I have a B2550 snow blower, the economy version. No hydraulics. The raise and lower of the front mount snow blower is linkage from the front to the rear pto. What I do not understand is how to hook up this to the pto lift arms. The manual does not have any picture just says hook it up. No help. Does anyone have one of these and can explain or better yet a picture of theirs hooked up? Just need info on the rear of the tractor. Thanks.