Thread: JET 310 thicknesser feed problem

Has the kickback assembly come loose or moved?

The kickback mechanism may be clogged up with dust and sticking down. The dust could either be in between the the individual levers or where they join onto the machine.

Sounds rather bemusing, you jet thicknesser should be capable of approx 4.5mm material removal in thicknessing mode.

As already suggested check the anti kickback finger assembly, there is no reason that the timber sould be pitching on entry, check there are no wood splinters or other debris clogging anything around to that area.

There are no infeed/outfeed rollers on the thicknessiing table itself so shouldn't be any obsruction there.
Check drive assembly to ensure feed rollers are rotating correctly.

Thanks everyone for prompting me to look much more carefully at the kickback assembly. On examination the fingers were quite lose, with ~2mm lateral play between them. I thought this might cause those that come into contact with timber entering to twist slightly and cause the jam, so I cut a washer (about 1mm thick) and fitted it over the kickback assembly rod at at one end to take up the play. Problem solved. And now that I think about it, I'd been having the jamming problem occasionally for longer than I'd remembered, but it just recently it got noticeably worse. I suspect it came from the factory with that lateral play in assembly.