Wing Tower 24.2.1. To be manufactured by Viking, American or HP Fairfield (no substitutes). 24.2.2. Hoist equipment shall be a wing post permanently attached to the right side of the loader’s front articulating frame and hydraulically controlled. 24.2.3. Valve controls shall be mounted in the cab and directly connected by a mechanical link. 24.2.4. Valve shall be mounted within the front of the machine ahead of the articulation point, resulting in protection from the elements as well as impact. 24.2.5. Valve and controls shall include four (4) double acting functions three (3) to operate the wing functions and one (1) to operate the reversing of the front plow. 24.2.6. The arrangement of the controls in the cab shall be as follows from left to right PLOW REVERSE, WING SLIDE, WING TOE and WING HEEL.