Detroit Diesel 4000 Series, Руководство по обслуживанию, Страница: 1881 / 2706

SERIES 4000 12/16V SERVICE MANUAL
C 255.05.08 – INSPECTION AND REPAIR
Perform the following steps for inspection and repair of the flex coupling:
1. Clean all components.
2. Visually inspect adapter, ring gear and hex bolts of flex coupling for cracks using magnetic
crack-testing method with fluorescent powder.
[a] If adapter, ring gear or hex bolts of flex coupling are cracked, replace component.
[b] If adapter, ring gear or hex bolts of flex coupling are not cracked, continue inspection.
3. Visually inspect mating surface on adapter and flex coupling for evenness, wear, scoring
and pitting.
[a] If mating surfaces are uneven, worn, scored or pitted, recondition as necessary.
[b] If mating surface is beyond repair, replace component as necessary.
[c] If mating surfaces are not uneven, worn, scored or pitted, continue inspection.
4. Visually inspect flex coupling for scoring or pitting greater than maximum permissible
material removal.
[a] If flex coupling is scored or pitted greater than maximum permissible limit value,
replace as necessary.
[b] If flex coupling is not scored or pitted greater than maximum permissible, continue
inspection.
5. Visually inspect seating surface of ring gear on adapter for wear, scoring and pitting.
[a] If seating surface of ring gear is worn, scored or pitted, smooth with emery cloth
or oilstone.
[b] If damage is beyond repair, replace component.
[c] If seating surface of ring gear is not worn, scored or pitted, continue inspection.
6. Visually inspect hex bolt threads of flex coupling for wear or damage.
[a] If hex bolt threads of flex coupling are worn or damaged, replace hex bolts as
necessary.
[b] If hex bolt threads of flex coupling are not worn or damaged, continue inspection.
7. Inspect threads in adapter for condition and ease of movement.
[a] If threads in adapter are not in perfect condition or do not show ease of movement,
recut as necessary.
[b] If threads in adapter are beyond repair, replace component as necessary.
[c] If threads in adapter are in perfect condition and show ease of movement, continue
inspection.
8. Visually inspect ring gear for chipped tooth flanks and wear.
All information subject to change without notice.
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