Repairing The Commutator; Service Limits - Taylor-Dunn C0-425-36 Operation, Troubleshooting And Replacement Parts Manualooting And Replacement Parts Manual

Motor Service

REPAIRING THE COMMUTATOR

1. The motor must be removed from the vehicle for this procedure. Refer to
Service
section for information on removing the motor.
2. The armature must be removed from the motor for this procedure. Refer to
Disassembly
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

Service Limits

specified in
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
commutator must be undercut.
7. While still in the lathe, smooth the commutator with
fine emery cloth.
section for information on taking the motor apart.
, then the motor must
Service Limits
Motor
Example of freshly cut commutator
, then the
Properly undercut and cleaned
commutator segments
Page 8
Transmission
Motor Inspection-