Flowserve Pump MK3 HSI 3×1.5-8

Is the bearing housing operating temperature between 71-80°C (160-175°F)?

Is the external housing temperature below 94°C (200°F)?

Is the bearing temperature below 105°C (220°F)?

Stop the pump and lock the motor.

Remove the pipe plug from the inboard bearing location.

Store the pump in a clean, dry location away from vibration.

Leave flange covers in place to keep dirt and other foreign material out of pump casing.

Turn the pump shaft at regular intervals to prevent brinelling of the bearings and the seal faces, if fitted, from sticking.

Is the pump stored for more than 6 months?

Ensure protection of the pump after unpacking.

Has oil been added to the bearing housing?

Are inhibitor oils and greases used if units are idle for extended periods after addition of lubricants?

Rotate the pump shaft approximately 10 revolutions every three months.

Record the current bearing housing operating temperature

Is the bearing housing operating temperature within the acceptable range?

Is the external housing temperature below 94°C (200°F)?

Stop the pump and lock the motor

Remove the pipe plug from both bearing locations

Ensure visible leakage and concentric alignment of the gland follower

Is there leakage from the packing gland when starting the pump?

Is the packing too loose causing air to suck in?

Allow leakage to flow freely after the pump is primed

Gradually and evenly tighten packing gland nuts until leakage is reduced to a trickle

Is the leakage reduced to a trickle without shutting off completely?

Enter the pressure introduced into tap 5 for packing lubrication (kPa)

Record the flow rate of drops per minute for clean fluid

Ensure all parts are thoroughly cleaned and inspected

Use new bearings, O-rings, gaskets, and lip seals

Replace any parts showing wear or corrosion with new genuine Flowserve parts

Check shaft runout (should be 0.025 mm or less)

Is radial deflection within acceptable limits (0.05 mm or less)?

Measure axial shaft movement (endplay) on Durco pump (should be 0.03 mm or less)

Check seal chamber face squareness run-out (should be less than 0.08 mm)

Check seal chamber register concentricity (should be less than 0.13 mm)