So I got a 7424 and need to know which ....

[Petrol]

counterweight to use with it. I got a PC 7424 at a heck of a price and I got the 5 in. backing plate but i got 6.5 inch pads at the recommendation of the website. I have seen somewhere where it says to use only the five inch PLATE with the five inch counterweight. I have also seen where it says to use a six inch counterweight for any PADS larger than 5 inches regardless of backing plate size. I will not be using the pads for correction and am aware that the 5.5 in pads are better for correction but at this time i am only using the PC for application/removal of product. So do i need to get the 6 in. counterweight or will i be fine with the factory installed counterweight?

Thanks

 

[02nissanISR]

I also have the pc with the same set up i think AG did this as an entry level setup to give plenty of room for error. with the 5 in. or 5.5 in. plate and 6.5 in. pads there is a lot of room between the edge of the plate and the edge of the pad. The problem I think is as a result the machine is not as smooth as it could be with this set up. I've used mine for correction w/5.5 in pads with great success. I only have the 6.5 in pads in white, grey, & blue, and since I have a rotary now I use the pc to apply wax and sealant, no problem. but i still think the right size pad, backing plate, counterweight combo will make the pc run smoother.
also make sure pads are centered, this will cut down on vibration too.:buffing:

 

[Dwayne]

counterweight to use with it. I got a PC 7424 at a heck of a price and I got the 5 in. backing plate but i got 6.5 inch pads at the recommendation of the website. I have seen somewhere where it says to use only the five inch PLATE with the five inch counterweight. I have also seen where it says to use a six inch counterweight for any PADS larger than 5 inches regardless of backing plate size. I will not be using the pads for correction and am aware that the 5.5 in pads are better for correction but at this time i am only using the PC for application/removal of product. So do i need to get the 6 in. counterweight or will i be fine with the factory installed counterweight?

Thanks

In my experience, I've only installed the 6 inch counterweight when using a 6 inch backing plate.

Take a look at the stock white pad that Porter Cable send with the polisher. The 5 inch backing plate and 6.5 inch pad combo most closely resembles this. So that you can use the factory installed counterweight.

 

[Jimmie]

I've never had any issues with using the same counter weight that came on the PC, and that is with a lot of different size/weight pads.