IF this has not already been fixed. The freelift cylinder needs to be disassembled, the small black shuttle valve in the bottom of the ram needs to be replaced, it is held in by a small snap-ring. If this valve is not opening freely it will allow the fluid to build around the positively displaced ram and fool the hoist cylinders into thinking it is full extended. This valve allows the hydraulic fluid to escape from the topside of the piston as the cylinder extends.