If you want to conduct maintenance to your Linhai 90 PY then it will always be a good idea to have a Workshop Manual for a reference if perhaps you want to know how you can strip off a specific component like the Wheel and install it again safely.
Linhai 90 PY Workshop Manuals will give you detailed diagnostic information for the vehicle therefore if something is faulty it will help you discover what the issue is and easy methods to make it better. You will be able to determine if you can do this by yourself or if the job is too big you can still make a booking for your 90 PY into a decent repair garage.
Linhai 90 PY manual