capacity: 1.0t - 2.0t electric walkie stacker: counterbalanced electric lift/lower controls in handle with pressure compensated valve for constant lowering in all conditions. state-of-the-art transistor controller require......capacity: 1.0t - 2.0t electric walkie stacker: counterbalanced electric lift/lower controls in handle with pressure compensated valve for constant lowering in all conditions. state-of-the-art transistor controller requires nonconductors to control separately excited drive motor. drive motor controller is fully programmable with service tool handset. travel speed and direction is controlled by ergonomically correct handle and operable with either hand. monitors load weight and automatically adjusts torsion bar suspension mechanism to provide optimum loading on drive tire to reduce steering effort and provide proper braking traction. double reduction 22 to 1 gear ratio with helical and spur-cut gears for quiet operation and smooth power transfer. drum brake is mounted on drive motor armature shaft to greatly multiply braking power through the double-reduction transmission. capacity: 1.0t - 1.5t electric walkie stacker: straddle electric lift/lower controls in handle with pressure compensated valve for constant lowering in all conditions. state-of-the-art transistor controller requires no conductors to control separately excited drive motor. drive motor controller is fully programmable with service tool handset. travel speed and direction is controlled by ergonomically correct handle and operable with either hand. monitors load weight and automatically adjusts torsion bar suspension mechanism to provide optimum loading on drive tire to reduce steering effort and provide proper braking traction. double reduction 22 to 1 gear ratio with helical and spur-cut gears for quiet operation and smooth power transfer. drum brake is mounted on drive motor armature shaft to greatly multiply braking power through the double-reduction transmission.