Hi from retired Englishman in SW France, Tues afternoon 15:32
My couple of thoughts!
Can you hear the motor running at all? If you can then it could be the belt which has either come off or is broken. If it is not running it could be the brushes BUT a word of warning- some have found that just having the brushes changed but not having the motor refurbished (having the commutator on which the brushes run/sit skimmed) has meant that the new brushes, not seating correctly, last only months. I replaced our Bosch motor after 17-18-19 years of steady use 1) because it was a difficult job to do! and 2) because of the experience of others. It did cost £250 but it will probably outlast us (I'm 70 this year)!!!
Following is my standard/generic response re belts (by the way if the belt has come off purchase a replacement, don't put the old one back on 'cos it will only come off again!)
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Belts are not expensive- sorry I do not know how much yours would cost- and are easy to be changed by a competent person:-
REMOVE POWER FROM THE MACHINE AND REMOVE THE BACK.
The motor support bolts should be loosened and the old belt removed. Often putting the new belt on is a bit of a struggle, even with the motor 'loose', because it is new and smaller!
Once on it should be tensioned by pulling the motor against the belt firmly- but not over tight- and the motor support bolts tightened.
ON NO ACCOUNT SHOULD ANY FORM OF LEVERAGE BE USED TO TENSION THE BELT. THAT COULD LEAD TO DAMAGE TO THE BELT, MOTOR AND BEARINGS- EXPENSIVE!
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Hope this is your problem solved.
Good luck,
John C
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