If you choose to execute maintenance for your PGO TR3 50 then it will always be recommended to have access to a Workshop Manual to use as personal reference if perhaps you need to know easy methods to take off a particular part like the Wheel Bearing and match it again accurately.
PGO TR3 50 Workshop Manuals can offer you unique diagnostic details on your vehicle therefore if something is wrong it can help you work out what the situation is and the best way to resolve it. Then you are able to evaluate if you can do this yourself or in case the job is just too big you can still make a reservation for your TR3 50 into a trusted friendly mechanic.
PGO TR3 50 manual