If you wish to do maintenance tasks on your CH Racing CH 515 Basic then it will always be a great idea to possess a Workshop Manual for personal reference if you want to know simple methods to take out a specific component for example the Door and fit it again accordingly.
CH Racing CH 515 Basic Workshop Manuals are able to offer special diagnostic guides for the vehicle therefore if something is playing up it will help you determine what the problem is and the way to correct it. You will be able to assess if you can do this by yourself or in case the job is too big it is possible to make a booking for your CH 515 Basic in to a local repair garage.
CH Racing CH 515 Basic manual