PC Counterweights

A

AdamCKach

New member
Using the 7424 with Sonus pads, I experience a moderate vibration/shaking of the unit when I approach 4 on the dial. Should I pop on the 6" counterweight, or is this normal for the PC? I'm a noob with it, but have had pretty good results so far. Thanks folks.
 
When I got my PC 7424, I put on the 6" plate and counterweight. Never looked back, as I've never had a vibration problem, at speeds <7.

Jeff Laughhunn
 
First, Yeah the counterweight makes *some* difference, but after a few hours of using the pc, your hands will still be numb.



Second, Jeff, your PC has a 7 ??
 
In my best Foghorn Leghorn voice...

"That's a JOKE, there, Son, don't ya get it?".

Yes, my PC only goes to 6.

Jeff Laughhunn
 
Yeah, i just wanted to make sure that they havent beefed up the power of my littl old workhorse over here. If they had, you would have seen a used one up for sale and i would have a couple new one Instantly. Speaking of that, i need to go get another one, mine is starting to make a non-normal noise, and i want to give it a rest for a few days.



does anyone know if the brushes inside the motor are replaceable or not?
 
Brian,

What's the largest pad you've tried with the 5" plate? I've wanted to step up to the 7.5", but wasn't sure if this would be a good thing.

Thanks
 
Jeff Laughhunn said:
Brian,

What's the largest pad you've tried with the 5" plate? I've wanted to step up to the 7.5", but wasn't sure if this would be a good thing.

Thanks
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It is not. The highest you should go is a the 6 inch. If you want 7.5" get the 6" plate.
 
4DSC said:
Try a 5" backing plate and a 6" counterweight. Best combo.
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Yeah Yeah ,what he said,I use the 6inch counterweight with my Sonus pads :xyxthumbs

Who's hands are getting numb :nixweiss man I can use mine all day and then some .
 
Thanks folks. I've been using the 'stock' 5 inch counterweight, and at high speeds, my hands felt numb after use. I'll kick it up to the 6 inch counterweight I bought.
 
AdamCKach said:
Thanks folks. I've been using the 'stock' 5 inch counterweight, and at high speeds, my hands felt numb after use. I'll kick it up to the 6 inch counterweight I bought.
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You will be amazed at the difference, much better. I originally bought the CMA package a little over a year ago. It was the 7424 which included the 5 inch counterweight and 6 inch polishing pad. Recently it began to have problems electronically, the off/on switch was randomly taking two tries to come on and the speed dial was only working on speed 6 and speed 4. I know it's about to die totally and I have to take it to get serviced, but didn't have time to wait the week they quoted me between details, so I went and bought the 7336 at Lowes with the 6 inch counterweight. :eek: WOW :eek: what a difference. This setup is much much smoother with much less vibration. I was also going thru pads much faster than I thought I should. I think your pads should last longer. I could blow through pads real quick which I think was related to the vibration especially on speed 6. Just did a pretty extensive polish with my new 7336 PC on a BMW 325i with massive swirls and holograms on the hood, and my pads showed no wear or tear and it came out great.
 
I just found the 6" counterweight from Coastal, and it's only $1.95 but the shipping is $7.50 :scared Is there anywhere else I can get one of these without having to pay such high shipping charges??
 
JDookie said:
I just found the 6" counterweight from Coastal, and it's only $1.95 but the shipping is $7.50 :scared Is there anywhere else I can get one of these without having to pay such high shipping charges??
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Look for a Porter Cable Service Centre in your area. Tha'ts where i bought mine.



Bob
 
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