Thanks Thanks:  1
Likes Likes:  2
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 5 of 5
  1. 12th April 2020, 11:51 AM #1
    aussieadam
    aussieadam is offline Member
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    52

    Default Makita 125MM Random Orbital Sander making funny noise

    Hi all

    I noticed today my Makita orbital sander was starting to make a whistling/higher pitched noise when the motor was engaged. I made a video of the sound it makes (it's more noticeable towards the end of the video when I start powering down).



    Has anyone heard anything like this before? It's about 6 months old, bought from Mitre10

    Cheers

    sorry I couldn't upload the video to the forums, it doesn't work (nothing uploads) so I've linked to YouTube instead
    Reply With Quote Reply With Quote
  2. 12th April 2020 11:51 AM # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. 12th April 2020, 12:08 PM #2
    Chief Tiff's Avatar
    Chief Tiff
    Chief Tiff is offline Butcher of wood
    Join Date
    Jun 2010
    Location
    Bundaberg
    Age
    54
    Posts
    3,429

    Default

    The sound is rising in pitch (ie frequency) but the time taken to reach its peak amplitude lags behind the time taken for the motor to reach its peak speed, therefore I would say it is a product of the rotating platen. It may be something as simple as just air being pumped around it. Does the sound alter with and without a sanding disc being fitted?

    At worst it could be the bearing that the platen runs on but to be frank I don’t think there is any cause for concern. Bear in mind that you are running this under load conditions, in use the sander should not be stopped or started without being in contact with a workpiece.
    Nothing succeeds like a budgie without a beak.
    Reply With Quote Reply With Quote
  4. 12th April 2020, 12:24 PM #3
    aussieadam
    aussieadam is offline Member
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    52

    Default

    Thanks Chief Tiff.

    The sound is there regardless of whether a sanding disc is attached or not. It only started today as well. It makes the sound with and without the dust collector attached too. Also the lowest speed seems unusually slow, though to be fair, I don't use the low speed if ever.

    I'll keep monitoring it; if it gets worse then it's going back.
    Reply With Quote Reply With Quote
  5. 12th April 2020, 01:19 PM #4
    russ57
    russ57 is offline SENIOR MEMBER
    Join Date
    Oct 2015
    Location
    Ringwood, VIC
    Posts
    580

    Default

    If it's that new, I'd be taking it back if there is any doubt.one of the benefits of buying local retail is good warranty service.
    Reply With Quote Reply With Quote
  6. 12th April 2020, 03:23 PM #5
    elanjacobs
    elanjacobs is offline Taking a break
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    6,127

    Default

    Quote Originally Posted by Chief Tiff View Post
    The sound is rising in pitch (ie frequency) but the time taken to reach its peak amplitude lags behind the time taken for the motor to reach its peak speed, therefore I would say it is a product of the rotating platen. It may be something as simple as just air being pumped around it. Does the sound alter with and without a sanding disc being fitted?

    At worst it could be the bearing that the platen runs on but to be frank I don’t think there is any cause for concern. Bear in mind that you are running this under load conditions, in use the sander should not be stopped or started without being in contact with a workpiece.
    +1 for the pad spinning

    My Mirka did the same thing when running with no load/contact, I wouldn't be concerned about it.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Similar Threads

  1. VICTORIA Makita BO6030 Random Orbital Sander
    By hhpcheah in forum WOODWORK - Tools & Machinery
    Replies: 0
    Last Post: 10th January 2020, 10:31 PM
  2. 125mm vs 150mm Random Orbital Sander - ROS
    By Mhunter in forum HAND TOOLS - POWERED
    Replies: 6
    Last Post: 29th August 2011, 09:37 PM
  3. Makita Random Orbital Sander BO6030
    By Gomez in forum HAND TOOLS - POWERED
    Replies: 6
    Last Post: 2nd October 2010, 07:36 PM
  4. random orbital sander
    By kmthor in forum HAND TOOLS - POWERED
    Replies: 23
    Last Post: 9th June 2008, 12:19 AM
  5. I need to replace the velcro faced backing pad for Metabo Random Orbital 125mm Sander
    By kingink in forum TIMBER
    Replies: 5
    Last Post: 24th June 2006, 03:27 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules