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TM 5-2420-222-20-3
MANIFOLD BLOCK-TO-BOOM BUCKET CYLINDER OIL LINES - 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.
NOTE
If right cylinder oil line is is being removed, skip step 4
4. Union (1)
Hose (2)
a.
Place drain pan underneath.
b.
Using two 1-inch open-end wrenches,
unscrew and take out.
c.
Cap (page 2-137).
d.
Plug union (11)(page 2-137).
e.
Tag (page 2-137).
NOTE
If left cylinder oil line is is being removed, skip step 5
5. Union (3)
Hose (4)
a.
Place drain pan underneath.
b.
Using 7/8-inch and 1-inch open-end
wrenches, unscrew and take out.
c.
Cap (page 2-137).
d.
Plug union (12) (page 2-137).
e.
Tag (page 2-137).
6. Adapter (5)
Hose (6)
a.
Using 7/8-inch and 1-inch open-end
wrenches, unscrew and take out.
b.
Tag (page 2-137).
7. Manifold block (7)
Adapter (5)
a.
Using 7/8-inch open-end wrench,
unscrew and take out.
b.
Plug manifold block (14)
(page 2-137).
8. Adapter (5)
Packing (8)
a.
Using pocket knife, take off.
b.
Get rid of.
2-1592
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