TM 9-2320-279-34-3
M977, M985, and M984E1 Crane Maintenance Instructions (Cont)
17-39. OUTRIGGER EXTENSION CYLINDER REPAIR.
This task covers:
a. Disassembly
c. Assembly
b. Cleaning/Inspection
d. Follow-on Maintenance
INITIAL SETUP
Models
References
M977, M985
None
Test Equipment
Equipment Condition
None
TM or Para
Condition Description
Special Tools
Outrigger extension cylinder
None
on clean work surface.
Supplies
Special Environmental Conditions
Compound, sealing and thread locking,
None
Item 25, Appendix C
Solvent, dry cleaning, Item 57, Appendix C
General Safety Instructions
None
Personnel Required
MOS 63W, Wheel vehicle repairer
Level of Maintenance
General Support
a. Disassembly.
NOTE
Left and right cylinder ends are
disassembled the same way.
l Seal is a two piece assembly.
(1) Remove setscrew (1), retaining
ring (2), and seal (3) from rod (4).
(2) Remove wiper ring (5) from retaining ring (2).
(3) Remove rod assembly (4) from cylinder (6).
(4) Remove head (7) from rod (4).
(5) Remove preformed packing (8),
backup ring (9), and wear ring (10)
from head (7).
17-170.7
