TM5-6115-584-34
NAVFAC P-8-622-34
TO-35C2-456-2
(d) Testing Commutator Runout. Place the
(e) Testing Armature Shaft Runout.
armature in a test bench and check runout with a
place armature in a test bench and check shaft
dial indicator. See figure 5-7. When commutator
runout with a dial indicator. Runout should not
runout exceeds 0.004 inch, commutator should be
exceed 0.006 inch. See figure 5-8. If shaft is
refaced. After refacing commutator, check that it
bent or worn, armature must be replaced.
meets minimum specifications. Check and if
necessary, undercut mica as given under repair.
Figure 5-7. Checking Cummutator Runout
i
Figure 5-8. Checking Armature Shaft Runout
5-6
Change 7
