Hydraulics - Goldacres Crop Cruiser G6 Operator's Manual

Hydraulics

Crop Cruiser sprayers are fitted with three hydraulic
systems:
• The first is used to operate the steering and
boom cylinders.
• The second system is used to operate the spray
pump.
• The third powers the engine cooling fan.
These systems operate from a common hydraulic
reservoir. The reservoir has a sight tube mounted on
the side. The oil level must always be visible in top
third of the tube. The oil temperature will reach at
60-80 degrees Celsius in typical operation.
NOTE: See 'Recommended Lubricants' section at
beginning of this chapter for lubricant specifications.
Main Hydraulic Systems
The two hydraulic systems are used to provide liquid
for the steering, hydraulic cylinders and liquid pump.
The first hydraulic system is a priority system, driven
by a hydraulic pump attached directly to the engine.
This system has two priority levels. The highest
priority components on the system are the steering.
The second priority components are the boom
hydraulics as well as the fill pump. The second system
drives and maintains the spray pump speed.
Return Filter
The hydraulic filter is located in the tank in front of
the cabin. This filter should be replaced after the first
50 hours of use and then every 500 hours after that.
The return filter filters all of the return oil to the
reservoir. There is a red indicator located on the top
of the filter. If the indicator pops out then the filter
must be replaced because it is blocked and causing
back pressure through the system. This filter should
130 - Chapter 10 - Lubrication & Maintenance
be checked once the oil has reached operating
temperature as cold oil can cause a false reading on
the indicator.
Hydraulic Oil Cooler
The oil cooler is located on the rear of the chassis
above the rear differential. This cooler uses an
electric fan and a thermostatic switch to keep the oil
at the optimum temperature. The cooler will switch
on when the oil flowing through reaches 55°C.
Ensure that the fins on the cooler are kept clear of
debris.
A warning system has been fitted to alert the
operator when the hydraulic oil may be overheating.
When the temperature reaches 95°C, the low air
light will come on and the buzzer will sound. This
warning is shared with the low air warning circuit. It
is important to assess whether there is a problem
with low air or the hydraulic oil is overheating.
IMPORTANT: Do not use this machine in ambient
temperatures exceeding 40°C. Significant damage
may occur where a machine is operated continously
in very hot conditions.
G4.7, G5, G6 Crop Cruiser Operator's Manual MY19 - REV 0
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