Goulds Pumps Pump VIT 5C

Ensure mechanical seal is not secured to the shaft

Verify shaft can move up or down within the seal assembly

Turn the adjusting plate (613) to adjust the impeller

Check the correct adjustment on the Outline Drawing for the specific unit

If pump has thrust pot, ensure thrust is installed before adjusting impeller position

Adjust impeller position using the adjust nut on the thrust pot

Remove capscrews securing top bowl to intermediate bowl

Slide discharge bowl and top bowl off the pump shaft

Pull shaft out and strike impeller hub to drive the impeller off the taperlock

Insert a screwdriver into the slot in the taperlock and spread it open

Slide the taperlock and impeller off the pump shaft

Repeat the procedures until the bowl assembly is completely disassembled

Initial Inspection and Adjustment

Is the leakage rate exceeding two drops per second?

Stop the pump if there is no leakage or the stuffing box overheats

Allow packing to cool before restarting the pump

Reinstall the coupling guard before restarting the pump

Tighten the gland nuts one-quarter turn with the pump in operation

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

Clean driver ventilation passage to prevent overheating

Check for leakage through stuffing box while pump is in operation

Ensure gland nuts are not tightened unless necessary

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, and pry the ring off.

Wear Ring Removal on Special Materials

Set up the impeller in a lathe.

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