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How To: Rupes Electric Motor Brush Replacement

by

Your car is clean and decontaminated, you plug in your Rupes, prime the pad, place it on your panel, hit the switch and…nothing. Let go, try again…nothing. Panic ensues, click, click, click…nothing! Oh no my trusty Rupes has failed me what do I do?

If this has happened to you and for the people it will happen to in the future, this, my friend, is for you.

Okay, a little dramatic? Maybe but this is a very real problem that there was not a ton of available info on when it happened to me. The electric motor brushes are a wear item that will fail at some point, and luckily very cheap and easy to replace. The therapy needed to get over this experience is a different story.

First, remove the 4 Philips head screws by the lever handle.

GlossAngeles Rupes Brush 1

Next, remove the plastic covering to allow access to the brushes.

GlossAngeles Rupes Brush 2

GlossAngeles Rupes Brush 3

This is your brush, this is one on either side.

GlossAngeles Rupes Brush 4

Pull the connector off, a pair of pliers will make quick work of this.

Then simply lift the spring and the brush will slide right out.

Here is a worn brush next to a new one, notice the dark area at the edge.

GlossAngeles Rupes Brush 6

Grab your new brush and slide it back in, ensure the spring is making contact and plug the connector back in.

GlossAngeles Rupes Brush 5

Repeat for other side.

Test for power and reassemble.

GlossAngeles Rupes Brush Video

Breathe a sigh of relief.

If this does not work you may need to replace or repair your power cable. Simple cut off and splice in a new cable.

Ian Howard
Ian Howard
Gloss Angeles
Irvine, CA
GlossAngelesDetailing.com
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5 comments on How To: Rupes Electric Motor Brush Replacement

  1. Ivan says:

    Thanks for that! I too had an issue with my Rupes starting but it was due to the power wires. Like you said, all it was was a cut and re-splice and it worked.

    My question is where do you get the replacement brush from? Or part number you look at?

  2. Bob says:

    Thanks for sharing this information.

    I know there is no definitive answer, but how many approximate hours of operation due Rupes brushes last?

    • Bob, unfortunately as you said its hard to give an answer. It depends on usage, the conditions they are in (hot, cold, humid, dusty etc) and amount of time per use. Best thing is to have some on hand to if it goes out ou can swap it with no downtime

  3. Andy Varney says:

    Love to make the cord longer what gauge would you use? Maybe like 25 feet thank you

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