VII. SERVICE AND MAINTENANCE

SUSPENSION Air-Ride Adjustment

Park the machine on level ground with outriggers completely unfolded in field operating position. Adjust the air pressure in each air bag until the distance between the bottom of the steering plate (fig. 7.59, item 1) and the top of the bumper pad strike plate (fig. 7.59, item 2) is 6 inches. With a clear path on level ground, drive the machine forward 100 yards, cycling the steering back and forth, shifting machine weight from side to side. Stop on level ground and remeasure, adjust as necessary. Repeat procedure until desired measurement is achieved.

Visually check each air bag height often and adjust if necessary. Check each bag height with a tape measure daily and adjust if necessary.

The amount of pressure in the airbags will depend on the options on the machine, but should be around 42 psi in the front and 25 psi in the back. You want the pressure to be enough that the tie rods and steering cylinders are level (fig. 7.61). Over inflated and under inflated airbags will cause stress to the machine resulting in damage.