TM-9-2320-272-24-4

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

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

JUNE 1998

TM-9-2320-272-24-4 - Page 232 of 836

TM 9-2320-272-24-4

5-33. MANIFOLD PRESSURE COMPENSATOR MAINTENANCE (Contd)

c. Cleaning and Inspection

NOTE

Remove gasket sealant from mating surfaces.

1.

For general cleaning instructions, refer to para. 2-14.

2.

For general inspection instructions, refer to para. 2-15.

d. Assembly

1.

Install new O-ring (2) on manifold pressure compensator (1).

2.

Install washer plate (8), new diaphragm (9), washer plate (10), and washer (11) on stop bolt (7) with

round nut (12).

3.

Install spring (6) and stop bolt (7) in manifold pressure compensator (1).

4.

Install lever (3) on stop bolt (7) with washer (4) and new cotter pin (5).

e. Installation

NOTE

Perform step 1 to ensure manifold pressure compensator lever is

engaged to rocker arm in governor cover.

1.

Remove plug (24) from governor housing (23).

2.

Install manifold pressure compensator (1) on governor cover (22) with three washers (21), new

lockwashers (20), and screws (19).

3.

Install washer (25), new lockwasher (26), and new breakoff screw (27) on manifold pressure

compensator (1).

5-226