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 216 of 836

TM 9-2320-272-24-4

5-31. MOUNTING FUEL INJECTION PUMP TO TEST STAND

THIS TASK COVERS:

a. Mounting Fuel Injection Pump to

b. Removing Fuel Injection Pump from

Test Stand

Test Stand

INITIAL SETUP:

APPLICABLE MODELS

MATERIALS/PARTS

M939A2

Lockwasher (Appendix D, Item 383)

TOOLS

Two copper washers (Appendix D, Item 42)

General mechanic’s tool kit (Appendix E, Item 1)

Copper washer (Appendix D, Item 45)

Copper washer (Appendix D, Item 44)

Fuel injection pump test stand (Appendix E,

Item 50)

REFERENCES (TM)

TM 9-2320-272-24P

EQUIPMENT CONDITION

Fuel injection pump removed (para. 4-57).

a. Mounting Fuel Injection Pump to Test Stand

1.

Remove screw plug (11) and copper washer (12) from drive end of fuel pump (14). Discard copper

washer (12).

2.

Install adapter ring (23) on adapter bracket (6) with three washers (9) and screws (10).

3.

Install adapter bracket (6) on test stand (20) with washer (7), screw (8), and clamp bar (25).

4.

Install fuel pump (14) on adapter bracket (6) with four washers (26), screws (27), washers (22), and

nuts (21).

5.

Install woodruff key (13) and drive hub (3) on fuel pump (14) with lockwasher (2) and nut (1).

6.

Slide fuel pump (14) forward so drive hub (3) engages with drive coupling (28) and secure fuel

pump (14) in place with four lockwashers (4) and nuts (5).

7.

Install rear support bracket (19) on rear of fuel pump (14) with two washers (17) and screws (18).

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