Piper SARATOGA PA-32-301 Maintenance Manual page 329

PIPER AIRCRAFT
PA-32-301/301T
MAINTENANCE MANUAL
INSPECTION OF MAIN WHEEL ASSEMBLY.
1. Visually check all parts for cracks, distortion, defects and excess wear.
2. Check the bolts for looseness or failure.
3. Check internal diameter of felt grease seals. Replace the felt grease seal if surface is hard or gritty.
4. Check tire for cuts. internal bruises and deterioration.
5. Check bearing cones and cups for wear and pitting and relubricate.
6. Replace any wheel casting having visible cracks.
ASSEMBLY AND INSTALLATION OF MAIN WHEEL. (Refer to Figure 32-7.)
1. Ascertainthat the bearing cup for each wheel is properly installed. Install the tire with tube on the
outer wheel half and then join the two wheel halves. Position the brake disc in the inner wheel half and install
the through bolts with the nuts on the valve stem side. Torque wheel nuts to 150 inch-pounds and inflate tire
(Refer to Chapter 91.)
2. Lubricate the bearing cones and install the cones. grease seals and seal retainer rings. Secure with
snap rings.
3. Slide the wheel on the axle and secure with retainer nut. Tighten the nut to allow no side play. yet
allow the wheel to rotate freely. Safety the nut with a flat head pin. washer and cotter pin. Reinstall the dust
cover.
4. Position the brake lining back plates between the wheel and brake disc and the brake cylinder on the
torque plate. Insert the spacer blocks between the back plates and cylinder, and install the four bolts to secure
the assembly. If the brake line was disconnected. reconnect the line and bleed the brakes. (Refer to Bleeding
Brakes.)
NOSE WHEEL.
REMOVAL AND DISASSEMBLY OF NOSE WHEEL. (Refer to Figure 32-8.)
1. Jack the airplane enough to raise the nose wheel clear of the ground. (Refer to Chapter 7.)
2. If wheel fairing is installed, refer to Removal and Installation of Nose Gear Fairing.
. Remove wheel by the following procedure:
A. Remove the nut and washer from one end of the axle rod and slide out the rod and axle plugs.
B. Lightly tap the axle tube out from the center of the wheel assembly by use of an object of near
equal diameter.
-NOTE-
Be certain not to damage the axle tube end in any way. This will
make removal and installation extremely difficult.
C. Remove the spacer tubes and the wheel assembly.
D. Slide down wheel fairing and remove by turning it sideways.
4. The wheel halves may be separated by first deflating the tire. With the tire sufficiently deflated.
remove the wheel through bolts. Pull the wheel halves from the tire by removing the wheel half opposite the
valve stem first and then the other half.
5. The wheel bearing assemblies may be removed from each wheel half by first removing the retainer
rings or snap ring which hold in the grease seal and seal retainers, and then the bearing cones. The bearing cup
should be removed by tapping out evenly from the inside.
32-42-01
Page 32-17
Revised: August 11. 1983
2C12