PS S1.2 1700
001 OE35
Version no T-code
F-code Section C-code
Drive Motor 36 Volt
78
Service Manual 1997-10-21
1. Component Repair
1.1.
Disassembly
1. Scribe or center punch locating marks in commutator
end head and the frame. Although locating marks are
not always necessary because of locating pins in
some motors, they can save a lot of time when the
motor does not have locating pins.
2. Remove the commutator end head retaining screws.
Most motors have a slip fit bearing at the commutator
end, and the end head can be removed with very little
trouble.
3. Remove brush holding plate screws and remove plate
to replace brushes. Remove each brush from brush
holder and inspect brushes and commutator for worn
condition and uneven wear.
4. The brush springs may be checked at this time for
proper tension.
5. Separate the armature and drive end head as an
assembly from the frame and field coil/stator.
6. Separate the armature from the drive end head. This
operation is usually done by pressing the armature out
of the drive end bearing. Remove with puller.
When a puller is used, protect the end of the armature
shaft with a nut or a thick flat washer.
7. Remove bearing from armature or end head.
NOTE!
If the shaft, coupling, or spline is damaged
when removing the end head, the armature
or the drive spline usually has to be
replaced. Use caution, and
DO NOT
damage the armature.
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