#3706 Heater Removal Procedure MK2

In order to change the complete heating tray, you must:

  1. Open the electronic box on the left.
  2. Unscrew the 2 top connections of the large terminal block (bed power) and remove the cables.
  3. Disconnect the Dupont connector from the “TB” bed sensor.
  4. Unscrew the adjustment knobs at the front of the plate and remove them with the springs and washers.
  5. Then, unscrew the 5.5mm nuts on the back of the tray BELOW the cart.
  6. Unscrew the central screw of the tray.
  7. Pull out the tray and remove the cables from the guide chain.
  8. Put the cables of the new tray back into the chain.
  9. Put the bed back in place. If this one does not have the screws, put back the ones from the old tray with the same distance between the nuts.
  10. Tighten the rear nuts from below, maximum tightening 1Nm.
  11. Reassemble the adjustment knobs at the front as follows: the washer against the carriage, the spring and the plastic knob. Tighten fully then unscrew 2 to 3 turns.
  12. Tighten the central screw to have a slight downward arrow in the center of the plate (about 0.5mm, 1mm maximum).
  13. Reconnect the sensor connector to the motherboard (TB).
  14. Reconnect the 2 power cables of the bed on the terminal block, the direction is not important, because it is not polarized.
  15. Finally, close the electronic box.

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