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 774 of 1015

TM 9-2320-272-24-1

3-149. TRANSFER CASE TO FRONT AXLE PROPELLER SHAFT REPLACEMENT

THIS TASK COVERS:

a. Removal

b. Installation

INITIAL SETUP:

APPLICABLE MODELS

REFERENCES (TM)

All

LO 9-2320-272-12

TOOLS

TM 9-2320-272-10

TM 9-2320-272-24P

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

Torque wrench (Appendix E, Item 146)

EQUIPMENT CONDITION

MATERIALS/PARTS

Sixteen locknuts (Appendix D, Item 291)

Two lockwashers (Appendix D, Item 382)

l

Parking brake set (TM 9-2320-272-10).

l

Wheels chocked (TM 9-2320-272-10).

a. Removal

NOTE

Step 1 refers to M939/A1 vehicles only

1.

Remove two screws (4), lockwashers (5), and center bearing bracket (6) from bracket (7). Discard

lockwashers (5).

2.

Remove eight locknuts (10) and screws (8) from propeller shaft flange (11) and differential

flange (9). Discard locknuts (10).

3.

Remove eight locknuts (1) and screws (2) from propeller shaft flange (12) and transfer case

flange (13). Discard locknuts (1).

4.

Remove transfer case to front propeller shaft assembly (3).

b. Installation

1.

Install transfer case to front axle propeller shaft assembly (3) on transfer case flange (13) with eight

screws (2) and new locknuts (1). Tighten locknuts (1) 32-40 lb-ft (43-54 N.m).

2.

Install transfer case to front axle propeller shaft assembly (3) on differential flange (9) with eight

screws (8) and new locknuts (10). Tighten locknuts (10) 32-40 lb-ft (43-54 N.m).

NOTE

Step 4 refers to M939/A1 vehicles only.

3.

Install center bearing bracket (6) on bracket (7) with two new lockwashers (5) and screws (4).

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