I have a 1720 ford diesel tractor with hydraulic lift problems ( it is a 3 point hitch lift on back of tractor ) . When I first crank the engine and raise lift handle, the lift will raise very slowly in fast jerking motions. It will lift this way for 10 to 15 minutes . Then it will quit lifting period but if I lift the handle and let it set for 4 to 6 minutes it will began to creep up in fast jerking motions. After I drop the lift it will not lift for another 4 to 6 minutes. We were trying to used a bush hog at the time
We have checked : The hydraulic Piston under the seat and the seals on the piston . It is full of hydraulic fluid . We can't see or feel any hot places on the hydraulic parts .
We have checked : The hydraulic Piston under the seat and the seals on the piston . It is full of hydraulic fluid . We can't see or feel any hot places on the hydraulic parts .