Drive Motor 36 Volt
PS S1.2 1700
F-code Section C-code
Version no T-code
001 OE35
© BT Products
79
Service Manual 1997-10-21
2. Inspection and Troubleshooting
After the motor components have been thoroughly cleaned
and dried, they should be inspected for the following:
2.1. Drive End Head
1. Check bearing recess for any signs of wear.
2. Check mounting holes for any stripped or crossed
threads or broken studs.
2.2. Commutator End Head
1. Check bearing recess for any signs of wear.
2. Check brush holder insulation for cracks or any signs
of burning.
3. Check brush holders and springs for wear.
2.3. Bearings
1. Check bearings by turning them with your fingers. Feel
for binding or gritty effects and excessive looseness or
wobble. A good bearing should also have a small
amount of drag or stiffness caused by the lubrication
but should turn smoothly.
2. If the bearing turns very freely, it should be replaced.
Bearings should also be changed, if worn out,
damaged or removed from armature shaft.
Ball bearings that have been pulled off shafts, pressed
out of end heads, or side-loaded in such a way as to
apply pressure on the balls and races, must be
replaced. Although the bearing may appear or feel
good, the bearing races have been brinelled and will
fail within a relatively short period of service.
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