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TM 5-2420-222-20-2
BACKHOE VALVE BOTTOM COVER
This task covers:
a.
Removal (page 2-1154)
c.
Inspection/Replacement (page 2-1155)
b.
Cleaning (page 2-1154)
d.
Installation (page 2-1156)
INITIAL SETUP:
Tools
Materials/Parts - Continued
Handle, ratchet, 3/8-inch drive
Rags, wiping (item 21, Appendix C)
Socket, 3/8-inch drive, 7/16-inch
Solvent, drycleaning (item 28, Appendix C)
Materials/Parts
Personnel Required
Lockwasher, cover screw
One
(two required)
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1. Backhoe valve box
Two screws (3),
a.
Using 7/16-inch, 3/8-inch drive socket
(1) and valve bottom
lockwashers (4),
and ratchet handle, unscrew and take
cover (2)
and washers (5)
out.
b.
Get rid of lockwashers (4).
2. Backhoe valve
Valve bottom
Take off.
box (1)
cover (2)
CLEANING
NOTE
For more information on how to clean parts, go to General Maintenance Instructions (page 2-137).
WARNING
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use only in
a well ventilated area. Avoid contact with skin, eyes, and clothes and don’t breathe vapors. Do not use
near open flame or excessive heat. The flashpoint is 1000F to 1380F (380 to 590C). If you become dizzy
while using cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes is made,
wash your eyes with water and get medical aid immediately.
2-1154
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