I have an old Delta Contractor's Saw, Model 34-444. This saw does not have
the 45 and 90 degree angle stops that are adjustable with an Allen wrench
through the table, but a single stop at 90 degrees that must be adjusted
by someone sitting on the floor with a long thin arm, considerable manual
dexterity and lots of patience.
I adjust the angle stop rarely because it doesn't need it, but when I do,
I take great care to tighten the jam nut well because it is such a pain
to do it again.
I noticed that one cut I made today did not make a 90 degree angle
as I wanted, though I hadn't (intentionally) changed the blade angle
recently. When I went to adjust the angle, the handwheel just spun and
did not change the blade angle.
I dropped the motor and vacuumed out the sawdust from inside the housing
and could not see or feel anything wrong. I fiddled around trying to shake
or rotate everything I could reach. I did not detect any looseness in any
connections. When I tried the handwheel again, it worked.
This bothers me. I don't know what had gone wrong. I don't know what
"fixed" it. My only guess is that it had something to do with the fact that
I had been cutting MDF and somehow that disengaged the handwheel which then
re-engaged when I vacuumed out the saw. This is a real stretch. I have had
the saw for almost 15 years. Periodically I saw MDF with it. I have never
had a problem.
I will be more attentive to the blade angle in the future. In the meantime
can any one offer me advice as to what went wrong?
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