SCM planer thicknesser, timber not feeding

[JMHjoiner]

Hi all, looking for some help. Over the past few weeks my planer thicknesser has become increasingly more difficult to pass stock through. Wider stock is almost impossible without physically pushing and then pulling it through which creates a terrible finish. Yesterday I was trying to take just 1.5mm off a very narrow 10mm length of sapele and again it got stuck and I had to pull it through. The rollers look clean enough and the bed has been waxed. Could it be the feed roller drive belt losing tension? If so, how does one adjust it? Model 2009 SCM Technomax fs35 elite 4kw motor 3 phase. Many thanks in advance. James

 

[Jacob]

I have had similar prob in the past - caused by dust and shavings getting under the bearing housings of the feed rollers and stopping them from lowering right down onto the workpiece.
Examine with a torch and a mirror - lift the roller by placing a block on the bed and cramping it up a touch.