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Page Title:
COOLING SYSTEM SERVICING - continued |
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 TM 9-2320-361-24-1
0076 00
COOLING SYSTEM SERVICING (Contd)
DRAINING
WARNING
Do not remove radiator cap if engine is hot. Steam or hot
coolant under pressure may cause injury to personnel.
1.
Turn radiator cap (1) to first stop. Allow any pressure to escape.
2.
Remove radiator cap (1) by pressing down and turning counterclockwise. Lift off radiator cap (1)
from filler neck (2).
WARNING
Accidental or intentional introduction of liquid contaminants
into the environment is a violation of state, federal, and
military regulations. Refer to Army POL (WP 0001 00) for
information concerning storage, use, and disposal of these
liquids. Failure to do so may result in damage to environment
and health of personnel.
NOTE
Use a drain pan to capture any draining coolant. Dispose of
fluids in accordance with local policy and ordinances. Ensure all
spills are cleaned up.
3.
Open engine block draincock (5) and radiator draincock (4) to allow coolant to drain.
4.
Close engine block draincock (5) and radiator draincock (4).
CLEANING AND FLUSHING
Follow cleaning and flushing instructions included in cleaning compound kit to clean and flush
radiator (3) and cooling system.
FILLING
CAUTION
Type 1, ethylene glycol (green) and Type 2, propylene glycol
(purple), should never be mixed due to their difference in
toxic properties. Failure to comply may result in damage to
equipment.
Using antifreeze without mixing it with water can cause high
operating temperatures, blockage of cooling system passages,
and damage to water pump seals.
NOTE
Type 1 antifreeze is an ethylene glycol based coolant, green in
color, and is the only authorized antifreeze for military
vehicles. Type 1 can be added to factory-filled pink coolant.
When it becomes necessary to flush factory coolant, Type 1,
ethylene glycol, will be used. When mixing Type 1 antifreeze
with water, distilled water is recommended. Tap water should
only be used in emergency situations.
Capacity of cooling system is 32 quarts (30.3 liters).
1.
Fill cooling system with required amount of antifreeze (table 3-1).
2.
Add distilled water to 1 in. (2.45 cm) below top of filler neck (2).
3.
Install radiator cap (1) on filler neck (2).
4.
Start engine (TM 9-2320-361-10), and allow engine to reach normal operating temperature.
5.
Stop engine (TM 9-2320-361-10) and allow engine to cool.
0076 00-2
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