Bosch MS 4200 - Manual (Page 9)

Thorough Cleaning
3. Turn the blade holder clockwise, place vertically
and remove the circular blade.
4. Clean it carefully.
5. Make sure it locks correctly upon re-assembly:
blade holder is always horizontal.
A
W arning!
A blade falling out may cause injury!
1. Remove the stop plate.
□ Turn the turning knob beyond the 0 setting.
□ Pull out the stop plate.
2. Clean the appliance thoroughly.
3. Refit the plate.
□ Lightly press it inwards.
The turning knob must be in the position beyond
the 0 setting.
□ Turn the turning knob back.
The device is otherwise maintenance-free.