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Marco UP Series Electric Pump Electronic Sensor Replacement

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  1. Marco UP Series Electric Pump Electronic Sensor Replacement, Prepare the tools: étape 1, image 1 de 1

    • The additional sensor with the joint and the heat shrink tubing is available as a replacement kit on www.marco.it .

    • Kits are only available as a registered user, and can be seen for each pump in their dedicated tab on the page.

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  2. Marco UP Series Electric Pump Electronic Sensor Replacement, Cut the plastic tie: étape 2, image 1 de 1

    • Free the cables by cutting the plastic tie.

    • Don't cut the cables that connect the sensor to the pump.

    • Dont' damage the cables' insulation while cutting the plastic tie.

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  3. Marco UP Series Electric Pump Electronic Sensor Replacement, Cut the joint between the sensor and the motor: étape 3, image 1 de 2 Marco UP Series Electric Pump Electronic Sensor Replacement, Cut the joint between the sensor and the motor: étape 3, image 2 de 2

    • Use the pliers to cut the red and black cables before and after the joint.

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  4. Marco UP Series Electric Pump Electronic Sensor Replacement, Remove the old sensor: étape 4, image 1 de 2 Marco UP Series Electric Pump Electronic Sensor Replacement, Remove the old sensor: étape 4, image 2 de 2

    • Use the 17mm wrench to unscrew the sensor.

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  5. Marco UP Series Electric Pump Electronic Sensor Replacement, Screw in the new sensor: étape 5, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Screw in the new sensor: étape 5, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Screw in the new sensor: étape 5, image 3 de 3

    • Screw the new sensor by hand for the initial part.

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  6. Marco UP Series Electric Pump Electronic Sensor Replacement, Tighten the sensor: étape 6, image 1 de 1

    • Use the wrench to tighten it in place.

    • Don't over-tighten the screw!

    • Don't add PTFE tape on the screw: there's already an o-ring to seal the connection and it may cause problems to the non-return valve (check valve) underneath.

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  8. Marco UP Series Electric Pump Electronic Sensor Replacement, Check how long you want to strip off the cable: étape 7, image 1 de 1

    • Use the joint as a reference on how much you need to remove.

    • Keep in mind that you want to have as much wire inside as possible, but you want to avoid that the peeled wire exits the joint.

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    • Use the cutting plier or (if you have it) the stripping plier to remove the sheath.

    • Try to be careful: you don't want to cut the wires inside, especially on the larger pumps.

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  10. Marco UP Series Electric Pump Electronic Sensor Replacement, Insert the heat shrink tubing: étape 9, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Insert the heat shrink tubing: étape 9, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Insert the heat shrink tubing: étape 9, image 3 de 3

    • Insert the heat shink tubing on both motor's cables.

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  11. Marco UP Series Electric Pump Electronic Sensor Replacement, Insert the metal joints: étape 10, image 1 de 1

    • The cable has to be totally inside the metal joint: if you have a longer peeled cable, cut it a little to have it aligned as in picture.

    • Don't insert the plastic sheath inside the metal joint: it worsens the connection and may cause overheating in the large pumps!

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  12. Marco UP Series Electric Pump Electronic Sensor Replacement, Press the metal joint: étape 11, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Press the metal joint: étape 11, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Press the metal joint: étape 11, image 3 de 3

    • Start on the motor side, and press the metal joint on the cable.

    • To have a stronger force in closing the joint use the internal part of the plier, as showed in the picture.

    • Proceed with by inserting the other end, the short cable coming from the sensor.

    • Repeat the process also for the other cable.

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  13. Marco UP Series Electric Pump Electronic Sensor Replacement, Cover the metal joints with the heat shrink tubing: étape 12, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Cover the metal joints with the heat shrink tubing: étape 12, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Cover the metal joints with the heat shrink tubing: étape 12, image 3 de 3

    • Insert the heat shrink tubing.

    • Make sure that it covers perfectly the joint (it must be centered!) on both ends .

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  14. Marco UP Series Electric Pump Electronic Sensor Replacement, Heat the tubes: étape 13, image 1 de 2 Marco UP Series Electric Pump Electronic Sensor Replacement, Heat the tubes: étape 13, image 2 de 2

    • Heat the tubes until they shink on the joint evenly.

    • Don't heat too much: you may melt the cables.

    • If you don't have a heat gun, you may also use a lighter, but don't touch the plastic with the flame: keep some distance.

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  15. Marco UP Series Electric Pump Electronic Sensor Replacement, Loop the wires: étape 14, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Loop the wires: étape 14, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Loop the wires: étape 14, image 3 de 3

    • Loop the wires as shown in the pictures.

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  16. Marco UP Series Electric Pump Electronic Sensor Replacement, Add the plastic strap: étape 15, image 1 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Add the plastic strap: étape 15, image 2 de 3 Marco UP Series Electric Pump Electronic Sensor Replacement, Add the plastic strap: étape 15, image 3 de 3

    • Fix the cables using the plastic strap.

    • Cut the excess of the plastic strap using the cutting pliers.

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  17. Marco UP Series Electric Pump Electronic Sensor Replacement, You're done!: étape 16, image 1 de 1

    • You can now enjoy your updated sensor!

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Marco Spa

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