Motor SEM
Page 69
MA-100-03
SC-100
REPAIR
The only recommended repair to a motor is cutting the
commutator. If any other components are damaged then
they should be replaced.
Repairing the Commutator
1: The motor must be removed from the vehicle for
this procedure. Refer to
Drive Axle
section for
information on removing the motor.
2: The armature must be removed from the motor
for this procedure. Refer to
Motor Inspection-
Disassembly
section for information on taking
the motor apart.
3: Using a lathe, cut the armature just enough to
remove all grooves, depressions or ridges.
4: Measure the diameter of the commutator. If the
commutator is less than the minimum diameter
specifiedin
Service Limits
, then the motor must
be replaced.
5: Thoroughly clean all copper debris from between
the commutator segments.
6: Measure the commutator undercut depth in
5-places around the commutator. If any one of
the measurements is less than the minimum
undercut depth specified in
Service Limits
, then
the commutator must be undercut.
7: While still in the lathe, smooth the commutator
with fine emery cloth.
This section is one section of a complete service
manual. Before starting any procedure, read all
warnings and instructions that are located in the
Service Guidelines chapter.
WARNING
Properly cut commutator
Undercutting the Commutator
1: Using a small straight cut saw blade, cut the
commutator insulation to the proper depth. Refer
to undercut depth in
Service Limits
.
2:
Once all segments have been properly undercut,
mount the armature in a lathe and smooth the
commutator with fine emery cloth.
3: Inspect the armature for shorts. Refer to Motor
Inspection section for information on testing the
armature.
Note: Copper debris in the undercut area can give
a reading of a shorted armature.
4: Inspect the armature for shorts. Refer to Motor
Inspection section for information on testing the
armature.
Note: Copper debris in the undercut area can give
a reading of a shorted armature.
Summary of Contents for SC-100-24
Page 6: ......
Page 12: ...Page 12 MA 100 03 Introduction SC 100 Notes...
Page 16: ...Service Maintenance Guidelines Page 16 SC 100 MA 100 03 PERIODIC MAINTENANCE CHECKLIST...
Page 18: ...Service Maintenance Guidelines Page 18 SC 100 MA 100 03 Notes...
Page 19: ...Table of Contents Special Tool List Special Tool List Tool List 18 Troubleshooting Guide 20...
Page 24: ...Lubrication Page 24 SC 100 MA 100 03 LUBRICATION AND FLUIDS CHART...
Page 26: ...Lubrication Page 26 SC 100 MA 100 03 Notes...
Page 40: ...Transaxle GT Page 40 SC 100 MA 100 03 Notes...
Page 46: ...Transaxle Page 46 modelnumber manualnumber...
Page 56: ...Steering Page 56 SC 100 MA 100 03 Notes...
Page 64: ...Brakes Page 64 SC 100 MA 100 03 Notes...
Page 80: ...Tires Wheels Page 80 SC 100 MA 100 03 Notes...
Page 102: ...Replacement Parts Page 102 SC 100 MA 100 03 Not available at time of printing BRAKE LINKAGE...
Page 122: ...Replacement Parts Page 122 SC 100 MA 100 03 Not available at time of printing STEERING LINKAGE...
Page 124: ...Replacement Parts Page 124 SC 100 MA 100 03 Not available at time of printing Notes...
Page 125: ......