I bought a used saw and it won't raise or lower, along the column
axis. I installed a new gear on the back end of the raising/lowering
rod.... the previous one was missing. I don't know how long it has
been since it has been raised or lowered and the column only had
minimal surface rust, so I'm assuming it is not 'locked' by rust,
though I have sprayed the suspect area (if applicable) with WD-40.
All nuts and bolts along and in the column key area are tight. I
don't see any type of locking mechanism, that I would need to release,
in order to raise or lower it. The parts manual only has a diagram
and the instruction maunal doesn't address the raising/lowering
function at all.
Initially thinking it might be a rust issue, I turned the handle, to
lower it, as far as it will go, then moderately tapped on the upper
arm support/column area with a 4 lb shop hammer and a 2X4, end-wise,
to no effect for loosening any rust, if stuck that way.
I'm at a loss as to correct my problem. I'm not eager to disassemble
the column. Any suggestions?
If the previous rack gear was missing was it then bottomed out? You
said it won't raise or lower so I assume it is not bottomed out. If
not bottomed then either someone locked it in at the mid point somehow
or it is siezed by rust I would think. I would think there should be a
You need vibration to break it out. Can you put a impact wrench on the
gear drive somehow in place of the handle? If not, lots of little taps
on the handle with a ball peen maybe.
I just looked the the manual, that is one serious unit. It looks like
the raise mechanism has a linkage that is under the table and I guess
runs to a rack in the back. I think anywhere along that chain you
could have a rust issue. I don't see a lock either but someone may
have added one along the chain of linkage somewhere.
After further inspection, I decided to tap it with the hammer & 2X4
again. That seemed to loosen it a tiny bit. I loosened all the bolts
and nuts in the column key area and attempted to crank the handle a
bit harder. I broke the new gear, made of plastic, as is the adjacent
gear attached to the screw, which goes up into the inside of the
column. I have a few machinist friends, so I may get one of them to
make a pair of metal gears, unless I can find an appropriate set "off
the shelf", somewhere.
I'm now suspecting the screw/some other part, inside the column, may
be stripped/defected.... something is jamming/locking/tightening/???
Despite this problem, $375, for the saw, may end up being a good
deal.... plus the $9, so for, for that (now broken) new gear.
I hope that it isn't stripped/rusted. I was out looking at the parts
diagram and the screw/raising nut is about $140 for the both of them.
Still not bad if you consider that you only paid $375 for it to begin
with. But I suspect that either way that you will have to replace
The screw won't turn at all? I don't suspect rust. The screw/nut was
more than likely lubed at the factory. My theory is that who ever had
it before probably bottom out the screw and tried to lift the arm up
to screw it back together and stripped it.
Just my $1.20 worth (Inflation is a bitch)
I disassembled the column and its base. The screw is fine. The part
the screw screws into (the raising nut) is fine, also.
The column base, which holds and tracks the column, is painted on its
inside. I would have thought this inside would be clean, bare metal,
machined smooth like the column. This base may be bent or warped,
somehow, or, more likely....
The column is bent or out-of-round. It's surface is smooth with no
rust, but I sanded it, anyway, with 600 and 1000 sand paper, then
greased it and it still won't slide back into the base easily.
Pounding on it, to get it back in, is of little effect. The top half
of the column seems ok.... it slides into the base easily, so I'm
thinking the base is not the problem. It's the lower part of the
column that is tight and jamming for some reason.
I'll call Delta to see if there's any warranty remaining. I'll see if
a friend can check the roundness of the column, also.
No scratches on any of the paint, anywhere. Seems this saw hasn't
been used much. Other costs to add to it's total, so for: I put 4
locking wheels on it.... $16? An electrical outlet, wall box and
breaker... $25? Two days labor, which includes going get it in
Mobile, AL ($100 fuel?).
I called Delta and we discussed my issue in detail. Apparently, the
Delta tech doesn't have a clue about their own product or why there is
nothing, at all, mentioned in the instruction manual, regarding the
raising and lowering of the column. After all the talk, I asked for
cost for replacement parts, in case I ended up needing new parts:
Column - $70, Column base - $345. It's a 2000 year model, no longer
Brought the base and column to machinist friend. He polished the
column. Went to insert it into the base, still tight. He put a wedge
in the pronged opening, to widen the hole. That's when we noticed the
screw adjustments for that very thing, relieving the grip on the
Nothing is wrong with the base or column. Two screws, in the column-
key area needed adjusting. I feel like an idiot, not seeing that in
the first place. The Delta tech should have known this, though, and
never mentioned anything about these adjusting screws. Friend's fee -
$00 and spent a nice time chatting in his shop. Will go to Grainger
to see if there is a gear to replace the broken one.
Good on ya.
Good on ya for finding a solution. Good on ya for having a friend who could
help. Another set of hands and eyes on the project often is what is needed
to find a solution.
Any you are right. You can not rely on phone assistance from many places.
Ultimately a lot of those places just want to sell you parts. Whether is
solves the problem or not. Or at least the most expensive solution ossible.,
Dismissing rust may be a little premature.
Personally, WD-40 has never been a very effective loosening it.
A good dose of Kroil from Kano Labs would be my first shot.
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