TM-9-2320-272-23-4

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-4 - Page 1243 of 1393

INSTALLATION

1.

Install bracket (Figure 2, Item 12) on toolbox (Figure 2, Item 1).

2.

Install four screws (Figure 2, Item 14) and locknuts (Figure 2, Item 17) on bracket (Figure 2, Item 12).

3.

Install engine coolant heater (Figure 2, Item 2) on bracket (Figure 2, Item 12).

4.

Install two clamps (Figure 2, Item 11) on engine coolant heater (Figure 2, Item 2).

5.

Install elbow (Figure 2, Item 16), adapter (Figure 2, Item 15), and hose (Figure 2, Item 13) on engine coolant

heater (Figure 2, Item 2).

6.

Install exhaust tube (Figure 2, Item 18) on engine coolant heater (Figure 2, Item 2) with cotter pin

(Figure 2, Item 19).

7.

Install nipple (Figure 2, Item 10), union (Figure 2, Item 4), elbow (Figure 2, Item 5), adapter (Figure 2, Item 6),

and hose (Figure 2, Item 7) on engine coolant heater (Figure 2, Item 2).

8.

Install elbow (Figure 2, Item 9) and fuel line (Figure 2, Item 8) on engine coolant heater (Figure 2, Item 2).

9.

Connect heater harness (Figure 2, Item 3) to engine coolant heater (Figure 2, Item 2).

TM 9-2320-272-23-4

0748

0748-4