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TM 5-2420-222-20-3
BACKHOE CONTROL VALVE LEVERS AND LINKAGE (SERIAL NUMBERS 319995 THRU 342573 ONLY) -
CONTINUED
ACTION
LOCATION
ITEM
REMARKS
DISASSEMBLY - CONTINUED
7.
Two control
Four hand lever
Twist off.
levers (1) and
grips (3)
two four way
levers (2)
NOTE
Linkage for both four way control levers is disassembled the same way. Backhoe
bucket control lever linkage is shown. Repeat steps 8 thru 16 for backhoe boom
control lever linkage.
8.
Pivot shaft (4)
Two rings (6)
a.
Place mounting frame (5) in
and mounting
machinist’s vise.
frame (5)
b.
Using snapring pliers, take off.
9.
Mounting frame (5),
Pivot shaft (4)
Using 1-pound head ball-peen hammer and
pivot link (7),
1/4-inch straight drive-pin punch, tap
and three
out.
washers (8)
10.
Mounting frame (5)
Pivot link (7) with
a.
Take out.
assembled parts and
b.
Take mounting frame (5) out of
three washers (8)
machinist’s vise.
11.
Pivot link (7) and
Groove pin (10)
a.
Place pivot link (7) in machinist’s
action link (9)
vise.
b.
Using 1-pound head ball-peen hammer
and 1/4-inch straight drive-pin punch,
tap out.
12.
Pivot link(7)
Action link (9)
a.
Take off.
with assembled parts
b.
Take pivot link (7) out of machinist’s
vise.
13.
Action link (9)
Screw (12) and
a.
Using 1/2-inch, 1/2-inch drive socket,
and connector
special nut (13)
ratchet handle, and 1/2-inch box
link (11)
wrench, unscrew and take apart.
b.
Get rid of special nut (13).
14.
Action link (9)
Connector link (11)
Take off.
and special
washer (14)
2-1316
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