Hi i am new to this forum so hope this is in the right place, sorry if its not, I am having a problem with a bobcat i am helping someone do so work on, as far as i no its a 743. when you first get in the machine everything works fine, all hydraulics and traction. after you do a little work with it and turn it off and on again the hydraulics seem to become locked so that you cannot move the bucket up or down or crowed it. i can still drive it about so this side of things is not affected. the machine needs to be left for a while then when you come to start it again everything seems to be working fine, any ideas what it would be? Many thanks