Rupes LHR21ES - Sparks?

Just got my new Rupes 21 in from Detailers Domain along with a bunch of other goodies and I must say I am pleased. Its a great upgrade from what I am used to using for paint correction.

However I noticed that when I was working with he 21 last night that I could see sparking inside of the body of the polisher. If I was looking down from the top through the vents in the top of the body I can see sparks some times.
Wondering if this is normal or if anyone else has seen such a thing.

The machine works great, nothing abnormal there, paint corrected quickly as advertised.

SS

 

Send Phil and email he will help you out. I have mine on its way so I'm not sure.

 

Ive never pulled apart a rupes before, but if the electric motor inside uses brushes, its probably normal. Electric drills do the same thing.

 

I assumed this was the case, I just wanted to make sure as this is my first time owning a Rupes polisher and I didn't want to damage it.
And, yes, it does have brushes in there. I confirmed with a little pen light peaking through the vent holes.

 

Its got a warranty, no worries lol.

Dont they come with an extra set of brushes?

 

I didn't see any in the box but I will take another look.

Working just fine, two cars down and no issues.

 

Yea, i checked last night and my Pe14 rotary has small sparks too, any brushed electric motor usually does it. Im sure its normal.

 

Sparking is normal, it is a brushed motor. When you turn it on any drill, saw, grinder, polisher, whatever will spark. If there's no spark, then tool won't even work.

Edit: I slept on this for a night and thought I should update. As brushes wear and become worn out, that's when you'll get the "arching, sparking, lightning" in a tool effect. If that's the case, then replace the brushes and hopefully the motor isn't bad, but probably needs to be cleaned.

 

Blow out the housing for sure, but some visible arcing inside the tool around the motor is perfectly normal. It happens with virtually any electric tool that uses a similar brush motor.

 

Can see a spark every so often on mine and seems fine.