Flowserve Vertical Immersion Sump Pump 1E1.5x1SP-8

6.9.1 Replacing shaft sleeve bearings

Ensure shaft bearings are only removed if they are to be replaced

Refer to Figure 6-6 for allowable bearing tolerances

Are bearing tolerances exceeded?

Replace components if tolerances are exceeded

6.9.1a Intermediate bearings [3020.1]

Remove old intermediate bearings [3020.1] (refer to section 6.7.2)

Clean and deburr bearing holder bore and lubrication port

Apply light coating of grease or oil to bearing holder bore and outside diameter of new bearing

Cover the shaft threads with Teflon tape

Attach the stuffing box [4110] to the upper column [1341.1]

Set the impeller and mark the shaft at box face

Disassemble the pump for seal installation

Install the seal according to instructions

Lubricate the seal rotor properly

Slip the seal [4200] onto the shaft [2100]

Verify bearing temperature is within the specified range

Select the lubrication group based on re-lubrication amounts

Lubricate the external duplex angular contact thrust bearing through the grease fitting [3853.2]

Ensure not to overfill the motor or pump thrust bearings with grease

Close control valve in discharge line

Lock out power supply to driver

Disconnect all electrical connections

Close all valves on auxiliary equipment and piping then disconnect all auxiliary piping

Disconnect discharge piping from pump

Remove coupling guard and coupling halves

Thrust Bearing Initial Lubrication

Select bearing group for lubrication amount

Confirm recommended grease type

Pack new bearings if not lubricated

Ensure not to overfill motor or pump thrust bearings

Verify bearing temperature does not exceed 105°C (220°F)