TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004
CHANGE 2

  TM-9-2320-272-10 - Page 155 of 481

e.
Check water pump for any
obvious coolant leakage or damage.
f.
Check pulleys for cracks and
damage.
DRIVER
WARNING
• Extreme care should be taken
when removing surge tank
filler cap if temperature gauge
reads above 175° F (79° C).
Steam or hot coolant under
pressure will cause injury.
• Accidental or intentional intro-
duction of liquid contaminants
into the environment is in vio-
lation of state, federal, and
military regulations. Refer to
Lubrication Order (para. 3-1)
for information concerning
storage, use, and disposal of
these liquids. Failure to do so
may result in injury or death.
NOTE
If surge tank on M939A2
series vehicles is found to be
empty, open drainvalve on
aftercooler and fill surge tank.
Close drainvalve when coolant
is observed flowing from drain,
and continue to fill to approxi-
mately bottom end of fill tube.
e.
Any class III
coolant leak or
damage is evident.
f.
Any pulley is
cracked or dam-
aged.
2-56
Table 2-3. Preventive Maintenance Checks and Services for Models M939/A1/A2 (Contd).
ITEM
NO.
INTERVAL
ITEM TO
CHECK/
SERVICE
NOT FULLY
MISSION
CAPABLE IF:
TM 9-2320-272-10
LOCATION
24
(contd)
After
Cooling
System
(contd)
CREWMEMBER
PROCEDURE


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