Gears

ALLISON 1000 & 2000 PRODUCT FAMILIES GENERAL INSPECTION GUIDELINES FOR GEARS

A. Gear Teeth

Check gears for damaged or missing teeth. B. Thrust Face Surface

A. Gear Teeth

A. Inspect gears for damaged or broken teeth. Inspect gear teeth for wear that has changed the original tooth shape. If this condition is noted, replace the gear. Inspect gears for load pattern and signs of distress. Any signs of distress indicate the gear may fail during operation. Reusing distressed gears is an individual customer decision based on experience. Backlash cannot be used to establish critical gear wear. Pits, scuffs, scores or galling are typically evident long before backlash exceeds specification. B. Inspect the thrust face of gears for damage. If these defects cannot be removed with a soft stone, replace the gear.