TM-9-2320-279-20-1

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 1 OF 3

TM-9-2320-279-20-1 - Page 520 of 985

TM 9-2320-279-20-1

Cooling System Maintenance Instructions (Cont)

6-2. COOLING SYSTEM SERVICING (CONT).

b.

C.

(7)

Turn draincock (6) to open and drain antifreeze.

(8)

Turn draincock (6) to close when front cooling system (7) is drained.

(9)

Turn draincock (8) to open and drain antifreeze.

(10)

Turn draincock (8) to close when left side cooling system (9) is drained.

Fill Cooling System.

NOTE

Make sure radiator draincock and cooling

system draincocks are closed before filling

radiator with antifreeze.

(1)

Fill radiator (1) with 2.4 qt (228 L)

corrosion inhibitor and up to within 1

in. below filler neck (2) with permanent

antifreeze.

(2)

Install radiator cap (3) by turning

radiator cap clockwise.

Follow-on Maintenance.

(1)

Start engine and warm up to normal

operating temperature

(TM 9-2320-279-10).

(2)

Check cooling system for leaks.

(3)

Shut off engine (TM 9-2320-279-10).

(4)

Install engine side panels

(TM 9-2320-279-10).

(5)

Close engine cover (TM 9-2320-279-10).

END OF TASK

6-4

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