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TM 5-2420-222-20-3
BACKHOE SWING CYLINDERS
This task covers:
a. Removal (page 2-1709)
d. Inspection/Replacement (page 2-1717)
b. Disassembly (page 2-1714)
e. Assembly (page 2-1717)
c. Cleaning (page 2-1716)
f. Installation (page 2-1718)
INITIAL SETUP
Tools
Materials/Parts
Backhoe swing cylinder pin removal
Cotter pin, swing frame pin (two required)
tool (Appendix D)
Packing, elbow to cylinder
Block, wood
Packing, elbow to cylinder
Driftpin, brass-tipped, 3/4-inch
Rags, wiping (item 21, Appendix C)
Hammer, ball-peen, 1-pound head
Solvent, drycleaning (item 28, Appendix C)
Hammer, ball-peen, 2-pound head
Tags, marking (item 30, Appendix C)
Handle, ratchet, 1/2-inch
Handle, ratchet, 3/4-inch
Personnel Required
Knife, pocket
Pan, drain
Two
Pliers, retaining ring
Pliers, slip-joint multiple tonque
Equipment Condition
and groove
Punch, drive-pin, straight, 1/4-inch
1.
Backhoe valve box cover removed
Socket, 1/2-inch drive, 15/16-inch
(page 2-1157)
Socket, 3/4-inch drive, 11/8-inch
2.
Backhoe valve bottom cover removed
Wrench, open-end, 5/16-inch
(page 2-1154)
Wrench, open-end, 7/16-inch
3.
Hydraulic system pressure released
Wrench, open-end, 5/8-inch
(page 2-1191)
Wrench, open-end, 11/16-inch
Wrench, open-end, 7/8-inch
(two required)
Wrench, open-end, 1-inch
Wrench, open-end, 1 1/16-inch
Wrench, open-end, 11/8-inch
Wrench, open-end, 11/4-inch
Wrench, open-end, 1 3/8-inch
ACTION
LOCATION
ITEM
REMARKS
NOTE
Both backhoe swing cylinders are maintained the same way except as noted. One side is shown.
Repeat procedures for other side as needed.
2-1708
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