dismantling

Hello all, First off, apologies if this question is the very basics and has been answered several times. As a novice to DIY, I just wanted to double check that my planned approach to dismantling a light fixture is the safest/correct approach -- I just can't seem to find anything clear on...

I am trying to change a drive belt on my Panasonic SD-2500 breadmaker but just cannot get the appliance apart. I have removed every screw that I can see but other than making the inner, steel chamber loser there is no sign that I can remove the outer case. Does anyone know the secret step?