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TM 5-2420-222-20-3
JAW CYLINDER OIL HOSES
This task covers:
a.
Removal (page 2-1544)
c.
Inspection/Replacement (page 2-1547)
b.
Cleaning (page 2-1546)
d.
Installation (page 2-1547)
INITIAL SETUP
Tools
Materials/Parts - Continued
Knife, pocket
Rags, wiping (item 21, Appendix C)
Pan, drain
Solvent, drycleaning (item 28, Appendix C)
Wrench, open-end, 11/16-inch
Tags, marking (item 30, Appendix C)
(two required)
Wrench, open-end, 3/4-inch
Personnel Required
Wrench, open-end, 7/8-inch
One
Materials/Parts
Equipment Condition
Detergent, GP (item 7, Appendix C)
Packing, elbow
Hydraulic system pressure released
(page 2-1191)
ACTION
LOCATION
ITEM
REMARKS
NOTE
Both jaw cylinder oil hoses are maintained the same way except as noted. Jaw cylinder head end oil hose
is shown. Repeat procedures as needed for jaw cylinder head end oil hose.
REMOVAL
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.
2-1544
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