TM 5-4310-362-14
ELECTRIC MOTOR (cont)
LOCATION/ITEM
ACTION
REMARKS
TEST FOR OPEN STATOR
WINDINGS
Preliminary conditions
Motor fully assembled.
Motor leads disconnected from
power source.
Capacitor case removed to
capacitor accessible.
1. Multimeter
Set to OHMS x 1 scale.
2. Multimeter test leads
Connect to motor leads as shown
in table.
Connect
A reading of infinity in steps 1 or 2
test leads
means that one of the windings is open.
Step
to
Reading
A reading of infinity in step 3 means
1
T1 and T2
0
that either the starter winding or the
2
T3 and T4
0
centrifugal switch is open. A reading
3
T9 * and T8
0
of 0 in step 4 means that the capacitor
4
T5 and T8
is shorted.
∞
∗Tag is one of the capacitor
leads
CAPACITOR TEST
1. Multimeter
Set to OHMS x 1000 scale.
2. Multimeter test leads
Connect to two capacitor leads.
Multimeter should read infinity. When
you first touch the leads to the capaci-
CENTRIFUGAL
tor, there might be a small deflection
SWITCH
of the meter needle because the ca-
(CLOSED WHEN
pacitor is being charged up. A reading
ROTOR IS NOT
of 0 means the capacitor is shored out.
TURNING)
STARTER
WINDINGS
9-12
