CGOLDENWALL Upright Serie Manual Del Usuario página 17

 Instructions of Air Overload Protector
When blades are jammed in grinding bin, it will happen that air
overload protector pop up and the machine automatically cut off the
power supply.
If this situation happens, turn off the power and check the grinding
bin. You just need clean the bottom blades and press the
overload protector button again, then the grinder could work
well.
* Upright type grinder: *Swing type grinder:
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