Piper Navajo PA-31 Service Manual page 428

PIPER NAVAJO SERVICE MANUAL
c. Place outer wheel half (1) into tire and pull tube valve stem through valve hole. Turn tire and
outer wheel half (2) over and place the spacer (3) and inner wheel half into position and align the bolt holes
with the outer wheel half and the brake disc. Install bolts through the brake disc and inner wheel half and
washers and nuts on the outer wheel half. Torque wheel nuts per recommended torque value on name plate
of wheel.
d. Inflate tire to recommended operating pressure per Table II-I.
e.
Place the wheel on the axle and install axle nut. Tighten to allow the wheel to turn free yet not
fit loose on the axle. Safety nut and install the hub cap (14), securing with snap ring (13).
f.
Install the brake assembly by installing the brake cylinder on the torque plate, positioning the
spacer, lining back plate, and installing the bolts securing assembly. If the brake line was disconnected,
reconnect the bleed brakes.
7-46a. REPAIR OF NOSE AND MAIN WHEEL ASSEMBLIES. Repairs are limited to blending out small
nicks, scratches, gouges and areas of slight corrosion, plus the replacement of parts which are cracked or
badly corroded.
NOTE
Remove rust and blend out small nicks, using fine 400 grit
sandpaper.
Wheels may also be repainted if the parts have been repaired and thoroughly cleaned. Paint exposed areas
with one coat zinc chromate primer and one coat of aluminum lacquer.
NOTE
Never paint working surfaces of the bearing cups.
a. Bearing Cup Replacement:
1. Removal:
(a) Insert wheel half into
250 F (121
C) for
Reissued: 10/12/79
boiling water for 15 minutes or place in an oven not exceeding
15 minutes,
LANDING GEAR AND BRAKE SYSTEM
2G2