Motor And Drive Care; Pump Disassembly - Pentair INTELLIFLOXF Installation And User Manual

Always disconnect power to the pump at the circuit breaker and disconnect the communication cable before servicing the pump. Failure
to do so could result in death or serious injury to service people, users or others due to electric shock. Read all servicing instructions
before working on the pump.
DO NOT open the strainer pot if pump fails to prime or if pump has been operating without water in the strainer pot. Pumps operated in
these circumstances may experience a build up of vapor pressure and may contain scalding hot water. Opening the pump may cause
serious personal injury. In order to avoid the possibility of personal injury, be sure the suction and discharge valves are open and strainer pot temperature is
cool to touch, then open with extreme caution.
Be sure not to scratch or mar the polished shaft seal faces; seal will leak if faces are damaged. The polished and lapped faces of the seal
could be damaged if not handled with care.

Motor and Drive Care

Protect from heat
1. Shade the motor from the sun.
2. Any enclosure must be well ventilated to prevent
overheating.
3. Provide ample cross ventilation.
4. Provide a minimum clearance of 3 in. (7.6 cm)
behind the motor fan for proper circulation.
Protect against dirt
1. Protect from any foreign matter.
2. Do not store (or spill) chemicals on or near the motor.
3. Avoid sweeping or stirring up dust near the motor
while it is operating.
4. If a motor has been damaged by dirt it may void the
motor warranty.
Protect against moisture
1. Protect from continuous splashing or continuous
sprayed water.
2. Protect from extreme weather such as flooding.
3. If motor internals have become wet - let it dry before
operating. Do not allow the pump to operate if it has
been flooded.
4. If a motor has been damaged by water it may void
the motor warranty.
5. Close the keypad cover after every use.

Pump Disassembly

TOOLS REQUIRED:
• 3/8-inch socket wrench
• 9/16-inch open-end wrench
• 9/64-inch hex key wrench
• 1/4-inch hex key wrench
• Phillips-head and flat-head screwdriver
• Torque wrench
TO DISASSEMBLE THE PUMP:
Press Start/Stop to stop the pump and disconnect
1.
all power to the pump at the circuit breaker.
Disconnect any digital inputs or communication
2.
cables from the pump.
Close all valves in suction and discharge pipes and
3.
relieve all pressure from the system.
Remove both Drain Plugs from the bottom of the
4.
Strainer Pot.
Pump Disassembly (cont.)
Remove the four Phillips-head Drive Cover Screws
5.
from the outer corners of the keypad.
Disconnect the Drive Cover from the Drive and set it
6.
aside.
Remove the three Phillips-head Drive-to-Motor
7.
Screws, located inside the drive.
Lift the drive from the motor and set it aside.
8.
Using a 9/16-inch open end wrench remove the six
9.
nuts and washers securing the Strainer Pot to the
motor assembly.
Gently pull the two pump halves apart.
10.
Using a 9/64-inch hex key wrench, remove the three
11.
Diffuser Screws securing the diffuser to the Seal
Plate and remove the Diffuser.
Hold the impeller in place by hand. Using a 3/8-
12.
inch socket wrench, remove the impeller screw and
washer.
Note: The screw is a left-handed thread and
loosens in a clockwise direction.
Note: If the impeller screw has a plastic head a
3/4-inch socket is required. This screw will also
include an O-ring instead of a washer.
gloves are recommended when holding the impeller during disassembly
and reassembly.
Using a 1/4-inch hex key wrench, hold the motor
13.
shaft in place at the back of the motor. Turn the
impeller counter-clockwise and remove it from the
shaft.
Using a 9/16-inch wrench, remove the four motor
14.
nuts and washers securing the seal plate to the
motor.
If replacing the shaft seal, continue to Shaft Seal
15.
Replacement on the next page.
Otherwise, continue to Pump Reassembly when
necessary.
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®
INTELLIFLO and INTELLIPRO
The impeller may have sharp edges that could
potentially cut or scratch the user's hands. Safety
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Variable Speed Pump Installation and User' s Guide
21