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On my first generation 7424, it has stamped on the counterweight to use only 6" pads. I have used 5.5" pads before and didn't notice any kind of wobbling or vibrations with the weight on and these pads. I did not see a weight that was designed for use with smaller pads, so should I go ahead and take the counterwight off? What if I tried using 4" flat pads, does the weight need to be removed for sure with a pad of this size?
I believe they sell different size counter weights for different size pads. There is a reason they sell them. I have no experience with pc but I know when an engineer designs a part, its a good idea to use the part. You might not get wobble but it might cause stress on the machine leading to premature failure. Like I said, I don't know for a fact, just had been my experience. Others will chime in I'm sure.
I've never swapped out the weight when using my smaller backplate. I just use the one for the 5"
If you remove the counterweight and turn the machine on, it's going to fly apart on you. That counterweight holds the spindle/bearing assembly in place.
I agree with your statement, but I was told by a PC rep that the counter weights would make a difference on sanding disks and won't make a difference on buffer pads.Quote:
Originally Posted by Mobile detail
i ruined the megs 3'' backing plate somehow and i suspected the same thing at first, the counterweight. what actually happened was the thread kinda striped from it wobbling so much. i didnt realize it was wobbling till the damage was done. it was either the wrong attachment or the counter weight being to big idk
I think the counterweight would only cause vibration and not the stripped threads
It seems like there should be different sized counter weights available, but the only thing I can find is the stock replacement weights for the PC. No different sized ones seem to exist. I could see using the stock sized weight for 6.5" pads and even 5.5" pads, but using a 4" kind of worries me when the weight has Use 6 inch pad only stamped on it.
So other than using a 3.5" backing plate, is there anything else I should do before using a 4" pad on the PC?