TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 555 of 1015

3-65. THERMOSTAT

TM 9-2320-272-24-l

4.

Aligning holes in thermostat housing (5) and header (1), install housing (5) with four new screw-

assembled lockwashers (11).

5.

Connect radiator bypass hose (10) to thermostat housing (5) and bypass tube (8) and tighten two

clamps (9).

6.

Connect radiator inlet hose (7) to thermostat housing (5) and tighten clamp (6).

FOLLOW-ON TASKS:

Fill cooling system to proper level (para. 3-53).

Start engine (TM 9-2320-272-10), check for coolant leaks, and check temperature

gauge for normal reading of 175°F to 195°F (70°C to 97°C).

Install right splash shield (TM 9-2320-272-10).

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