Goulds Pumps Pump VIT

Remove capscrews securing top bowl to intermediate bowl

Slide top bowl off the pumpshaft

Remove capscrews and split thrust ring from pump shaft

Slide impeller off the pumpshaft and remove the key

If impeller is seized, strike with a fiber mallet to drive it off the pumpshaft

Repeat procedures until the bowl assembly is completely disassembled

Ensure mechanical seal is not secured to the shaft prior to impeller adjustment.

Verify that the shaft can move up or down within the seal assembly.

Turn the adjusting plate (613) to adjust the impeller.

Refer to the Outline Drawing for the specific unit and note the correct adjustment.

Check if the pump has a thrust pot.

Ensure thrust is installed before adjusting the impeller position.

Remove the driveshaft between the gear and the prime mover

Remove the electrical connections at the conduit box and tag the electrical leads

Uncouple driver (or gear box) from pump shaft and mounting flanges

Warning: Never try to lift entire pump assembly by the lifting lugs or eyebolts furnished for the driver only

Disconnect discharge head from the discharge piping

Remove all hold down bolts and external piping

Remove coupling, packing box and proceed with disassembly down to the bowls

Clean all pump parts thoroughly with a suitable cleaner

Check bearing retainers for deformation and wear

Check shafts for straightness and excessive wear on bearing surfaces

Enter the average total run-out of the shafts (in inches TIR per foot)

Is the total run-out within the acceptable range?

Visually check impellers and bowls for cracks and pitting

Check all bowl bearings for excessive wear and corrosion

Cut two 'V' shaped grooves on the impeller wear ring approximately 180 degrees apart using a diamond point chisel

Knock the end of one half of the ring out with a chisel or drift

Machine the wear ring off using extreme care not to machine or damage the ring seat