Bell & Gossett In-Line Mounted Pump 603

Check for the following conditions

Ensure the equipment is powered off and locked out

Remove the casing to access the impeller

Carefully remove the worn impeller

Install the new impeller ensuring proper alignment

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

WARNING: Always disconnect and lock out power to the driver before you perform any installation or maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical injury.

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.

Support the motor and then remove the four screws that hold the motor to the bearing assembly.

On pumps with spring type couplers, remove the motor side coupler half from the motor shaft.

Pull the motor off of the bearing assembly.

Replace any part that does not meet the required criteria

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

Ensure machined surfaces are protected during cleaning to prevent equipment damage

Remove the eight capscrews that hold the bearing assembly or adapter ring to the volute.

Insert a long punch between the impeller vanes or grasp the impeller with a strap wrench to prevent the impeller from turning.

Remove the impeller nut, lockwasher, impeller, and adapter ring.

Seal Parts and Coverplate Removal

Select the type of bearing assembly material

Position the coupler half on the pump shaft

Select the pump shaft type and coupler size

Tighten the setscrew over the dimple if applicable

Tighten the other setscrew if there is one

Slide the coupler half on the shaft if keyed and using size 3J coupler

Slide the coupler half onto the shaft with 0.25 in. extension if using size 4J coupler

Slide the coupler half flush with the flange face if using size 5J coupler

Tighten the setscrews if applicable

Position the coupler half on the motor shaft