Shaft Seal Replacement; Pump Reassembly - Pentair INTELLIFLOXF Installation And User Manual

22

Shaft Seal Replacement

The Shaft Seal consists of two halves, a rotating spring seal
and a fixed ceramic seal. The shaft seal may occasionally
become damaged and require replacement.
Scratching, marring or otherwise damaging the polished
shaft seal faces will cause the seal to leak. Always
handle the shaft seal faces with care and clean them thoroughly before
reassembling the pump.
Ensure you have completed all pump disassembly
1.
instructions on the previous page.
Remove the old Spring Seal from the impeller shaft with a
2.
pair of pliers.
Note: When removing the spring seal the inner sleeve
of the seal may stick to the shaft. Ensure it is removed
before installing the new spring seal.
Place the seal plate face down on a flat surface and tap
3.
out the old ceramic seal with a flat-blade screwdriver.
Flip the seal plate over and thoroughly clean the seal
4.
cavity.
Lightly lubricate the outside rubber surface of the new
5.
ceramic seal with water.
With the White Ceramic Face upwards, firmly press
6.
the new Ceramic Seal into the seal plate cavity with your
thumbs.
Thoroughly clean the seal face with a clean cloth.
7.
Using a 9/16" wrench, secure the seal plate to the motor
8.
with the four motor bolts. Tighten to 75-80 in-lbs. (86-92
kg/cm).
With the Flat Face towards the impeller, slide the new
9.
spring seal onto the impeller shaft.
Thoroughly clean the seal face with a clean cloth
10.
Hold the motor shaft in place at the rear of the motor and
11.
hand tighten the impeller clockwise onto the motor shaft.
Continue reassembling the pump according to the
12.
instructions given in Pump Reassembly.
Spring Half: Flat
face towards
impeller
Shaft Seal Replacement
XF
®
INTELLIFLO and INTELLIPRO
DRIVE KEYPAD COVER
DRIVE COVER
Ceramic/
DRIVE COVER SCREWS (4X)
Rubber Half:
White ceramic
DRIVE TO MOTOR
face outward SCREWS (3X)
DRIVE
MOTOR
ACORN NUTS (10X)
LOCK WASHER (10X)
WASHER (6X)
FOOT INSERT
XF
®
Variable Speed Pump Installation and User' s Guide

Pump Reassembly

Using a 9/16" wrench, secure the seal plate to
1.
the motor with the four motor nuts. Tighten to
75-80 in-lbs. (86-92 kg/cm).
Hold the motor shaft in place at the rear of the
2.
motor and hand tighten the impeller clockwise
onto the motor shaft.
Continue to hold the motor shaft in place and
3.
reinstall the impeller screw and washer.
Note: The impeller screw is reverse thread
and tightens counter-clockwise.
Note: Some pumps contain an O-ring instead
of a washer. Before reassembling, inspect
the O-ring for damage and replace if needed.
user's hands. Safety gloves are recommended when holding
the impeller during disassembly and reassembly.
Secure the diffuser onto the seal plate with the
4.
three diffuser screws. Ensure the plastic pins
and holding screw inserts are aligned (see
"TOP" indicator).
Note: Ensure that the seal plate and diffuser
O-rings are clean and free of debris.
Using a 9/16-inch open-end wrench, secure
5.
the motor assembly to the strainer pot with the
six seal plate nuts and washers. Tighten to a
maximum of 100 in-lbs (115 kg/cm).
Reinstall the drive onto the motor.
6.
Reinstall both drain plugs and fill the pump with
7.
water.
Prime the system. See page 4 for priming
8.
instructions.
FOOT
DIFFUSER
DIFFUSER SCREWS (3X)
Motor Assembly Breakdown
The impeller may have sharp edges
that could potentially cut or scratch the
HEYCO PLUG FOR
KEYPAD RELOCATION
DRIVE GASKET
MOTOR PADS (3X)
SEAL PLATE
SHAFT SEAL
SEAL PLATE O-RING
IMPELLER
IMPELLER SCREW
AND WASHER
DIFFUSER O-RING