Piper Aircraft Corporation Malibu Mirage PA-46-350P, Airplane Maintenance Manual

Page: 622 / 1956

PAGE 2
Feb 28/07
3G6
28-20-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
Fuel Selector Switch and Valve
Figure 1
2. Fuel Selector Valve
CAUTION: NO FIELD DISASSEMBLY OR REPAIR OF FUEL SELECTOR VALVES IS AUTHORIZED.
MAINTENANCE IS LIMITED TO REMOVAL AND REPLACEMENT OF THE WHOLE UNIT.
A. Description
The selector valve is located behind an access panel (pressure closeout plate) on the right hand
side of the fuselage interior. The valve is mounted aft of the F.S. 139.8 frame in a compartment that
is sealed off from the pressurized interior.
B. Removal
(1) Drain both fuel tanks. (Refer to 12-10-00, Draining Fuel System.)
(2) Gain access to the pressure closeout panels on the right hand side of the fuselage interior.
(3) Loosen the hose clamps which secure the fuel line pressure seal halves to the fuel line going
to the left tank.
(4) Remove the screws and washers that secure the base of the pressure closeout plate to the
frames. Slide the pressure closeout plate inboard along the fuel line going to the left tank.
(5) Disconnect the fuel selector cable from the actuating arm on the bottom of the fuel selector
valve.
(6) Disconnect the switches electrical connector.
(7) At the fittings on the valve, remove the three fuel lines that connect to the valve.
(8) Remove the screw that holds the fuel selector support to the frame.
C. Installation
(1) Position the fuel selector valve in the compartment. Secure the valve support to the frame with
the screw.
(2) Attach the three fuel lines to the valve.
(3) Reconnect the switches’ electrical connector.
(4) Reconnect the fuel selector cable to the actuating arm on the bottom of the fuel selector valve.
(5) Secure the base of the pressure closeout plate to the frames with screws and washers.