Purclean PURWATER RECLAIM 3.0, Technical Manual, Page: 83 / 97

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83
Service 10
INSTALLING NEW SEAL
Step 1. IMPORTANT: 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.
Step 2. Clean polished surface of ceramic seat with clean cloth.
Step 3. Wet O-Ring around ceramic seat with liquid soap.
Step 4. Press stationary (ceramic) half of seal into cavity firmly and squarely
with thumb pressure. If it does not seal properly, remove and place
face up on bench. Re-clean adapter/seal plate cavity. Seal should
now seat correctly.
Step 5. If seal does not seat after recleaning 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 6).
NOTE: BE SURE you do not scratch seal face.
Step 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 (Key No. 4) on shaft.
NOTE: 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.
Step 10. Apply liquid soap to inside diameter and outside face of rubber
drive ring on rotating half of seal.
Step 11. Slide seal assembly onto shaft sleeve (sealing face first) far enough
so that seal spring is located on shaft sleeve. NOTE: Be careful not
to nick carbon seal face when passing it over end of shaft sleeve.
Step 12. Slide impeller and gaskets (Key Nos. 12 and 11) onto shaft with
key (Key No. 3) in position. Be sure to maintain proper order as
shown in Exploded View, Page 11.
Step 13. Install washer, gaskets, and impeller screw (Key Nos. 14, 15, 16,
17) on end of shaft and tighten screw until it is snug. This should
locate seal in place and bring seal faces together.
Step 14. Re-install motor, adapter and impeller assembly on volute, using
new gasket (Key No. 7).
Step 15. Re-install motor hold-down bolts.
Step 16. Check all bolts for tightness.
Step 17. Pumps below water level: Close drains; open isolation valves to
fill pump. Pumps above water level: Prime pump. Open isolation
valves if they were closed at disassembly.
Step 18. When pump is full, close air vents.
Step 19. Reconnect power to pump and system is ready for operation.
1" Standard Pipe
Stationary Seat
Cardboard
Washer
(Supplied with seal)
1422 1294
Figure 6
86
Pump Seal Replacement - 5 HP Pump
NOTE: To view a video of this
procedure go to You Tube and do
a search for:
purcleantech
There is a sreies of videos,
click on the video titled:
D Series Shaft Seal Replacement