I was reading all of the responses to the OP regarding cleaning the rollers on the planer. In a few cases, a buildup of pitch was suggested as one potential problem. Almost all of the replies mentioned using things like Naptha, Lighter Fluid, Acetone, Mineral Spirits, and the like. My question is, what about something like a sawblade cleaner use to remove gum and pitch from saw blades. It is designed specifically for removing pitch and is completely safe and non-toxic. Would the residue left behind be a problem?
Maybe the next time I bring out my DeWalt 733 I'll try it since I have the same problem. That might be a while because my garage/shop is just a little too cool for me this time of year.
Wayne