Goulds Pumps Pump VIT 7RA

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 (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

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

Clean dirt, oil, and grease from driver and discharge head

Clean driver ventilation passage to prevent overheating

Check for some leakage through stuffing box while pump is in operation

Do not tighten gland nuts unless necessary

Remove set screws or grind off tack weld

Cut two 'V' shaped grooves on the bowl wear ring

Knock the end of one half of the ring in and pry the ring out

Machine the wear ring off for special materials

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.

Set up the impeller in a lathe.

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