TM-9-2320-386-10
2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); OPERATOR’S MANUAL
JANUARY 1996
TM-9-2320-386-10 - Page 71 of 223
Table 2-2. Operator/Crew Preventive Maintenance Checks and Services (Contd).
ITEM
NO.
INTERVAL
ITEM TO
CHECK/
SERVICE
PROCEDURE
NOT FULLY
MISSION
CAPABLE IF:
TM 9-2320-386-10
2-38
Change 1
With engine shut off, ensure air dryer
Air dryer heater
heater (1) is functioning properly.
fails to operate at
Touch heater (1). If functioning
temperatures of 53°F
properly, heater (1) should feel warm.
(12°C) and below.
37
Air
Open drainvalves (3) on air reservoirs
reservoirs
(2) and exhaust air completely.
NOTE
• Air dryer heater must be
checked immediately after
shutting down engine.
• Air dryer heater only operates
at temperatures of 53°F (12°C)
and below.
3
2
VEHICLE EXTERIOR
ENGINE NOT RUNNING
36
After
Air dryer
Operation
heater
(Contd)
WARNING
• Use caution when checking
air dryer heater. A malfunc-
tioning heater may be too hot
to touch and cause injury to
personnel.
• Air dryer heater operates at
temperatures of 53°F (12°C)
and below. Air dryer heater
failure may result in equip-
ment damage and injury or
death to personnel.
1
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