Gorman-Rupp Pump 63D31-B

Lubrication — Oil Lubricated Bearings

Refill the bearing housing with clean oil

Is the pump operated continuously or in an environment with rapid temperature change?

If yes, describe the frequency of oil changes needed

Inspect the impeller for cracks or wear

Does the impeller have wear rings?

Is the impeller cracked or badly worn?

Replace the impeller if it is cracked, badly worn, or has wear rings that require replacement

Slide the impeller onto the shaft

Secure the impeller with the tab washer and impeller nut

Pump and Seal Disassembly and Reassembly

Familiarize yourself with the manual

Shut off the incoming power to the motor and lock it out

Allow the pump to completely cool if overheated

Check the temperature before opening any covers, plates, or plugs

Close the suction and discharge valves

Vent the pump slowly and cautiously

Ensure safety practices are followed

Refer to special instructions in Body Cover Replacement if replacement is needed.

Install a new body cover gasket.

Use a soft-faced mallet to tap the body cover into place on the dowel pins.

Secure the body cover with the attaching hardware.

Are the dowel pins fully seated into the body cover?

Return the pump to the factory if body cover replacement is required.

Install a new body cover gasket.

Remove the seal retaining ring with caution

Is further disassembly required?

Seal Reassembly and Installation

Clean the seal cavity and shaft with a cloth soaked in fresh cleaning solvent

Is the seal being reused in an emergency?