Specifications

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21
NOTE: SPECIFICATION TABLES BEGIN ON PAGE 41 OF THIS SECTION.
5. Remove both starter motor thru bolts (1), Fig. 34,
and separate end cap (2) from housing.
Fig. 34
1
2
6. Push motor armature out through bottom of starter
housing (3), taking care to slide rubber mounted
terminal (1) out of motor housing (3) along with end
cap (2), Fig. 35.
Armature shaft (4)
Fig. 35
2
4
1
3
7. Before removing armature from end cap, check
brushes (1) for freedom of movement. If brushes
stick in their retainers, repair before reassembly,
Fig. 36.
8. If brushes are worn to a length of 5/64” (2.0 mm)
(System 3, 4) or less, they should be replaced.
9. Check brush springs for proper tension
(sufficient force to keep brush in firm contact
with commutator).
5/64” (2.0 mm)
Fig. 36
1
10. Clean all residue from armature, end cap, motor
support, gears, etc. Do Not soak end cap bearings
and armature in solvent.
11. The armature commutator may be cleaned with a
fine sandpaper or commutator paper. DO NOT use
emery cloth, emery will embed in the commutator
causing rapid brush wear.
12. Slots between commutator bars may be cleaned
using aerosol spray carburetor cleaner and
compressed air after sanding or machining.
13. If the armature is suspect, and proper equipment is
available, test the suspect armature. If not, a new
armature should be tried in the motor.
14. 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.
15. If the magnets appear to be weak, a new motor
housing should be tried.