Lincoln Electric LN-25 Service Manual page 73

F-36
DRIVE MOTOR AND GEARBOX REPLACEMENT AND ACCESS TO
5. Remove the 1/2" bolt securing the
electrode cable to the gear box
conductor block. Remove the four
bolts mounting the wire drive
assembly to the bottom of the case.
See Figure F .20.
6. Carefully remove the wire drive
assembly . See Figure F .21.
7. Remove
lockwashers holding the rear end
plate to the gearbox and remove the
rear end plate. Remove the three
drive motor mounting screws, flat
washers and lockwashers (one is
inside the gearbox housing).
8. Carefully remove the drive motor from
the gearbox.
9. Install the replacement drive motor
onto the gearbox and secure with the
three screws, flat washers and
lockwashers. Install the rear end
plate, lockwashers and screws.
TROUBLESHOOTING AND REPAIR
HALL EFFECT MODULE (continued)
the two screws
10. Position the wire drive assembly
inside the case and secure to the
bottom of the case with the four bolts.
Secure the electrode cable to the
conductor block with the 1/2" bolt.
See Figure F .20.
11. For codes 10148 and above, connect
both in-line connectors and position
them behind the mylar insulation. See
and
Figure F .20. For codes 9812 and
below, install the two armature leads
(539 and 541) and the three hall
effect module leads (500, 512 and
555) onto the control board. See
Figure F .7.
12. Install the control box cover and
secure by installing the three screws.
See Figure F .1.
13. Install the wire reel and retaining
collar and close the case door . See
Figure F .1.
LN-25
F-36