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

Page: 308 / 1956

PAGE 12
Feb 28/07
2D6
21-30-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
4. Rigging Bleed Air and Bleed Air Condition System
A. Rig cabin pressure system as follows:
(1) Push cabin pressure control knob into the instrument panel.
(a) Verify that bleed dump valve is in closed position.
(b) Verify that air selector valve and bleed air shutoff valve are in open position.
(2) Pull cabin pressure control knob out from instrument panel.
(a) Verify that bleed dump valve is in open position.
(b) Verify that air selector valve and bleed air shutoff valve are in closed position.
B. Rig cabin air temperature system as follows:
(1) Push control cable knob into the instrument panel.
(2) Verify that the cabin temperature control valve is open for ram air flow and closed to the heat
muff hot air flow.
5. Pressurization System Test
(PIR-PPS60144-2, Rev. E.)
WARNING: DO NOT APPLY ELECTRICAL POWER ON BUS UNLESS AIRCRAFT IS ON JACKS AND
STRUTS ARE FULLY EXTENDED.
A. Equipment Required
Pressurization Test Cart (commercially available)
B. Procedure
NOTE: Remove cowling before beginning.
(1) Plug cabin altimeter indicator (3-in-1 indicator) sensing port (marked “C.P.”).
(2) Disconnect vacuum line at the tee on the rear of the cabin pressurization controller. Cap tee
and plug vacuum line.
CAUTION: IMPROPER SETTING WILL CAUSE DAMAGE TO CABIN PRESSURIZATION
CONTROLLER.
(3) Turn rate selector on cabin pressurization controller full clockwise. Turn cabin altitude selector
full counter-clockwise.
(4) Ensure that pilot’s storm window emergency exit, and cabin door are properly installed and
secured closed. Strap or net cabin door.
NOTE: Perform the following steps outside aircraft by monitoring test stand operation and
inspecting gauge through cockpit window.
(5) Connect instrument line connector port on test cart to the 1/4 inch bulkhead fitting on forward
pressure bulkhead.
(6) Disconnect flexible connectors at bleed air supply connections on firewall. (See Figure 1,
21-20-00 and Figure 1, 21-40-00.)
(7) Connect test cart air outlet port to either left or right flexible connector. Plug opposite flexible
connector.