get that keeper key out ...one way or another...
and then drive down to a true value store and either grab
one yourself or ask where they are.... lotsa drawers (match it up)
and get a replacement key or pin... they callem...
then figure out why??? the two pulleys are out of
alignment....because the belt wouldn't seek to travel over to
the other groove in the pulley , if they were perfectly aligned.
so you'll maybe need a straight edge across the two pulley's
or use a framing square to make sure nothing is out of square.
then look at the mounting bolts or
look for places to adjust
both the tension (generally 1/2 to 3/4 inch deflection is normal)
when you push down on the belt with your thumb and the base(s)
look for a slotted hole ...loosen it
slightly until you can tap it
with a rubber mallot into perfect alignment.
then adjust your rpm's to real slow and eye ball it.
keep checking and tightening until you can go faster and faster.
