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  1. #1
    Senior Member silverfox's Avatar
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    OPM chart for PC-7424xp

    The owners manual shows a range from 2500-6800 OPMs. Wonderful...that's about as helpful as the cold, wet weather we are having at the moment.

    I'm curious as to why this information is so hard to find, given this model of polisher has been around for so long at this point in time. I'm sure somebody has a chart out there.

    I think perhaps Megs thought they were providing adequate information when they posted recommended OPM speeds of 3800 and 4800 for their new D/A MF correction system. That's fine if you have a Megs polisher because their OPM speed charts are ready available.

    I would suggest that AG provide additional OPM speed setting information in their description of these new Megs products ...as it applies to the Porter Cable 7424xp specifically (and Griot's/Megs) so that users of non-megs polishers don't have to spend so much time hunting down this information when our new MF DA products arrive.

    Perhaps I should have persisted longer in hunting this information down, but after numerous searches, and a couple hours on several forums I've come up empty....
    In my day we didn't have the Internet, iPods,iPads, or smart phones....but we had some really bad-azz cars.

  2. #2
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    Re: OPM chart for PC-7424xp

    Ditto what he said. It would be nice to have a sticky.

  3. #3
    Senior Member Mister B's Avatar
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    Re: OPM chart for PC-7424xp

    I do not know the exact settings for the newer 7424XP, but on the Porter Cable site I found these settings for the older PC7424 / Megs G100 polisher.

    PC7424 / Megs G100 - OPM settings.

    Speeds:
    1-2500 OPMs
    2-3200 OPMs
    3-3900 OPMs
    4-4600 OPMs
    5-5300 OPMs
    6-6000 OPMs
    Brian

  4. #4
    Senior Member silverfox's Avatar
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    Re: OPM chart for PC-7424xp

    The older PC model 7424 settings are NA...
    In my day we didn't have the Internet, iPods,iPads, or smart phones....but we had some really bad-azz cars.

  5. #5
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    Re: OPM chart for PC-7424xp

    This should be very close (I've seen a couple versions):

    Griot: 1= 2500 OPM; 2= 3300; 3= 4200; 4= 5100; 5= 6000; 6= 6800

    PC7424XP/G110v2: 1= 2500 OPM; 2= 3300; 3= 4000; 4= 4800;
    5= 5800; 6= 6800

  6. #6
    Senior Member Mike Moore's Avatar
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    Re: OPM chart for PC-7424xp

    Well after some research here's what I found.

    OPM's for Meguiar's G110v2
    Speed Setting 1 - 1800 opm
    Speed Setting 2 - 2800 opm
    Speed Setting 3 - 3800 opm
    Speed Setting 4 - 4800 opm
    Speed Setting 5 - 5800 opm
    Speed Setting 6 - 6800 opm

    OPM's for G100/PC
    Speed Setting 1 - 2300 opm
    Speed Setting 2 - 2350 opm
    Speed Setting 3 - 2600 opm
    Speed Setting 4 - 3280 opm
    Speed Setting 5 - 4780 opm
    Speed Setting 6 - 6100 opm

    OPM's for Meguiar's G110
    Speed Setting 1 - 2560 opm
    Speed Setting 2 - 3250 opm
    Speed Setting 3 - 3950 opm
    Speed Setting 4 - 4600 opm
    Speed Setting 5 - 5550 opm
    Speed Setting 6 - 6700 opm

    OPM's for Meguiar's G220
    Speed Setting 1 - 2760 opm
    Speed Setting 2 - 3450 opm
    Speed Setting 3 - 4150 opm
    Speed Setting 4 - 4800 opm
    Speed Setting 5 - 5750 opm
    Speed Setting 6 - 6900 opm

    OPM's for UD Machine
    Speed Setting 1 - 2660 opm
    Speed Setting 2 - 3950 opm
    Speed Setting 3 - 4130 opm
    Speed Setting 4 - 4900 opm
    Speed Setting 5 - 5240 opm
    Speed Setting 6 - 6540 opm

    OPM's for Griots 6"
    Speed Setting 1 - 2500 opm
    Speed Setting 2 - 3300 opm
    Speed Setting 3 - 4200 opm
    Speed Setting 4 - 5100 opm
    Speed Setting 5 - 6000 opm
    Speed Setting 6 - 6800 opm

    OPM's for PC7424XP
    Speed Setting 1 - 2500 opm
    Speed Setting 2 - 3300 opm
    Speed Setting 3 - 4000 opm
    Speed Setting 4 - 4800 opm
    Speed Setting 5 - 5800 opm
    Speed Setting 6 - 6800 opm

    Don't take it for gospel and if there are any changes please reply.

  7. #7
    Senior Member Mister B's Avatar
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    Re: OPM chart for PC-7424xp

    Quote Originally Posted by merlin View Post
    OPM's for G100/PC
    Speed Setting 1 - 2300 opm
    Speed Setting 2 - 2350 opm
    Speed Setting 3 - 2600 opm
    Speed Setting 4 - 3280 opm
    Speed Setting 5 - 4780 opm
    Speed Setting 6 - 6100 opm
    I wonder which settings are actually correct?

    The speed settings that I got directly from Porter Cables Website for the G100/PC7424 are quite different than what you found. Not saying whether the settings I found or the settings you found are correct as I have no way of knowing for sure.

    G100/PC7424 Speeds:
    1-2500 OPMs
    2-3200 OPMs
    3-3900 OPMs
    4-4600 OPMs
    5-5300 OPMs
    6-6000 OPMs
    Brian

  8. #8
    Senior Member Mike Moore's Avatar
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    Re: OPM chart for PC-7424xp

    Thanks, I don't know for sure what IS 100% accurate.

    I really was looking for the DA speed settings to use the DA MF system.

    Megs recommends
    4800 for DA MF cutting discs and DA Compound
    3800 for DA MF finishing discs and DA Finishing wax

    It appears a general "rule of thumb" would be
    speed 4 for DA cutting discs and Compound
    speed 3 for DA finishing disc and finishing wax

  9. #9
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    Re: OPM chart for PC-7424xp

    I was curious about this so I called Porter Cable. The lady I spoke with told me that each dial setting increments the OPMs by approximately 860. She did emphasize that this is an approximation. So going by this we have:

    1 -> 2500
    2 -> 3360
    3 -> 4220
    4 -> 5080
    5 -> 5940
    6 -> 6800

    This looks like it makes sense. If you take the difference between the high and low OPM values, divide that by the difference in the high and low settings, the resultant quotient is 860.

  10. #10
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    Re: OPM chart for PC-7424xp

    thanks mc9966!!!!!

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