Gorman-Rupp Pump 66B3-B

Check for evidence of rust in the lubricant

Check for moisture condensation in the lubricant

Consult factory or lubricant supplier for recommended oil grade for cold weather

Lubrication — Oil Lubricated Bearings

Check the oil level at the oil cup

Remove the air vent if lubrication is required

Add SAE No. 30 non-detergent oil through the hole if lubrication is required

Pump and Seal Disassembly and Reassembly

Ensure safety measures are in place before servicing

Familiarize yourself with the manual

Has the pump completely cooled if overheated?

Is the temperature safe before opening any covers, plates, or plugs?

Close the suction and discharge valves

Vent the pump slowly and cautiously

Follow safety practices for volatile and/or flammable liquids

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.

Remove the oil cup and drain the bearing cavity if equipped with oil-lubricated bearings.

Disengage the attaching hardware and remove components

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

Tap the shaft and assembled bearings from the bearing housing using a block of wood.

Remove the oil seal from the bearing housing if present.

Clean and inspect the bearings in place.

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.