REMOVE BUTTERFLY VALVE OR AIR OUTLET FLAP

INSTALL CABIN DUCTING (Continued) - TM-55-1520-240-23-10_254

REMOVE BUTTERFLY VALVE OR AIR OUTLET FLAP (Continued)

TM-55-1520-240-23-10 UH-1H/V and EH-1H Aircraft Manual
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TM 55-1520-240-23-10 13-40 REMOVE BUTTERFLY VALVE OR AIR OUTLET FLAP 13-40 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: 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). 13-131

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