Planetary Gears: Testing and Inspection
INSPECTION1. Inspect low/intermediate sun gear assembly gear teeth, thrust bearing surfaces, and bushing surface for damage or excessive wear.
2. Inspect low/intermediate carrier assembly pinion gear teeth, spline teeth, pinion gear surfaces, bushing surfaces, and pinion gear bearings.
Low/intermediate Carrier Assembly Pinion Gear End Play Inspection:
3. Check low/intermediate carrier assembly pinion gear endplay, endplay should be 0.0060.028 inch.
4. Inspect low/intermediate ring gear assembly gear teeth, spline teeth, thrust bearing surfaces, bushing surface, and lug teeth.
5. Inspect reverse/overdrive sun gear and shell assembly gear teeth, lug teeth, thrust bearing surfaces, and bushing surface for damage or excessive wear.
6. Inspect reverse/overdrive carrier assembly pinion gear teeth, clutch plate spline teeth, pinion gear bearings, thrust bearing surfaces, bushing surfaces, and captured thrust bearing.
Reverse Overdrive Carrier Assembly Pinion Gear Endplay Inspection:
7. Check reverse/overdrive carrier assembly pinion gear endplay, endplay should be 0.005-0.039 inch.
8. Inspect reverse/overdrive ring gear assembly gear teeth, spline teeth, drive sprocket teeth, thrust bearing surfaces, bushing surface, and bearings.
9. Inspect driven sprocket assembly gear teeth, parking lock lug teeth, driven sprocket teeth, thrust bearing surfaces, bearing surfaces, rivets, bushing surfaces, and lubrication holes.
10. Inspect drive chain for excessive stretching, wear, or tight links, then inspect final drive ring gear teeth.