TM 9-2330-356-14
Immediately wash your eyes with water
brush face for deep surface pits, cracks, or chipping.
and get medical aid.
Measure brush length. When brush is worn to less than
X-inch, replace. Clean the area around brushes and
Particles blown by compressed air can be
commutator with dry, low pressure compressed air.
dangerous. Be sure to direct air stream
away from the user and other personnel in
(5) Solenoid Switch. Inspect solenoid switch (9)
the area.
for cracks, dents, or other damage. Ensure that electrical
terminals are clean and free of corrosion. Check that the
CAUTION
rubber boot on the plunger and yoke is in good condition.
After installation, ensure that plunger and yoke move
Do not saturate armature or field coils with
freely.
solvent as wire Insulation may be dam-
(6) Armature. Inspect armature (27) for wear.
aged. Do not dip drive assembly in solvent
Inspect commutator for wear. If worn, replace starter.
as It Is packed in grease and cannot be re-
placed.
(7) Yoke. Inspect yoke (26) for damage or wear.
Never use emery cloth to clean commuta-
tor.
(8) Frame Assembly. Inspect frame assembly (19)
for damage. If frame assembly is bad, replace starter.
(1) Cleaning. Clean dust off parts with
c.
Assembly.
compressed air or soft brush. Remove grease and oil with
dry cleaning solvent (item 11, Appendix E). Remove
(1) Slide drive assembly (29) onto shaft of
discoloration or oxidation from commutator with fine
armature (27). Install stop and lock ring (28) on end of the
sandpaper grade 00. Clean off sand with compressed air.
armature shaft (27).
Use only sandpaper.
(2) Install thrust washer (21) on the end of the
(2) Bearings. Inspect bearing in pinion housing
armature shaft (27). Slip yoke (26) onto drive assembly
for wear. Replace pinion housing (22) if bearing is
(29), and install both in pinion housing (22). Install pin (25)
excessively worn. Inspect bearing in backplate assembly
in pinion housing (22) to hold yoke (26) in place.
(12). If excessively worn, replace backplate assembly.
(3) If brushes (20) are excessively worn, cut brush
(3) Drive Assembly. Inspect starter drive (29) for
leads l-inch from the welded connection (fig. 7-63).
cracks or chipped teeth. Ensure that shaft and spring
Install new brushes as follows:
under drive moves freely and returns to rear position
when released.
(4) Brushes. Lift brush tension springs (14) and
iron, or heavy duty soldering gun, tin the remaining
lift each brush (20) from holder for inspection. Check
sections of the original brush lead.
Figure 7-63. Brush Replacement,
7-57
