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STA-RITE C Series Owner's Manual page 7

Centrifugal pumps

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Maintenance
Figure 3
1" Standard Pipe
Cardboard
Washer
(Supplied with seal)
Stationary Seat
Figure 4
INSTALLING NEW SEAL
1. NOTICE: Seal faces are highly polished and lapped. Handle with
care. Any mar, nick or scratch on seal face will cause it to leak.
BE SURE to install with polished faces toward each other.
2. Clean polished surface of ceramic seat with clean cloth.
3. Wet O-Ring around ceramic seat with liquid soap.
4. Press stationary (ceramic) half of seal cavity into cavity firmly and
squarely with thumb pressure. If it does not seat properly, remove and
place seal face up on bench. Re-clean adapter/seal plate cavity. Seal
should now seat correctly.
5. If seal does not seat after re-cleaning adapter/seal plate cavity, place
a cardboard washer over polished face of seal and carefully press
into place using a piece of 1" standard pipe as a press (Figure 4).
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NOTICE: BE SURE you do not scratch seal face.
6. Dispose of cardboard washer and recheck seal face to be sure it is
free of dirt, foreign particles, scratches and grease.
7. Inspect shaft and shaft sleeve to be sure they are clean.
8. Re-install O-Ring, shaft sleeve and slinger on shaft.
NOTICE: A small amount of grease or Never-Seez under shaft sleeve
will help prevent shaft and sleeve from freezing together when pump
is in service.
9. Remount adapter/seal plate to motor, being careful not to scratch seal
face.
10. Apply liquid soap to inside diameter and outside face of rubber drive
ring on rotating half of seal.
11. Slide seal assembly onto shaft sleeve (sealing face first) far enough
so that seal spring is located on shaft sleeve.
NOTICE: Be careful not to nick carbon seal face when passing it
over end of shaft sleeve.
12. Slide impeller and gaskets onto shaft with key in position. Be sure to
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maintain proper order as shown in Exploded View, Page 9.
13. Install washer and impeller screw on end of shaft and tighten screw
until it is snug. This should locate seal in place and bring seal faces
together.
14. Reinstall motor, adapter and impeller assembly on volute, using new
gasket.
15. Reinstall motor hold-down bolts.
16. Check all bolts for tightness.
7

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Cc series