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| INSTALLATION | |||||
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| Tools required: |
| PROCEDURE TO INSTALL DRIVE ROLLS | |||
| • 1/4" hex key wrench. |
| AND WIRE GUIDES |
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| 1. Turn power off at the welding power source. |
| WARNING |
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| 2. Remove the welding wire from the wire drive. |
| • Turn the input power OFF at the weld- | |||
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| ing power source before installation | ||
| 3. Remove the thumb screw from the wire drive. |
| or changing drive rolls and/or guides. | |||
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| • Do not touch electrically live parts. | ||
| 4. Remove the welding gun from the wire drive. | • When inching with the gun trigger, electrode and | ||||
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| drive mechanism are "hot" to work and ground | |||
| 5. Loosen the socket head cap screw that holds the | and could remain energized several seconds | ||||
| connector bar against the gun bushing. |
| after the gun trigger is released. |
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| IMPORTANT: |
| • Do not operate with covers, panels or guards | |||
| Do not attempt to completely remove the socket | removed or open. |
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| head cap screw. |
| • Only qualified personnel should perform mainte- | |||
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| nance work. |
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| 6. Remove the outer wire guide, and push the gun | |||||
| bushing out of the wire drive. Because of the pre- | 1. Turn power off at the welding power source. |
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| cision fit, light tapping may be required to remove |
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| the gun bushing. |
| 2. Release the idle roll pressure arm. |
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| 7. Disconnect the shielding gas hose from the gun | 3. Remove the outer wire guide by turning the knurled | ||||
| bushing, if required. |
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| thumbscrews | ||
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| from the feed plate. See Figure A.2. |
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| 8. Connect the shielding gas hose to the new gun |
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| bushing, if required. |
| 4. Rotate the triangular lock and remove the drive rolls. | |||
| 9. Rotate the gun bushing until the thumb screw hole | 5. Remove the inner wire guide |
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| aligns with the thumb screw hole in the feed plate. |
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| Slide the gun receiver bushing into the wire drive | 6. Insert the new inner wire guide, groove side out, | ||||
| and verify the thumb screw holes are aligned. |
| over the two locating pins in the feed plate. |
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10. Tighten the socket head cap screw. |
| 7. Install a drive roll on each hub assembly secure with | ||||
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| the triangular lock. |
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11. Insert the welding gun into the gun bushing and | 8. Install the outer wire guide by aligning it with the pins | |||||
| tighten the thumb screw. |
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| and tightening the knurled thumbscrews. |
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NOTE: Some gun bushings do not require the use of
the thumb screw.9. Close the idle arm and engage the idle roll pressure arm. Adjust the pressure appropriately.
FIGURE A.1
THUMB SCREW | FIGURE A.2 |
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GUN RECEIVER BUSHING
OUTER WIRE GUIDE
CONNECTOR BLOCK
SOCKET HEAD
CAP SCREW
LOOSEN TIGHTEN
