TM 9-2350-230-12
Malfunction
Probable cause
Corrective action
WINTERIZATION COOLANT -
HEATER - Continued
66. 3. Excessive smoke,
Fuel accumulation due to slom
or "bangs" on
starting.
starting
(1) Defective igniter
(1) Check igniter (table
8-14. 1), and replace if
defective (fig. 12-12).
(2) Defective restriction
(2) Check solenoid and valve
solenoid or air valve
tive, replace heater.
(3) Defective fuel valve
(3) Replace heater.
NOTE. If banging is severe and
persists on several succes-
sive starts, or if smoking
condition does not clear itself
after several minutes of
operation, replace heater.
66.4
BLOWER MOTORS WILL
(1) INSUFFICIENT OIL PRESSURE
(1) CHECK OIL LEVEL
NOT OPERATE
TO ACTUATE OIL PRESSURE
(LO 9-2350-230-12)
SWITCH.
(2) REPLACE.
(2) OIL PRESSURE SWITCH
DEFECTIVE
(3) INSPECT CIRCUITS 58, 58A,
581 AND HARNESS 11665313
(3) WIRING DISCONNECTED,
OR PROPER CONNECTION,
WORN OR SHORT CIR-
VOLTAGE AND CONTINUITY.
CUITED.
(4) REPLACE.
(4) OPEN CIRCUIT BREAKER.
(5) REPLACE.
(5) DEFECTIVE RELAY.
(6) REPLACE.
(6) DEFECTIVE BLOWER MOTORS
66.5
BLOWER MOTORS
BLOWER OR OUTLET
INSPECT AND CLEAN.
OPERATE BUT AIR FLOW
HOSE CLOGGED.
RESTRICTED.
NOTE. ALL OTHER MAL-
FUNCTIONS NOT LISTED,
REPORT IMMEDIATELY TO
DIRECT SUPPORT.
(8-28. 4 blank)/8-28. 3
