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TM 5-2420-222-20-3
BACKHOE SWING CYLINDERS - CONTINUED
ACTION
LOCATION
ITEM
REMARKS
REMOVAL - CONTINUED
2.
Elbow (1)
Hose (2)
a.
Place drain pan underneath.
b.
Using 7/8-inch and 1-inch open-end
wrenches, unscrew and take off.
c.
Cap (page 2-137).
d.
Tag (page 2-137).
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.
NOTE
If removing right swing cylinder, skip steps 3 and 4.
3.
Elbow(3)
Hose (4)
a.
Place drain pan underneath.
b.
Using 7/8-inch and 11/16-inch open-
end wrenches, unscrew and take off.
c.
Cap (page 2-137).
d.
Tag (page 2-137).
4.
Elbow (5)
Hose (6)
a.
Place drain pan underneath.
b.
Using 7/8-inch and 11/16-inch open-
end wrenches, unscrew and take off.
c.
Cap (page 2-137).
d.
Tag (page 2-137).
NOTE
Some swing cylinders have linkage pins retained by cotter pins, some have pins retained by
retaining rings. For swing cylinders equipped with retaining rings, skip steps 5 and 6.
5.
Pin (7) and
Two cotter
a.
Using multiple tongue and groove slip-
two washers (8)
pins (9)
joint pliers, straighten ends.
b.
Using 1/4-inch straight drive-pin
punch and 2-pound head ball-peen
hammer, drive out.
c.
Get rid of.
2-1710
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