GMC 1976 ZEO 6083 Maintenance Manual page 444

6Y- 64 ENGINE ELECTRICAL
Figure 69-Removing Pinion Retainer
using pliers or other suitable tool . If the snap ring is
distorted during removal, it will be necessary to use
a new one upon reassembly .
d . Remove retainer and clutch assembly from
armature shaft.
5. If necessary to replace brush holder parts, refer
to Figure 70, then proceed as follows:
a. Remove brush holder pivot pin which posi-
tions one insulated and one grounded brush.
b. Remove brush spring .
c. Replace brushes as necessary.
6. If necessary to remove solenoid assembly or
shift lever, proceed as follows:
a . Remove solenoid to drive gear housing at-
taching screws, then remove solenoid assembly . (fig-
ure 71)
b. To remove shift lever and/or plunger,
remove shift lever pivot bolt (figure 72) .
c. Disassemble shift lever from plunger.
CLEANING, INSPECTION AND
TESTS
1 . Clean all starting motor parts, I)ut DO NOT
USE GREASE DISSOLVING SOLVENTS FOR
PIVOT PIN
A-1883
Figure70-Brush Installation
CLEANING THE OVERRUNNING CLUTCH,
ARMATURE, AND FIELD COILS, since such
solvent would dissolve the grease packed in the
clutch mechanism and would damage armature and
field coil insulation .
2. Test overrunning clutch action . The pinion
should turn freely in the overruning direction. Check
pinion teeth to see that they have not been chipped,
cracked, or excessively worn . Replace clutch if worn
or damaged .
3. Check brush holders to see that they are not
deformed or bent and will properly hold brushes
against the commutator .
4. Check fit of armature shaft in bushing in drive
Figure 71-Solenoid Removal
A-1884