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TM 1-4920-458-13&P
4-22. REMOVE AND REPLACE ALTIMETER SHUT-OFF VALVE (Cont) (Sheet 2 of 2)
4-22.1.
REMOVAL
a.
Position handle (1) to "OPEN" position.
b.
Remove screw (2) from end of handle (1) and remove handle (1) from valve (3).
NOTE
Prior to removal of valve, note location of elbow fittings in relation to control panel.
c.
Remove four mounting screws (4) from panel (5) and remove valve (3) from panel (5).
d.
Tag and disconnect three hoses (6) from fittings (7 and 8).
e.
Remove four fittings (7, 8 and 9) from valve (3).
4-22.2.
INSTALLATION
a.
Apply Sealube (D6) to four fittings (7, 8 and 9) before installing into valve (3).
b.
Install four fittings (7, 8 and 9) into valve (3).
c.
Install three hoses (6) to fittings (7 and 8) before mounting valve (3) and remove tags.
d.
Position valve (3) into panel (5) and secure with four mounting screws (4).
e.
Place handle (1) on valve (3) and orient to "OPEN" position.
f.
Install screw (2) through handle (1) to valve (3).
4-22.3.
FOLLOW ON MAINTENANCE
Performance check (para. 2-5)
END OF TASK
4-21
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