|Forum topic by jasoncarpentry||posted 01-01-2013 08:50 PM||2028 views||1 time favorited||20 replies|
01-01-2013 08:50 PM
Those of you who have the Dewalt 735 planer might have experienced this problem. The 24 bolts which fasten the knives to the cutterhead (eight per knife) are made of cheap steel (carbon steel?). They tend to “freeze,” even after just hand-tightening. And more often than not, my efforts to remove them have resulted in a rounding off of the hex inset; I then have to use a bolt extractor to take them out, which ruins the head.
The good news is that stainless steel bolts have a deeper hex, and, being harder material, are much less likely to round off. So, I’ve ordered 24 replacement SS bolts; until then, I have a mixture of CS & SS bolts. Now here comes the hard lesson: I added lock washers to all of the bolts to make them easier to remove, and then made a few passes on a hard-to-make laminate. The result? Dark, slightly deep gouges along the length of the workpiece.
Being the genius that I am, I immediately stopped planing, opened up the planer, and removed all of the lock washers. The heads of the CS bolts showed a slight degree of flattening, which means that there’s no “forgiveness” in the cutterhead clearance. The lock washers had simply raised the boltheads up too high to avoid contact w/ the workpiece.
So, if you’re tempted to add lock washers (or just plain flat washers) to the bolts, DON’T DO IT!! Has anybody else had this problem w/ the DW735?
-- Jim in Tennessee