Piper Navajo PA-31 Service Manual page 489

PIPER NAVAJO SERVICE MANUAL
c. Replace fuel inlet shipping plug.
CAUTION
Do not exceed the above air pressures as internal dam -
age to the injector may result.
d. After filling with preservative
oil, the injector should be protected from
dust and dirt and given such protection against moisture as climatic conditions
at the point of storage require.
In most cases, storing the unit in a dry area will
be sufficient.
e. If the unit is to be stored near or shipped over salt water, the following
precautions should be observed:
1. Spray the exterior of the injector with an approved preservative oil.
2. 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.
CAUTION
Extreme caution should be exercised when handling or
working around the injector to prevent oil or fuel from
entering the air sections of the injector. As explained
previously, damage to the air diaphragm will result.
Fluid can easily enter the air section of the injector
through the impact tubes or the annular groove around
the venturi. For this reason, a protective plate should
be installed on the scoop mounting flange when per-
forming 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.
8-44.
INSTALLATION OF FUEL INJECTOR.
a. Move the injector inlet plenum aft enough to allow the injector with gasket
to be installed. Install attachment nuts, torque (Refer to LycomingTorque Specs)
and secure with pal-lock nuts.
b. Install and secure the hose between the injector and turbocharger.
c. Connect the hoses and links that were disconnected from the turbocharger.
d. Connect the fuel inlet, flow, pressure and discharger lines to the injector.
Reissued: 10/12/79
POWER PLANT
2115