Wheels; Removal And Disassembly Of Nose Wheel; Inspection Of Nose Wheel Assembly; Assembly And Installation Of Nose Wheel - Piper SENECA II Service Manual

7-41. WHEELS.

7-42. REMOVAL AND DISASSEMBLY OF NOSE WHEEL. (Refer to Figure 7-12.)
a. Jack the airplane enough to raise the nose wheel clear of the ground.
b. To remove the nose wheel, first remove the nut from one end of the axle rod and slide out the rod
and axle plugs.
c. Lightly tap the axle tube out from the center of the wheel assembly by use of an object of near
equal diameter.
NOTE: Exercise care to avoid damaging axle tube ends. This will make removal and installation
extremely difficult.
d. Remove spacer tubes and wheel assembly.
e. Deflate the tire. Remove wheel bolts (4). Pull wheel halves from the tire by removing the wheel half
opposite the valve stem first and then the other half.
f. Remove screws (6), grease seal (8), seal retainers (7) and bearing cones (9). Remove bearing cup (10)
by tapping evenly from the inside.

7-43. INSPECTION OF NOSE WHEEL ASSEMBLY.

a. Visually check all parts for cracks, distortion, defects and excess wear.
b. Check wheel bolts for stripped or damaged threads.
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 then relubricate.
f. Replace any wheel casting having visible cracks.
7-44. ASSEMBLY AND INSTALLATION OF NOSE WHEEL. (Refer to Figure 7-12.)
a. Carefully install bearing cups (10) into each wheel half (1 and 2).
b. Install the inner tube in the tire, making certain to align the index marking on the tire with the index
marking on the tube, to ensure proper wheel balance.
c. Install the tire and tube on the wheel half with the valve stem hole, inserting the valve stem through
the valve hole.
d. Place the opposite wheel half inside the tire. Align the wheel bolt holes. install the wheel bolts (4),
with washers (3) and nuts (5) to the valve stem side and tighten (draw up) the bolts in a crisscross
fashion. Torque the nuts to 90 inch-pounds and inflate the tire to 46 psi to seat the tire bead, then
deflate the tire to proper inflation. (Refer to Section II, Table II-I.)
e. Lubricate bearing cones (9) and install cones, inner seal retainers (7) and grease seals (8). Secure
outer seal retainer with three screws (6).
f. Place one spacer tube in each side of wheel and position wheel in fork. Align and slide axle tube
through spacer tubes and wheel assembly. Install axle plugs and tie rod and secure with nuts.
Tighten the nuts until no side play is felt. yet allowing the wheel to rotate freely.
VII - LANDING GEAR AND BRAKE SYSTEM
PIPER SENECA II SERVICE MANUAL
1L4
04/30/07