Implement jack lock-out device

A detachable jack assembly for attaching to a hitch of a work implement or vehicle, comprising:

• a leg having a first member movably connected to a foot member;
• a crank assembly disposed on the first member and having a rotatable arm, wherein the crank assembly is operably connected to the first member to move the foot member relative to the first member when the rotatable arm is rotated;
• an attachment member disposed on the first member and configured to attach to a hitch of a work implement or vehicle, the attachment member having a pin hole formed therein;
• a pin configured to fit in the pin hole;
• and
• a lock-out assembly disposed on the attachment member, comprising a bar member biased to a first position and movable to a second position, wherein the rotation of the rotatable arm is limited by the bar member when the bar member is in the first position, and the rotatable arm moves freely when the bar member is in the second position, wherein, when the pin is disposed in the pin hole, and the bar member is in the second position, the pin maintains the bar member in the second position.