Twin Disc MG-5170DC, Service Manual

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Twin Disc, Incorporated
Cleaning and Inspection
Marine Transmission Service Manual #1020667
Gears
q
Inspect gears for scuffed, nicked, burred or broken teeth. If you cannot
remove the defect with a soft stone, replace the gear.
q
Inspect gear teeth for wear that may have destroyed the original tooth
shape. If you find this condition, replace the gear.
q
Inspect thrust faces of gears for scores, scratches and burrs. If you
cannot remove these defects with a soft stone, replace the gear.
Splined Parts
Inspect splined parts for stripped, twisted, chipped or burred splines. Remove
burrs with a soft stone. Replace the part if other defects are found.
Springs
Inspect springs for broken or distorted coils. Replace the spring if either of
these defects is found.
Flexible Hoses
Inspect all flexible hoses for cracks and sponginess. Replace damaged hoses.
Clutch Plates
Inspect clutch plates for signs of overheating, pitting, or excessive wear of
the friction and splined surfaces. Replace the clutch plates if one of these
defects is found. Refer to wear limits in Description and Specifications.