VII. SERVICE AND MAINTENANCE SUSPENSION Air-Ride Adjustment Park the machine on level ground with outriggers completely unfolded in field operating posi1
tion. 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 ma6” chine forward 100 yards, cycling the steering back and forth, shifting machine weight
2
from
side to side. Stop on level ground and re-
FIG 7.59
measure, adjust as necessary. Repeat
proce-
dure 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 Fill valve FIG 7.60
damage. FIG 7.61
SERVICE AND MAINTENANCE CONTINUED
