TM55-4920-432-13&P
4-18 PRESSURE THREE WAY SELECTOR VALVE
4-18
THIS TASK COVERS: REMOVAL AND INSTALLATION
Initial Set-Up:
Personnel Required:
68F Aircraft Electrician
or
35H TMDE Support Specialist
Tools and Equipment:
Tool Kit (B2) or Shop Set (B4)
Material/Parts:
Selector valve, Tape (D9)
Equipment Condition:
Power disconnected, control panel open
1.
REMOVAL:
a.
Position knob white marking on “OFF” position, remove screw (1) from end of knob; loosen two
allen screws mounted on side of knob remove knob (2) from valve.
b.
Remove mounting screws (3) from panel (4).
c.
Disconnect hoses from valve fittings (5).
d.
Remove elbow fitting from valve (6).
2.
INSTALLATION:
a.
Apply tape (D9) on to elbow fittings (5) before installing into valve.
b.
Install elbow fittings into valve.
c.
Position valve (5) into panel (4) per note and secure with four screws (3).
d.
Place knob (2) on valve stem and orient to panel and stem position. Tighten two allen screws to
valve stem flats.
e.
Install screw (1) through knob to valve stem.
f.
Install rubber hoses back to their respective location. If needed use pneumatic system diagram fig.
C-4.
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