If you wish to perform repairs on your CPI Oliver 50 then it is usually recommended to have a Workshop Manual for personal reference in case you want to know simple methods to take out a certain part for instance the Dashboard and fit it again in the correct way.
CPI Oliver 50 Workshop Manuals will give you detailed diagnostic info with regards to your car or truck therefore if something is not working it will help you discover what the issue is and methods to fix it. You can then evaluate if you can do this yourself or if the job is just too big you are able to make a booking for your Oliver 50 into a nearby repair garage.
CPI Oliver 50 manual