Download Manual - Silvan Australia

Operation
The agitator should be on during normal operation.
The amount of agitation is determined by the
speed at which the pump is driven as any solution
that is not required at the spray boom will be
recirculated through the agitator circuit.
The extent of agitation should be observed through
the tank top opening to ensure it is adequate but
frothing is not occurring. As the tank nears empty it
may be necessary to close the agitator to prevent
excessive frothing of the remaining solution.
Stopping the Sprayer Pump (Hydraulic Model)
The standard spool valves of tractor hydraulic
systems can cause potentially damaging high peak
pressures when being closed because of the
abrupt shut-off of oil flow in both the supply and
return lines. When shutting the sprayer down,
move the tractor hydraulic selector to the “Float”
position to allow the motor and pump to come to a
gradual stop.
Draining the Tank
Before draining the main tank ensure that any
chemical residue will not be discharged into, or
near, a prohibited area or an environmentally
sensitive location. If necessary drain chemical
residue into containers for disposal.
To drain the tank, turn the red handle of the drain
valve to the “Drain” position. After draining close
the valve by turning the handle to the “Pump”
position.
The drain valve is located under the LH rear of the
sprayer if fitted with a front mounted boom, or
under the RH front if fitted with a rear boom.
Flushing the System
The flushing tank can be used to provide the water
supply for purging the system. At the end of each
day switch the suction valve to “Flush Tank’ and
run clean water through the pump and the lines to
purge them of any chemicals.
Rinse the main tank out thoroughly to remove all
powdered material. Never leave chemicals in the
tank that may settle to the bottom, harden and
break into lumps as this may block the suction
filter. The interior of the tank can be washed by
operating the “Tank Rinse” valve on the pressure
control panel. This directs pressurised clean water
to rotating rinse jet in the top of the tank.
When flushing the tank with water leave the drain
valve open until uncontaminated water runs
through the valve.
On some booms supplied for the RowKING the
flushing of boom lines and spraybars can be
assisted by opening the taps at either end of each
spraybar. After closing the taps flush the boom
again to ensure all nozzles are cleared and
spraying correctly.
Road Travel
When towing the sprayer on a public road always
ensure that it is equipped with all the necessary
lights and signs to comply with local regulations.
Travel at slow speed and only with the main tank
empty. When all tanks are full the weight of the
sprayer could overload the braking capability of the
tractor and result in an accident.
Ensure that the spray boom is correctly folded and
secured with transport locks or safety chains.
The master switch of the Silvamatic or Farmscan
controller should be switched off to avoid
inadvertent operation of the boom nozzles.
If electric over hydraulic controls are fitted make
sure that the master switch is off to prevent
accidental unfolding or lowering.
Check that the Silmix hopper is in the raised
position with the safety lock secured and that the
probe is securely installed in its holder.
Check that the sprayer access steps are raised
and secured with the latch.
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