Filling Hydraulic System Reservoir; Propeller Servicing; Electrical System Servicing - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
2-45 FILLING HYDRAULIC SYSTEM RESERVOIR. A special filling and draining service valve hookup
is provided on this airplane to facilitate service to the hydraulic system and power pack. It is located behind
the access panel on the right side of the nose section at station 46.0. A pressure pot or hydraulic test unit
can be connected to this service valve by the following procedure:
a.
Remove the access panel and the protective cap on the suction, fill and drain fitting.
b.
Connect the hydraulic fluid supply line from the supply source to the fitting and then raise the
lever to open the valve and proceed to fill the reservoir.
c.
To gravity fill the reservoir, support the supply container of hydraulic fluid higher than the fluid
level in the power pack reservoir.
d.
When filling is completed be sure to close the suction, fill and drain valve by placing the lever in
the down position before disconnecting the supply line from the service valve fitting.
e.
Reinstall the protective cap on the fitting and install the access panel.
2-46. PROPELLER.
2-47. SERVICING PROPELLER. The blades should be checked periodically for damage. Minor nicks in
the leading edge of blades should be filed out and all edges rounded. Daily inspection should include
examination of blades and spinner for visible damage and grease leakage. For further information on
propeller servicing, refer to Section VIII.
2-48. ELECTRICAL SYSTEM.
2-49. SERVICING ELECTRICAL SYSTEM. There is little service required for the electrical system. other
than making visual and operational checks of the various equipment. For more detailed information on
servicing and repair of the various components, refer to Section XI.
Revised: 10/5/83
HANDLING AND SERVICING
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