TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

Porter Cable problems.

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Old Aug 22, 2001 | 12:32 PM
  #1  
Lloyd of the Rings's Avatar
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Default Porter Cable problems.

The motor is spinning away but the polishing pad won't turn. Anyone else had this problem? Or has a fix?

If I hold the machine in the air the pad will turn, but I can hold the pad and stop it turning. If I power the machine on with the pad on the car it doesn't turn.

Any suggestions? Classic is UPSing me another one btw.
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Old Aug 22, 2001 | 12:45 PM
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Default Yours seems extra sensitive but that's the idea of a random orbit...

I ordered one and thought it was nice but didn't appreciate this type of indirect power. I prefer a direct drive unit much more.

However, your problem might be due to the wrong coutner weight. What type of backing pad are you using? What model number did you get, sander 7636 or polisher 7424...
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Old Aug 22, 2001 | 12:48 PM
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Chris, I think that's what it's supposed to do. The head floats freely around the center orbit.
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Old Aug 22, 2001 | 12:51 PM
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Polisher 7424, Velcro "Sand All" backing pad
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Old Aug 22, 2001 | 01:12 PM
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Default Where did the backing pad come from? Is it a plastic plate?

The 7424 comes with a counterweight for a 5" backing plate.
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Old Aug 22, 2001 | 02:10 PM
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Default Have the same backing plate; works fine. Chris, you have the power turned

up on that PC? Didn't even know it was adjutable at first....
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Old Aug 22, 2001 | 03:38 PM
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Started at 2; I'll try running 4
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