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6.3.6 - Pressure Monitoring
The DSX hopper tanks have 2 seed level sensors per tank fitted as standard.
6.4 - Pneumatic Seed Transport System
WARNING: Wear manufacturers recommended PPE when working with
dressed seed.
6.4.1 - Fan
The DSX uses a hydraulically driven fan to generate an airflow to convey the product from the
metering unit to the coulter. This fan is driven by the hydraulic supply from the tractor. The tractor
must also be equipped with a free flow return with a maximum back pressure of 3 Bar.
IMPORTANT: The free flow return must be connected prior to any other hydraulic
connection being made. (MAXIMUM 3 BAR OF BACK PRESSURE) Failure to follow
this procedure could cause damage to the motor and other hydraulic components
IMPORTANT: If airflow is too slow product flow will stagnate and remain in the
hoses. This in turn can cause blockages. If the airflow is too fast product will not be
distributed evenly or be blown into the seed trench
IMPORTANT: Fan speed, Product conveyance and delivery to all coulters must be
checked when sowing begins & at regular intervals when covering large areas
IMPORTANT: The fan motor oil supply MUST come from a "pressure & flow"
compensated tractor spool or set the spool to "Priority" if the tractor is capable of this
option. Motors driven from a non-priority spool will suffer from speed fluctuations.
IMPORTANT: The fan intake guard must be regularly cleaned and remain free of
debris. If the fan becomes obstructed by debris the air intake is restricted which can
lead to blockages occurring in the pipes due to a reduction of airflow. Deposits must
be regularly cleaned from the impeller to reduce imbalance risks. If not maintained
the bearing can become damaged by impeller imbalance and overloading
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CAUTION: Risk of burns on the fan drive system. Hydraulic components can
become hot during operation.
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