ChampionX Level Control 1001

O-ring and Backup Ring Installation

Install the large O-ring over the threads of the bearing block using new O-rings.

Install the new Teflon backup rings in each bearing block using a 5/16 inch diameter rod.

Install the new O-rings in each bearing block using the same rod.

Did you use light oil on the O-rings to aid installation?

Bearing Block and Shaft Assembly

Replace the outboard bearing block on the side of the body away from the case mounting bolt holes.

Insert the shaft into the body and firmly seat it in the outboard bearing.

Replace the remaining bearing block on the body and tighten.

Isolate the controller from the process

Level Controller Preventative Maintenance

Check O-rings and bearings on the main shaft

Inspect the body of the controller for debris buildup

Isolate the controller from the system

Release all pressure from the controller body

Shut off and vent the supply and output (signal air) lines to the controller

Disconnect all power to the controller if repairing an electric pilot

Remove the supply and output lines from the rear of the controller

Remove the pilot for 1001 controller

Ensure these instructions do not apply to the pilot

Refer to Paragraph 2.4 if pilot removal or replacement is needed

Relax all tension on the balance spring

Remove the balance spring and upper spring retainer

Remove the lock nut from the flapper bar

Slide the flapper bar off the pivot pin

Ensure neither pivot pin is removed from the case

WARNING! Isolate the controller and release all pressure before repairs.

Isolate the controller from the process by shutting off the output and supply lines.

If the pilot is electric, turn off and lock out all electrical power to the controller.

Release the process pressure from the controller body.

Check for leaks and replace O-rings if necessary.

Inspect the body of the controller for debris buildup if used in high-paraffin service or interface control with a horizontal displacer.

Determine the frequency of future inspections based on the initial three-month debris buildup.