Bell & Gossett In-Line Mounted Pump 618

Allow all system and pump components to cool before handling to prevent physical injury.

Close the isolation valves on the suction and discharge sides of the pump.

Is the system drained if no valves are installed?

Open the drain valve and wait until liquid stops coming out.

Is liquid still flowing from the drain valve?

Describe the repairs needed if isolation valves are not sealing properly.

Is the groove deeper than 1/16 in. (1.6 mm)?

Is the wear more than 1/32 in. (0.8 mm)?

Decision to replace the impeller

Describe any additional observations

Replacement of Gaskets and O-Rings

Inspect the seats for smoothness and physical defects

Replace any part that does not meet the required criteria

Clean the pump parts in solvent to remove oil, grease, and dirt

Protect machined surfaces while cleaning to prevent equipment damage

WARNING: Use a new gasket when reinstalling the bearing assembly to prevent injury or damage.

Wipe the bearing bores clean and remove any rust or scale deposits with a fine emery cloth.

Insert the new wave spring into the rear bearing bore.

Insert the shaft assembly into the housing and then install and tighten the retaining screws.

For cast iron bearing assemblies, install the coverplate on the housing.

If used, install the adapter ring and gasket on the new bearing assembly.

Select the type of housing for lubrication instructions