Hello. My Mazzer grinder doser Super Jolly (used

go to http://espressofixonline.com/grinders.html

download your manual and proceed according.God bless you

see the diagram attached: use the comon sense and VOM, God bless you

yes, you have to remove the beans inside because there is beans stuck between the burrs. after removing the beans, start doing the finest first before loading the hopper then after putting the beans test the grind as you go courser.

Most grinders, especially the larger professional models will eventually need to have the grinding wheels (set of 2) changed out. They do wear down. The grinder will struggle as the burrs on the wheel dull out. This increases the time it takes to grind coffee and puts a heavy electrical load. Burnt out switches, tripping breaker, overheating, and burnt coffee grounds on espresso size are all symptoms of a worn burr set.
It's common to find; stones, nails, jewelry, and small loose things found around coffee counters in the grinding wheels or burrs. Have a qualified operator remove all beans and hopper to check and brush out burr set. This should be done every day.
Another cause is very oily beans. Sometimes poorly roasted beans come out extremely oily which will gum up everything from the burrs, Moving parts, and electrical components. Disassembly of entire machines may be necessary.
ukeboy57

your doser mech is possibly gunked up with old grinds, first off try stripping it and cleaning it out, if that doesnt work you may need a new return spring but i think its far more likely to just need a good clean. this is from the mazzer mini but the doser design is pretty much the same so it should help you with disassembly
http://www.home-barista.com/grinders/mazzer-mini-component-photos-t3577.html

in the center of the star you have one screw and black knob, Release screw, adjust with black knob, than screw it back to prevent moving of knob

grinding setting is one simple operation but requires a bit patience:
1 turn on your grinder and continue setting to fine while burrs are spinning, you stop when you hear metal to metal touch sound(burrs maximally closed finest ginding) 2 from that point go back quarter of revolution and mark the spot where you stopped with marker to body of grinder and setting plate with one line 3 grind little amount of coffee only to fill one sector of dosser than test it at your machine(if it leaks too fast and with yellow color of cream you should go to more fine>><< if it does not leak from the filter holder or it leaks very slow you go to in opposite way. 4 you test grinding few times bit after each reset of plate grind little amount and take that in one other pot (that will provide to have pure new granulation) 5 after setting measure the grinded coffee that come out from doser it should be about 7 grams, better measurement you can get if you measure 10 doses in one place because you don't get never same amount from 6 sectors of doser.
PS: the pump pressure of coffee machine should be from 8 to 10 bar and steam pressure should be from 1.1 to 1.5 bar> depends on type of coffees you use.

Easiest way to set the grind on the super jolly is to remove the beans, turn towards fine until you can barely move the middle stem in the grind chamber, then turn towards course about 12-14 notches on the grinding adjuster(not numbers but notches between numbers). If you still cannot get a fine grind and it is not a brand new grinder replace burrs.

Check out this link for the Super Jolly manual:
http://www.wholelattelove.com/manuals/Mazzer/Super%20Jolly%20Product%20Manual.pdf