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  1. #1
    Member NLS8520's Avatar
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    Counterweight question when running 3" pads

    My PC7424 XP as a 5" counterweight as stock, when running these smaller pads say in my case a 3" pad do you just keep the 5" counterweight as is? I plan to run the 3 inch pad and backing plate from Lake Country.

  2. #2
    Senior Member Eldorado2k's Avatar
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    Re: Counterweight question when running 3" pads

    I use my HF DA that way [using the 3" LC BP & pads] and it's absolutely no problem. You'll be fine.


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  3. #3
    Senior Member Mantilgh's Avatar
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    Re: Counterweight question when running 3" pads

    I just asked Mike about a similar thing in this thread.

    http://www.autogeekonline.net/forum/...ing-plate.html

    This plate is designed and balanced for the GG6 which comes with 6" backing plate.

    I don't know if LC took downsizing into consideration when they designed their backing plate.
    ____________
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  4. #4
    Member NLS8520's Avatar
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    Re: Counterweight question when running 3" pads

    Quote Originally Posted by Mantilgh View Post
    I just asked Mike about a similar thing in this thread.

    http://www.autogeekonline.net/forum/...ing-plate.html

    This plate is designed and balanced for the GG6 which comes with 6" backing plate.

    I don't know if LC took downsizing into consideration when they designed their backing plate.
    Thanks for the reply would be interested to find out if LC took the downsizing into consideration agreed.

  5. #5
    Senior Member Eldorado2k's Avatar
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    Re: Counterweight question when running 3" pads

    Quote Originally Posted by NLS8520 View Post
    Thanks for the reply would be interested to find out if LC took the downsizing into consideration agreed.
    It's a pretty bare bones backing plate.


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  6. #6
    Senior Member Calendyr's Avatar
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    Re: Counterweight question when running 3" pads

    I did transition my PC 7424 XP to a 3 inch pad (so I guess the backing plate is a tad smaller. It works well but there is a lot of fibration now. I did a quick scan of the AG store and a general search on Google but came out empty with counterweights smaller than 5 inch for the PC. Does anyone know if these exist, and if so where to get them?

    It probably won't cause any problem running this config as is, but I would really like to cut the vibration down.

    If a counterweight for 3 inch backing plates was available for Meguiars G110V2 polishers, I could switch them around too.

    I am wondering if the counterweight for the 3 inch Griot's Garage mini polisher could be used on other machines...?

  7. #7
    Senior Member PaulMys's Avatar
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    Re: Counterweight question when running 3" pads

    I converted my PC to a 3" as well. As Calendyr says, the vibration increases a bit, but nothing that bad IMO.

    Also, I rarely run the 3" pads past speed 4-4 1/2. But that's just me.

    I also run the LC 3" plate with Griot's 3" pads. (Regular and BOSS).
    It is no coincidence that man's best friend cannot talk.

  8. #8
    Senior Member FUNX650's Avatar
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    Re: Counterweight question when running 3" pads

    •If memory serves me correctly:
    -The PorterCable’s counterweight “sizes”
    mainly becomes a factor when using the
    DA as a sander.


    Bob
    "Be wary of the man who urges an action in which he himself incurs no risk."
    ~Joaquin de Setanti

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  10. #9
    Senior Member Mantilgh's Avatar
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    Counterweight question when running 3" pads

    I forgot I took these pictures till I read this thread.

    For comparison

    LC 3.5” orbital 2.6oz



    BOSS 3” 3.2oz



    HF 6” 5.0oz




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  12. #10
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    Re: Counterweight question when running 3" pads

    I use a 3" LC backing plate, and 3" LC Flat Pads on my 7424XP, and there's no noticeable increase in vibration or anything over the 5" BP and pads.

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