Goldacres Super Cruiser G8, Руководство оператора, Страница: 151 / 210

Chapter 10 - Lubrication & Maintenance - 147 G8 Super Cruiser Operator’s Manual MY19 - REV 0
Hydraulics - 36-42m
Closed Centre - Load Sense
System
The unloader solenoid is located on the spool valve
block. The load sense (LS) hose connects the spool
valve block to the load sense priority block.
The 63 cc single hydraulic pump is a variable
displacement type which is attached directly on the
side of the transmission to the transmission PTO.
The pump is used to supply fluid for the steering and
most hydraulic functions excluding the brakes, engine
cooling fan and spray pump.
After fluid leaves the hydraulic pump it travels
through a priority valve. This valve prioritises flow to
the steering orbital. When the steering system has
received sufficient flow, the priority valve begins to
enable fluid to travel to the rear hydraulic circuit that
controls boom functions. This flow is determined by
the load sense line from the steering orbital.
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.
There is 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 it
becomes non operational. To do this, locate the 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.
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.
Four hydraulic cylinders are used to open and close
42 m booms, while two are used on 36 m booms.
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.
Bi-fold Circuit
The Bi-fold solenoid is located in the bank of
solenoids at the rear of the sprayer. This solenoid is a
double acting solenoid.
The Bi-fold circuit has 2 double pilot operated check
valves (mounted to the bi-fold cylinders) in the
system to maintain the pressure in the boom lines
when it is folded out in the working position.
Flow
control
spool
Red
knob
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