If you have to perform repairs to your Daelim ET 300 then it is always recommended to own a Workshop Manual for reference just in case you need to know proven methods to take out a specific part such as the Wheel Bearing and match it again correctly.
Daelim ET 300 Workshop Manuals provide you with special diagnostic facts for your vehicle therefore if something is broken it can help you figure out what the issue is and tips to correct it. You can then determine if this can be done by yourself or in case the job is too big it is possible to make a booking for your ET 300 right into a decent mechanic.
Daelim ET 300 manual