Pump Reassembly/Seal Replacement; Mechanical Seal - Pentair IntelliFloXF Installation And User Manual

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Pump Reassembly/Seal Replacement

1. Install the spring end of the mechanical seal onto the impeller shaft. Be sure black/carbon
face is facing outward.
2. Remount the seal plate to the motor using the four (4) lock washers and four (4) nuts.
3. With the white ceramic face facing outward, press the seal into the seal plate with your
thumbs and wipe off the ceramic with a clean cloth. Do not lubricate seal faces.
4. Hand tighten impeller onto the motor shaft.
5. Screw in the impeller reverse lock screw (counter-clockwise to tighten).
6. Install the rear plastic cover on the back of the motor.
7. Remount the diffuser onto the seal plate. Make sure the plastic pins and holding screw
inserts are aligned (see "TOP" indicator).
8. Assemble the motor subassembly to the housing. Do not tighten the nuts and washers
until all four (4) motor bolts are in place. Using a torque wrench, install and tighten the
four nuts to a torque value of 100 in-lbs (maximum). Do not overtighten the nuts.
9. Reinstall the drive onto the top of the motor.
9. Fill the pump with water.
10. Reinstall the pump lid and locking ring; see Maintenance on page 5.
11. Reprime the system.
The Mechanical Seal
The mechanical seal consists primarily of two parts, a rotating member and a ceramic seal.
The pump requires little or no service other than reasonable care. A mechanical seal may
occasionally become damaged and must be replaced.
Spring Half-
Carbon face is
pointing outward
IntelliFloXF ™ and IntelliProXF
DO NOT run the pump dry. If the pump is run dry, the mechanical seal will be damaged
and the pump will start leaking. If this occurs, the damaged seal must be replaced. ALWAYS
maintain proper water level in your pool (half way up skimmer opening). If the water level falls
below the skimmer opening, the pump will draw air through the skimmer, losing the prime and
causing the pump to run dry, resulting in a damaged seal.
™ Variable Speed Pump Installation and User's Guide
Ceramic & Rubber Half-
White ceramic face is
pointing outward