Assembly And Installation Of Nose; Inspection Of Nose Wheel Assembly (B. F. Goodrich); Cleaning Of Nose Wheel Assembly (B. F. Goodrich) - Piper Cheyenne IIIA Airplane Maintenance Manual

PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Wheel Assemblies (continued)
9. Assembly and Installation of Nose Wheel (B. F. Goodrich) (refer to 32-40-00 Figure 402)
(a) If cups are removed, reinstall as follows:
(1.) Heat wheel halves to 275
°
to 300°F. Cool cups to 0°F.
(2.) Support wheel hub, paint the inside diameter of the hub with zinc chromate primer, and
press the cups into the wheel half.
NOTE: The wet zinc chromate primer lubricates parts to be pressed together and assists
in preventing galvanic corrosion between parts.
(b) Reinstall valve stem and balance weights if removed.
(c) Lubricate packing with grease (MIL-G-3545C or equivalent). Install in the wheel half packing
groove.
(d) Install tire and join the two wheel halves. Apply a generous coat of thread component
(MIL-T-554) to threads of bolts, faces of washers, and bearing face of nuts. Using the
same procedure, retighten all nuts and torque to specification given on the wheel.
NOTE: Do not use an impact wrench to apply final torque. Use a preset hand torque wrench
only.
(e) Inflate tire (refer to 6-00-00. Chart 1) and test for leakage.
(f) Repack wheel bearings with grease (MIL-G-3545C) and lubricate cups. Place bearings in
wheel assembly. Install grease seals.
(g) Install wheel and spacers in fork and insert axle. Refer to parts catalog for proper spacers
required for particular tire installed.
(h) Adjust axle bolt to allow wheel to turn freely with no side play.
10. Inspection of Nose Wheel Assembly (B. F. Goodrich)
(a) On the bolt head radius or shank, magnaflux bolts for cracks, breaks, and surface blemishes.
(b) Inspect wheel halves for cracks and breaks (particularly the bead seat, tube well, and web
junction areas) with dye check or Zyglo.
(c) Visually inspect all metal parts for pitting, corrosion, cracks, breaks, uneven wear, and other
surface defects.
(d) Inspect packing sealing surfaces for smoothness.
(e) Inspect packing for pits, cuts, and other defects. Replace as necessary.
11. Cleaning of Nose Wheel Assembly (B. F. Goodrich)
(a) Clean metal parts in solvent and air dry thoroughly.
(b) Clean rubber parts by wiping with a clean, lint-free cloth.
EFFECTIVITY:
040-999
32-40-00
Jan 10/90