Folks, I am the maintenance manager (department really) for a small factory making parts from MDF. We cut a lot of shelves and other parts on and older Selco Panel saw, a WN200 from 1994. While it has a side aligner consisting of two rollers and air cylinders positioned on either side of the blade path, they are not effective at pushing the boards into place and the operator is making final adjustments with his hands. This is pretty dangerous as the pressure beam is moving fast and sometimes catches the edge of the stack and then slams down.

I have dome some cleaning and adjusting of the units, including the air motor that applies force to the roller assembly. While all appears to be functional, I'm still not getting enough force. The air motor seems to release prematurely, perhaps a bad braking system? Bad programming? The rollers are also not always synchronized, sometimes one will be down but not the other. I don't have an operator manual to reference (I'd buy a copy if anyone has one), so it's a little difficult to dive into trouble shooting. If anyone has experience with these units or suggestions on experts for these ole saws, I'd appreciate hearing.