TM 5-4310-358-14
Table 5-1. Troubleshooting (Con't)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Check magnetic starter switch
a. Disconnect main power source.
to see if it is defective. Use com-
pressed air and remove all dust
or dirt from magnetic starter components,
b. Remove screw from bottom of magnetic
check continuity of heater coil, operating coil,
starter box cover and remove the cover.
relay overload, contact carrier and interlock
assembly. Check on-off switch continuity
c. Tag and disconnect all wiring.
and stem action. If the magnetic starter
d. Use figure 5-2 as a guide and disassemble
switch and on-off switch checks out, proceed
the magnetic starter assembly as follows:
to Step 3. If not replace the magnetic switch
as follows:
(1) Remove connector (6) and (10) from
the magnetic switch box.
(2) Remove nut (1), lockwasher (2),
flatwasher (3) and capscrew (4) and remove
the control box.
(3) Remove contact cap (11), contact
kit (12), contact carrier (13), operating
coil (14), coil heater (15), overload
relay (16), and interlock assembly (17).
(4)
Replace any defective part.
(5) Replace interlocking assembly (17),
overload relay (16), coil heater (15),
operating coil (14), contact carrier (13),
contact kit (12) and contact cap (11).
(6) Replace the magnetic control box with
capscrew (4), flatwasher (3), lock-
washer (2) and nut (1).
(7) Replace connector (11) and (6) to the
magnetic control box.
e. Reconnect all wiring.
f. Replace magnetic starter box cover and
install capscrew.
g. Connect main power source.
Step 3. Check for a defective motor.
a. Disconnect main power source.
Connect leads from the motor direct
to the power source. If motor fails
to run remove, repair or replace.
b. Remove attaching hardware and remove
V-belt guard.
c. Loosen motor mounting bolts, slide motor
towards compressor and remove V-belts.
d. Tag and disconnect electric leads.
e. Remove mounting bolts and remove the
electric motor and disassemble using
figure 5-3 as a guide.
5-3
