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 955 of 1417

SURGE TANK INSTALLATION

1.

Install surge tank (Figure 3, Item 18) on cylinder head (Figure 3, Item 10) with two exhaust manifold clamps

(Figure 3, Item 16), four washers (Figure 3, Item 15), keywashers (Figure 3, Item 14), and screws

(Figure

3,

Item

13). Ensure clamps are parallel to surface of cylinder head. Tighten screws 15 to 20 lb-ft

(20

to

27

N·m).

2.

Retighten screws (Figure 3, Item 13) 40 to 45 lb-ft (54 to 61 N·m) and bend tabs of key washers

(Figure

3,

Item

14) against flats of screws.

3.

Connect engine oil cooler hose (Figure 3, Item 11) to surge tank (Figure 3, Item 18) and tighten clamp

(Figure

3,

Item

12).

4.

Install surge tank support (Figure 3, Item 9) on lifting eye (Figure 3, Item 7) with screw (Figure 3, Item 5) and

locknut (Figure 3, Item 8).

5.

Install surge tank support extension (Figure 3, Item 17) on support (Figure 3, Item 9) with washer

(Figure

3,

Item

6) and screw (Figure 3, Item 3).

6.

Connect chain (Figure 3, Item 2) to cap (Figure 3, Item 19) and surge tank support (Figure 3, Item 9) with pin

(Figure 3, Item 4).

7.

Install cap (Figure 3, Item 19) on surge tank (Figure 3, Item 18) with retaining pin (Figure 3, Item 1).

TM 9-2320-272-23-2

0278

0278-6