Gorman-Rupp Pump 612M60-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

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

Seal Reassembly and Installation

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

Inspect the impeller for cracks or wear

Does the impeller have wear rings?

Is the impeller cracked or badly worn?

Consult the factory for the new impeller part number if replacement is needed

Slide the impeller onto the shaft

Secure the impeller with the tab washer and impeller nut

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 using a suitable tool.

Clean and inspect the bearings in place.

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