Lincoln Electric POWER FEED 10M SINGLE/DUAL SVM172-A Service Manual page 128

F-24
TROUBLESHOOTING AND REPAIR
GEAR BOX AND DRIVE MOTOR REMOVAL AND REPLACEMENT
Figure F.4- GEAR BOX AND DRIVE MOTOR REMOVAL AND REPLACEMENT
#551
(BLACK)
TEST PROCEDURE
1. Remove the input power to the wire
drive unit.
2. Using the 3/8 in. nutdriver, remove the
case cover.
3. Locate and remove plug J84 from the
control board. 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 screwdiver,
remove the #67 lead from the
conductor block.
J84
DRIVE
MOTOR
GEAR BOX
#550
(WHITE)
INSULATION
GAS
FITTING
POWER FEED 10M SINGLE/DUAL
MOUNTING BOLT
INSPECTION COVER
ASSEMBLY
7. Using the needlenose plers,
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.
F-24
WIRE
DRIVE