If you wish to carry out maintenance to your Piaggio NRG Power DT then it is always recommended to own a Workshop Manual to keep just for personal reference if you need to know how to remove a particular component for example Brake Pads and fit it again in the correct way.
Piaggio NRG Power DT Workshop Manuals will give particular diagnostic guidelines with regards to your automobile so if something is broken it helps you identify what the situation is and how you can make it better. After that you can decide if this can be achieved yourself or if the job is simply too big you could make a booking for your NRG Power DT in with a nearby mechanic.
Piaggio NRG Power DT manual