Question about Metabo SR20 23 1/3 Sheet Orbital Finishing Sander

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How do you dismantle the main body from the base

In order to change the carbon brushes

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Replacement of carbon brushes


If you have the parts, then installation is simply the reversal of the dismantle. Take photos along the way if unsure. The only thing I would recommend is to give the commutator, (the segments where the brushes rub), a very light emery to remove any arc marks that may have occurred due to short brushes. Once this is done and the brushes are installed, if you want to be pedantic you can use a fine bit of emery under the brushes and around the commutator and 'Bed' the brushes into the shape of the commutator. This is usually not necessary with such small brushes. Gently 'running in' the brushes under use will suffice. Cheers Bob

Jun 13, 2016 | Saws

1 Answer

Where to get new motor Carbon brushes error f06


Have you already removed the motor and dismantled it to check the brushes. It is unusual to find a universal motor (that uses brushes) in a washing machine. Normally they use an induction motor that does not have brushes.

May 25, 2016 | Washing Machines

1 Answer

Electrolux el 7020 Canister Vacuum shuts of continuously do i need to Change the Carbon Brushes


How old? If fairly new you should not need brushes, bad brushes would probably not allow the vacuum to run at all. Last time you changed filter? Sounds like the cover to the filter is not closing well enough. There's also possibility you have a clog in the wand or hose.

Mar 05, 2015 | Electrolux EL7020 Bagged Canister Vacuum

2 Answers

Miele w911 washing machine Main Wash light flashing. Replaced carbon brushes. Machine needs kick start or ???


carbon brushes r black as, well, carbon. They need replacing when they r worn not blackened.
try something else

Feb 18, 2015 | Miele Washing Machines

1 Answer

Car lopes as soon as it warms up


idle air control is looking for base idle. throttle body base idle plate is dirty with carbon. cleaned out throttle plate with carb cleaner and tooth brush. use rags to catch black carbon.open plate.by some one hold throttle plate open with gas pedal. engine not running. after completed, start engine. run 1500 prm for a short time to clean out excess fluid. that should fix your problem..

Jan 18, 2013 | 1991 Chevrolet Corvette

1 Answer

2003 gmc envoy xl 4wd 5.3 litre idles low and stalls mainly when parking but sometimes also when coming to a stop...have replaced many parts already.


Hello: Get some carburetor cleaner, remove rubber tube going to the throttle body. Spray cleaner on rag and open throttle plate and clean all black stuff (carbon) off the throttle plate and the inner bore of the throttle plate. Make sure its clean, You can spray some in the throttle body but not very much as too much and you cab blow the engine up. If build up is bad (carbon) go to Auto Zone and purchase a small brass bristle brush to help remove carbon.

Oct 24, 2011 | 2003 GMC Envoy

1 Answer

Won't start. not a battery problem. i think my motor is bad. how much does a motor usually cost?


You are looking at region of $150 and labour on top. I am putting a tip together on starters in general that I include herein. When you get your motor off it could be helpful and save you some money in the process:-

Dead...? Sticky solenoid due to corrosion or glued up lubricant and dirt ? dismantle and rub clean with some emery paper. Worn starter motor armature brushes ? strike motor body with end of a piece of timber whilst cranking; the jolt may encourage enough contact to get the starter motor running for long enough for ignition to occur. ? For a permanent fix dismantle the starter motor and replace the carbon brushes. Corrosion in the starter motor body between the steel jacket and aluminium gear casting.? insert self tapping screw between the two parts to bridge the corrosion? For a permanent fix remove motor and strip down and wire brush components back to the metal and then reassemble.

Click, click, click ...occasional start Worn contact plates in solenoid failing to provide high current to energize the starter motor windings? dismantle solenoid and replace copper contact plates and plunger ring (readily available as an inexpensive overhaul kit).

Wahr, wahr, warh...laboured motor Worn bronze bearings on the ends of the starter motor are allowing the armature to run off centre and grind against the surrounding field magnets on the inside of the motor body? dismantle motor and replace the bronze bearings (inexpensive fix). Over-drawing motor - high current is drawn but this is not translated into effective turning effort by the motor. The field magnet windings have begun to short out, probably as a result of age or through over use in constantly trying to start a poorly igniting engine ? replace/ exchange the starter motor as the field windings of the stator magnets on the motor body are fried and beyond repair. Wheeeeeeee ..no start Although engaged fully with the flywheel a slipping pinion gear clutch means that the motor is ineffectual at turning the engine over ? remove the starter motor and replace the pinion gear on the end of the starter motor shaft


Lottery start...occasional no start

  • The motor occasionally refuses to turn first time and has a defined rhythmic pulse when turning over - this is due to either burnt out armature coil or the contact face of the armature has become badly pitted causing the brush to miss making contact.

? - replace/ exchange the starter motor as armature windings are beyond repair.



Sep 26, 2010 | 2000 Jeep Grand Cherokee

3 Answers

2002 Toyota Tundra Stalls


The throttle body needs cleaning. It has some carbon build up, and when the battery went dead the computer lost its learned values, one of which is base throttle position. Now its reset back to factory specs, not accounting for a dirty throttle body. Seen it a million times

Dec 31, 2008 | 2002 Toyota Tundra

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