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

Page: 653 / 1956

PAGE 3
Feb 28/07 3H13
29-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(3) Set BATT MASTER switch to OFF position.
(4) Disconnect aft baggage net assembly.
(5) Remove access panel aft of baggage compartment.
(6) Disconnect electrical wires and tie to pump.
(7) Disconnect and rapidly cap hydraulic lines and hoses.
(8) Remove four sets of mounting bolts, washers, rubber washers, and nuts.
(9) Remove pump from airplane to a clean bench.
(10) Drain reservoir into a suitable container.
B. Installation
WARNING: BE SURE AIRPLANE IS ON JACKS BEFORE TESTING HYDRAULIC SYSTEM.
(1) Place pump assembly in aircraft.
NOTE: Align pump assembly so that sight glass is visible.
(2) Install four sets of mounting bolts, washers, and rubber washers.
(3) Uncap and reconnect hydraulic lines.
(4) Fill reservoir with hydraulic fluid.
(5) Set BATT MASTER switch on.
(6) Reset hydraulic pump circuit breaker.
(7) Cycle landing gear in accordance with Landing Gear Retraction Functional Test, 32-30-00.
Verify that the gear operates smoothly and there are no leaks.
C. Disassembly (See Figures 3, 4, and 5.)
NOTE: Pump may not require complete disassembly. Follow steps (1) thru (8) as needed for
access to air vent, motor, pump, reservoir, pressure relief valves, and O-rings. Sight glass
may be removed (step (4)) without removing other parts.
NOTE: Follow steps (9) thru (13) as needed (prior steps not necessary) for removal of pressure
switches, elbow/restrictor fittings, upper manifold, and lower manifold.
NOTE: Drain pump prior to disassembly. Mark pump assembly along length for ease in aligning
parts.
(1) Remove air vent by removing lockwire, bolt, and washer. Discard O-ring.
NOTE: Hold cap plate down while removing hardware to prevent spillage of any remaining
hydraulic fluid.
(2) Remove three bolts and washers from cap plate.
(3) Remove coupler, O-ring, motor and plate. Motor and plate remain as one unit.
NOTE: If necessary, separate motor from plate by removing screws. Check and replace shaft
seal on plate as needed. Do not disassemble motor.
(4) Remove reservoir. If necessary, remove sight glass by removing four screws and gasket.
Discard gasket.
NOTE: Perform steps (5), (6), (7), or (8) only as needed for parts beneath reservoir: pump,
filters, O-rings, and pressure relief valves.
(5) Remove pump by removing lockwire, four screws, and four washers that secure oil deflector
and pump.
(6) Remove intake filters by removing retaining rings.