Hummer H1 Service Manual page 804

______________________________________________________
®
SOLENOID
HOUSING
BOOT
SNAP RING
SPRING
RETAINER
Figure 12-62: Solenoid Components
END PLATE
05745159
SPRING CONTACT
CORE
SHAFT
SPRING SPRING
RETAINER
BRUSH
BEARING
HOLDER
SPRING
ARMATURE
BRUSH
COMMUTATOR
Figure 12-63: Starter Components
Inspection
Inspect clutch for broken spring, damaged gear or splines, and
non-lockup. Replace clutch if damaged (Figure 12-63).
Inspect brushes for cracks, roughness, galling, wear, or dam-
aged lead. If one brush length is less than 0.315 in. (8 mm) or
has other damage, replace all brushes as a set.
Inspect springs for breaks, distortion, or other damage. Replace
any damaged springs.
Inspect bearings in head end and pinion housing for cracks,
roughness, galling, or damage. Replace bearings if defective
(Figure 12-63).
Inspect pinion housing for cracks, damaged pinion bearing,
and damaged threads. Repair minor thread damage. Replace
starter if otherwise damaged.
Inspect commutator for damage due to arcing (burned spots
and pitting), damaged shaft, splines, or threads. Replace starter
if commutator is damaged.
Test armature, field coils, and brush holders for shorts,
grounds, and open circuits with an armature tester. Replace
starter if any one of these parts is defective.
Inspect core spring, core shaft, and rubber boot for damage.
Replace parts if damaged (Figure 12-64).
Inspect contact for burns or damage. Replace contact if burned
or damaged.
Inspect housing of frame assembly, head end, and solenoid
housing for cracks or damage. Replace starter if any part is
damaged (Figures 12-64 and 12-65).
FIELD
COIL
CLUTCH
SPLINES GEAR
Electrical System
FRAME ASSEMBLY
PINION HOUSING
(IN HOUSING)
12-33
BEARING
4-1-00