I need to align my saw blade to be parallel to the mitre slots and am
not certain which are the front trunion bolts. My saw has two hex nuts
(marked #36 on the spare parts diagram) which are accessible on the
top of the cast iron table ... are these the trunion bolts or are they
for some other purpose (if so what?)
thanks in advance
look at the attached drawing. This will give you a good idea for almost all
of that series of Delta saw.
Parts 267 and 214 are the trunnion brackets. The bolts are 217 and 265. The
holes in the two trunnion brackets should be slightly enlarged. If you
loosen the four bolts just a turn or two, you should be able to tap the
brackets and the trunnion assembly (item 207) sideways
To measure the alignment, refer to a single tooth on your blade. Mark it
with a marker. Rotate it to the front of the saw and measure it to the mitre
slot. Rotate it to the back and do it again. Keep adjusting until that
measurement is the same.
Do not measure across the whole face of the blade, as the blade or the arbor
(202) may be out. IF the arbor is out, that is a whole different fix.
You only need to barely move the brackets one way or the other sideways to
change the alignment ALOT. Two important notes:
1) do not really wiggle everything around as the trunnion will fall out of
the brackets and then you will have to remount everything.
2) do not overtighten the bolts when you are done. The top will crack.
Shouldn't take you more then 30 minutes to align the blade to the slots.
In addition to advice already given, if your unit has flat washers
take the front screws out one at a time and replace the washers.
Reason is, the clearance holes are larger than usual to give maximum
adjustment, and the washers form into the hole, become conical and
have memory back to the old position even after you have adjusted to
the new position. Will often slide back to the old position. Also can
happen with washer face screws, I'd replace them if your adjustment is
significant. Keep in mind, you should only have to do this once if
your saw doesn't take a significant hit.
Standing at the operator side of the saw,
the front trunion bolts are located in the far
right and far left sides of the saw under the
You will find that they are damn near impossible to
see or reach with a wrench of any size.
Be prepared to stand on your head while making
The "back trunion" bolts are very easy to see
and reach from the operator side.
PS: You will need a VERY long 3/8" extension or two.
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