20
Service and Repair Manual
Model 900/950/990
Dismantling
the armature
assembly (All
models)
1. Fit the pinion nut service tool to the pinion (145).
CAUTION: During the following operation take
care to ensure the fan (138) is not damaged by the
vice jaws.
2. Mount the armature assembly and pinion in a
vice, between two pieces of wood, with the pinion
nut uppermost. Using a suitable open-ended
spanner on the pinion nut unscrew the pinion
(145).
3. Pull the pinion bearing cartridge (175) from the
motor shaft. Remove the clip (179) and bearing
(141).
145
137
175
138
141
179
Fig. 22