Specifications

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27
NOTE: SPECIFICATION TABLES BEGIN ON PAGE 41 OF THIS SECTION.
1. Remove thru bolts (1), Fig. 50, then remove end
head.
Fig. 50
1
2. Remove armature and end cap (2) by pushing up
on armature shaft (A) as shown in Fig. 51.
3. Clean all residue from the armature, end cap, end
head, etc.
4. Do not soak bearings, motor housing or armature
in a solvent solution.
5. The armature commutator may be cleaned with a
fine sand paper or commutator paper. Do not
use
emery cloth, as emery will embed in the
commutator, causing rapid brush wear.
6. If it is suspected that the armature is defective, and
proper equipment is available, test the suspect
armature. If not, try a new armature in the motor.
Fig. 51
1
2
A
7. Starter motor armatures have very low resistance,
usually below detection on available multimeters.
To check for shorted armatures, take starter to an
electric motor repair facility.
8. The brushes should be checked for poor seating,
weak springs, and contamination, Fig. 52 (Typ.).
9. If brushes are worn to less than 1/4
” (6.0 mm), they
should be replaced.
10. If the magnets appear to be weak, a new motor
housing should be tried.
Fig. 52
1