Goulds Pumps VS - IOM - Manual (Page 19)

7-10 BOWL BEARING INSTALLATION
Press the bearing into all the bowls by using an
arbor press or equivalent. Press the bearing in
from the bottom end of the hub until the bottom
end of the bearing is flush with the bottom end of
the hub.
7-11 TURBINE BOWL WITH TAPERLOCK
– REASSEMBLY
A. Secure the submersible assembly jig to the
motor end of the motor adapter (See fig. 7-3).
Be sure to use the proper jig for the motor
frame size the bowl assembly is intended to
adapt to.
B. Put some grease in the suction bearing of the
motor adapter. Slide the shaft through the
bearing. Secure the shaft in place by locking
the shaft to the assembly jig with a special
long bolt or all thread and a hex nut.
(See Fig. 7-3)
Figure 7-3 Assembly Jig
C. Slip impeller over the shaft. Then slip taper-
lock over the shaft with smaller end towards
impeller. A screwdriver can be used to
spread the taperlock for ease in slipping over
the shaft.
D. Hold impeller firmly against the motor adapter
and drive the taperlock into place with the
taperlock driver. (See Figure 7-3) After the
impeller is secured in position, the top end of
the taperlock should be 1/8” above the
impeller hub.
Fig. 7-4 Install the Impeller
E. Put a little grease on the shaft where the
intermediate bearing will be. Slip intermedi-
ate bowl over the shaft and bolt or screw it
onto the motor adapter.
F. Place the next impeller over the shaft and
continue to assemble as explained above.
G. After assembling the last impeller, slide the
upthrust washer over the shaft before assem-
bling the top intermediate.
H. Slide the discharge case and top intermediate
bowl over the shaft and bolt it to the 2nd
intermediate bowl. If the pump has built-in
check valve, install the check valve before
installing the discharge adapter.
I. When the bowl is completely assembled,
unlock the shaft and remove the assembly jig.
Rotate the shaft by hand to see whether it
rotates freely. Push the shaft all the way in
and then pull it all the way out to check the
lateral clearance. The lateral should be
between 0.187" to 0.250".
J. Install the square key in the keyway at the
motor end of the pump shaft. Slide the shaft
coupling over the shaft and secure it to the
key with two setscrews.
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