Question about Braun Syncro 7526 Electric Shaver

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Very Loud Since Replacing Cutter Block

I just replaced the cutter block and now the razor is very loud.  It seems to be vibrating a lot more than before as if the mechanism that comes out of the razor is no longer securely connected to the razor.  Any ideas?  Thanks.

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  • Anonymous Jan 12, 2008

    I have the same problem. I replaced cutter and foil at the same time on my Braun 7630. When reassembled it makes much more noise when operated. I reinstalled the old cutter and foil and it's still loud. I replaced foil and cutter several times in the past without this problem occuring.

  • Rapido Mar 18, 2008

    I replaced my cutter block within the last three months and the razor was operating fine until a couple of days ago. It suddenly became very loud and vibrates much stronger. Ordinarily, when cleaning the razor I lossen the cutter foil, turn on the razor and allow the loose cuttings to be vibrated out according to manufacturer directions. Now when I do this the cutter foil is popped off the razor. It apears as though the block may be pushing against the foil with more force but I don't know. Any solutions?

  • 2BorNot2B Mar 22, 2008

    My razor got very loud before I changed the cutter block and foil. I changed them and it made no difference. The razor is very loud now, but still seems to work OK.

  • maximoose Apr 11, 2008

    same as everyone else. replaced block a day ago. now it makes a very loud noise, and seems loose.

  • Anonymous May 14, 2008

    same problem here. Cutter pops right off when foil is removed and shaver is turned on.

  • Anonymous Jun 14, 2008

    I didn't update my earlier problem report. I sent the shaver to a Braun service centre and they diagnosed that the drive unit needed replacement. Cost about $Au85 in Australia.

  • BBBinIL Aug 01, 2008

    I have NOT changed the foil or cutter block, but today, while using the razor, I have the same symptoms described here by the other users. I'm wondering if it makes any sense to go buy a new blade/foil kit, as earlier users report that doesn't help. The loud rattle is present, vibrating the foil off of the head. I snap it back on, and when I turn on the razor again, it pops loose again. Took it apart, did a thorough manual cleaning, and slid the white plastic connectors back & forth a bit. It *seems* to have made it better, for now, but will monitor for the next few mornings.



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Replace the drive unit yourself it is easy
Buy the drive unit $25:
Open the shaver:
1) Use a small flat screw driver pry off the bottom (where the cord plugs in)
2) Remove the silver sides
3) Using a small torq driver remove the 4 scews
4) Open shaver
5) Remove circuit board with batteries
6) Remove and replace drive unit
7) Reasemble

Posted on Jan 07, 2009

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Solution No.1 above was right-on. I ordered motor drive from and part arrived on Monday, ordered on Friday...
Repair took 5 Minutes and now shaver is like new again for another 5 Years I hope... Thanx for the Tip. Only cost 30.00 even with postage.

Posted on Mar 27, 2009


One other possibility is that you have not pushed the cutter block all the way in. I had the problem of it popping off and I just needed to push it in a little further. Watch your fingers!

Posted on Jun 30, 2008

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Hi there,
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Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

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If you are having the same problem with both your old and new foils and cutters it sounds like there is a problem with the oscillator in the swivel frame. Sometimes the plastic oscillator inside will partially break and it can not vibrate under the load of the foil and cutters.
This swivel frame is part of the 'drive unit' and can be found available at See link below for item and scroll down the item page for installation video

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The one piece motor drive which also contains the shaver head in the Braun wear out. They can be replaced by yourself or a shaver tech. A good place for parts,

To disassemble the 7000 Series Braun shaver.

Disassembly of the 7000 Braun shaver is basically the same as the 8000 series Braun shaver listed below. The 7000 is actually easier to disassemble as the plastic is much thicker and the bottom socket cover pops right off as there are less tabs and they are bigger.

To disassemble the 8000 Braun Series shaver.

Remove the plastic cover on the bottom that covers the corded socket. Be careful, there are a total of two tabs on the short sides and four very small tabs on the long sides. I usedmy fingernail to create a space big enough to insert the corner of a credit card in the center of the long side opposite the blue light indicator, then gently removed the cover. Using a screwdriver could damage the plastic.

The two sides then pop off, they only fit on their respective side when replacing. Don't lose the two small black seals on the top of each side piece.

There are a total of four screws holding the body together. Remove the screws, using the proper flat blade or torx screwdriver. The shaver will then split into. You can then remove the the Motor Drive Unit and the separate circuit board with the batteries.

This would also be a good time to clean the goo buildup from around the shaver head.

Assembly is the reverse of above. The Motor Unit will only fit in one way, there is a flat side and a angular side. Be sure the pin for the trimmer is placed in its proper hole, or it won't extend.

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