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TM 5-2420-222-20-3
MANIFOLD-TO-JAW CONTROL VALVE OIL LINES (SERIAL NUMBERS 235786 THRU 235999 ONLY)
This task covers:
a. Removal (page 2-1456)
c
Inspection/Replacement (page 2-1460)
b. Cleaning (page 2-1459)
d.
Installation (page 2-1460)
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
Tags, marking (item 30, Appendix C)
Materials/Parts
Personnel Required
Detergent, GP (item 7, Appendix C)
One
Packing, elbow
Packing, straight adapter
Equipment Condition
Hydraulic system pressure released
(page 2-1191)
ACTION
LOCATION
ITEM
REMARKS
NOTE
Both manifold-to-jaw control valve oil lines are maintained the same way except as noted. Return
oil line is shown. Repeat procedures as needed for pressure oil line.
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.
2-1456
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