Lincoln Electric POWER FEED 10M SINGLE/DUAL SVM172-A Service Manual page 129

F-25
GEAR BOX AND DRIVE MOTOR REMOVAL AND REPLACEMENT
TO REMOVE THE DRIVE MOTOR
FROM THE GEAR BOX:
10. Using the slot head screwdriver,
remove the gear box inspection
cover nearest to the drive motor.
11. Using the 5/16 in. wrench, remove
the motor mounting screw located
inside the gear box.
12. Using the slot head screwdriver,
remove the two screws mounting
the "top" of the motor to the gear
box.
13. Carefully remove the motor from the
gear box assembly. Note motor
lead placement for reassembly.
TO REMOVE THE WIRE DRIVE
ASSEMBLY FROM THE GEAR
BOX:
14. Using the 3/16 in. Allen wrench,
loosen the two Allen type screws at
the bottom of the wire drive unit.
15. Remove lead #67 from the conductor
block.
16. Carefully slide and remove the wire
drive assembly from the gear box
assembly.
REPLACEMENT PROCEDURES
1. Carefully slide the wire drive
assembly and gear box together.
2. Tighten the two Allen type screws at
the bottom of the wire drive unit
using the 3/16 in. Allen wrench.
3. Attach lead #67 to the conductor
block.
4. Carefully slide the drive motor into
the gear box assembly.
position the motor leads so that they
can be properly connected.
TROUBLESHOOTING & REPAIR
Be sure to
POWER FEED 10M SINGLE/DUAL
5. Install the slot head screws that
mount the "top" of the drive motor to
the gear box.
6. Install the mounting screw located
inside the gearbox using the 5/16 in.
wrench.
7. Install the gear box inspection cover
and secure it with slot head screws.
8. Properly place insulation in the bottom
of the wire feeder case.
9. Place the entire gear box, drive motor
and wire drive assembly into the wire
feeder case, aligning the holes in the
plastic base insulator with the
mounting holes in the case.
10. Mount the gear box and drive motor
assembly to the wire feeder case
using the four mounting bolts, lock
washers ad flat washers.
11. Connect the gas hose to the brass
gun connector block.
12. Connect drive motor leads #550 and
#551 to their quick disconnects.
13. Thread plug J4 and associated leads
through the vertical baffle and attach
it to the control board.
ties as necessary.
14. Install the wire feeder cover using
the 3/8 in. nut driver.
F-25
Install cable