Figure 5-20. Starter F10000RG-2

TM5-4110-234-14

TO 40R7-5-7-1

Never oil the commutator. Oil on the commutator reduces the cranking ability of the motor.

c. The commutator can be cleaned by using number 00 sandpaper. Never use emery cloth. If the commutator

is out of round or has high mica, remove it from the cranking motor. Turn the commutator down on a lathe being careful to

remove only enough material to true up the commutator and remove high mica.

NOTE

It is not necessary to undercut mica on starter motor commutators.

d. Replace worn brushes. If brushes wear rapidly, check for excessive brush spring tension and roughness or

high mica on the commutator.

(1) Periodically inspect solenoid and shift lever to make sure they are operating properly. Keep the solenoid shift

lever free of dirt and excess grease.

5-42