"David Anderson" wrote in message
...
I own an ancient Delta-Milwaukee "Toolmaker" surface grinder that is only
used about two hours a year, but it occasionally fills need that nothing
else will perform. It could be 50 years old. Both x, y, and z feeds are
manual. It is fitted with a Brown & Sharpe magnetic chuck. Lately, after
months of idleness, the surface finish after taking only a light
0.002-inch
pass is terrible. I have no operating manual or parts book; can't even
find
the serial number.. The brass nameplate says "Only use balanced wheels".
Any suggestions as to a remedy, and who can balance a grinding wheel?
Thanks, Dave Anderson



A couple thoughts: First, a 0.002 cut is pretty heavy. Try something on
the
order of 0.0002 to 0.0005. Second, dress the wheel with a diamond dresser
and take off a fairly substantial amount so as to give the wheel a new,
sharp,
clean surface all the way around. Finally, if the machine doesn't have a
coolant system, brush the work with some WD-40 or even wax the wheel.

Jerry