If you wish to carry out maintenance on your own Hercules K 125 S then it will always be a good plan to possess a Workshop Manual to use as personal reference if perhaps you want to know simple methods to strip off a certain part like the Brake Discs and match it again accurately.
Hercules K 125 S Workshop Manuals can offer you detailed diagnostic facts for your car or truck so if something is playing up it helps you understand what the situation is and tips on how to correct it. After that you can determine if this can be achieved by yourself or if the job is simply too big it is possible to make a reservation for your K 125 S in with a nearby garage.
Hercules K 125 S manual