4-43. TRACTION MOTOR BLOWER BELTS (cont)
Take care that the alinement is not interfered with.
Remove only those bolts in the center assembly
which are necessary to drop out the spacer ring.
Loosen nut (6). Loosen locknut (7) and turn adjusting nut (8) counterclockwise to loosen belt tension.
Remove four self-locking nuts (9), bolt (10), and spacer ring (11). Remove three belts (12) from traction motor
blower pulley and main generator pulley.
Remove belt from between the two parts of the drive coupling.
If one belt is damaged, all belts should be replaced
as a matched set so tension adjustment will be
Feed belts (12) through the two parts of the drive coupling and around main generator pulley, over idler pulley,
and around traction motor blower pulley.
Position spacer ring (11) in drive coupling and install four bolts (10) and self-locking nuts (9).
Turn adjusting nut (8) clockwise until the slack in upper portions of belts is 1 inch (25.4 mm). Tighten locknut (7)
and nut (6).
Position the removed portions of guards (5) and install screws (4), flat washers (3), lockwashers (2), and nuts (1).