Posted by Jon on March 07, 1998 at 04:52:18:
In Reply to: Ford Jubilee Hydraulics posted by Linz Lord on March 05, 1998 at 09:26:50:
: My Jubilee will not lift at idle speed. At high
: rpm it lifts a box blade with no problem although
: it takes a long time before it begins to lift. I have
: rebuilt the piston pump. I have put new seals
: and o rings on the piston. I have disassembled
: the lift cylinder assembly and checked all valves
: for free movement. The oil is not turbulent when
: viewed through the access hole. Any suggestions?
When you had the lift cover off, you should see the back pressure valve on the right hand side of the rear axle center housing. It has a large acorn nut covering it, and is tightened into the lift cover housing with a rubber gasket. The gasket could be shot, or missing, or the valve could be worn out.