TM-9-2320-272-24-1

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 370 of 1015

3-2. CRANKCASE

TM 9-2320-272-24-1

NOTE

Perform steps 1 and 2 if breather was removed.

1.

Apply adhesive sealant to mating surfaces of crankcase breather (1) and valve cover (7).

2.

Install crankcase breather (1) on valve cover (7) and align with mark.

NOTE

Perform steps 3 and 4 on vehicles with late model engines and

steps 5 through 7 on vehicles with early model engines.

3.

Apply antiseize compound to threads of elbow (5) and install on air connector (6).

4.

Install two breather hoses (3) and breather tube (4) on elbow (5) and crankcase breather (1) with four

hose clamps (2).

5.

Install breather hose (10) and breather tube (8) on crankcase breather (1) with two clamps (9).

6.

Install mounting bracket (12) on engine (11) with new lockwasher (14) and screw (15).

7.

Install clamp (16) on mounting bracket (12) and breather tube (8) with screw (13) and new locknut (17).

M939/A1 LATE MODEL ENGINE

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