What does cable pull distance (50 mm / 60 mm) mean?
The pull distance shows how much the kit shortens the cable in a single command: 60 mm for the LFT20, 50 mm for the LFT54. This distance is set to move the Lift-O-Matic lever through the angle that takes it to the transport position. During installation the cable length must be adjusted so that the lever moves within this range and does not enter the continuous pumping zone.
The kit pulls the cable linearly; the lever converts that pull into an angular movement. So 60 mm or 50 mm does not directly mean "how many degrees"; the corresponding angle changes with the joint geometry of the lever.
The practical meaning of these values:
- Cable length adjustment is critical. If you attach the cable looser than required, part of the pull is spent taking up the slack and the lever does not move fully. If you attach it tighter than required, the lever is pushed into the continuous pumping zone from the very first movement.
- The limited distance is deliberate. The aim is to move the lever within a certain range, not to force the mechanism to its end. In the continuous pumping zone the relief valve opens constantly, the oil heats up and the spring loses its tension.
During installation the end of the existing Lift-O-Matic cable outside the tractor is detached and connected to the kit's cable entry socket; the original connection on the tractor side is never removed. After adjusting the length, try it by hand a few times without running the motor and confirm at which positions the lever stops.
The full topic: Converting a tractor hydraulic lever to electronic control