If you want to accomplish maintenance tasks to your Veli VL150T then it is usually a good plan to have access to a Workshop Manual to keep just for a guide in the event that you want to know methods to remove a certain component like the Drive Shaft and fit it again effectively.
Veli VL150T Workshop Manuals offer you certain diagnostic wisdom on your car or truck so if something is playing up it will help you work out what the problem is and tips to fix it. After that you can determine if this can be achieved yourself or if ever the job is just too big you can make a booking for your VL150T right into a decent repair garage.
Veli VL150T manual