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

Page: 633 / 1956

PAGE 5
Feb 28/07 3G17
28-40-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
“E” (Empty) Needle Tolerance
Figure 3
“F” (Full) Needle Tolerance
Figure 4
(1) Low End Gauge Check
CAUTION: USE NON-CONDUCTIVE BLADE SCREWDRIVER TO ADJUST
POTENTIOMETERS.
With both tanks completely dry, add one gallon (unusable) fuel to each tank. After the
measured amount has been put in the tank, vibrate the tank by bumping its lower surface.
Adjust potentiometers marked "Z" (clockwise to lower reading) until the analog pointers are at
the center of the "E" (empty) graduations. Allow indicators to stabilize for 30-40 seconds.
Readjust as required. Check digital readout for a "0" gallon indication. If digital does not
indicate "0", readjust appropriate "Z" potentiometer until both analog and digital read zero.
NOTE: The potentiometers are in cavities on the right and left sides of the fuel quantity
module (right potentiometer adjusts right gauge, left adjusts left gauge).
NOTE: Needles on analog gauges must not go below the "E" (empty) graduations. See
Figure 3. Tolerance on ''E" (empty indication) is ±0 gallons.