Ok guys here are a couple of suggestions:
Cleaning the rollers, instead of alcohol, use a stronger solvent such as lacquer thinner. Not only will this loosen more of the gunk, but it will ever so slightly soften the rubber, making the rollers work better.
Clean and wax the main table. Make sure it is clear of all pitch and build-up and then give it a good coat of wax. Remember those rollers are putting a lot of force on the main table, so any material that is stuck on there could hang the stock
We tested a machine that was not feeding an 8' 2 x 10 through. After cleaning the rollers and waxing the main table, it took 45 lbs of force to stop the stock from feeding.
Replacement knives are also available directly from RIDGID by calling 1-800-4RIDGID or going to
www.ridgidparts.com.
Lee: drop me an email about the knives for your planer
Jake