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8

3. Pry loose the ceramic seal in impeller, apply screwdriver

between seat and cavity in impeller (Figure 6). Clean
cavity from which seat was removed.

4. Lubricate the rubber ring in the impeller with a soap 

solution. Press seat into impeller cavity (Figure 7). If a
tool or pipe is necessary to press ceramic seat correctly,
use a cardboard disc or washer to protect the highly 
polished ceramic surface of the new seal.

Pump Reassembly:

1. Loosen shaft extension (Key No. 2), so it may be moved

along the shaft with ease. Replace adapter on motor and
tighten capscrews (Key No. 5).

2. Make certain seal faces are clean. Hold the motor shaft

extension stationary and tighten impeller on to shaft.

NOTICE:

3-Phase models use an impeller screw. For

these models, install the impeller washer and lock screw
(left-hand thread—turn counterclockwise) before 
proceeding to Step 3.

3. Leaving volute gasket off, place volute on adapter and

tighten nuts (Key No. 11A).

4. Push shaft extension and impeller toward volute until

impeller touches volute. Tighten set screws (Key No. 3)
in place. Remove volute and install gasket (Key No. 8).
Place volute on adapter and tighten nuts (Key No. 11A).
By this procedure, the proper clearance between 
impeller face and volute has been established.

Figure 6

Figure 7

Summary of Contents for Sta-Rite CF6 Series

Page 1: ...5 553 5000 Sta Rite and Pentair Water Pool and Spa are registered trademarks of Pentair Water Pool and Spa Inc and or its affiliated companies in the United States and or other countries Unless noted names and brands of others that may be used in this document are not used to indi cate an affiliation or endorsement between the proprietors of these names and brands and Pentair Water Pool and Spa In...

Page 2: ...e injury or property damage Read and follow instructions in owner s manual when installing and operating equipment Have a trained pool professional perform all pressure tests 1 Do not connect system to a high pressure or city water system 2 Use equipment only in a pool or spa installation 3 Trapped air in system can cause explosion BE SURE all air is out of system before operating or testing equip...

Page 3: ...s near the pump To avoid a strain left by a gap at the last connection start all piping at the pump and run pipe away from the pump Never use a suction pipe smaller than pump suction connection To avoid airlocking slope suction pipe slightly upward toward the pump NOTICE To prevent flooding when removing pump for service all flooded suction systems must have gate valves in suction and discharge pi...

Page 4: ...latest ASME ANSI Specification for Suction Fittings For Use in Swimming Pools Spas Hot Tubs and Whirlpool Bathtub Applications ELECTRICAL Hazardous voltage Can shock burn or cause death Ground pump before connecting to power supply Ground motor before connecting to electrical power supply Failure to ground pump motor can cause serious or fatal electrical shock hazard Do not ground to a gas supply ...

Page 5: ...and test procedures for GFCI see manufacturer s instruction In case of power outage check GFCI for tripping which will prevent normal pump operation Reset if necessary NOTICE If you do not use conduit when wiring motor be sure to seal wire opening on end of motor to prevent dirt bugs etc from entering NOTICE Three phase models require magnetic motor starters and extenal overload protection If in d...

Page 6: ...ction piping If pump does not prime make sure that all valves are open suction pipe end is under water and that there are no leaks in suction pipe See Troubleshooting Guide Page 9 STORAGE WINTERIZING Allowing pump to freeze will damage pump and void warranty Do not use anti freeze solutions except propylene glycol in your pool spa system Propylene glycol is non toxic and will not damage plastic sy...

Page 7: ...eded beyond reasonable care and periodic cleaning If shaft seal is worn or damaged repair as follows Pump Disassembly Disconnect power to pump motor Be sure gate valves on suction and return piping are closed before starting work Release all pressure by opening all vents before starting work 1 Drain pump by removing drain plugs on bottom of pump body and trap body 2 Be sure there is no pressure in...

Page 8: ...on motor and tighten capscrews Key No 5 2 Make certain seal faces are clean Hold the motor shaft extension stationary and tighten impeller on to shaft NOTICE 3 Phase models use an impeller screw For these models install the impeller washer and lock screw left hand thread turn counterclockwise before proceeding to Step 3 3 Leaving volute gasket off place volute on adapter and tighten nuts Key No 11...

Page 9: ...ORN IMPELLER 1 Make sure suction trap is not clogged if it is clean trap and strainer 2 Make sure impeller is not clogged follow instructions under Removing Old Seal Page 7 check impeller for clogging follow instructions under Installing New Seal Page 7 for reassembly 3 Impeller may be worn If so order replacement parts from Repair Parts List Page 10 4 Pump may be trying to push too high a column ...

Page 10: ... C20 72 C20 72 C20 72 C20 72 9 Volute Trap Body 1 C1 201DB C1 201DB C1 201DB C1 201DB 10 Pipe Plug 1 4 NPT 2 U78 57DT U78 57DT U78 57DT U78 57DT 11 Stud 3 8 16 x 1 7 16 4 U30 36SS U30 36SS 11 Stud 3 8 x 1 1 4 4 U30 22SS U30 22SS 11A Nut 3 8 16 4 U36 38SS U36 38SS U36 38SS U36 38SS 12 Trap Cover 1 C3 78D C3 78D C3 78D C3 78D 13 Cord Ring 1 U9 46 U9 46 U9 46 U9 46 14 Trap Handle 2 C154 25 C154 25 C1...

Page 11: ...11 ...

Page 12: ...y Requests for warranty service must be made through the installing dealer This warranty shall not apply to any product that has been subject to negligence misapplication improper installation or maintenance or other circumstances which are not in Pentair Water Pool and Spa s direct control Failure to have product installed by a professional in compliance with local codes will void any and all man...

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