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

Page: 1395 / 1956

PAGE 3
Feb 28/07 7E21
73-10-00
PIPER AIRCRAFT, INC.
PA-46-350P, MALIBU MIRAGE
MAINTENANCE MANUAL
(4) Remove the bolts securing the injector to the air box and induction duct.
(5) Remove the fuel injector.
B. Installation
(1) Attach the injector to the air box and induction duct.
(2) Connect the fuel inlet, flow, pressure and discharger lines to the injector.
(3) Connect the throttle and mixture control cables to the injector. Attach the control rod that
comes from the absolute pressure controller to the fuel injector. Rig controls.
(4) Pressure check for leaks.
(5) Adjust idle speed and mixture.
(6) Replace cowling.
C. Storage Preparation
CAUTION: BECAUSE FLUID CAN EASILY ENTER THE AIR SECTION OF THE INJECTOR
THROUGH THE IMPACT TUBES OR THE ANNULAR GROOVE AROUND THE
VENTURI, INSTALL A PROTECTIVE PLATE ON THE SCOOP MOUNTING FLANGE
WHEN PERFORMING ROUTINE MAINTENANCE ON THE ENGINE, SUCH AS
WASHING DOWN THE ENGINE AND AIR SCOOP, SERVICING THE AIR FILTER
(SURPLUS OIL ON THE ELEMENT), OR WHEN INJECTING PRESERVATIVE INTO
THE ENGINE PRIOR TO STORING OR SHIPPING.
Any unit taken out of service, or units being returned for overhaul, must be flushed with preserving
oil (Specification MIL-0-6081, Grade 1010), using the following procedure:
CAUTION: DO NOT EXCEED 15 PSI AIR PRESSURE AS INTERNAL DAMAGE TO THE
INJECTOR MAY RESULT.
(1) Remove plugs and drain all fuel from the injector. If available, apply 10 - 15 psi air pressure to
the fuel inlet until all fuel is discharged from the injector.
(2) Replace plugs and apply flushing oil filtered through a 10 micron filter at 13 - 15 psi to the
injector fuel inlet until oil is discharged from the outlet.
(3) Replace fuel inlet shipping plug.
(4) After filling with preservative oil, the injector should be protected from dust and dirt and given
such protection against moisture as climactic conditions at the point of storage require. In most
cases, storing the unit in a dry area will be sufficient.
(5) If the unit is to be stored near or shipped over salt water, the following precautions should be
observed:
(a) Spray the exterior of the injector with an approved preservative oil.
(b) Pack in a dustproof container. Wrap the container with moisture and vapor-proof material
and seal. Pack the wrapped unit in a suitable shipping case. Pack a one-half pound bag of
silica gel crystals in the dustproof container with injector. The bag must not touch the
injector.
3. Fuel Air Bleed Nozzle
A. Removal
The nozzles must be carefully removed as they or the cylinders may be damaged.
(1) Remove the lower engine cowl.
(2) Disconnect the fuel line from the nozzle.
(3) Remove the spring retainer and spring from the nozzle stem.