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  1. #1
    Join Date
    Jan 2012
    Location
    Montreal, Canada
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    Cleaning contacts.

    Does anyone have a specific product they use when cleaning dirty dusty electrical connections. On contacters ,compresseur terminals .......
    I checked the web and found a few but I would like to know what some of you use .
    Thx

    Sent from my SM-G900W8 using Tapatalk

  2. #2
    Join Date
    Sep 2014
    Location
    NW Arkansas
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    870
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    Don't really use anything but nitrogen. Sometimes sandpaper on compressor terminals. We don't do much heavy commercial or industrial so most of the parts are replaced instead of maintained.

    Sent from my SAMSUNG-SM-G891A using Tapatalk

  3. #3
    Join Date
    Jul 2013
    Location
    Richmond, VA
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    I haven't tried it, but maybe electronics cleaner you find at an auto parts store? But if the contacts are pitted, it's done for and should be replaced.

    Sent from my XT1585 using Tapatalk

  4. Likes kangaroogod liked this post
  5. #4
    Join Date
    Feb 2017
    Posts
    3
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    These work the best. I have used them for years cleaning large and small contactors.

    IDEAL makes these non-metallic sticks used for cleaning Motor Armatures. I can't post the link but Google IDEAL CommutatorResurfacer, 5/8x3/8x6 in, Polish.

    They make different sizes.

  6. #5
    Join Date
    Jan 2012
    Location
    Montreal, Canada
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    Thx. I used to carry a little paint brush to remove dust on the contacts while tightening on pm.
    I saw a guy using some sort of aerosol on a letter sorting machine and thought that can come in useful. I didn't see what he used. Then again wanted to make sure its safe for our type of equipment.

    Sent from my SM-G900W8 using Tapatalk

  7. #6
    Join Date
    Jun 2012
    Location
    Northern NV
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    Do not use any abrasives. Contacts are made of copper coated with a thin film of silver. Remove the silver and you WILL replace the whatever it is the contacts are on.

    Removing dust and cobwebs? Try "canned air" used to clean computer keyboards.

  8. #7
    Join Date
    Apr 2006
    Location
    mechanical room
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    1,608
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    on big starters i order new contacts ( do not try to file as already stated ), when cleaning, i blow out or use those cheap nylon/plastic brushes for coils, come to think of it i need to order some more, dam things have legs

  9. #8
    Join Date
    Apr 2010
    Location
    California
    Posts
    131
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    A contact burnishing tool is the proper way, but sometimes the points are so pitted, and burned, to the point a fingernail file is required. I also use contact cleaner, and air in a can as well. "Whatever It Takes", "Including Replace", if need be.

  10. #9
    Join Date
    Jun 2002
    Location
    south jersey
    Posts
    1,572
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    I USE CONTACT CLEANER. IT'S A SPRAY ON PRODUCT THAT MOST SUPPLY HOUSES CARRY. Sorry for yelling.
    You need to put the phone down and get back to work!

  11. #10
    Join Date
    Oct 2014
    Location
    Minnesota
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  12. #11
    Join Date
    Oct 2012
    Location
    Danville, KY
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    272
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    Quote Originally Posted by jnsrose View Post
    I USE CONTACT CLEANER. IT'S A SPRAY ON PRODUCT THAT MOST SUPPLY HOUSES CARRY. Sorry for yelling.
    I used it for first time a couple of weeks ago on a big pm. It worked wonders for partially burnt contacts. I bought another can for anything else too.

  13. #12
    Join Date
    Jan 2012
    Location
    Montreal, Canada
    Posts
    113
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    I bought some contact cleaner but for dust it just evaporates and leaves it there. I think can of air is what im looking for.
    Thx again.

    Sent from my SM-G900W8 using Tapatalk

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