10
‘C’ and ‘CC’ SERIES COMMERCIAL
POOL PUMP DISASSEMBLY/
ASSEMBLY
See Exploded View, Page 14.
Shaft Seal Replacement
NOTICE:
The highly polished and lapped faces of the seal are easily dam-
aged.
Follow instructions and handle the seal with care.
Be sure unit is grounded and power disconnected before
attempting any work on pump or motor.
Removal of Old Seal
Refer to Figure 2 for Mechanical Seal parts identification. Refer to exploded
view, Page 14, for Key No. references.
1. Disconnect all power to pump.
2. Close suction and discharge valves to isolate pump from system.
3. Drain pump and strainer; be sure to vent pump before opening strainer
cover.
4. Remove motor hold down bolts and the nuts (Key No. 21) holding
adapter/seal plate (Key No. 5) to volute (Key No. 18). Slide motor,
adapter/seal plate and impeller (Key Nos. 1, 5 and 12) backward to clear
volute.
5. Remove impeller screw, washer and gaskets (Key Nos. 13-16) from end of
shaft and slide impeller off of shaft.
6. Unbolt adapter/seal plate from motor.
7. Use two screwdrivers (Figure 3) or bearing puller to carefully separate
motor from adapter/seal plate, bringing rotating half of seal off with
adapter/seal plate. Shaft sleeve (Key No. 10) may come off with seal.
8. Use hammer, if necessary, to drive shaft sleeve out of seal. Clean up shaft
sleeve with emery paper if necessary.
9. Place adapter/seal plate face down on bench and tap old stationary half of
seal out of adapter/seal plate with a screwdriver and hammer (Figure 4).
10. Use a wire brush to thoroughly clean adapter/seal plate cavity. Be sure all
dust and grime are out of seal cavity before installing new seal.
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 (see Figure 2).
2. Clean polished surface of ceramic seat with clean cloth.
3. Sparingly 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 card-
board washer over polished face of seal and
carefully
press into place
using a piece of 1” standard pipe as a press (Figure 5).
Hazardous
voltage
Figure 3
If Gear Puller is used,
place jackscrew here.
Rotating Seat will come off
with adapter/sealplate.
1420 1294 C/CC
Figure 4
1421 1294 C/CC
Figure 5
1" Standard Pipe
Stationary Seat
Cardboard
Washer
(Supplied with seal)
1422 1294 C/CC
Stationary
Seat
Rotating
Seat
Spring
1419 1294
Figure 2
