Introduction

If you need to replace some pieces (like the brusholder circuit), this guide will help you disassembling the pump.

Image 1/3: Unscrew the 4 screws with the screwdriver. Image 2/3: Remove the O-ring. Image 3/3: Remove the O-ring.
  • Put the pump on the table, heading up.

  • Unscrew the 4 screws with the screwdriver.

  • Remove the O-ring.

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Image 1/3: Remove the second gear. Image 2/3: Remove the key, with the help of the flat head screwdriver: try to raise it from the bottom. Image 3/3: '''Don't forget to remove the key!''' If you do, you won't be able to continue.
  • Using the flat head screwdriver apply some force between two teeth and try to lift the gear. Use the other hand or a plier (usually you don't need it) to take the first gear away.

  • Remove the second gear.

  • Remove the key, with the help of the flat head screwdriver: try to raise it from the bottom.

  • Don't forget to remove the key! If you do, you won't be able to continue.

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Image 1/2: Take away the washer and the little O-rings. Image 2/2: Take away the washer and the little O-rings.
  • Unscrew the nuts on the back using the socket wrench screwdriver.

  • Take away the washer and the little O-rings.

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Image 1/3: Then, again, keep your thumb on the shaft and lift the motor's stator. Image 2/3: '''Be careful:''' the magnetic field is strong, your finger may squeeze between the parts! Image 3/3: '''Be careful:''' the magnetic field is strong, your finger may squeeze between the parts!
  • Keep your thumb on the shaft and lift the pump's head pulling from the hosefittings.

  • Then, again, keep your thumb on the shaft and lift the motor's stator.

  • Be careful: the magnetic field is strong, your finger may squeeze between the parts!

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Image 1/3: You need to have them separated, to assembly those back again. Image 2/3: You can now pull out the bearing and the spring from the back plate, using the flat screwdriver or the rotor shaft. Image 3/3: You can now pull out the bearing and the spring from the back plate, using the flat screwdriver or the rotor shaft.
  • If the rotor gets stuck in the stator, push it from the bottom and pull it from the other side.

  • You need to have them separated, to assembly those back again.

  • You can now pull out the bearing and the spring from the back plate, using the flat screwdriver or the rotor shaft.

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Image 1/1:
  • These are the pieces that you've just disassembled.

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Conclusion

If you need to assemble the pump, use this guide: Marco UP Series Electric Pump Assembly

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Marco Spa

Member since: 12/04/2015

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