ELECTRICAL SYSTEM
TESTING AND ADJUSTING
End Play for the Armature
The correct end play for the armature is .005 to .030
in. (0.13 to 0.76 mm). To make an adjustment to the
end play for the armature, add or remove thrust washers
on the commutator end of the armature shaft.
Pinion Clearance
1. To make an adjustment to the pinion clearance,
connect the solenoid to a 12 volt battery as
shown,
CONNECTION FOR CHECKING PINION CLEARANCE
1. Connector from MOTOR terminal on solenoid to
motor, 2. SW terminal. 3. Ground terminal.
1. Install the solenoid without connector (1) from
the MOTOR connection (terminal) on solenoid
to the motor.
2. Connect a battery, of the same voltage as the
solenoid, to the terminal (2), "SW".
3. Connect the other side of battery to. Ground
terminal (3).
CONNECTIONS FOR ADJUSTMENT OF
THE PINION CLEARANCE
1. Terminal.
2. Connect for a short moment, a wire from the
solenoid connection (terminal) "MOTOR" to the
terminal (1) at the commutator end head. The
solenoid and drive will shift to the crank position
and will stay there until the battery is
disconnected.
3. Push the drive toward the commutator end to
remove any free movement.
PINION CLEARANCE ADJUSTMENT
4. Measure the pinion clearance (3). The pinion
4. Shaft nut. 5. Pinion. 6. Pinion clearance.
clearance (3) must be .020 to .050 in. (0.51 to
4. Connect for a moment, a wire from the solenoid
1.27 mm).
connection (terminal) "MOTOR" to the ground
5. To make an adjustment to the pinion clearance,
connection (terminal). The pinion will shift to
remove the plug and turn the adjustment nut (2)
crank position and will stay there until the
as necessary.
battery is disconnected.
5. Push the pinion toward commutator end to
remove free movement.
6. Pinion clearance (6) must be .36 in. (9.1 mm).
7. Pinion clearance adjustment is
made
by
removing plug and turning nut (4).
Pinion Clearance Adjustment (Prestolite)
There are two adjustments for this type starting motors.
They are end play for the armature and pinion
PINION CLEARANCE ADJUSTMENT
clearance.
2. Adjustment nut 3. Pinion clearance.
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