TM 9-2320-269-20-2
ELEVATION HYDRAULIC CYLINDER
This task covers:
a. Removal
c. Inspection
e.
Pre-Load Check of Bearing
b. Disassembly
d. Reassembly
f.
Installation
INITIAL SETUP
Tools
Tools - Continued
Anchor, dead man, 2,000 lb
Wrench, open-end, 7/8-inch
Board, support, 8-in x 8-in x 8-ft
Wrench, torque, 1/2-inch drive,
(two required)
0 - 150 ft-lb capacity
Drift, brass, 3/4-inch
Gage, pressure, 5000 psi capacity
Materials/Parts
Hammer, ball-peen, machinist's
Hoist, overhead with lifting chains
Plugs, dust
Key, socket-head screw, 3/16-inch
Rags, wiping (item 24, appendix C)
Key, socket-head screw, 1/4-inch
Solvent, drycleaning (item 28, appendix C)
Punch, drive pin, 3/8-inch
Tags, marking (item 29, appendix C)
Socket, deep well, 1/2-inch drive,
9/16-inch
Personnel Required
Wrench, open-end, 9/16-inch
Two
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
WARNING
Avoid contact with hydraulic fluid. Hydraulic fluid, if splashed on skin or in eyes, can cause
irritation.
1.
Two body
Derrick leg (2)
Using two support boards, support
compartments (1)
leg (2) by laying wood underneath leg
and across body compartments.
2.
Turret assembly
Elevation
Support with overhead hoist and
(3) and derrick
cylinder (4)
chains.
leg (2)
3.
Elevation
Two swivel adapters
a. Using 7/8-inch wrench, unscrew and
cylinder (4)
(5) and (6) with
take off.
hose assemblies (7)
b. Tag hoses (7) and (8).
and (8)
c. Plug adapters (5) and (6) with dust
plugs.
2-1086
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