If you want to accomplish maintenance on your Dafier DFE 250 A then it is usually a good idea to own a Workshop Manual to keep just for reference in the event you want to know proven methods to strip off a specific part including Brake Pads and install it again perfectly.
Dafier DFE 250 A Workshop Manuals gives you targeted diagnostic guidelines on your vehicle therefore if something is broken it can help you identify what the situation is and how you can correct it. You can then assess if this can be achieved yourself or if ever the job is too big you could make a booking for your DFE 250 A right into a trusted car garage.
Dafier DFE 250 A manual