TM 9-2320-260-34-2
16-20. EXTENSION CYLINDER REPAIR (M816)
THIS TASK COVERS:
c. Reassembly
a. Disassembly
b. Cleaning, Inspection, and Repair
lNITIAL SETUP
MATERIALS/PARTS (Contd)
APPLICABLE MODELS
Packing (Appendix D, Item 310)
M816
Crocus cloth (Appendix C, Item 8)
TOOLS
Link free cloth (Appendix C, Item 9)
General mechanic's tool kit
REFERENCES (TM)
(Appendix B, Item 1)
TM 9-2320-260-34P-2
Spanner wrench (Appendix B, Item 136)
EQUIPMENT CONDITION
SPECIAL TOOLS
Extension cylinder removed (para. 16-18).
Bushing installer (Appendix B, Item 148)
Handle (Appendix B, Item 149)
GENERAL SAFETY INSTRUCTIONS
MATERIALS/PARTS
Keep fire extinguisher nearby when using
Seal (Appendix D, Item 463)
drycleaning solvent.
Safety wire (Appendix D, Item 376.1)
Packing (Appendix D, Item 301)
a Removal
Remove elbows (8) and (9), two couplings (6), nipples (5), and elbow (10) from extension cylinder (4).
1.
2.
Remove plug (7) from elbow (8).
3.
Remove grease fitting (3) from piston rod (1).
Using spanner wrench, remove cylinder head (2) and piston rod (1) from extension cylinder (4).
4.
5.
Remove safety wire (11), piston rod nut (12), and washer (13) from piston rod (1). Discard safety
wire (11).
6.
Remove two U-cup retainers (14), U-cups (15), piston (17), and cylinder head (2) from piston rod (1).
7.
Remove two half rings (16) from piston (17).
Remove packing (18), packing nut (21), packing (20), and piston rod bushing (19) from cylinder
8.
head (2). Discard packing (18) and packing (20).
Remove seal (22) from packing nut (21). Discard seal (22).
9.
16-120
