Flowserve Pump 12-MFV-24

Remove rotor and reset seal if necessary for pumps with mechanical seals.

Is the desired ring gap achievable with current shim pack?

Restore or replace wearing surfaces if necessary.

Loosen the 4 screws (or nuts) between the bearing frame and the stuffing box head.

Break the shim joint by tightening the two adjusting bolts and remove the shims.

Adjust shim pack thickness to achieve desired wearing gap.

Select shim stock colour code for adjustment.

6.1.9 Maintenance of mechanical seal

Read all seal instructions before installing the seal

Ensure no scratches or marring on the lapped seal faces

Note any issues with rotary to stationary seal faces

Check concentricity between the bore of stuffing box and shaft sleeve

Are sleeve diameter and stuffing box bore dimensions correct?

5.2.4.2 Recommended grease fill quantities

Verify grease fill quantities for Frame 8H

Connect grease gun to the nipple

Press grease into the bearing housing until it appears in the gap between the housing and shaft

Measure the operating temperature of the bearing

Is the temperature rise above ambient within 55 °C (131 °F)?

Is the combined maximum temperature within 95 °C (204 °F)?

Is there a continuously rising temperature or an abrupt temperature rise?

Verify heating requirements for shaft sleeve removal

Was the sleeve removed successfully after heating?

Was the sleeve cracked and removed mechanically?

Clean the shaft and shaft sleeve thoroughly

Remove oil or grease from mating surfaces with a non-toxic solvent

Did the solvent dry completely?

Apply Loctite type RC/680 or equivalent to the sleeve inside diameter and shaft O.D.

5.8.3 Pumps fitted with mechanical seal

Ensure no adjustment is made to the mechanical seal

Is there any initial leakage from the seal?

Was the pump mechanical seal run in using clean liquid before pumping dirty liquids?

Start external flush or quench before running the pump

Allow external flush or quench to flow after the pump has stopped

Confirm the mechanical seal was not run dry at any time

Is the leakage level of the mechanical seal acceptable?