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B. Gear Inspection
(1) Examine the involutes of the gear teeth for pitting and excessive wear.
(2) If pit marks are found, discard the gear and replace it with a new one.
(3) Examine the bearing surfaces of all gears for deep scratches.
(4) Remove minor abrasions with a fine abrasive cloth.
C. Screwed Fitting Inspection
(1) Examine the condition of the threads on screwed fittings (threaded fastenings or plugs).
(2) Remove small nicks and burrs with a small file, fine abrasive cloth, or stone.
(3) If the part cannot be repaired by polishing it, discard it and replace it with a new one.
(4) If the part has too much distortion, galling, or mutilation (caused by over-tightening or
use of an incorrect tool) replace it.
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YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
© 2021 Avco Corporation. All Rights Reserved
February 2021
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