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 TM 10-3930-660-24-1
RADIATOR MAINTENANCE - CONTINUED
0053 00
SERVICE - CONTINUED
13.
Slowly fill the radiator (4) through the filler neck until
water begins to run out of drain cock (6) at top front of
9 11
engine.
14.
Close drain cock (5). Continue filling radiator (4) until
10
water level reaches filler neck.
15.
Clean seal on radiator cap (3) and install radiator cap
to radiator (4).
11
9
NOTE
7
Check for cooling system leaks during step 16.
4
16.
Start engine and allow to idle for 1/2 hour. Stop engine
6
3
and allow to cool (TM 10-3930-660-10).
17.
Slowly remove radiator cap (3) from radiator (4) and
allow pressure to escape.
NOTE
Use containers to catch used water when drain-
5
2
ing cooling system in steps 18 thru 22.
18.
Open drain cock (6) at top of engine where heater hose
1
(6) attaches to engine.
8
19.
Open drain cock (5) at bottom of radiator (4).
409-222
20.
Disconnect hose (8) at bottom of overflow tank (1).
21.
Remove two clamps (9) securing cab heater hoses (7 and 10) to two connectors (11). Tag and remove hoses from con-
nectors (11). Discard clamps.
22.
Allow all used water to drain from the cooling system.
23.
To fill engine cooling system with coolant, position cab heater hoses (7 and 10) on two connectors (11), as tagged, and
secure with two new clamps (9).
24.
Connect hose (8) to bottom of overflow tank (1).
25.
Close drain cock (5) at bottom of radiator (4).
26.
Open cap (2) of overflow tank (1) and add 2 qt (1.8 L) of coolant. Close cap.
27.
Slowly fill the radiator (2) through the filler neck with coolant until coolant beings to run out of drain cock (6) at top
front of engine. Close drain cock (5). Continue filling radiator until coolant level reaches filler neck.
28.
Clean seal on radiator cap (3) and install radiator cap to radiator (4).
29.
Run the engine until normal engine operating temperature is reached. Check for coolant leaks. Turn heater on and make
sure heated air is being emitted.
30.
Stop the engine and let it cool (TM 10-3930-660-10). Check coolant level at overflow tank (1) and add coolant, if neces-
sary.
31.
If removed from storage position, install the load backrest at rear of vehicle (TM 10-3930-660-10).
0053 00-3
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