Hi, I don't know this model specifically but most modern mowers have a brake to ensure blade stops within 3-5 seconds. These release when motor turns on, but not unusual for the pads to come loose and jam up on older models. Bent motor spindle can also cause them to jam.
epark mowers
April 2011
I can answer this question...
Does Lawn mower Castelgarden ZGONC 1600W have a brake?