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 707 of 1417

INSTALLATION

NOTE

Perform Steps (1) through (4) to ensure fuel injection pump timing is correct.

1.

Remove plug (Figure 6, Item 6), copper washer (Figure 6, Item 5), and timing pin (Figure 6, Item 4) from fuel

injection pump (Figure 6, Item 3).

2.

Install nut (Figure 6, Item 1) on shaft (Figure 6, Item 8).

NOTE

Assistant will help with Step (3).

3.

If timing tooth (Figure 6, Item 14) is not aligned with timing pin hole (Figure 6, Item 13), rotate fuel pump shaft

(Figure 6, Item 8) until timing tooth aligns with timing pin hole.

4.

Remove nut (Figure 6, Item 1) from shaft (Figure 6, Item 8).

5.

Reverse timing pin (Figure 6, Item 4) and install slot of timing pin over timing tooth (Figure

6,

Item

14).

6.

Install copper washer (Figure 6, Item 5) and plug (Figure 6, Item 6) on fuel pump (Figure 6, Item 2).

TM 9-2320-272-23-2

0242

0242-10