4
2
Dismantling Procedures CR, CRN 32•45•64•90
1
2 3
Use an Allen wrench with an 8 mm tip
to loosen and remove the Coupling
Screws (Pos. 9) from the Coupling
Halves (Pos. 10a).
To remove the coupling halves, insert
a at/slot blade screwdriver in the
coupling gap and twist to free the rst
coupling half.
Loosen, but do not remove,
Coupling Guard Screws (Pos. 7a).
Remove Coupling Guards (Pos. 7)
from the Motor Stool (Pos. 1a).
In the instructions below, the numbers in parenthesis (7) indicate the position number of that part as it is shown on the Parts List and Kits diagram.
To free/remove the remaining cou-
pling half, strike the upper edge of the
coupling half with a rubber mallet.
Note: If you have multiple pumps,
do not interchange coupling
components, they are a matched set.
7
Loosen, but do not remove, the
3 mm Set Screws (Pos. 113)
from the Shaft Seal (Pos. 105).
These instructions cover the
repair of the pump after it has
been isolated from the system.
Before removing the pump from
the system, make sure all valves
are closed. Relieve any built-up
pressure by opening the vent plug
screw. The power source should be
turned off and locked out before
starting any work. Removal of
eld wiring to the motor may be
required. Color coding or numbering
the wires will aid in reinstallation.
For shaft seal change only
on a Standard unit or a Cool Top®,
follow steps 1 to 8.
Pumps built with Back-to-Back seals,
follow steps 1 to 11.
Pumps built with Tandem/Quench
seals, follow steps 35 to 49.
5
Remove the 8 mm socket Allen Screws
(Pos. 58a) from the Seal Retainer (Pos.
58). Remove the retainer.
6
Remove the Motor-to-Pump Bolts (Pos.
28a). Lift the motor off the pump.
Motor removal is not necessary. Skip
to step 6.
15 HP and UP
3 - 10 HP
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