I am actually a machanic working on the tractor for a local farmer.She was box blading around poultry house when see lifted it up and would not go down.I work on suiunityeveral different tractors thru out the community but this is a problem I have not had to deal with yet.
I'm on the road but you're saying the draft control lever springs up or the lift lever. I constantly am bumping my draft lever, which will make the lift control lever useless. Make sure the draft lever is all the way up and try the lift lever.
Thanks for the info,I found the problem.The control valve on pump is stuck.I am in process of making parts list now to order.If you have a breakdown on the hydraulic system for a 165MF that you could send me,Iwould appreciate it.