Piper PA-28-161, Maintenance Manual

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PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 4
Nov 30/06
3E14
32-40-00
(d) The wheel halves (7 and 10) may be separated by first deflating the tire. With the tire
sufficiently deflated, remove the wheel through bolts (18). Pull the wheel halves from the
tire by removing the wheel half opposite the valve stem first and then the other half.
(e) The wheel bearing assemblies may be removed from each wheel half by first removing
the snap rings (1 or 16 that secures the grease seal retainers, and then the retainers,
grease seals (4 or 13) and bearing cones (6 or 12). The bearing cups (5 or 11) should be
removed by tapping out evenly from the inside.
(2) Inspection
(a) Visually check all parts for cracks, distortion, defects and excess wear.
(b) Check tie bolts for looseness or failure.
(c) Check internal diameter of felt grease seals. Replace the felt grease seal if surface is hard
or gritty.
(d) Check tire for cuts, internal bruises and deterioration.
(e) Check bearing cones and cups for wear and pitting and relubricate.
(f) Replace any wheel casting having visible cracks.
(3) Assembly and Installation
(a) Ascertain that the bearing cup (5 or 11) for each wheel half (7 and 10) is properly
installed. Install the tire with tube on the wheel half with the valve stem hole. Insert the
vale stem. Position the tire and tube so the index mark on the tire is aligned with the index
mark on the tube, to maintain proper wheel balance.
(b) Join the two wheel halves, aligning the wheel bolt holes. Install the through bolts (18) with
the washers (9 and 17) and nuts (8) to the valve stem side, and tighten the bolts in a
crisscross pattern to about 20 inch-pounds.
NOTE: On McCauley Nose Wheel Assemblies only, bushing (19) is required to prevent
tube movement.
(c) Assure there is no pressure on the tire. Torque each wheel nut to about 45 inch-pounds
before setting the final torque. Do not use power tools to torque nuts.
Torque nose wheel nuts as follows: On aircraft models which use the Cleveland Wheel
Assembly, torque nuts to the value on the wheel casting or nameplate; if that is not legible,
torque to 90 inch-pounds dry. Those aircraft models which use the McCauley Wheel
Assembly, torque nuts to 145 inch-pounds dry.
(d) Inflate the tire to the specified pressure given in Chart 1, 6-00-00.
(e) Lubricate the bearing cones (6 and 12) and install the cones, grease seals (4 or 13), felt
rings (3 or 14) and seal retainer rings (2 or 15). Secure with snap rings (1 or 16).
(f) Install the axle and spacer into the wheel assembly and install the wheel into the fork of
the strut assembly. Secure in place with an axle plug on each end, axle rod, washers and
self-locking nuts. Tighten the nuts until no side play is felt, yet allowing the wheel to rotate
freely.
(g) Turn fairing so it will fall into place and install it with the four bolts and screws in the small
plate.