Oil seals, Preformed Packings and Gaskets

TM 9--2520--215--34 0018 00--4 GENERAL MAINTENANCE INSTRUCTIONS – CONTINUED 0018 00 VISUAL INSPECTION AND MINOR REPAIR PROCEDURES -- CONTINUED Oil seals, Preformed Packings and Gaskets Replace all seal rings. Replace all composition--type seal rings or packings. NOTE Removal of a seal will usually damage it. Replace all lip--type seals. Replace all flat--type gaskets. Gears Inspect gears for burrs, wear, pitting, and broken teeth. Remove burrs using a soft honing stone. Replace gears that are excessively worn or pitted. Inspect bores of planetary pinions for wear and pitting of gearing contact area. Replace defective pinions. Splined Parts Inspect splined parts for twisted or broken splines, burrs, and excessive wear. Replace defective parts. Clutch Plates Inspect bronze--face steel plates for: Burrs Embedded metal particles Severely pitted faces Excessive wear Cracks Distortion Damaged spline teeth Remove burrs using a soft honing stone. Replace otherwise defective plates. Inspect steel plates for: Scoring Excessive wear Embedded metal Cracks Breaks Damaged spline teeth Remove burrs using a soft honing stone. Replace otherwise defective plates.