THE NEW PIPER AIRCRAFT, INC.
PA-32-301FT / 301XTC
MAINTENANCE MANUAL
PAGE 2
Jun 1/03
3F20
32-40-00
(2) Inspection
Inspect brake disk for cracks, excessive wear or scoring, rust, corrosion and warpage. Remove
rust and blend out nicks, using fine 400 grit sandpaper. Replace disk if cracked or when disk is
worn below minimum thickness. (Refer to Cleaning, Inspection and Repair of Wheel Brake
Assembly.) In addition also perform same inspection for nose wheel in Inspection of Nose
Wheel Assembly.
(3) Assembly and Installation
(a) Check that bearing cup for each wheel is properly installed. Install tire with tube and
wheel half with valve stem hole. Ascertain that index mark is aligned with index mark on
tire to insure proper tire, tube and wheel balance. Join two wheel halves and position
brake disk in inner wheel half. Install through bolts with nuts on valve stem side. Torque
wheel nuts to 150 inch-pounds and inflate tire.
(b) Lubricate bearing cones and install cones, grease seals and seal retainer rings. Secure
retainer with snap ring.
(c) Slide wheel on axle and secure with retainer nut. Tighten nut to allow no side play, yet
allow wheel to rotate freely. Safety nut with a flat head pin, washer and cotter pin. Install
dust cover.
(d) Position brake lining back plates between wheel and brake disk and brake cylinder on
torque plate. Insert spacer blocks between back plates and cylinder, and install four bolts
to secure assembly. If brake was disconnected, connect line and bleed brakes.
B. Nose Wheel Assembly (See Figure 2.)
(1) Removal and Disassembly
(a) Jack airplane enough to raise nose wheel clear of ground. (Refer to Jacking, 7-10-00.)
(b) To remove nose wheel, first remove cotter pin and washer that secures safety clevis pin of
wheel nut. Next remove clevis pin, wheel nut and then slide wheel from axle.
(c) Wheel halves may be separated by first deflating tire. With tire sufficiently deflated,
remove wheel through bolts. Pull wheel halves from tire by removing wheel half opposite
valve stem first and then other half.
(d) Wheel bearing assemblies may be removed from each wheel half by first removing snap
rings that secure grease seal retainers, and then retainers, grease seals and bearing
cones. Bearing cups should be removed by tapping out evenly from 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 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) Check that bearing cup for each wheel is properly installed. Install tire with tube on wheel
half with valve stem hole and then join two wheel halves. Install through bolts with
washers and nuts to valve stem side. Torque nuts to 90 inch-pounds.
(b) Lubricate bearing cones and install cones, grease seals, felt rings and seal retainer rings.
Secure with snap rings.
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