Not sure which of the above to do Im so frustrated. Must have spent 3 hours
adjusting my delta 6 inch jointer to a fair-thee-well. Infeed/outfeed
coplaner, knives barely kiss a metal ruler extended over the outfeed table. I'm
confident my feeding technique is good and the damn thing still doesn't want to
cut correctly. Every time a 14 inch long board is passed over the knives the
board loses about 1/64 of an inch on the leading end compared to the trailing
end. WTF? And the dad-gummed thing seems to be pretty underpowered to me. I
was pushing a 3/4 inch wide ash board through at about, well I don't know
exactly but it was pretty darn slow and the knives would almost stop at times
and I would have to stop feeding.. I have an old 4 inch with a direct drive
motor that does a better job than this POS. Does it seem like maybe I have a
motor problem or are these things just underpowered. It's a standard open base
Delta and right now I'm ready to junk it Big Ol Razzberry to Delta Mike in
Arkansas in rant mode
Sounds like you need to tighten the belt. But before you do, see if it's
glazed over from slipping so much. If so, replace it with a new one or get
yourself a link belt. It's possible the motor is bad - did you ever see any
smoke come out of it? Planing off 1/64" (.015") should not be any problem at
It wouldn't happen to be a model 37-070, would it?
I've got that jointer and went through the same thing you did. I ended
up coming to the conclusion that the jointer was simply a pile of crap.
Still, I can't come up with any logical reason why it is tapering the
boards unless the cutterhead is shifting when the torque of the motor is
applied or the tables are flexing. I don't know - I'm stumped too.
Thanks for the suggestions. I haven't called Delta yet and Rick the link you
provided is not my model. I'm going to try again tonight having calmed down
and had a good nights sleep. I did go back and check to see if the board edge
I jointed was concave and it was. That was the problem that got me trying to
tune it to begin with. So it not only tapers but is concave also. I did read
a lot of info online before attempting adjustment. It's got to be me. The
machine is too simple not to work correctly if properly set up. I either don't
appreciate the degree to which I need to adjust the various components or my
technique sucks. Going to check the mtor and belt tonight also. Regards,
Mike in Arkansas (in less than full rant mode after a nights sleep.)
Okay, three hours after that last post and some progress finally. Because I
purchased the jointer from a fellow who worked part time at Woodcraft, I guess
I just assumed it would be set up close to correct. I was wrong. Way wrong.
Went back further in the setup instructions for replacing the knives and now
it works much better. The outfeed table was set WAY to low and the clearance
between the outfeed table top and the knife holder was only .01 inches. It
should have been .06. Adjusted. Because the knife holder was so high in
respect to the outfeed table the knives BARELY cleared the knife holder bars.
I believe it had such little projection that the holder bars may have been
rubbing on the wood as it went through. Then, one of the holder bars was in
UPSIDE DOWN, leaving even less (or no) clearance.. Anyway after making the
above changes and doing a better job of adjusting the knife height it now cuts
with much less taper with no concave edgeing. Also, cuts with more power.
Although I tighted the belt I don't believe it was slipping and the above
changes were the cause of the low power issue. Tomorrow PERFECTION. Mike in
Arkansas (done ranting and please forgive me Delta.)
It was and it is. Oddly, the Delta Web Site recommends no more than .015
clearance between the outfeed table and the cutter head assembly for a jointer
with gib type table adjusters. My manual clearly calls for .06 inches. No
wonder people find their jointers to be difficult and tempermental with all the
various contridictory information. In any event I am one happy camper right
now. I used feeler gauges every inch along a straight edge and it seems my
outfeed table is not particularly flat. It dives downward at the extreme end
of the outfeed table on each edge from the center out so I will attempt to keep
my work more or less in the center and try to keep boards in contact with the
tables cutter end. Now I feel better about starting that craftsman bed. Mike
in Arkansas (deeply relaxed and calm)
No, I never contacted Delta. After all the time I spent fiddling with
that jointer and still having it be messed up, I'd just get pissed off
if I had to take it apart again and make more adjustments.
If it was something other than Delta's bottom of the line jointer, I'd
be more willing to take the time to set it up. As it is, I just chalk
it up to "you get what you pay for". I've got three Knight planes, so I
generally flatten one face with the jointer, handplane one edge square
(or two at the same time for edge joining), powerplane to thickness,
crosscut, and rip.
Also my handplanes are never going to take a chunk of flesh out of the
end of my thumb when I do something stupid - and those moments are more
common than I like to think about. Just another reason for me to
consider that jointer the bastard stepchild of my workshop.
Never Enough Money wrote:
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