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 201 of 657

TM 9-2320-260-34-1

3-51. CYLINDER HEAD REPAIR

THIS TASK COVERS:

a. Disassembly

c. Inspection

b. Cleaning

d. Assembly

APPLICABLE MODELS

All

TEST EQUIPMENT

Portable magnetic tester (Appendix B, Item 70)

Vacuum tester (Appendix B, Item 82)

SPECIAL TOOLS

Air pressure gage (Appendix B, Item 73)

TOOLS

General mechanic’s tool kit

(Appendix B, Item 1)

Spring tester (Appendix B, Item 10)

Cleaning brush (Appendix B, Item 72)

Straightedge (Appendix B, Item 69)

Outside micrometer (Appendix B, Item 8)

Torque wrench, 1/2 in. dr. (Appendix B, Item 3)

Valve spring compressor (Appendix B, Item 81)

Soft-head hammer (Appendix B, Item 47)

Valve guide arbor (Appendix B, Item 44)

Valve guide driver (Appendix B, Item 79)

Gage block (Appendix B, Item 78)

Valve pin extractor (Appendix B, Item 80)

Guide head spacer (Appendix B, Item 36)

INITIAL SETUP

MATERIALS/PARTS

Two screw-assembled lockwashers

(Appendix D, Item 383)

Six freeze plugs (Appendix D, Items 324)

Two freeze plugs (Appendix D, Item 325)

Freeze plug (Appendix D, Item 326)

Sixteen half-keepers (Appendix D, Item 163)

Two O-rings (Appendix D, Item 270)

Lubricating oil (Appendix C, Item 21)

Crocus cloth (Appendix C, Item 53)

Prussian blue (Appendix C, Item 26)

Sealing compound (Appendix C, Item 44)

PERSONNEL REQUIRED

Two

REFERENCES (TM)

TM 9-247

TM 9-2320-260-34P-1

EQUIPMENT CONDITION

Cylinder heads removed (para. 3-40).

GENERAL SAFETY CONDITION

• Use care when removing half-keepers from valves.

• Wear eye protection when replacing valves.

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