IV.
OPERATING SYSTEMS
4.20
C. HYDRAULIC SYSTEM
HYDRAULIC PUMPS–
The hydraulic pump (fig. 4.20-1) circulates
the hydraulic oil throughout the necessary systems and back through a
cooler before returning it to the reservoir.
If the level in the reservoir drops too low to safely operate the machine
you must shut down the engine immediately to prevent damage to the hy-
draulic system.
POWER STEERING SYSTEM–
The power steering is a dedicated
circuit steering system with full time control, self centering/ double action
steering cylinders.
SOLUTION PUMP–
The solution pump (fig.04.20-4) is a diaphragm
pump semi-hydraulically controlled with the pulse width modulated control
valve (fig. 4.20-3). The valve is controlled
by the Raven console per the calibration
settings entered by the operator.
The solution pump is also used to
distribute the water or cleaning solution
from the rinse tank through the rinse systems.
FIG. 4.20-2
FIG. 4.20-4
FIG. 4.20-1
GEAR PUMP–
The gear pump aids in the circulation of hydraulic oil
through the filtration and cooling systems.
FIG. 4.20-5
FIG. 4.20-4
PWM valve (behind mounting plate)
relief valve
agitation valve