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

Page: 1493 / 1956

PAGE 23
Feb 28/07 7I23
77-40-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(15) Percent Power (EDI only - S/N’s 4636132 thru 4636374 )
(a) Another feature of the EDI is the percent power mode (Figure 2B). To enter this mode
momentarily depress the percent power (% PWR) button (middle button on the right side
of the EDI). This will bring up the percent power page with the following parameters listed.
Manifold Pressure (MAP), RPM, Approximate Fuel Flow (~FF) and Percent Power (%
PWR). A desired percent power setting can be chosen by first depressing the set button
on the lower right side of the EDI. Depressing this button toggles between the percent
power and RPM parameters, causing the active parameter to flash. Once the percent
power parameter is active the power can be cycled up or down by depressing the
appropriate up and down arrow keys on the left side of the display. The % power range is
that which can be selected is from 45% to 80% in 5% increments.
(b) As % power is changed, a suggested approximate value for manifold pressure and fuel
flow will be displayed. If a different RPM is desired, the select button can be depressed to
toggle the active parameter to the RPM display, and the up/down arrow buttons can be
used to vary the RPM in 100 RPM increments. This variation in RPM changes expected
values of MAP and Fuel Flow accordingly. Once the desired % PWR and RPM
combination are chosen pressing of the instrument button (INST) will return to the
instrument display mode.
D. Calibration
Transicoil Electronic Module Instrument System (EMIS) components (i.e. - QDI/EDI and Dual
Analog Module Indicators) can be calibrated against the criteria in Chart 3, except for Fuel Quantity
and Cylinder Head Temperature (CHT).
Fuel Quantity calibration specifications and procedures are in Section 28-40-00.
CHT indicator calibration specifications and procedures are in Section 77-20-00.
Percent Power Mode
Figure 13
Effectivity
4636132 thru 4636374