If you wish to accomplish maintenance for your TGB 101S then it will always be a good plan to possess a Workshop Manual to use as personal reference in case that you want to know the best way to take off a certain part for instance the Drive Shaft and install it again in the correct way.
TGB 101S Workshop Manuals can offer you distinct diagnostic wisdom with regards to your car or truck so if something is wrong it helps you find out what the situation is and the best way to repair it. You can then analyse if this can be done by yourself or if ever the job is simply too big you are able to make a booking for your 101S in to a local repair garage.
TGB 101S manual