If you choose to execute maintenance for your Maico MD 250 then it will always be recommended to own a Workshop Manual to keep just for personal reference in the event that you want to know the right way to remove a particular part including Brake Discs and install it again the right way.
Maico MD 250 Workshop Manuals provides special diagnostic information on your car therefore if something is playing up it will help you ascertain what the situation is and how to correct it. Then you are able to decide if this can be achieved yourself or if the job is too big you could make a booking for your MD 250 in to a local car garage.
Maico MD 250 manual