARNING
ELECTRIC SHOCK can kill.
•Turn the input power OFF at the welding power source before instal- lation or changing drive rolls and/or guides.
•Do not touch electrically live parts.
•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.
•Only qualified personnel should perform mainte- nance work.
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1.Turn power off at the welding power source.
2.Release the idle roll pressure arm.
3.Remove the outer wire guide by turning the knurled thumbscrews
4.Rotate the triangular lock and remove the drive
WIRE DRIVE CONFIGURATION
(See Figure A.5)
Changing the Gun Receiver Bushing
WARNING
ELECTRIC SHOCK can kill.
•Turn the input power OFF at the dis- connect switch or fuse box before attempting to connect or disconnect input power lines, output cables or control cables.
•Only qualified personnel should perform this installation.
Tools required:
• 1/4" hex key wrench
Note: Some gun bushings do not require the use of the thumb screw.
1.Turn power off at the welding power source.
2.Remove the welding wire from the wire drive.
3.Remove the thumb screw from the wire drive.
4.Remove the welding gun from the wire drive.
5.Loosen the socket head cap screw that holds the connector bar against the gun bushing. Important: Do not attempt to completely remove the socket head cap screw.
6.Remove the outer wire guide, and push the gun bushing out of the wire drive. Because of the preci- sion fit, light tapping may be required to remove the gun bushing.
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rolls.FIGURE A.4
5. Remove the inner wire guide. | FIGURE A.5 |
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6.Insert the new inner wire guide, groove side out, over the two locating pins in the feed plate.
7. | Install a drive roll on each hub assembly secure | THUMB SCREW |
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| with the triangular lock. |
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8. | Install the outer wire guide by aligning it with the | GUN RECEIVER BUSHING |
| pins and tightening the knurled thumbscrews. |
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9. | Close the idle arm and engage the idle roll pressure | OUTER WIRE GUIDE |
| arm. Adjust the pressure appropriately. |
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CONNECTOR BLOCK
SOCKET HEAD
CAP SCREW
LOOSEN TIGHTEN
