Detroit Diesel 4000 Series, Service Manual, Page: 485 / 2706

SERIES 4000 12/16V SERVICE MANUAL
20. Operate hydraulic hand pump (1) for expansion fluid until no further increase in
expansion pressure is possible, then operate force-on pump to increase force-on pressure.
See Figure 253.
21. Repeat this process until drive hub is correctly seated.
22. Select enough force-on pressure to seat shaft in approximately 5 steps.
23. When installing, make sure that expansion pressure does not exceed maximum permissible
expansion pressure p
max
.
24. See specifications on drive hub for p
max
.
25. Hydraulic installation is completed when pressure plate is seated against crankshaft.
26. Open relief bolt in hydraulic oil pump to relieve expansion pressure.
27. Maintain maximum force-on pressure (p
max
), for 60 minutes, to ensure that the expansion
fluid is expelled from the joint and static friction can build up between fixed components.
28. Disconnect high-pressure lines.
29. Allow specified retention time to elapse; remove nut, hydraulic press, pressure sleeve
and draw spindle.
NOTE:
The press-on connection must not be subjected to operational load for at least 8 hours.
All information subject to change without notice.
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