Lincoln Electric 11519 Service Manual page 89

F-43
WIRE DRIVE ASSEMBLY REMOVAL AND REPLACEMENT (continued)
1. Disconnect main input power to the machine.
2. Remove the wire gun and wire.
3. Lift the wire drive door to gain access to the
wire drive assembly.
4. Lift the tool tray door to allow access to the
tool tray.
5. Use a 5/16 in. nutdriver and remove the tool
tray to gain access to the motor/gearbox
assembly.
6. Disconnect the wire connectors J13 and J12
to the motor/gearbox assembly. See Wiring
Diagram.
7. Use a 3/4 in. wrench and remove the flange
nut and positive lead from the wire drive
assembly. See Figure F.12.
8. Use pliers to remove the hose clamp and flex
hose from the wire drive assembly.
9. Remove the outer guide assembly from the
wire drive assembly by loosening the thumb
screws until the outer guide can be removed.
10. Rotate the adjustment arm assembly counter-
clockwise to release the tension on the idle
arm.
TROUBLESHOOTING AND REPAIR
Power MIG® 255XT
11. Swing the idle arm up and away from the wire
drive assembly.
12. Use a screwdriver and remove the round head
screw, lock washer, and flat washer securing
the molded drive roll shaft assembly to the
wire drive assembly.
13. Remove the molded drive roll shaft assembly
and the rest of the outer guide assembly from
the wire drive assembly.
14. Use a screwdriver and remove the pan head
screws and lock washers securing the
motor/gearbox assembly to the wire drive
assembly.
15. Grasp the motor/gearbox assembly and wig-
gle the motor/gearbox assembly gently back
and forth until it separates from the wire drive
assembly.
16. Use a 7/16 in. nutdriver to remove the hex
head cap screws, lock washers, and flat wash-
ers securing the wire drive assembly to the
wire drive compartment.
17. Remove the wire drive assembly from the wire
drive compartment.
18. Reassemble the wire drive assembly in the
reverse order.
F-43