If you need to do repairs on your own Orion A29B50M then it is always a great idea to have access to a Workshop Manual to use as a reference just in case you want to know how to take off a specific component for instance the Brake Discs and install it again correctly.
Orion A29B50M Workshop Manuals will give you special diagnostic guides with regards to your vehicle so if something is wrong it helps you identify what the problem is and ways to correct it. After that you can decide if this can be done by yourself or in the event the job is simply too big you could book your A29B50M in to a decent mechanic.
Orion A29B50M manual