TM-9-2320-260-34-1

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 1 OF 2

JULY 1994

TM-9-2320-260-34-1 - Page 258 of 657

TM 9-2320-260-34-1

3-69. ACCESSORY DRIVE INSTALLATION

THIS TASK COVERS:

Installation

lNITIAL SETUP

APPLICABLE MODEIS

All

MATERIALS/PARTS

Five screw-assembled lockwashers

TOOLS

(Appendix D, Item 399)

Gasket (Appendix D, Item 109)

General mechanic’s tool kit

(Appendix B, Item 1)

REFERENCES (TM)

Torque wrench, 3/8-in. dr.

(Appendix B, Item 4)

TM 9-2320-260-34P-1

Engine barring tool (Appendix B, Item 66)

Installation

1. Using engine barring tool, rotate engine crankshaft until number one cylinder is at top dead center

(TDC) of compression stroke.

2. Rotate engine crankshaft 90° past TDC.

CAUTION

Accessory drive gear and camshaft gear timing marks must be

properly alined for engine to operate.

3. Remove pipe plug (3) from front gear cover (1).

4. Position new gasket (5) and accessory drive (7) on cylinder block (4), Ensure timing marks on drive

gear (6) are alined with timing marks on camshaft gear (9) in hole (2) on front gear cover (1).

5.

Install accessory drive (7) with five new screw-assembled lockwashers (8).

6. Install pipe plug (3) in front gear cover (1).

7. Tighten screw-assembled lockwashers (8) 40-45 lb-ft (54-61 N-m).

FOLLOW-ON TASKS: l Install air compressor (para. 11-3).

l Install accessory drive pulley (para. 3-70).

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