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2. Decouple the bearing frame
from the pump by removing the
four bolts that connect the
bearing frame to the pump rear
casing support. Use the
jackscrews provided to safely
decouple the outer drive from
the inner drive. If the bearing
frame happens to be an older
model without jackscrews,
manually pull on the bearing
frame to decouple the outer
drive from the inner drive.
Fig. 12-3: Bolts to Connect
Bearing Frame
Fig. 12-4: Jackscrews to
Decouple Drives
3.
Disconnect the outer drive(9)
from the shaft by removing the
3/8” NPT plug to expose the two
set screws that secure the outer
drive to the shaft. Loosen the set
screws with the T handle long
3/16” Allen wrench.
Note: When a two-piece outer
drive assembly is installed, it is
possible to remove only the
OMR, leaving the hub mounted to
the drive shaft. To remove the
OMR, remove the two (2)
countersunk, flat mounting
screws on the interior bottom
surface of the OMR. If needed,
¼ - 20 UNC jackscrews are
available.
Fig. 12-5: Remove 3/8” Plug
to Expose Set Screws
Fig. 12-6: Loosen Set Screws
4.
The outer drive or OMR should
slide off the shaft by hand. If not
there may be oxidation buildup
between the outer drive and the
shaft. Use a
nonmetallic
mechanical puller and the ¼-20
UNC holes provided to extract
the outer drive. Do not force the
outer drive off the shaft since this
could damage the bearings or
labyrinth seal.
Caution: Use nonmetallic tools
to avoid personal injury or
damage to the parts.
Fig. 12-7: Slide Outer Drive
off Shaft or OMR from
Adapter Hub
Fig. 12-8: Slide Outer Drive
off Shaft or OMR from
Adapter Hub