Flowserve Vertical Immersion Sump Pump 2E3x2SP-10

Verify impeller balance requirement

Check if impeller was trimmed by customer

Determine maximum acceptable unbalance

Identify impeller type for balance method

Perform balance to ISO 1940 Grade 6.3 tolerance criteria

Ensure all tools are accounted for

SECTION: 6.9.5 Seal and packing installation (if equipped)

Applies to pumps equipped with shaft packing.

Ensure the gland nuts [6580.8] are evenly finger tight and then tighten an additional ¼ turn.

Final tightness is set via leakage.

A slight amount of leakage through the gland [4120.1] is necessary for proper lubrication.

Packing glands must never be tightened to the point where leakage from the packing is stopped.

SECTION: 6.1 Maintenance schedule

Gland packing must be adjusted correctly to give visible leakage and concentric alignment of the gland follower to prevent excessive temperature of the packing or follower.;

6.7.2 Pump Disassembly — Thrust Bearing Removal

Use an arbor or hydraulic press to remove the bearings from the adjusting sleeve

Apply even pressure to the inner bearing race only

Note any damage observed during removal

6.9.4 Ball Bearing/Adjusting Sleeve Assembly

Ensure clean environment for bearing mounting

Remove bearings from protective packaging immediately before assembly

SECTION: 6.1 Maintenance schedule

Check for any leaks from gaskets and seals.

The correct functioning of the shaft seal must be checked regularly.

CAUTION — Seals must never be run without lubrication. Abrasive lubrication will greatly reduce seal life:;

Thrust Bearing Lubrication Conditions

Check if bearing temperature is between 80–94°C (175–200°F)

Verify lubrication interval is 1.5 months

Lubricate through the grease fitting [3853.2]

Ensure motor or pump thrust bearings are not overfilled with grease