Flowserve Pump 6-MFV-12

6.7.3 Bearing installation and removal

Ensure proper fit is maintained during bearing installation

Was a pulling device used to remove bearings from the shaft?

Support the bearing cone with a split ring and press out the shaft using an arbor press, if applicable

Select the method used for mounting a bearing on the pump shaft

Heat the bearing to a uniform temperature

Quickly mount the heated bearing on the shaft

Apply force using an arbor press if the alternate method is used

Ensure the cone is never cocked when forcing a bearing onto a shaft

Normal Vibration Levels, Alarm and Trip

Measure the vibration velocity of the motor (unfiltered, r.m.s.)

Is the vibration velocity within the normal range for the motor's power rating?

Calculate and record the alarm value (N × 1.25) for the motor's vibration velocity.

Calculate and record the trip value (N × 2.0) for the motor's vibration velocity.

Pump and Motor Bearings Temperature

Record the bearing temperature (t).

Record the ambient temperature (ta).

Estimate and record the likely maximum ambient temperature (tb).

Is there visible leakage from the gland?

Ensure gland nuts are finger-tight only.

Is leakage taking place soon after the stuffing box is pressurized?

Is the gland adjusted evenly for visible leakage and concentric alignment?

Is there any sign of overheating?

If overheating occurs, was the pump stopped and allowed to cool?

6.1.2 Periodic inspection (semi-annual)

Clean and oil the gland studs and nuts

Replace the packing if necessary

Enter the pump running hours from records

Should the bearings be inspected and re-lubricated based on hourly usage?

Is the time since last cleaning and lubrication change less than one year?

Does the bearing lubricant require changing based on hourly usage?

Determine the mode of lubrication of the pump set

Check the bearing frame cavities for grease and add grease as necessary

Remove the grease fittings or pipe plug closest to the cover after start-up to allow excess grease to flow out

Monitor the bearing temperatures until they return to normal

Investigate any marked increase in bearing temperature after normal operation