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 601 of 1417

INSTALLATION

NOTE

•

If a late model engine oil filter head is to be installed on an early model engine, the oil

supply system must be replaced, including oil pump, pressure regulator valve, oil supply

line, and elbow.

•

Perform Step (1) if oil cooler core is being installed.

•

Perform Step (3) on vehicles with late model engines and Step (4) on vehicles with early

model engines.

1.

Remove two shipping plugs (Figure 4, Item 12) from oil cooler core (Figure 4, Item 9). Discard shipping plugs.

2.

Install gasket (Figure 4, Item 12), oil cooler core (Figure 4, Item 9), gasket (Figure 4, Item 8), oil filter head

(Figure 4, Item 4), wiring harness (Figure 4, Item 7), and clamp (Figure 4, Item 5) on engine block

(Figure

4,

Item 15) with 11 screws (Figure 4, Item 6).

3.

Install o-ring (Figure 4, Item 3) and adapter (Figure 4, Item 2) on oil filter head (Figure 4, Item 4) and connect

oil supply line (Figure 4, Item 1) to adapter.

4.

Install elbow (Figure 4, Item 16) on oil filter head (Figure 4, Item 4) and connect oil supply line

(Figure

4,

Item

1) to elbow.

CAUTION

When filling cooling system on M939A2 series vehicles, ensure drain valve on aftercooler is

open. Failure to do so may result in damage to equipment.

5.

Install hose (Figure 4, Item 14) on nipple (Figure 4, Item 12) with clamp (Figure 4, Item 13).

TM 9-2320-272-23-2

0229

0229-8