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TM 5-2420-222-20-3
BACKHOE CONTROL VALVE LEVERS AND LINKAGE (SERIAL NUMBERS 235786 THRU 235999 ONLY) -
CONTINUED
ACTION
LOCATION
ITEM
REMARKS
DISASSEMBLY - CONTINUED
NOTE
Linkage for both four way control levers is disassembled the same way. Backhoe
bucket control lever linkage is shown. Repeat steps 8 thru 21 for backhoe boom
control lever linkage.
8.
Pivot shaft (1)
Two rings (3)
a.
Place mounting frame (2) in
and mounting
machinist’s vise.
frame (2)
b.
Using snapring pliers, take off.
9.
Mounting frame (2),
Pivot shaft (1)
Using 1-pound head ball-peen hammer and
pivot block (4),
1/4-inch straight drive-pin punch, tap
and three
off.
washers (5)
10.
Mounting frame (2)
Pivot block (4) with
a.
Take out.
assembled parts and
b.
Take mounting frame (2) out of
three washers (5)
machinist’s vise.
11.
Handle mount (6)
Cotter pin (8)
a.
Using long roundnose pliers,
and pivot pin (7)
straighten ends and take out.
b.
Get rid of.
12.
Handle mount (6)
Pivot pin (7)
Take out.
and pivot block (4)
13.
Handle mount (6)
Pivot block (4) with
Take off.
assembled parts
14.
Handle mount (6)
Spring pin (10)
a.
Place handle mount (6) in machinist’s
and universal
vise.
block (9)
b.
Using 1-pound head ball-peen hammer
and 1/4-inch straight drive-pin punch,
tap off.
15.
Handle mount (6)
Universal block (9)
a.
Take off.
with assembled parts
b.
Take handle mount (6) out of
machinist’s vise.
16.
Connector link(11)
Spring pin (12)
a.
Place connector link (11) in
and universal
machinist’s vise.
block (9)
b.
Using 1-pound head ball-peen hammer
and 1/4-inch straight drive-pin punch,
tap out.
2-1304
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