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  1. #1
    Join Date
    Jan 2008
    Location
    Nth Est Victoria, Australia
    Posts
    600

    Default Bosch GEX125 AVE

    I'm having problems with my random orbital sander spitting off the Velcro pad. Tried using it twice today, within seconds of use off comes the pad. happens with the 125mm pad, didn't happen with the 150mm pad. Although I've noticed that the top of thread on the bolt holding the pad on is a little worn, because of the out of control spinning pad. The centre locating hole is worn on the 125mm pad as well. The 150 mm pad is ok, but I don't want to use it until I've sorted the problem.
    Has anyone on the forum had this problem before? How did you remedy the problem? Is it just a matter of replacing the bolt?
    Thankyou.

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  3. #2
    Join Date
    Feb 2015
    Location
    Strathalbyn South Australia
    Posts
    1,055

    Default

    I had a few issues with mine (PEX400) similar to what youíre having, I purchased a replacement Velcro base plate and when I reinstalled it I used a little low grip thread adhesive to stop the bolt coming out. Itís been great for the last five years since.


    Sent from my iPad using Tapatalk

  4. #3
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    57
    Posts
    66

    Default

    Is it the sanding disc or the pad coming off ?

    If its the sanding disc you just need a new velcro pad.

    If its the pad coming off then there is something really wrong, the pad is located onto a hub with three locating pins, the bolt holds the pad to the hub. The centre hole should have no force applied That would enlarge it unless the pad has not been fitted to the engagement pins. Once engaged the bolt has to be tight but it does not take significant force from the pad it is all tensile load.

  5. #4
    Join Date
    Jan 2008
    Location
    Nth Est Victoria, Australia
    Posts
    600

    Default

    Thanks Cal, after I buy a new pad and screw I'll try putting on a bit of lockthread/low grip adhesive. And see how it goes.
    Droog, the old version of the gex125 had 3 locating pins (which I never had a problem with, don't know why people [bosch] insist on fixing things that aren't broken). The new version has a connection that resembles a sprocket/gear like appearance. I had the older version, never had a problem with it.
    Cheers all.

  6. #5
    Join Date
    Jan 2008
    Location
    Nth Est Victoria, Australia
    Posts
    600

    Default

    Went to the hardware store today, they still have the pads with three locating holes. apologies Droog.

  7. #6
    Join Date
    Aug 2011
    Location
    Brookfield, Brisbane
    Age
    46
    Posts
    976

    Default

    I had the same problem.

    Turns out I wasnt tightening the bolt enough; required considerably more force then expected

  8. #7
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,179

    Default

    I posted the exact same problem a month or two ago. It happens more with the hard 150m pad which is an accessory.
    A drop of a weak threadlocker solved my problem but it shouldn’t happen.

  9. #8
    Join Date
    Jan 2008
    Location
    Nth Est Victoria, Australia
    Posts
    600

    Default

    No, Lappa, it shouldn't happen. So Bosch what do you have to say for yourself ?

  10. #9
    Join Date
    Jan 2014
    Location
    Sydney Upper North Shore
    Posts
    4,179

    Default

    Quote Originally Posted by HUON View Post
    No, Lappa, it shouldn't happen. So Bosch what do you have to say for yourself ?
    Bosch will do nothing - as usual. I once sold Bosch automotive test equipment and they would never listen to concerns or suggestions.
    Everything they makes is perfect and in OZ we donít need things like ROS dust extractor accessories which, btw, are manditory in the USA.

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