KSB SE & Co. KGaA Submersible Motor Pump KRT F 80-317

Ensure maintenance interval is appropriate for conditions

Contact KSB Service for consultation or queries if needed

Measure resistance at the core ends of the control cable using an ohmmeter

Check if specified tolerances are exceeded

If tolerances are exceeded, disconnect connection cable at pump set and repeat check inside motor

If tolerances are exceeded inside motor, open and overhaul motor part

Use back-up sensors if original sensors are defective

In demanding conditions (e.g. high mechanical and hydraulic loads) reduce the maintenance interval accordingly. For a consultation or any queries please contact KSB Service.

Ensure the pump set is disconnected in the control cabinet

Use an insulation resistance measuring device with a maximum measuring voltage of 500 V

Measure the winding to chassis ground

Connect all winding ends together

Record the insulation resistance value

Is the insulation resistance of the core ends to chassis ground 1 MΩ or higher?

Measure the winding temperature sensor to chassis ground

Ensure the pump set is in a horizontal position

Take measures to protect persons and the environment when draining the fluid

Observe all legal regulations on the disposal of fluids posing a health hazard

Open the screw plug of the cooling liquid chamber very carefully to avoid injuries

Place a suitable container under screw plug 903.33

Unscrew both screw plugs 903.34/903.35 with joint rings 411.34/411.35 at the coolant filler openings

Undo screw plug 903.33 with joint ring 411.33 and drain off the coolant

Wear safety clothing and a protective mask if required

Observe all legal regulations on the disposal of fluids posing a health hazard

Close the shut-off element on the suction side

Switch off the drive and ensure it cannot be re-started unintentionally

Close the shut-off element on the discharge side

Open the drain plug (auxiliary connection 6B)

Wear safety clothing and a protective mask if required.

Observe all legal regulations on the disposal of fluids posing a health hazard.

Has the pump been used for handling noxious, explosive, hot or other hazardous fluids?

Flush the pump if it has been used for handling hazardous fluids.

Flush and clean the pump before transporting it to the workshop.

Complete and enclose a certificate of decontamination when returning the pump set.