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 TM 55-1905-223-24-18-1
Replace/Repair Linear Directional Control Valve.
a. Removal, b. Disassembly, c. Repair, d. Assembly,
This task covers:
e. Replacement.
INITIAL SETUP
Equipment Condition
Tools
A i r supply to linear directional
Tool kit, general mechanic's,
control valve secured and tagged
"Out of Service - Do Not Operate" at
LPA-8 (Supply to Control Air).
Materials/Parts
(TM 55-1905-223-10)
Preformed packing P/N H134-66
Preformed packing P/H H136-93
Gasket P/N M223-006
Preformed packing P/N H135-27
Warning tags, Item 1, Appendix C
Teflon tape, Item 5, Appendix C
WARNING
To avoid personal injury; slowly open tubing
connection to allow builtup pressure to
escape.
NOTE
Cap or plug tubing connections when removed
to ensure no contamination enters lines.
REMOVAL (FIGURE 2-110)
a.
Disconnect tubing at connections (3, 4, 5, 6, and 7).
b. Remove four machine bolts and self-locking nuts (2).
c.
Remove control valve (1) from bracket (8).
DISASSEMBLY (FIGURE 2-111)
Remove machine screw (1), stop stem (2), lockwasher (3), and stem (4).
a.
b.
Remove bearing assembly (5).
c. Remove valve body (6) from housing (14).
2-490
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