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

Page: 1115 / 1956

PAGE 3
Feb 28/07 6D21
39-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(2) Installation
(a) Place the instrument in its proper panel cutout and secure with screws.
NOTE: For those instruments which install through the front of the panel, connecting
plumbing and / or electrical connectors can be done from the front of the panel
before the instrument retaining screws are installed. After the connections are
secure, slide the instrument into place and install the retaining screws.
(b) Connect the plumbing and/or electrical connectors to back of instrument.
(c) Check instrument operation.
B. Rack-Mounted Avionics
Most avionics are rack-mounted front-removable units generally secured to the instrument panel
tray/rack by a single jackscrew located in the center of their faceplate.
(1) Removal
(a) Insert an appropriate size (generally 3/32 inch) allen wrench into the jackscrew access
hole in the faceplate.
(b) Unscrew the jackscrew in a counterclockwise direction.
(c) Slide the avionics unit aft and out of the instrument panel tray/rack.
(2) Installation
NOTE: Inspect the front of the panel-mounted avionics tray/rack to verify it is not significantly
inset from the panel. If so, correct the tray/rack installation before proceeding.
NOTE: The high insertion forces required to seat a unit with "high density" connectors tend to
limit the effectiveness of the first seating attempt. Accordingly, the following procedure
requires sequential applications of force, and subsequent tightening of the jackscrew,
to ensure all connectors seat properly.
(a) Slide the avionics unit into the instrument panel rack and forward applying a moderate
insertion force.
(b) Insert an appropriate size (generally 3/32 inch) allen wrench into the jackscrew access
hole in the faceplate and tighten to remove any slack, but do not try to "pull" unit into place
with the jackscrew.
(c) Apply additional insertion force to front of unit.
(d) Tighten jackscrew again.
(e) Apply additional insertion force to front of unit.
(f) Finish tightening jackscrew.
(g) Ensure that bezel is "tight" against panel.
2. Circuit Breaker Panels (See Figure 3.)
Circuit breakers are installed on both the pilot’s and copilot’s side. Should a circuit breaker be replaced or
added, exercise extreme caution ensuring the breakers are in proper mechanical alignment, any
insulators that are called out are installed correctly, and all electrical wiring and connections meet
aviation standards. Do not deviate from the parts manual requirements when replacing circuit breakers.