Draining the Cooling Circuit

Required Tools & Equipment

  • A bucket
  • Hand vacuum pump

Unplug the printer’s power cord entirely from the rear of the unit before undertaking this procedure.

  1. Place your bucket directly under the radiator located at the rear of the printer. A 5 gallon plastic paint bucket works well and is widely available.

    Position a bucket to catch the draining coolant.

  2. Remove the black cap on the coolant reservoir.

    Remove the black cap.

  3. Place a cloth or paper towel under the loosened tube to catch draining coolant. Remove the tube (a) connecting the reservoir to the printer on the pump side and position the tube in the bucket.

    Remove the coolant drain tube.

  4. Let the coolant drain into the bucket.

    The coolant drains into the bucket.

  5. Use your hand vacuum pump in the pressurize mode to force air into the cooling circuit and push coolant out of the printer outlet tube.

To refill the cooling circuit, follow Filling the Cooling Circuit.

Last modified: November 18, 2019