Difficulty

Moderate

Steps

1

Time Required

                          20 minutes

Sections

  • Metabo drill repair electronics
  • 1 step

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Introduction

What you need

Step 1

              Metabo drill repair electronics
  • Carefully remove the potting compound using a small scalpel or a small sharp screwdriver. If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.
  • If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.
  • Check the adjustment pot for the correct resistance value (for example 100 kOhm).If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.

Carefully remove the potting compound using a small scalpel or a small sharp screwdriver. If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.

If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.

Check the adjustment pot for the correct resistance value (for example 100 kOhm).If it has changed significantly due to aging (eg over 250 kOhm), replace it with a new or a fixed resistor (try it). Electrolytic capacitors are usually still in order.

1024

Repeat the steps in order to reassemble your device.

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Jude Quinn

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                    Moxel

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ilija.buric - Nov 9, 2018

Reply

hello. how to remove that stupid plastic

Moxel - Nov 10, 2018

Reply

Which plastic do you mean ? if the electronic coverd with a plastic box ? I not sure but i think i have taken a knife. Its a long time ago since i reapar it.

Markus Voegtlin - Jul 28, 2019

Reply

Hat jemand eine Lösung gefunden, die Plastikgussmasse zu entfernen ?

Roman Berger - Sep 29, 2021

Reply

Carefully and slowly push a sharp, small screwdriver (or a small knife) into the plastic and remove the first mm in the depth; start away from the electrical components, that you see. Remove milimeter by milimeter into the deep. There is nothing underneeth, that you can destroy (like a printed circuit - it’s all on the other side). Anyway, be careful - no brute force.

When you see some light color, you are at the printed board; from here it’s easy to remove more.

Just get the Poti free from the plastic and exchange it (100k)

Adjust the new Poti to the rpm that the driller had before.

Since I damaged the Elko next to the Poti, I took all the values (in case you want to exchange them):

1x 1µF (upper right - could not read voltage - its probably a 25V due to the size)

1x 4,7µF (next to the Poti - since I could not read the value, I put a 50V to be on the save side)

1x 10µF / 25V (lower left)

1x 22µF / 25V (up in the middle)

1x 33µF / 35V (upper left)

and the 100k Poti (contact size 1 x 7mm / 0,04"" x 0,28"" (B x L) )