Lincoln Electric SVM170-A F-43, Troubleshooting And Repair, Procedure, Return to Section TOC

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F-43	TROUBLESHOOTING AND REPAIR	F-43
	WIRE DRIVE ASSEMBLY REMOVAL AND REPLACEMENT (continued)

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PROCEDURE

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 assem- bly. 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 counterclockwise to release the tension on the idle arm.

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 assem- bly.

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 secur- ing the motor/gearbox assembly to the wire drive assembly.

15.Grasp the motor/gearbox assembly and wiggle 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 washers 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.

POWER MIG 255C