I need some technical advice from you.I have a biax 7/el scraper.And the motor has burned out a few days ago.I have attached some photos to scraper which I have.I just need to know how to take out the motor.Or how to parts to scraper?There seems a threaded housing nut structure.But its impossible to take off.I could not find any document or videos about it.If you would expla?n how can I do that step by step I will be grateful.