Technical Residue - Hardi NAVIGATOR VPZ Instruction Book

5 - Operation
Rinsing When MainTank Is Not Empty
Rinsing the pump, operating units, spray lines, etc. in case of stop in spraying (e.g. because of rain), before MainTank is empty.
Cleaning of the liquid system:
1. Turn the suction SmartValve towards
2. Close the agitation valve (no agitation).
3. To prevent diluting the tank content, close the rinsing hose for the CycloneFilter.
4. Engage the pump. Set the pump speed to approximately 300 RPM and increase the spraying pressure to 6 bar. Spray
the water from the RinseTank into the field, until all nozzle tubes and nozzles have been flushed with clean water.
5. Turn Off the pump.
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ATTENTION! It is advisable to increase the forward speed (double, if possible) and reduce the spraying pressure to 1.5
bar, when spraying diluted remaining liquid in the field just sprayed.
Cleaning the Sprayer on the Outside
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ATTENTION! External cleaning using the spray gun is only possible with water from the RinseTank, which have been
directed through the MainTank. To avoid cleaning the sprayer on the outside using concentrated chemical mix from
the MainTank, do a complete MainTank cleaning before attempting to use the spray gun!
Refer to "Outside Cleaning - Use of External Cleaning Device (i-version) (optional)" on page 131 for detailed procedure.
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ATTENTION! If the sprayer is cleaned with a high pressure washer, lubrication of the entire machine is recommended.

Technical Residue

An amount of spray liquid will inevitably remain in the system. It cannot be sprayed properly on the crop, as the pump takes
in air, when the tank is just about empty.
This technical residue is defined as the remaining amount of liquid in the system, when the first clear pressure drop appears
on the pressure gauge.
The residual dilutable volume is approx. 41 litres. See the section "Technical Specifications" for more details.
The residues in the tank should be diluted immediately in a ratio of 1:10 with clean water. Afterwards it should be sprayed
on the crop just sprayed with increased driving speed.
In addition, also pump, linkage and armature can be separately rinsed with water from the rinsing tank. However, it must be
ensured that the liquid in the spray lines are in unchanged concentration. Therefore there should be an untreated field area
available to spray this liquid out.
Follow national regulations when disposing of chemical residues.
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. (Keep the pressure SmartValve in -position).