Bell & Gossett In-Line Mounted Pump 611

Disconnect and lock out electrical power before installing or servicing the unit.

Always disconnect and lock out power to the driver before performing any installation or maintenance tasks.

Turn off and lock out power to the motor.

Disconnect the power leads from the motor leads.

Remove the conduit and power leads from the conduit box.

Remove the spring retainer and seal spring

Pry the compression ring off the seal boot

Insert a standard screwdriver under the seal head and carefully pry the seal head off the shaft

Use a small screwdriver to loosen and remove the seal seat and gasket

Is the seat retainer in good condition?

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

Install the new coupler on the pump shaft

Ensure the coupler setscrew is seated in the shaft dimple

Lift the motor into position and attach the motor side coupler half

Ensure the coupler setscrew is seated in the shaft dimple on the motor side

Support the motor and install the four screws that hold the motor to the bearing assembly

Attach the conduit and power leads to the conduit box

Connect the power leads to the motor leads

Ensure all system and pump components have cooled before handling to prevent physical injury.

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

Check if the system needs to be drained due to lack of installed valves.

Open the drain valve and wait until liquid stops flowing.

Verify if liquid continues to flow from the drain valve indicating faulty isolation valves.

Repair isolation valves if they are not sealing properly.

Leave the drain valve open until reassembly is complete.

Drain the liquid from the piping and flush the pump if necessary.