If you want to conduct repairs on your own Husqvarna TC510 then it is usually recommended to have a Workshop Manual for personal reference in the event you need to know methods to take out a particular component such as the Wheel and fit it again safely.
Husqvarna TC510 Workshop Manuals can offer you certain diagnostic facts with regards to your car therefore if something is playing up it will help you determine what the situation is and tips on how to correct it. You can then decide if this can be done on your own or that the job is too big you can actually book your TC510 in to a trusted mechanic.
Husqvarna TC510 manual