Hayward NorthStar All NorthStar models - Page 10

Shaft Seal Change Instructions cont'd. - pump motor

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NorthStar™ Pump Series Page 10 of 15 Shaft Seal Change Instructions (cont'd.) 5. Rotate the impeller (item #12) counterclockwise and remove. The spring portion of the seal assembly (item #13) is now exposed. Note carefully the position of the spring seal, and remove it. Remove impeller ring (item #11) as well. NOTE - Replace motor cover to protect delicate motor parts. Removing the Ceramic Seat (See Parts Diagram on page 11 of this manual for pump component locations.) 6. Remove the seal plate (item #14). Note the tab on the top of the plate and the mating groove on the top of the motor mounting plate (item #16). 7. Press the ceramic seat with rubber cup (item #13) out of the seal plate (item #14). If tight, use a small screwdriver to tap seal out. STOP - Clean all recesses & parts to be reassembled. Inspect gaskets & replace if necessary. Seal Installation (See Parts Diagram on page 11 of this manual for pump component locations.) 8. Clean and lightly lubricate the motor shaft and seal recess in the seal plate (item #14) with a dilute solution of nongranulated liquid-type soap. Gently wipe the polished face of the ceramic seal (item #13) with a soft cotton cloth. Lubricate the rubber cup on the ceramic seat and press it firmly into the recess of the seal plate - polished side facing away from seal plate. 9. Reassemble the seal plate (item #14) to the motor mounting plate (item #16), aligning the tabs on the seal plate with the grooves on the motor mounting plate. 10. Gently wipe the black, polished surface of the spring seal assembly (item #13) with a clean, soft, cotton cloth. Press the spring seal assembly onto the motor shaft - black polished surface facing the ceramic seat. Replacing the Impeller and Diffuser (See Parts Diagram on page 11 of this manual for pump component locations.) 11. Screw the impeller (item #12) onto the motor shaft in a clockwise direction. Tighten snugly by holding motor shaft with wrench as noted in step #4. Place the impeller ring (item #11) back onto the impeller, with flange facing towards the diffuser (item #10). 12. Place the diffuser (item #10) over the impeller/impeller ring (item #11 & #12) onto the seal plate (item #14). Replacing the Motor Assembly (See Parts Diagram on page 11 of this manual for pump component locations.) 13. Fasten motor end cover by using the two (2) hex shaped screws. Slide the motor assembly with the diffuser (item #10) in place, into pump/strainer housing (item #3), being careful not to disturb the diffuser gasket (item #9). 14. Fasten assembly to pump/strainer housing (item #3) by rotating motor lock ring (item #17) down until lock engages. (Be sure housing gasket is lubricated and in place, and replace if damaged). WWW.HAYWARDPOOL.COM USE ONLY HAYWARD GENUINE REPLACEMENT PARTS

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NorthStar
™
Pump Series__________________
____________________________Page 10 of 15
WWW.HAYWARDPOOL.COM
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Shaft Seal Change Instructions (cont’d.)
5.
Rotate the impeller (item #12)
counterclockwise and remove.
The spring portion of the seal assembly (item #13) is
now exposed.
Note carefully the position of the spring seal, and remove it.
Remove impeller ring (item #11) as
well.
NOTE -
Replace motor cover to protect delicate motor parts.
Removing the Ceramic Seat
(See Parts Diagram on page 11 of this manual for pump component locations.)
6.
Remove the seal plate (item #14).
Note the tab on the top of the plate and the mating groove on the top of the motor
mounting plate (item #16).
7.
Press the ceramic seat with rubber cup (item #13) out of the seal plate (item #14).
If tight, use a small screwdriver to
tap seal out.
STOP
- Clean all recesses & parts to be reassembled.
Inspect gaskets & replace if necessary.
Seal Installation
(See Parts Diagram on page 11 of this manual for pump component locations.)
8.
Clean and lightly lubricate the motor shaft and seal recess in the seal plate (item #14) with a dilute solution of non-
granulated liquid-type soap.
Gently wipe the polished face of the ceramic seal (item #13) with a soft cotton cloth.
Lubricate the rubber cup on the ceramic seat and press it firmly into the recess of the seal plate – polished side
facing away from seal plate.
9.
Reassemble the seal plate (item #14) to the motor mounting plate (item #16), aligning the tabs on the seal plate with
the grooves on the motor mounting plate.
10. Gently wipe the black, polished surface of the spring seal assembly (item #13) with a clean, soft, cotton cloth.
Press
the spring seal assembly onto the motor shaft – black polished surface facing the ceramic seat.
Replacing the Impeller and Diffuser
(See Parts Diagram on page 11 of this manual for pump component locations.)
11. Screw the impeller (item #12) onto the motor shaft in a clockwise direction.
Tighten snugly by holding motor shaft
with wrench as noted in step #4.
Place the impeller ring (item #11) back onto the impeller, with flange facing
towards the diffuser (item #10).
12. Place the diffuser (item #10) over the impeller/impeller ring (item #11 & #12) onto the seal plate (item #14).
Replacing the Motor Assembly
(See Parts Diagram on page 11 of this manual for pump component locations.)
13. Fasten motor end cover by using the two (2) hex shaped screws.
Slide the motor assembly with the diffuser (item
#10) in place, into pump/strainer housing (item #3), being careful not to disturb the diffuser gasket (item #9).
14. Fasten assembly to pump/strainer housing (item #3) by rotating motor lock ring (item #17) down until lock engages.
(Be sure housing gasket is lubricated and in place, and replace if damaged).