Question about Fein FMM250Q Select Multimaster Oscillating Tool Kit

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Fein multimaster looses rpm after startup

I have a fein multimaster less than 2 years old, seldom used. i turn it on and it goes to full rpm for maybe 5 seconds then constantly looses rpm.

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  • 52 Answers

Sounds like one of hte brushes is hanging up in the brush holder allowing macine to slow up. Check this 1st and make sure brushes are about 1/4" long.

Posted on Jan 11, 2009

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The rotary speed dial in my Fein MultiMaster slips caused by the vibration when the tool is turned on. Is there a way to tighten it?


No way of tightening its a variable resistor molded in to Electronics. Would try get a warranty replacement if its close to any of the warranties they offer. Its One year normal or Three years free extended World Wide Warranty. Would recommend anyone buying FEIN to extend it free within four weeks of purchase.

Aug 17, 2014 | Fein FMM250Q Select Multimaster...

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Fein


A defect armature that happends oft by this tool multimaster there was a little serie of this 250 watt budget machines that have hiddens defects in the armature if you look at that part then you see not a burned field or armature but the tool becomes very hot to hold in your hands. if you are by a service dealer he can confirm the problem that in most cases not was your fault because if its not burned , but when its burned then replace BOTH the electric field and the armature if you can become that cheap , most times this budget tool is not to expensive to get new. but in that case the 350Watt tool little difference but more to do with.

Apr 19, 2014 | Fein FMM250Q Select Multimaster...

1 Answer

Fein multimaster


interference suppression capacitor or electric field .

Apr 19, 2014 | Fein FMM250Q Select Multimaster...

1 Answer

FEIN FMM250 STOPPED WORKING


an broken connector wire , or powercable, an autostop activated carbonbrush? a broken field connector 1 of the 4 or an armature with a broken collector in the commutator circle. the electronic moduul to see in the last possibillity.

Sep 11, 2013 | Fein FMM250Q Select Multimaster...

1 Answer

FEIN FMM250 NOT WORKING


Check Cable Or Brushes. while tool is not plugged in to wall socket unscrew three 15T torque screws check cable with multimeter for open wires look at brushes pull out of holders.

Sep 11, 2013 | Fein FMM250Q Select Multimaster...

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Fein multimaster repair shops/centers????


Wow, I don't have a multimaster but I want one. I know they make two kinds. One that's 700.00 dollars and one that you can get at the hardware store. I'm beginning to think there might be a problem with the switches in this thing. Go to eReplacementParts.com and view the schematics to order a new switch.

Dec 19, 2011 | Fein FMM250Q Select Multimaster...

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Sometimes FMM250Q won't start? It is brand new and barely used. Thanks Alan


Hi Alan, There seems to be a lot of this going on with the multimaster. Try replacing the switch. Go to eReplacementParts.com

Sep 01, 2010 | Fein FMM250Q Select Multimaster...

1 Answer

Fein multimaster sanding attachment broken


Pretty sure things like that are considered expendable. Pat yourself on the back for getting so much sanding done and buy a new one.

Sep 26, 2009 | Fein Sanders & Sanding Blocks

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Fein Multimaster not oscillating


hi yes if you remove the gearbox from the armature housing then strip the cutter shaft from the gearbox by the circlip and bearing then the fork will fall out.
Have a look at this web www.fein.de/fein-multimaster/au/en/download/index.html
and follow link to the diagram of your machine may be helpfull.
Thanks. Sean.

Sep 22, 2008 | Sanders & Sanding Blocks

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