I ran some beans through my Isomac Macinacafe grinder, but nothing
came out... I just bought some new beans, they feel a little oily so I
figure that could be the cause. The grind setting has been on the same
number for months, and it has been working fine until now. Now it's
just full of coffe inside, how the heck do I get it out? The machine
has three small screws on top, just under grind adjustment wheel (kind
of hard to reach), and a hex nut and washer above the burrs (tried
removing that to no avail).

Any ideas, please?