Replies

1. 
   JohnWW | Jan 31, 2006 09:38pm | #1

   Start out by getting a copy of the owners manual and then set up the machine "by the book".  You can download a copy from Jet's website if the manual didn't come with your used machine.

   You will need to set and adjust the blade exposure, the chip breaker, the pressure bar, the table rollers, and the infeed and outfeed roller heights.  Also, be sure that you are setting the knives in the head with the gauge supplied by Jet for that machine.  The knives need to be sharp or you'll have to increase the roller pressure to feed against the dull blades.

   Also clean up the table and all of the rollers to make it easier for the rollers to move the stock through the machine.  It doesn't hurt to wax the table while you are at it.

   Once everything is clean and up to spec, you can then try to adjust the pressure of the infeed and out feed rollers.  You'll want moderate pressure on the infeed roller and as light a pressure as is practical on the outfeed rollers.

   The back side of the stock you are planing needs to be jointed smooth and flat before you feed it through the planer, again to make the stock feed easier.

   If you are planing a very soft wood, some marks may still appear, in which case the only fix would be to try to find a smooth outfeed roller for your machine. 

   It is possible that the marks are being left by the infeed roller.  This would occur if you are taking too light of a pass and not removing enough stock.  Simply taking a deeper cut would solve this problem.

   Wetting the wood and then sanding the boards flat isn't a good plan, the damaged wood fibers may show up when you apply a finish.

   John W.

    

1. 
   JWF01 | Jan 31, 2006 10:28pm | #2

   JohnWW, thanks for your reply.  I had the planer set to specs before I started making changes.  I used a dial indicator to set the blades to match (+/-.0005) each other after setting one blade with the Jet Jig.   Everything else was set off of the blades.  I was testing using pine, maple and walnut and had the same results.  The bed is smooth with wax on it but I do have the bed rollers down.  The blades have just been sharpened.  The in/out feed rollers were at spec and now have been loosened.   The track made by the front roller is about 10 times the width of the outfeed track. Thanks

   JWF01

1. 
   JohnWW | Jan 31, 2006 10:46pm | #3

   My answer covered all of the likely causes of the problem and you seem to have already checked those.  There is obviously something wrong, perhaps calling Jet would be the next step to take.

   John W.

1. 
   JWF01 | Feb 01, 2006 05:26pm | #5

   I sent an E-mail to Jet, haven't heard from that yet, I will call if I don't get anything from them.

   Thanks,

   JWF01

2. 
   hammer1 | Feb 01, 2006 12:31am | #4

   Is it possible that you are only taking a very light cut, 1/32" +- and the impressions from the serrated infeed roller aren't being cut off by the knives? It's hard to think of a reason why a smooth roller would make marks if it was clean and round. My Delta has a coated out feed roller but I'll get infeed roller marks left if I try to just skim the surface. I have to take off close to 1/16" with each pass to avoid having the "tracks" remain.

   Beat it to fit / Paint it to match

1. 
   JWF01 | Feb 01, 2006 05:33pm | #6

   The out feed roller isn't smooth, it has fine teeth, they are about one tenth of the in feed roller.  I have noticed the in feed roller marks, as you said, with a light cut.  I would love to find a smooth or coated roller for this planer.

   Thanks for you answer.

   JWF01