Gorman-Rupp Pump 64B2-B

Shaft and Bearing Removal and Disassembly

Is there evidence of wear or damage on the shaft and bearings?

Place a drip pan under the bearing housing before removing the shaft and bearings.

Is the pump equipped with oil-lubricated bearings?

Remove the oil cup and drain the bearing cavity before removing the shaft and bearings.

Disengage the attaching hardware and remove the bearing cap, oil seal, and gasket.

Use an arbor (or hydraulic) press to remove the oil seal from the bearing cap.

Place a block of wood against the impeller end of the shaft, and tap the shaft and assembled bearings from the bearing housing.

Use a screwdriver or other suitable tool to remove the oil seal from the bearing housing.

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.

Ensure the dowel pins are 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

Remove the spring centering washer

Lubricate the shaft and work oil up under the rubber bellows

Slide the rotating portion of the seal off the shaft

Use a stiff wire with a hooked end to remove the stationary seat and O-ring

Ensure no damage to the seal faces

Proceed to Seal Assembly if no further disassembly is required

Seal Reassembly and Installation

Lubrication — Oil Lubricated Bearings

Check the oil level at the oil cup

Is the oil level at the top of the cup?

Remove the air vent if lubrication is required

Add SAE No. 30 non-detergent oil through the hole if needed

Describe any issues observed during the oil level check

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