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TM 5-2420-222-20-3
BACKHOE CONTROL VALVE-TO-MANIFOLD OIL LINES (SERIAL NUMBERS 235786 THRU 235999 ONLY) -
CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL - CONTINUED
WARNING
Do not attempt to disconnect hydraulic lines and fittings while engine is running or
before hydraulic system pressure has been released. When engine is running,
hydraulic system is under pressure. Hydraulic system pressure should be 0 psi (0
kPa) before lines are disconnected. A line or fitting disconnected under pressure
will blow off with a lot of force and could cause serious injury to personnel.
Be careful when draining hot fluids. Wear gloves to protect your hands from hot
parts and fluids or severe burns could result.
1.
Adapter (1)
Hose (2)
a.
Place drain pan underneath.
b.
Using 1 118-inch and 1 1/4-inch open-
end wrenches, unscrew and take out.
c.
Tag (page 2-137).
2.
Union adapter (3)
Adapter (1)
a.
Note relative position for proper
placement during installation.
b.
Using 1 114-inch and 1 3/8-inch open-
end wrenches, unscrew and take out.
3.
Valve (4)
Union adapter (3)
a.
Using 1 1/4-inch box wrench, unscrew
with assembled
and take out.
packing (5)
b.
Plug valve (4) (page 2-137).
4.
Union adapter (3)
Packing (5)
a.
Using pocket knife, take off.
b.
Get rid of.
5.
Elbow (6)
Hose (2)
a.
Place drain pan underneath.
b.
Using 1 1/8-inch and 1 1/4-inch open-
end wrenches, unscrew and take out.
c.
Tag (page 2-137).
6.
Elbow (6) and
Nut (8)
Using two 1 1/4-inch open-end
manifold (7)
wrenches, loosen.
7.
Manifold (7)
Elbow (6) with
a.
Note relative position for proper
assembled parts
placement during installation.
b.
Using 1 1/4-inch open-end wrench,
unscrew and take out.
c.
Plug manifold (7) (page 2-137).
d.
Get rid of drained fluid (page 2-137).
2-1430
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