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

Page: 1399 / 1956

PAGE 1
Feb 28/07 7F1
73-30-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
INDICATING
NOTE: Serial numbers 4636021 and up incorporate Integrated Engine Instrumentation Systems. See
Section 77-40-00 for more information.
1. Fuel Flow Gauge
The fuel flow gauge is mounted to the right of center in the upper section of the instrument panel, and is
electrically operated by the flow transducer.
A. Troubleshooting
See Chart 1.
B. Removal
(1) Gain access to the instrument form behind the instrument panel. Disconnect the electrical
connection from the instrument.
(2) Remove the post light(s) by turning off nut.
(3) Remove the screws securing the instrument to th e panel.
(4) Remove the instrument from the panel.
C. Installation
(1) Place the instrument in its proper panel cutout and secure with screws.
(2) Install the post light(s) and secure. Do not overtighten the nut.
(3) Connect the electrical connector to the gauge.
2. Fuel Pressure Low Warning Light
Illumination of the FUEL PRESS annunciator light indicates impending fuel starvation due to insufficient
fuel pressure to the engine. See also 31-50-00 and 91-31-50.
3. Fuel Pump
A. Adjustment
To adjust the fuel pump output pressure:
(1) Loosen the jamnut on the adjustment screw to allow free movement.
(2) Adjust the pump pressure by turning screw in or out.
(3) Tighten fuel pump jamnut and perform operation check.
Trouble Cause Remedy
Pointer oscillates. Air in fuel line. Purge line.
CHART 1
TROUBLESHOOTING FUEL FLOW GAUGE