TM 9-2320-280-34
6-6. STARTER REPAIR (Cont'd)
b. Cleaning
Clean all starter motor components in accordance with para. 2-13.
c. Inspection
NOTE
For general inspection instructions, refer to para. 2-14.
1.
Inspect clutch (7) for damage, roughness, or damaged gear. Replace clutch (7) if defective.
2.
Check the brushes (4) for roughness, galling, and wear. Replace brushes (4) if defective. Replace
any brushes (4) if brush length is less than 0.375 in. (9.52 mm).
3.
Check the brush springs (5) for damage. Replace brush springs (5) if damaged.
4.
Inspect end head bearing (1) for roughness, galling, or damage. Replace end head bearing (1) if
defective.
5.
Inspect pinion housing (6) for pitting, cracks, or damage. Inspect inside diameter of bearing (6.1)
for pitting, cracks, or visual evidence of elongation. If pinion housing (6) or bearing (6.1) is
damaged, replace both pinion housing (6) and bearing (6.1).
6.
Check the commutator (10) for damage or evidence of excessive arcing. Inspect the armature
shaft (11) for rough bearing surfaces and rough or damaged splines (8). Replace starter motor if
defective.
7.
The armature (9), field coils (3), and brush holder (2) should be checked for shorts, grounds, and
open circuits with armature test set. Replace starter motor if armature (9), field coils (3), or brush
holder (2) is defective.
8.
Inspect core spring (20) and rubber boot (23) for damage. Replace if damaged.
9.
Inspect contact (15) for burns or damage. Replace if burned or damaged.
d. Assembly
NOTE
For general assembly instructions, refer to para. 2-16.
1.
Install washer (24), rubber boot (23), spring retainer (19), spring (20), and spring retainer (21) on
core shaft (18) with retaining ring (22).
2.
Install core shaft (18), washer (13), spring (14), contact (15), and washer (16) into solenoid
housing (12). Hold core shaft (18) and install nut (17).
Change 2
