STA-RITE INTELLIPRO 2 VST Installation And User Manual Download Page 26

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INTELLIPRO

2 VST Variable Speed Pump Installation and User’s Guide

Drive Assembly Removal and Installation

To remove the drive and control panel from the motor
assembly:

1. Be sure all electrical breakers and switches are turned off

before removing the control panel.

2. Disconnect the RS-485 communication cable from the

pump.

3. Remove the four (4) Phillips head screws from the outer

corners of the keypad.

4. Unplug the keypad from the drive and set it to the side in

a safe place.

5. Remove the three (3) Phillips head screws, located inside

the drive, that anchor the drive to the motor.

6. Lift up the drive assembly and remove it from the motor

adapter located on top of the motor assembly.

Note:

Be careful not to remove the gasket between the

drive and motor, it is critical in keeping moisture out of the
drive and motor. Replace the gasket if damaged. Do not
reassemble with a damaged or missing gasket.

To avoid electrical hazard, do not remove the four tamper
proof screws from the motor assembly.

To avoid dangerous or fatal electrical shock hazard, switch
OFF power to motor before working on pump or motor.

Pump Reassembly/Installing New Seal

1. Clean the ceramic seat of dirt, grease, dust, etc.

Wet the outer edge of the rubber cup on the ceramic
seat with water. Press the ceramic seal into the seal
plate ﬁrmly and squarely with ﬁnger pressure. See
seal image below.

2. Place ceramic seat face up on bench and reclean

the cavity if seat does not lock properly.

3. If the seat still does not lock properly, place a

cardboard washer over the polished face and use
a piece of 3/4” standard pipe for pressing purposes.

4. Remount seal plate on the motor. Tighten the bolts

to 60-80 inch-lbs. (69-92kg/cm) torque.

5. Apply a small amount of liquid detergent to the

inside diameter of rotating half of seal.

6. Slide the rotating seal member, polished face last,

over impeller sleeve until the rubber drive ring
contacts the shoulder.

Note:

Be sure not to nick or scratch the polished

seal face. The seal will leak if the face is damaged.

7. Screw the impeller onto the shaft (clockwise); this

will automatically lock the seal in the seal plate.

Note:

On models with an impeller screw: Install the

impeller gasket and lock screw (left-hand thread -
turn counter-clockwise). Torque lock screw to 50-55
inch-lbs. (57.6-63 kg/cm).

8. Mount the diffuser on the seal plate. Tighten screws

to 10-14 inch-lbs. (11.2-16.1 kg/cm) torque.

9. Assemble the motor and seal plate to the volute.

Be sure the clamp is properly seated.

Note:

Clamp knob can be located in any position

around volute; if it is moved after assembly, tighten
knob while tapping around clamp to assist sealing.
Do not move clamp while pump is full of water.

10. Reconnect the RS-485 communication cable to the pump.

11. Fill the pump with water.

12. Reinstall the pump lid and plastic clamp. See “Pump

Strainer Basket” on page 20 for details.

13. Turn on the pump circuit breakers at the main panel.

14. Prime the pump. See “Priming the Pump,” on page 4 for

more information.

LOCKING RING/LID

LID O-RING

STRAINER BASKET

DRAIN PLUG (2X)

DRAIN PLUG O-RING (2X)