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 519 of 985

TM 9-2320-279-20-1

Cooling System Maintenance Instructions (Cont)

NOTE

When draining radiator, place suitable container directly under draincock to

prevent antifreeze from draining on vehicle and ground.

Drain radiator only until antifreeze is below upper radiator hose.

(3)

Turn draincock (2) to open and drain antifreeze from radiator (3).

(4)

Turn draincock (2) to close when radiator (3) is empty, or when antifreeze is at appropriate level.

(5)

Turn draincock (4) to open and drain antifreeze.

(6)

Turn draincock (4) to close when right side cooling system (5) is drained.

6-3