Main WheelBF GoodrichCMM 32-45-79

3-1543/3-1543-1

Name: 3-1543/3-1543-1 — Pilatus Main Wheel
Brand: BF Goodrich
SKU: 3-1543/3-1543-1
Availability: InStock

Pilatus

PC-12

Alternative Part Number959-56-01-501

Variants3-1543·3-1543-1

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This CMM Covers Multiple Variants

This CMM covers multiple wheel variants. Effectivity codes (A, B, C…) in the parts list map to the variants shown below.

3-1543

8.5x10-10

3-1543-1

8.5x10-10

Overview

The 3-1543/3-1543-1 is a main wheel assembly used on Pilatus PC-12. Manufactured by Goodrich.

Material

Aluminum

Manufacturer

BF Goodrich

CMM Reference

32-45-79

Aircraft

Pilatus

Maintenance Schedule

Eddy Current / NDTEvery tire change

OverhaulDo added inspections at tire changes 5, 10, 15, 20, 23, 26, 29, 30 and after tire change 30, do added inspections at every tire change.

Wear Pointsbearings, o-ring grooves, corrosion

Penetrant Inspection → Overhaul

Per CMM: Per CMM, any wheel requiring penetrant inspection is processed as an overhaul. Owners may elect overhaul at any tire change to extend service life.

Parts Replaced at Tire Change

Every tire change replaces the tire, the main wheel-half preformed packing (O-ring), the valve cap, and the valve core. Specific part numbers and dash sizes vary by wheel and are pulled from the CMM at the time of service.

Always Replaced

Seals & O-Rings

68-216O-ringQty 1

Hardware

TRVC5Cap, ValveQty 1

TRC4Core, ValveQty 1

Replaced If Needed

Seals & O-Rings

MS35489-13Grommet (Used only on Item 15A)Qty AR

TRRG30O-ringQty 1

During tire change or NDT inspection, additional parts beyond the routine four may require replacement if they fail inspection or meet the rejection criteria defined in the CMM.

Parts Replaced at Overhaul

A full overhaul includes all parts replaced at tire change (listed above), plus the following components inspected and replaced per the CMM:

Seals & O-Rings

MS28775-014O-ringQty 2

68-450O-ringQty 4

Fuse Plugs

49-155-1Plug, Thermal Relief (Post SB 848) (Used only on Item 125A) (Part can be cadmium plated) BQty AR

Other Parts on the Wheel

These components are part of the wheel assembly but are not replaced during a standard tire change or overhaul. They are only replaced when inspection per the CMM identifies a rejectable condition. APSS stocks or sources these parts on request — contact us for current availability.

Bearings

LM501349-2_629Cone, Bearing * (Supsds Item 60)Qty AR

LM501310-2_629Cup, Bearing * (Supsds Item 110)Qty AR

Seals & O-Rings

68-920Seal, GreaseQty 2

Fasteners

MS35207-260Screw (Used only on Item 15)Qty 6

NAS1298-3-1Screw (Used only on Item 15A)Qty 6

AN960C10LWasher, Flat (Used only on Item 15)Qty 6

UR293Ring, RetainingQty 2

42FLW524Nut, Self-Locking (Part can be cadmium plated)Qty AR

MS20002C5Washer, Countersunk (Part can be cadmium plated)Qty AR

43-1347Bolt (Part can be cadmium plated)Qty AR

NAS1102E3-6Screw (Used only on Item 125A) (Post SB 848) (Part can be cadmium plated)BQty 6

Heat Shields

72-291Shield Assembly, Heat (Part can contain ceramic fibers) (Used only on Item 125)AQty 6

Hardware

31-139-1Fairing (Repls Item 15)Qty 1

49-329Plug, Fairing (Used only on Item 15)Qty AR

211-51Valve Assembly **Qty 1

TR740-02Stem, Valve 1 -Items not illustrated RF = Reference AR = As Required *Refer to paragraph 1.D. **Refer to paragraph 1.E. *** Refer to paragraph 1.FQty AR

49-338Plug, OverinflationQty 1

SR192LSlimsert®Qty 6

SRW192LSlimsert® (Oversized)Qty AR

Wheel Components

The structural components of the wheel assembly itself. These are not replaced on a standard service and come into play only when damage, corrosion, or cracks exceed the repair limits established by the CMM.

Wheel Halves

300-817Wheel Half Assembly (Outer) (True P/N is 300-817OPT1)Qty 1

300-817Wheel Half Assembly (Outer) (White Urethane Paint) (True P/N is 300-817OPT2)Qty AR

10-1597Wheel Half, Outer (Non-Procurable)Qty AR

300-818-1Wheel Half Assembly (Inner) (Post SB 848)BQty 1

10-1598Wheel Half, Inner (Non-Procurable)Qty AR

Wheel Components

170-625-2Insert (Post SB 848) (Used only on Item 125A) BQty AR

3591-3CN190Insert, Heli-Coil® (Replds Item 145)Qty AR

Inspection Criteria

General

General overhaul criteria — see the CMM for full specifications and numeric limits:

Drive keys: replace if damaged, corroded, or loose.
Heat shield: replace if cracked, burned, or mechanically damaged.
Bolts and nuts: replace if cracked, corroded, thread-damaged, or failing the back-off torque test.
Bearings (cones and cups): replace if spalled, discolored from heat, pitted, or showing any surface wear.
Wheel halves: replace if cracked, out-of-round beyond CMM limits, or showing seal-groove damage.
Preformed packings and O-rings: replace at every disassembly.
Retaining rings and lockwire: replace whenever removed.