Michco sc8000, Руководство по обслуживанию

Страница: 153 / 225

Scrub System, Right Side 152 Service Manual – SC8000
Right Side Scrub Brush Motor
For the right side scrub brush motor to run:
• The
Driver Box
must receive a signal from the
Drive Pedal Sensor R1
that the drive pedal has been moved
from the neutral position.
• The main scrub brush motors must be running to supply oil to right side scrub motor.
• The
Driver Box
must provide a ground from pin
J2-2
to the
Side Sweep/Scrub
solenoid valve
S8
to open the
valve and allow oil to flow to the right side scrub motor.
Right Side Scrub Lift Cylinder
For the right side scrub lift cylinder to actuate the scrub brush:
• The
Scrub Cylinder Lock
solenoid valve
S6
must be open to allow oil to flow to and from the scrub lift
cylinder.
• The
Driver Box
must provide the appropriate ground signal from pin
J2-26
to the
Scrub Pressure
Proportional Down
valve
S5
, and the appropriate ground signal from pin
J2-24
to the
Scrub Pressure
Proportional Up
valve
S7
to extend the right side scrub lift cylinder and lower the right side scrub brush.
• Once the right side scrub brush is retracted upward after scrubbing, the
Side Scrub Lift
solenoid valve
S9
closes to shut off the oil flow to the right side scrub lift cylinder to ensure that the brush remains
retracted.
Right Side Scrub System Hydraulic Diagrams
Side Scrub Motor Off
When the
Right Side Scrub Motor
is off, the
Side Sweep/Scrub Valve
L8
is de-energized. The
Side Sweep/Scrub Valve L8
directs the oil to
the oil cooler and filter, bypassing the
Right Side Scrub Motor
.
Right Side
Scrub Motor
Side
Sweep/Scrub
Valve L8
From Cylindrical
Scrub Brush Motors
To Oil Cooler