Introduction

This replacement guide will show how to a replace a faulty on/off switch on the Dremel MultiPro 395.

Parts

No parts required.

Remove the blue caps located on either side of the MultiPro, using a 3 mm flathead screwdriver. Remove the blue caps located on either side of the MultiPro, using a 3 mm flathead screwdriver.
  • Remove the blue caps located on either side of the MultiPro, using a 3 mm flathead screwdriver.

Hi m8,

my 395 dremel. has died on me

no power & the multi speed selector his no clicking on it.

I've changed carbon brushes

& the amp fuse.any ideas..

steve - Reply

Carefully remove the carbon brushes attached at the end of the springs by gently pulling on the springs using your hands. Carefully remove the carbon brushes attached at the end of the springs by gently pulling on the springs using your hands.
  • Carefully remove the carbon brushes attached at the end of the springs by gently pulling on the springs using your hands.

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Pull one side of the hanger up and then pull away from the Multipro until the other side can be pulled out. Pull one side of the hanger up and then pull away from the Multipro until the other side can be pulled out.
  • Pull one side of the hanger up and then pull away from the Multipro until the other side can be pulled out.

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Remove the 4 15mm screws located on the bottom of the Multipro with a T-15 screwdriver. Remove the 4 15mm screws located on the bottom of the Multipro with a T-15 screwdriver. Remove the 4 15mm screws located on the bottom of the Multipro with a T-15 screwdriver.
  • Remove the 4 15mm screws located on the bottom of the Multipro with a T-15 screwdriver.

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Black Friday
Broken doesn't stand a chance.
Hold down the collet lock, remove the chuck cap from the top of the Multipro by screwing counterclockwise. Hold down the collet lock, remove the chuck cap from the top of the Multipro by screwing counterclockwise. Hold down the collet lock, remove the chuck cap from the top of the Multipro by screwing counterclockwise.
  • Hold down the collet lock, remove the chuck cap from the top of the Multipro by screwing counterclockwise.

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Remove the black housing cap from the Multipro located directly below the chuck cap. Remove the black housing cap from the Multipro located directly below the chuck cap. Remove the black housing cap from the Multipro located directly below the chuck cap.
  • Remove the black housing cap from the Multipro located directly below the chuck cap.

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Pull the bottom side of the casing up to remove it. Pull the bottom side of the casing up to remove it. Pull the bottom side of the casing up to remove it.
  • Pull the bottom side of the casing up to remove it.

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Gently lift the motor shaft out of the Multipro. Gently lift the motor shaft out of the Multipro. Gently lift the motor shaft out of the Multipro.
  • Gently lift the motor shaft out of the Multipro.

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Remove the rubber ring from the bottom of the armature. Remove the rubber ring from the bottom of the armature. Remove the rubber ring from the bottom of the armature.
  • Remove the rubber ring from the bottom of the armature.

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Pull the on/off switch off of the 120V field, paying careful attention to the prongs on the on/off switch. For reassembly, make sure the prongs are touching the metal connecters on the bottom of the 120V field. For reassembly, make sure the prongs are touching the metal connecters on the bottom of the 120V field.
  • Pull the on/off switch off of the 120V field, paying careful attention to the prongs on the on/off switch.

  • For reassembly, make sure the prongs are touching the metal connecters on the bottom of the 120V field.

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Remove the 2 wires on the back of the switch, connecting the cord to the switch, by inserting a small metal pick into the hole next to the wires and pulling the pick and the wire out together. Remove the 2 wires on the back of the switch, connecting the cord to the switch, by inserting a small metal pick into the hole next to the wires and pulling the pick and the wire out together. Remove the 2 wires on the back of the switch, connecting the cord to the switch, by inserting a small metal pick into the hole next to the wires and pulling the pick and the wire out together.
  • Remove the 2 wires on the back of the switch, connecting the cord to the switch, by inserting a small metal pick into the hole next to the wires and pulling the pick and the wire out together.

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Carefully insert the wires into the new switch making sure the white wire is attached to left hand side and the black wire is attached to the right hand side when the switch is facing up. By pushing the wires in with your hand. Carefully insert the wires into the new switch making sure the white wire is attached to left hand side and the black wire is attached to the right hand side when the switch is facing up. By pushing the wires in with your hand. Carefully insert the wires into the new switch making sure the white wire is attached to left hand side and the black wire is attached to the right hand side when the switch is facing up. By pushing the wires in with your hand.
  • Carefully insert the wires into the new switch making sure the white wire is attached to left hand side and the black wire is attached to the right hand side when the switch is facing up. By pushing the wires in with your hand.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

6 other people completed this guide.

2 Comments

Useful.

You do not have to always replace the switch.

You may instead clean it. Just did that.

Alas I didn' t take any picture, (I'm not accustomed to tablets and thought would take too much time).

Switch's surface that faces mains cable is a lid held by four built-in pins that go in its corners; they end in hooks that latch in the body of switch. When you take out the lid you have ample access to the switch itself. It is actually a potentiometer. Mine was covered by dust and grease, after cleaning with Xerox film remover it functioned again, (if I had had it, I would have just used alcohol)

To remove lid I just used a small not too sharp knife to pry between the lid and the body of switch, going slowly and lifting each corner just a little rrpeating that in order severa times.

Juan Concha - Reply

I too discovered that I could clean the potentiometer switch, and was then able to get it to function normally. Alas, I had already purchased the replacement switch, along with a spare set of brushes. I was quite surprised, by the amount of carbon remaining on the original brushes, especially considering the amount of use this particular Dremel MultiPro, Model #395 has logged! I found that simply by disassembling my unit, and blowing our the accumulated dust and gunk, yes that's a word in this man's vocabulary, it was ready to be reassembled, and has been working smoothly ever since! The fix-it directions provided here, were both simple and easy to follow, in addition to being filled with pictures. I am one of those who is very much, a visual learner. Kudos to the individual who produced this fix-it segment! A. Daniel Kunz - Nov. 23 2016

Dan Kunz - Reply

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