Detroit Diesel 4000 Series, Service Manual, Page: 1454 / 2706

SERIES 4000 12/16V SERVICE MANUAL
[a] If shaft is worn or damaged, smooth out slight wear and damage with an emery cloth.
[b] If damage is beyond repair, replace shaft.
[c] If shaft is not worn or damaged, continue inspection.
8. Visually inspect gear for indentations and wear.
[a] If gear is indented or worn, rub down with an oilstone or an emery cloth.
[b] If damage is beyond repair, replace gear.
[c] If gear is not worn or indented, continue inspection.
9. Visually inspect threads for wear and damage.
[a] If threads are worn or damaged, rechase components.
[b] If damage is beyond repair, replace component.
[c] If threads are not worn or damaged, continue inspection.
10. Adjust bore gage and measure bearing bores in housing.
[a] If bearing bores are not within specified limits, replace components as necessary.
[b] If bearing bores are within specified limits, continue inspection.
11. Using micrometer, measure bearing seat on shaft.
[a] If limit values are exceeded, replace components as necessary.
[b] If limit values are not exceeded, continue inspection.
12. Replace cylindrical roller bearing and grooved ball bearing as part of every W6 overhaul.
13. After every pump disassembly, replace gaskets, O-rings, rotary seal and radial-lip shaft
seal.
All information subject to change without notice.
C -1308
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