Morris Quantum - Opener Hydraulics

Operation
5-42 January 2019
Opener Hydraulics
The QUANTUM uses an active hydraulic control system.
This means the tractor’s hydraulic circuit to the QUANTUM openers are permanently engaged into the working
position through manifold block (S64940) which controls the Lift-Lower and packing pressure functions via a controller
and an in cab display.
The controller and display provides the user the ability to adjust the opener downforce packing pressure on the go
from inside the cab while applying product.
The following is the oil ow for both operating types and can be used for problem diagnosis.
To lower
• Pressing Opener “DOWN” button on the controller will lower the openers all the way down and lock them into
working position by shifting solenoid valve “S1” which actuates pilot directional valve “PD”; “PD” valve in the diagram
will be at its default position of ow straight through.
To raise
• Pressing Opener “UP” button on the controller will lift the openers fully up by shifting solenoid valve “S1” which
actuates pilot directional valve “PD”; “PD” valve in the diagram will be shifted to cross the ow over (arrows crossed
symbol).
Pressure Setting:
• Pressure can be adjusted on the go from the tractor cab using the display.
• Pressing the Pressure “INC” button on the display will increase the pressure by shifting proportional reducing/
relieving valve S2 in the block; each press of the arrow will lift the pressure value by approximately 25 psi (172
kPa).
• Pressing the Pressure “DEC” button on the display will decrease the pressure by shifting proportional reducing/
relieving valve S2 in the block; each press of the arrow will drop the pressure value by approximately 25 psi (172
kPa).
• The system will remember the last pressure setting that it operated at and revert to that at next start up.
Trouble Shooting
The opener valve (S1) has two states; ON (opener UP) and OFF (opener DOWN). When the opener valve is on/UP,
the output is set to 3000mA (default value). When the opener is off/DOWN, the output is set to 0mA. These signals
can be measure with a multi-meter directly at the valve connection. Just pull the plug out of the coil and measure the
amperage across the two pins of the wire harness connector. Pin 1 of the S1 wire harness connector is connected
to the controller output and pin 2 is connected to ground. Check these values without any hydraulic power.
The pressure reducing valve (S2) output is dependent on the state of the opener valve. If the opener is on/UP, the
output to the S2 valve is 1050mA, or roughly 87.5% of the max value of that valve (approximately 1750psi). When
the opener is off/DOWN, the output to the S2 valve is whatever value has been set by the user via the display. As it
is now, this value can be anywhere from 350mA to 1200mA.
S1 and S2 are both current-controlled PWM outputs. Make sure to measure amperage and not voltage.
Comm Icon: Cable is not connected correctly, Cable is not terminated correctly, incorrect rmware loaded / Board
Revision.