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Page Title:
Table I. Troubleshooting-continued |
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 Table I.
Troubleshooting - Continued
Probable Cause
Malfunction
Corrective
4. Starter produces exces-
Disassemble the starter
Worn bearings.
sive noise when operated
ings (par. 26), replace
bearings, and assemble
starter (par. 28).
5. Starter fails to
a. Short circuited or
a. If armature shows ex-
very slow-
cessive brush arcing,
grounded armature.
ly
disassemble the starter
(par. 21), check arma-
ture for grounds (fig.
29)
(fig. 30),
repair armature (par.
27e), and assemble the
starter (par. 28).
b. Worn, binding, or
--" Remove end cover (fig.
b
seated brushes.
4), check brush spring
tension (fig. 10), check
brush condition (par.
26e), replace
brushes
install end cover (par.
34) .
c. Disassemble the starter
c. Poor commutation due to
dirty, rough, or pitted
commutator.
commutator (par. 27e),
and assemble the starter
(par. 28).
d. Disassemble the starter
d. Eccentric commutator.
(par. 21), check eccen-
tricity (fig. 31), re-
pair commutator (par.
27e),
starter
(par. 28).
--. Inspect the field coils
e
e. Field coils grounded.
(par. 26f ). If
coils are grounded, dis-
assemble starter (par.
21), repair field coils
(par. 27f),
assemble
starter (par. 28).
a. Remove end cover (fig.
6. Excessive arcing of the
--. Worn, binding, or broken
a
brushes.
brushes.
4), check brush spring
tension (fig. 10), check
brush condition (par.
26e), replace
brushes
(figs. 24 and 26), and
install end cover (par.
34).
b. Disassemble the starter
b. Scored, pitted, or dirty
(par. 21), resurface the
commutator.
commutator (par. 27e).
and
assemble
(par. 28).
7
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