Goldacres Crop Cruiser G6 Operator's Manual page 138

Hydraulics
Unloader Solenoid
The unloader solenoid is located at the rear of the
sprayer on a hydraulic bank that contains CETOP 3
solenoids. The unloader solenoid can be identified
as the cartridge solenoid on the front face of the
manifold. It sits in a lower plane than the CETOP 3
solenoids.
When the boom hydraulics are de-energised this
solenoid allows fluid to return back to the hydraulic
tank. As soon as one of the hydraulic circuit
solenoids is activated the unloader solenoid will
also activate and prevent the fluid returning directly
back to the tank, therefore increasing the pressure
in the system to main relief pressure and allow
the hydraulic function to be performed. When the
system performs a function, the gauge on the left
hand end of the block should read 2500 PSI. If the
reading is lower, contact your local Goldacres dealer
for support.
Boom Raise & Lower Solenoids &
Cylinders
The raise and lower boom solenoids are separate
solenoids. The raise solenoid is a single acting CETOP
3 solenoid. The lower solenoid is a cartridge solenoid
that has a one way check in its spool.
When the lift solenoid is energised oil flows from
the pressure port in the CETOP 3 manifold through
the lower solenoids one way check out to the lift
cylinders. The oil flow can be controlled by the flow
control spool under the lift CETOP 3 solenoid.
Flow
control
spool
134 - Chapter 10 - Lubrication & Maintenance
CETOP 3 Solenoid
Unloader
solenoid
There is also a lift lockout solenoid in the circuit,
located on the accumulator manifold, at the rear of
the machine. This feature is used to eliminate boom
bounce when the wings are folded and boom rests
are in during transport.
This solenoid can be overridden in the event that
they become non operational. To do this, locate
the solenoid, there is a red knob on top of it. Wind
the knob all the way in. This will allow the flow of
hydraulic oil to the lift cylinders.
Red
knob
This is a temporary solution to allow the boom
to move up and down. It is recommended to
troubleshoot the system to find the fault. If the
problem cant be diagnosed, contact your dealer.
NOTE: When lowering the boom the unloader
solenoid will not be activated.
Boom Open/Close Solenoid &
Cylinders
The boom open/close solenoid is located in the
bank of solenoids at the rear of the sprayer. This
solenoid is a double acting solenoid.
To open and close the boom, two hydraulic phasing
cylinders are used.
Tilt Left/Right Solenoid
The tilt left and tilt right solenoid is located in the
bank of solenoids at the rear of the sprayer. This
solenoid is a double acting solenoid.
G4.7, G5, G6 Crop Cruiser Operator's Manual MY19 - REV 0