Troubleshooting and repair, Procedure – Lincoln Electric POWER FEED SVM185-A User Manual

Page 94

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THUMB

THUMB

SCREW

SCREW

CONDUIT

CONDUIT

ELECTRODE

ELECTRODE

CABLE

CABLE

GUN

GUN

BUSHING

BUSHING

WATER

WATER

HOSES

HOSES

WATER

WATER

HOSE

HOSE

FIGURE F.4 – GEAR BOX AND DRIVE MOTOR REMOVAL AND REPLACEMENT

GEAR BOX REMOVAL AND DRIVE MOTOR

REMOVAL AND REPLACEMENT PROCEDURE (continued)

TROUBLESHOOTING AND REPAIR

F-20

F-20

POWER FEED® 25M

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PROCEDURE

1. Remove input power to wire feed unit.

2. Using the 3/8 in. nutdriver, remove the

case cover.

3. Locate and remove plug J84 from the

feedhead - control board, located under
control box cover Refer to figure F.4.

4. Thread plug J84 and associated leads

through the vertical baffle. Cut any
necessary cable ties.

5. Locate and disconnect the motor leads

(#551 and #550) at the quick connects.
Cut any necessary cable ties.

6. Using the Phillips head screwdriver, remove

the #67 lead from the conductor block.

7. Using the needlenose pliers, disconnect the

gas hose from the brass gun connector
block.

8. Using the 7/16 in. socket wrench, remove

the four mounting bolts, lock washers, and
flat washers from the plastic base insulator.

9. Carefully slide and remove the entire gear

box, drive motor, and wire drive assembly
from the wire feeder case. Note insulation
placement for reassembly.

Control Box Cover

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