TM 55-1520-240-23-10
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REMOVE BUTTERFLY VALVE OR AIR OUTLET FLAP
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanics Tool Kit, NSN 5180-00-323-4692
Airframe Repairers Tool Kit, NSN 5180-00-323-4876
Materials:
None
Personnel Required:
Medium Helicopter Repairer
Aircraft Structural Repairer
Equipment Conditions:
Off Helicopter Task
REMOVE COCKPIT DEFROST OR CABIN HEAT
BUTTERFLY VALVE
NOTE
Procedure is same to remove cockpit
defrost or cabin heat butterfly valve.
Cockpit defrost valve is shown here.
1.
Remove screw (1), washer (2), and nut (3) from
lever (4).
2.
Remove lever (4) and spacer (5) from shaft (6).
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