Bell & Gossett In-Line Mounted Pump 612

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, did you install the coverplate on the housing?

Select the type of housing for lubrication instructions

Lubricate the OD of the rear bearing with grease.

Position the coupler half on the pump shaft

Select the pump shaft type and coupler size

If dimpled shaft, ensure setscrew is positioned over the dimple and tightened

If keyed shaft with size 3J coupler, slide the coupler half on the shaft without tightening the setscrew

If keyed shaft with size 4J coupler, ensure shaft end extends 0.25 in. past the coupler half flange face and tighten setscrews

If keyed shaft with size 5J coupler, ensure shaft end is flush with the coupler half flange face and tighten setscrews

Position the coupler half on the motor shaft

If dimpled shaft, ensure setscrew is positioned over the dimple and tightened

Replace any part that does not meet the required criteria

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

Protection of Machined Surfaces

Protect machined surfaces while cleaning

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

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.

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 motor side coupler setscrew is seated in the shaft dimple

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

Check for proper motor rotation (clockwise when viewed from the back of the motor)