Landing Gear - Piper Arrow IV Turbo Maintenance Manual

SCHEDULED SERVICING.

LANDING GEAR.

The landing gear consists of tires, brakes and oleo strut assemblies. These should be inspected for proper
gear extension, scored piston tubes, possible hydraulic fluid leakage and security and condition of all
connection points. Check the brake linings for wear and frayed edges, and brake discs for scoring. Replace if
found necessary. Checked for proper adjustment of downlock hooks, looseness of drag links and side brace
links. Minor servicing is described in the following paragraphs, and for detailed service and overhaul
instructions refer to Chapter 32.
OLEO STRUTS.
The air-oil type oleo strut should be maintained at proper strut tube exposures for best oleo action. The
nose gear strut must have approximately 2.75 inches of piston tube exposed, while the main gear strut requires
approximately 2.0 inches of tube exposure. These measurements are taken with the airplane sitting on level
surface under normal static load. (Empty weight of airplane plus full fuel and oil.) If the strut has less tube
exposure than prescribed, determine whether it needs air or oil by rocking the airplane. If the oleo strut
oscillated with short strokes (approximately one inch) and the airplane settles to its normal position within one
or two cycles after the rocking force is removed, the oleo strut requires inflating. Check the valve core and
filler plug for air leaks, correct if required, and add air as described in Inflating Oleo Struts. If the oleo strut
oscillates with long strokes (approximately three inches) and the airplane continues to oscillate after the
rocking force is removed, the oleo struts require fluid. Check the oleo for indications of oil leaks, correct if
required and add fluid as described in Filling Oleo Struts. For repair procedures of the landing gear and/or oleo
struts, refer to Chapter 32.
Do not release air by removing the strut valve core or filler plug.
Depress the valve core pin until strut chamber pressure has
diminished.
Dirt and foreign particles form around the filler plugs of the
landing gear struts, therefore, before attempting to remove these
plugs, the tops of the struts should be cleaned with compressed
air and/or with a dry solvent.
PIPER AIRCRAFT
PA-28RT-201 / 201T
*MAINTENANCE MANUAL
—WARNING—
—CAUTION—
1D14
12-20-03
Page 12-07
December 1, 1978