Introduction

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

Put the pump on the table, heading up. Unscrew the 4 screws with the screwdriver. 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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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.
  • 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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Unscrew the nuts on the back using the socket wrench screwdriver. 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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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!
  • 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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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.
  • 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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These are the pieces that you've just disassembled.
  • 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

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