TM-9-2320-272-23-2

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-2 - Page 1031 of 1417

INSTALLATION

1.

Position seal (Figure 2, Item 4) in thermostat housing (Figure 2, Item 5).

2.

Install thermostat (Figure 2, Item 3) in thermostat housing (Figure 2, Item 5).

3.

Coat one surface of gasket (Figure 2, Item 2) with light coat of automotive and artillery grease and position

gasket over four holes on water manifold header (Figure 2, Item 1).

4.

Aligning holes in thermostat housing (Figure 2, Item 5) and header (Figure 2, Item 1), install housing with four

screw assembled lockwashers (Figure 2, Item 11).

5.

Connect radiator bypass hose (Figure 2, Item 10) to thermostat housing (Figure 2, Item 5) and bypass tube

(Figure 2, Item 8) and tighten two clamps (Figure 2, Item 9).

6.

Connect radiator inlet hose (Figure 2, Item 7) to thermostat housing (Figure 2, Item 5) and tighten clamp

(Figure

2, Item 6).

TM 9-2320-272-23-2

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