Flowserve Pump 6-MFC-15

5.8.2 Pumps fitted with packed gland

Ensure the following initial conditions are met

Is there visible leakage from the gland after pressurization?

Stop the pump and allow it to cool if overheating occurs

Upon restarting, is leakage taking place at the packed gland?

Slacken the gland nuts if necessary to achieve leakage when pumping hot liquids

Run the pump for 30 minutes with steady leakage

Tighten the gland nuts by 10 degrees at a time until leakage is reduced to an acceptable level

4.8 Final shaft alignment check

Rotate the shaft several times by hand to ensure there is no binding and all parts are free.

Recheck the coupling alignment to ensure no pipe strain exists.

If pipe strain exists, describe the corrective actions taken.

6.1.2 Periodic inspection (semi-annual)

Check the coupling for correct alignment.

Inspect for worn driving elements.

4.5.4 Alignment criteria for MFC pumps

Verify maximum Total Indicator Reading (TIR) for Woods type coupling

Periodic inspection (semi-annual)

Ensure maximum time between cleaning and lubrication change is one year

Determine if environmental severity dictates shorter frequency

Complete cleaning during a major overhaul

Use a brush and wash out the housing with hot oil or non-toxic solvent

Flush the housing with light mineral oil to prevent rust

Remove solid particles with a brush dipped in hot oil while spinning the bearing

Immerse bearings in hot non-toxic solvent if oxidized grease is present

5.1 Pre-commissioning procedure

Ensure the following pre-commissioning checks are completed

Pump bearings filled with recommended lubricant

All vent connections checked for complete filling of the pump

Direction of rotation of the pump checked (Coupling spacer dismantled)

Pump rotor and shaft seal in correct axial position

Readiness of all auxiliary systems (seal sys., lubrication sys.) for start up

All pipe work connected correctly and absolutely tight

Is the suction valve open and the discharge valve closed or partially open as required?

Has the pump performance decreased appreciably due to excessive wearing ring clearance?

Enter the original nominal design running clearance (in mm)

Is rotor removal and resetting of the seal required after adjusting the wearing ring gap?

Refer to mechanical seal manufacturer's User Instructions and note any specific requirements

Select the method used for checking wearing ring clearance

Ensure bearing frame support bolts are re-tightened after adjustment

Disconnect pump-coupling halves if required