Gardner Denver 4500 Series, Список запасных частей и руководство по эксплуатации и обслуживанию

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SB--7--626 Page 18
changes, and lubricate the shaft surface. Item 45 must
fit tight against the impeller end. Sleeve 46 is now
installed on the shaft against item 45.
The mechanical seal should be assembled into the
bearing cartridge item 19 on the bench. First insert
O--ring 47 into the groove. With light oil, lubricate the
recess and press in assembly 44. Then carefully install
the bearing cartridge with seal, into the headplate.
End Clearance
To check or establish the gear--end clearance, use a
sleeve made to substitute for the gear and grip ring as-
sembly (items 5 and 6 on the parts cross section,
FIGURE 17, page 31). With the gear locking clamp in
place over the shaft end, and against the spacer
sleeve, tighten the cap screws to 40 ft. lbs/5.4 kg--m
torque. Check the clearance between the impeller
ends and gear headplate. Add or remove shims behind
the cartridge flange to establish the clearance given in
FIGURE 11, page 14. Then remove the spacer sleeve
and install gears, grip rings and locking clamps as
outlined in “Setting Impeller Clearances,” page 15.
Note finished torque value.
Drive End
Refer to FIGURE 17. Remove the drive cover. Unbolt
and remove the oil slinger from the shaft, noting its
relative position for later replacement; spread slightly
to avoid scratching the shaft. The bearing cartridges
can now be removed following the procedure described
FIGURE 17 -- DRIVE END
for the gear end, with the exception that no shims will
be found.
Re--install bearing cartridges with new seals and
O--rings.
Replace the bearings and slinger. Rotate shafts a
couple of turns to be sure there will be no interference
of the oil slinger. Remove the old drive seal and install
the gasket and drive cover. Use a paste--type gasket
compound between cleaned mating surfaces. Replace
the drive seal. Take extreme care to avoid damaging
the seal when moving it over the shaft keyway. When
reassembly is completed, lubricate.