3
TM 9-4940-568-34
5-145
f.
Component Electrical Testing.
NOTE
Perform the following electrical
tests on the solenoid assembly,
armature assembly, and frame
and field assembly to determine
their serviceability.
(1)
Check windings of solenoid assembly (3)
for continuity as follows:
(a)
Check resistance of solenoid pull-in
and hold-in windings in series by
measuring resistance between motor
terminal and solenoid case.
Resistance should be approximately
1.75 ohms for 24 volt starters.
(b)
An extremely high resistance reading
indicates a break or fault in winding
continuity. A very low resistance
reading indicates a short or ground in
the winding circuit. Either condition
is cause for replacement of the
solenoid assembly (3).
