TM 5-3825-226-24
problem is in the motor. The motor must be removed
for further testing. No reading on the voltmeter shows
that the solenoid contacts do not close. This is an
indication of the need for repair to the solenoid or an
adjustment to be made to the starter
If the solenoid for the starting motor will not
operate, it is possible that the current from the battery is
not getting to the solenoid. Fasten one lead of the
voltmeter to the connection (terminal) for the battery
cable on the solenoid. Put the other lead to a good
ground. No voltmeter reading shows there is a broken
circuit from the battery. Further testing is necessary
when there is a reading on the voltmeter.
Further test by fastening one voltmeter lead to
the connection (terminal) for the small wire at the
solenoid and the other lead to the ground. Look at the
voltmeter and activate the starter solenoid. A voltmeter
reading shows that the problem is in the solenoid. No
voltmeter reading shows that the problem is in the
starter switch or wiring. Fasten one lead of the
voltmeter to the battery wire connection of the starter
switch and put the other lead to a good ground. A
voltmeter reading indicates a failure in the switch.
A starting motor that operates too slow can have
an overload because of too much friction in the engine
being started. Slow operation of the starting motor can
also be caused by shorts, loose connections, and/or dirt
in the motor.
Pinion Clearance Adjustment
Whenever the solenoid is installed, make an
adjustment of the pinion clearance. The adjustment can
be made with the starting motor removed.
1.
Install the solenoid without connector (I) 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).
CONNECTION FOR CHECK1ING PINION
CLEARANCE
1. Connector from MOTOR terminal on solenoid to
motor. 2. SW terminal. 3. Ground terminal.
4. Connect for a moment, a wire from the solenoid
connection
(terminal)
"MOTOR"
to
the
ground
connection (terminal). The pinion will shift to crank
position and will stay there until the battery is
disconnected.
PINION CLEARANCE ADJUSTMENT
4. Shaft nut. 5. Pinion. 6. Pinion clearance.
5.
Push the pinion toward commutator end to
remove free movement.
6.
See SPECIFICATIONS for the correct Delco-
Remy pinion clearance.
7.
Pinion
clearance
adjustment
is
made
by
removing plug and turning nut (4).
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