MCT 135C / JCB 300T running fine all of a sudden the bucket slowly came down lost all hydraulics now it’s stuck in my driveway. How can I tell if the main pump is shot, I have the manual but it’s kinda gibberish. I know they’re pump always had a whine to it and you kinda had to rev it up to get any kind of work out it before. Now, no whine, no nothing ! Mechanics, especially mobile, in this neck of the woods are far and few between.