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TM 5-4210-220-12
4-20. RADIATOR AND COOLING SYSTEM - Continued
4-20 1 Radiator and Shutter Assembly - Continued
a.
Radiator Pressure Cap Repair - Continued
(3) Install radiator cap. Start engine and check temperature of coolant when at working temperature.
Be sure no fluid is dripping from radiator overflow hose.
b.
Radiator Overflow Hose Repair
WARNING
Engine coolant can cause severe burns. Allow engine to cool before attempting to maintain
the radiator.
NOTE
The radiator overflow hose cannot
be repaired. Replace if it has
cracks or tears. The overflow
hose can be replaced without
removing the radiator from the
truck.
(1)
Remove screws (1), nuts (2), and clamps
(3).
(2)
Pull radiator overflow hose off radiator.
(3)
Cut length of radiator hose to fit.
(4)
Install radiator hose on filler neck.
(5)
Clamp in place using screw (1), nuts (2)
and clamps (3).
c.
Radiator Drain Valve Repair
WARNING
Engine coolant can cause severe
burns. Allow engine to cool
before attempting to maintain the
radiator.
NOTE
The drain valve can be repaired
without removing radiator from
the truck.
(1)
If the valve stem leaks when under
pressure, tighten gland nut (1) until leak
stops.
(2)
If leak does not stop replace the valve,
see below.
4-320
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