KSB SE & Co. KGaA Submersible Motor Pump KRT D 100-315

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 (maximum permissible voltage 1000 V)

Measure the insulation resistance of the motor winding

Measure the winding to chassis ground by connecting all winding ends together

Measure the winding temperature sensor to chassis ground by connecting all core ends of the winding temperature sensors together and connecting all winding ends to chassis ground

Check insulation resistance values

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

Ensure the pump set is positioned on a level surface and secured against tipping over.

Verify that the pump set is de-energized and secured against unintentional start-up.

Remove screw plug 903.46 and joint ring 411.46.

Connect the pump set to the power supply.

Secure the pump set against tilting.

Fill in 2.1 oz [60 g] of grease via lubricating nipple 636.02.

Inspect the power cables for visible damage

Replace any damaged components with original spare parts

Measure the resistance between the ground conductor and chassis ground

Is the electrical resistance lower than 1 Ω?

Replace any damaged components with original spare parts

Defective ground conductor can cause electric shock. Never switch on a pump set with a defective ground conductor.

NOTE: In demanding conditions, reduce the maintenance interval accordingly. For a consultation or any queries please contact KSB Service.

The pump set has been lifted out of the pump sump and cleaned. (Applies to installation type K only.)

Inspect the lifting chain/rope and fasteners (shackles) for any visible damage.

Replace any damaged components with original spare parts.

Assess the lifting chain / lifting rope / shackle in accordance with the locally applicable regulations for lifting tackle.

Observe the operating manual of the lifting accessories.

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.