Gardner Denver Industrial Series, Parts List Operating And Service Manual

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HF-7-602 Page 48
Figure 9-6 – FALSE BEARING INSTALLATION
24. Thread 3/4" eye bolt into end of idler rotor and lift rotor until ends of rotor lobes contact bearing
housing.
25. Using a depth micrometer, measure and record distance from top surface of outer ring of false
bearing to top surface of inner ring. Inner ring of the false bearing should extend above the outer
ring .005-.007". If inner ring does not extend above outer ring .005-.007", lower rotor and remove
eye bolt and false bearing. Install required shims (8) to achieve proper gear-end clearance.
Repeat steps 23 through 25 if necessary.
26. Lower rotor and remove eye bolt and false bearing.
27. Repeat steps 23 through 26 for drive (long) rotor.
28. Apply AEON PD oil to drive and idler rotor bearing bores in the gear-end bearing housing as well
as internal surfaces and rollers of double angular contact bearings (14). Drain excess oil from
bearing before installation. Oil should not be dripping from bearing in mounted position.
29. Install bearing by placing bearing over idler rotor shaft with identification numbers facing up.
Thread 3/4" pull rod into end of idler rotor shaft. Place bearing driver EQ144211-1 over pull rod.
Place a portable hydraulic cylinder over pull rod and onto driver tool. Install 3/4" flat washer and
nut onto pull rod and tighten it up against hydraulic cylinder. Reference FIGURE 9-7. Press
bearing onto rotor shaft using hydraulic cylinder.
Figure 9-7 – BEARING INSTALLATION
Note:
Maximum load applied to threaded rod must NEVER EXCEED 5 TONS.
30. Repeat step 29 to install bearing on gear-end of drive rotor shaft.