TM 55-1520-240-23-10
13-41
INSTALL BUTTERFLY VALVE OR AIR OUTLET FLAP
13-41
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Airframe Repairer’s Tool Kit, NSN 5180-00-323-4876
Materials:
Lockwire (E231)
Parts:
Rivets
Cotter Pins
Personnel Required:
Medium Helicopter Repairer
Aircraft Structural Repairer
References:
TM 55-1520-240-23P
INSTALL COCKPIT DEFROST OR CABIN HEAT
BUTTERFLY VALVE
NOTE
Procedures to install cockpit defrost
or cabin heat butterfly valve is same.
Cockpit defrost valve shown here.
1.
Install washer (1) and nut (2) on stud (3).
2.
Position spacer (4) in lever (5). Install stud (3).
3.
Install washer (6) and cotter pin (7).
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