ChampionX Level Control 1001A

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

If the pilot is electric, have you turned off and locked out all electrical power to the controller?

Release the process pressure from the controller body.

Level Controller Preventative Maintenance

Check the condition of the following components

If a leak occurs, have you replaced the O-rings?

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

Adjust the level by turning the adjusting knob

Is the displacer arm centered in the vessel nozzle?

Turn the adjusting knob under the Balance Spring CLOCKWISE to lower the level

Turn the adjusting knob under the Balance Spring COUNTER-CLOCKWISE to raise the level

Adjust the proportional band ('dump span')

Loosen the thumb screw on the Sensitivity Fulcrum

Slide the fulcrum along the Flapper Bar toward the snap ring to decrease the proportional band and increase sensitivity

Slide the fulcrum along the Flapper Bar away from the snap ring to increase the proportional band and decrease sensitivity

O-ring and Backup Ring Installation

Install new O-rings and Teflon backup rings

Did you use light oil on the O-rings?

Bearing Block and Shaft Installation

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 in the outboard bearing

Replace the remaining bearing block on the body and tighten

Reattach the body to the case (refer to 2.3, step 1)

Additional notes or observations

Pre-Maintenance Safety Precautions

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

If the pilot is electric, have you turned off and locked out all electrical power to the controller?

Release the process pressure from the controller body.

Level Controller Preventative Maintenance

Inspect the following components for wear and tear

If a leak is detected, have the O-rings been replaced?

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

Document the amount of debris buildup to determine the frequency of future inspections.

Ensure these instructions are not applied to the pilot

Refer to Paragraph 2.4 for pilot removal or replacement

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