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TM 5-2420-222-20-3
BACKHOE CONTROL VALVE LEVERS AND LINKAGE (SERIAL NUMBERS 235786 THRU 235999 ONLY)
This task covers:
a.
Removal (page 2-1302)
e.
Repair (page 2-1308)
b.
Disassembly (page 2-1303)
f.
Assembly (page 2-1308)
c.
Cleaning (page 2-1306)
g.
Installation (page 2-1312)
d.
Inspection/Replacement (page 2-1308)
INITIAL SETUP
Tools
Materials/Parts - Continued
Extension, 1/2-inch drive, 10-inch
Pin, cotter, connector link pin
Hammer, ball-peen, 1-pound head
(six required)
Handle, ratchet, 1/2-inch drive
Pin, cotter, handle mount pin
Pliers, long roundnose
(two required)
Pliers, snapring
Pin, cotter, pivot shaft (two required)
Punch, straight drive-pin, 1/4-inch
Rags, wiping (item 21, Appendix C)
Socket, 1/2-inch drive, 9/16-inch
Solvent, drycleaning (item 28, Appendix C)
Threading set, screw
Vise, machinist’s
Personnel Required
Materials/Parts
One
Detergent, GP (item 7, Appendix C)
Equipment Condition
Grease (LO 5-2420-222-12)
Lockwasher, mounting frame screw
Backhoe valve box cover removed
(four required)
(page 2-1157)
ACTION
LOCATION
ITEM
REMARKS
REMOVAL
1. Six spool devises
Six cotter pins (3)
a.
Using long roundnose pliers,
(1) and six
straighten ends and pull out.
connector pins (2)
b.
Get rid of.
2. Six spool devises
Six connector
Take out.
(1), two connector
pins (2)
links (4), and
four connector
links (5)
3. Mounting frame (6)
Four bolts (8),
a.
Using 9/16-inch, 1/2-inch drive
and backhoe valve
washers (9), lock-
socket, 10-inch extension, and ratchet
box (7)
washers (10), and
handle, unscrew and take apart.
nuts (11)
b.
Get rid of lockwashers (10).
2-1302
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