Finish Thompson Centrifugal Pump DB-4

Remove components from the drive

Be cautious of magnetic attraction when using tools

Remove the drive magnet from the motor shaft by gently prying up from the bottom of the drive

Follow instructions from Section I – Assembly, Pumps without Motors, Steps 4-6

Wear protective clothing and eye protection

Follow local safety standards for locking out the motor from the power supply

Ensure the pump is thoroughly flushed of any hazardous materials

Allow the pump to reach ambient temperatures before maintenance

Stop the pump and lock out the motor starter

Close all valves connected to the pump

Drain and decontaminate the pump

Motor Adapter and Clamp Ring Installation

Place motor adapter with large flange on the bench and align smaller flange holes horizontally.

Reinstall and lubricate o-ring in motor adapter groove if removed.

Install clamp ring ensuring no bolt holes are at 12:00 or 6:00 position.

Install flat washers, lock washers, and M8 bolts.

Tighten bolts evenly using a star pattern to 60 in-lbs (6.8 N-m).

Barrier and Impeller Installation

Install barrier into motor adapter/clamp ring assembly.

Completely close the suction and discharge valves

Connect flushing fluid supply to flush inlet valve

Connect flushing fluid drain to flush drain valve

Open flushing inlet and outlet valves

Flush system until the pump is clean