Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 204

PIPER CHEROKEE WARRIOR SERVICE MANUAL
7-1. INTRODUCTION: In this section are instructions for the removal, disassembly, inspection, overhaul
and installation of the various landing gear and brake system components used for landing gear repairs and
s e rvicing, service of the brake system, and alignment of the nose gear.
7-2 . DESCRIPTION: The landing gear incorporated on the Warrior is a fixed, tricycle type, fitted with
two 6:00 x 6 main wheels and a 5:00 x 5 nose wheel. The landing gear struts are of the air-oil type. The nose
g e a r, steerable through a wide arc, enable a short turning radius in each direction. (For turning arc of the
a i rplane, refer to Table II-I.). Bungee devices, or spring assisted push rods (refer to Piper Service kit 760 934
or 764 975), are attached to the rudder pedal torque tube assemblies to aid in nose wheel and rudder centering.
A shimmy dampener is also incorporated in the nose wheel steering mechanism.
The two main wheels are equipped with a single disc hydraulic brake assembly which is actuated by a
hand lever connected to a cylinder located below and behind the center of the instrument panel, or by individual
cylinders attached to each rudder pedal. The hand lever also doubles as a parking brake and may be operated
by pulling back on the handle and pushing in on the button at the side of the handle. To disengage the parking
brake, pull back on the hand brake handle. A brake fluid reservoir is installed on the left forward face of the
engine fire wall.
7-3. TROUBLESHOOTING: Troubles peculiar to the landing gear are listed in Table VII-I, at the back of
this section, along with their probable causes and suggested remedies. When troubleshooting the landing gear
system, it may be found that it is necessary to place the airplane on jacks. If so, refer to Jacking, Section II.
7-4. LANDING GEAR SYSTEM.
7-5. NOSE LANDING GEAR.
7-6. DISASSEMBLY OF NOSE GEAR OLEO. (Refer to Figure 7-1.). The nose gear oleo strut assembly
may be removed and disassembled from the strut housing with the gear either removed from, or installed on,
the airplane.
a. Remove the lower engine cowling by:
1. Releasing the cowl fasteners, two on each side and remove the top cowl.
2. Disconnect the electrical lead to the landing light at the quick disconnect at the inside of the
bottom cowl. Remove induction air hose between filter and air box.
3. Remove the bottom cowl attaching screws from around its aft end and remove cowl.
b. Place airplane on jacks. (Refer to Jacking, Section II.)
c. Place a drip pan under the nose gear to catch spillage.
d. To remove air from the strut, depress the air valve core pin found at the top of the strut assembly.
After the pressure in the strut chamber has diminished, remove the valve core pin, and attach a small hose to
the air valve, and drain the fluid by slowly compressing the piston tube. If it is desirable to extract more fluid
from the strut chamber, remove the filler plug, insert the siphon hose and drain fluid from the upper area of the
housing.
e. To remove the strut assembly from the strut housing (4), cut the safety wire at the top of the hous-
ing that secures the steering horn attached bolt to the tube retainer nut. Then remove the steering horn attach-
ing bolt and the flat head pin, thus relieving the steering horn from the top of the strut housing.
Issued: August 22, 1973
SECTION VII
LANDING GEAR AND BRAKE SYSTEM
1I12
Island Enterprises
LANDING GEAR AND BRAKE SYSTEM