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Motor SEM
Page 71
MT-316-06
TT-316-36
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:
First measure the diameter of the commutator. If the commutator is close to minimum diameter specified in
Service Limits at the end of this section, then it should be replaced.
2: Using a lathe, cut the armature just enough to remove all grooves, depressions or ridges.
3:
Measure the diameter of the commutator. If the commutator is less than the minimum diameter specified in
Service Limits at the end of this section, then the it should be replaced.
4: Thoroughly clean all copper debris from between the commutator segments.
5: 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 (see below).
6:
While still in the lathe, smooth the commutator with fine emery cloth and reinspect for debris between the
commutator segments.
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 at the end of this section.
2:
Once all segments have been properly undercut, mount the armature in a lathe and smooth the commutator
with fine emery cloth.
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.
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
Summary of Contents for TT-316-36
Page 6: ......
Page 12: ...Page 12 MT 316 06 Introduction TT 316 36 Notes...
Page 16: ...Service Maintenance Guidelines Page 16 TT 316 36 MT 316 06 Notes...
Page 23: ...Lubrication PM Page 23 MT 316 06 TT 316 36 LUBRICATION DIAGRAM SD Transaxle...
Page 30: ...Front Axle Page 30 TT 316 36 MT 316 06 Notes...
Page 47: ...Transaxle Page 47 MT 316 06 TT 316 36...
Page 52: ...Steering Page 52 TT 316 36 MT 316 06...
Page 78: ...Tires Wheels Page 78 TT 316 36 MT 316 06 Notes...
Page 100: ...ILLUSTRATED PARTS Page 100 Model TT 316 36 MT 316 03 AXLE FRONT AXLE REAR...
Page 102: ...ILLUSTRATED PARTS Page 102 Model TT 316 36 MT 316 03 BRAKE FRONT...
Page 104: ...ILLUSTRATED PARTS Page 104 Model TT 316 36 MT 316 03 BRAKES REAR...
Page 106: ...ILLUSTRATED PARTS Page 106 Model TT 316 36 MT 316 03 BRAKE LINES...
Page 112: ...ILLUSTRATED PARTS Page 112 Model TT 316 36 MT 316 03 ELECTRICAL MISCELLANEOUS...
Page 114: ...ILLUSTRATED PARTS Page 114 Model TT 316 36 MT 316 03 FRAME AND BODY MISC...
Page 118: ...ILLUSTRATED PARTS Page 118 Model TT 316 36 MT 316 03 INSTRUMENT PANEL...
Page 124: ...ILLUSTRATED PARTS Page 124 Model TT 316 36 MT 316 03 SPEED CONTROL PANEL...
Page 134: ...ILLUSTRATED PARTS Page 134 Model TT 316 36 MT 316 03 Notes...
Page 135: ......