TM-9-2320-260-34-2

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

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

JULY 1994

TM-9-2320-260-34-2 - Page 519 of 863

TM 9-2320-260-34-2

16-20. EXTENSION CYLINDER REPAIR (M816)

THIS TASK COVERS:

a. Disassembly

c. Reassembly

b. Cleaning, Inspection, and Repair

lNITIAL SETUP

APPLICABLE MODELS

M816

TOOLS

General mechanic’s tool kit

(Appendix B, Item 1)

Spanner wrench (Appendix B, Item 136)

SPECIAL TOOLS

Bushing installer (Appendix B, Item 148)

Handle (Appendix B, Item 149)

MATERIALS/PARTS

Seal (Appendix D, Item 463)

Safety wire (Appendix D, Item 376.1)

Packing (Appendix D, Item 301)

MATERIALS/PARTS (Contd)

Packing (Appendix D, Item 310)

Crocus cloth (Appendix C, Item 8)

Link free cloth (Appendix C, Item 9)

REFERENCES (TM)

TM 9-2320-260-34P-2

EQUIPMENT CONDITION

Extension cylinder removed (para. 16-18).

GENERAL SAFETY INSTRUCTIONS

Keep fire extinguisher nearby when using

drycleaning solvent.

a

Removal

1.

2.

3.

4.

5.

6.

7.

8.

9.

Remove elbows

(8)

and (9), two couplings (6), nipples (5), and elbow (10) from extension cylinder (4).

Remove plug (7) from elbow (8).

Remove grease fitting (3) from piston rod (1).

Using spanner wrench, remove cylinder head (2) and piston rod (1) from extension cylinder (4).

Remove safety wire (11), piston rod nut (12), and washer (13) from piston rod (1). Discard safety

wire (11).

Remove two U-cup retainers (14), U-cups (15), piston (17), and cylinder head (2) from piston rod (1).

Remove two half rings (16) from piston (17).

Remove packing (18), packing nut (21), packing (20), and piston rod bushing (19) from cylinder

head (2). Discard packing (18) and packing (20).

Remove seal (22) from packing nut (21). Discard seal (22).

16-120