Gardner Denver Industrial Series, Parts List Operating And Service Manual

Page: 39 / 60

HF-7-602 Page 38
Note:
Maximum load applied to threaded rod must NEVER EXCEED 5 TONS.
35. Repeat step 34 to install bearing on gear-end of drive rotor shaft.
36. Verify gear-end axial clearance for both rotors. With gear-end up, rotate rotors so a feeler gauge can be
inserted between end of the rotor lobe and the inner surface of the bearing housing. Clearance should be
measured and recorded for all three lobes on both rotors.
Gear-end clearance: 0.005" min / 0.009" max
(when rotors are pushed to drive end)
Note:
Do not proceed with assembly if gear-end clearance is not correct! Refer to step 17 in Section 6
'Disassembly Instructions' to remove bearing housing. Repeat steps 25 through 36 making necessary
shim adjustments to achieve proper gear-end clearance.
37. Install bearing retainer plate (15) onto gear-end bearing housing with eight bolts (17) and lock washers (16).
Reference FIGURE 7-10.
Torque: 40 ft-lbs
Figure 7-10 – BEARING RETAINER PLATE INSTALLATION
38. Rotate assembly vertical with drive-end on top.
39. Apply AEON PD oil to drive and idler rotor bearing bores in drive-end bearing housing. Lubricate internal
surfaces and rollers of bearings with oil. Drain all excess oil from bearing before installation. Oil should not be
dripping from bearing in mounted position.
40. Install spherical roller bearing (13) by placing bearing over drive 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 against hydraulic cylinder. Press bearing onto rotor shaft using hydraulic cylinder. Reference FIGURE
7-9.
Note:
Maximum load applied to threaded rod must NEVER EXCEED 5 TONS.
41. Repeat step 40 to install deep-groove ball bearing (12) on idler rotor shaft.
42. Verify drive-end axial clearance for both rotors. Rotate unit so gear-end is up. Rotate rotors into a position so
a feeler gauge can be inserted between the end of the rotor lobe and the inner surface of the bearing
housing. Clearance should be measured and recorded for all three lobes on both rotors.
Drive-end clearance: 0.017" min / 0.025" max
(when rotors are pushed to drive end)
Note:
Do not proceed with assembly if these drive end clearance is not correct!