3 - Description
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WARNING! The AutoWash functions are meant as an aid for the user to get a complete cleaning of the sprayer. HARDI
cannot undertake any responsibility that possible operational faults from the operator result in a poor cleaned
sprayer.
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ATTENTION! For the use of AutoWash functions, please refer to “Start AutoWash” on page 100.
BoomFlush
BoomFlush rinses the spray lines. Used when there is an interruption in the spray job, e.g. rain, when the MainTank still
contains spray chemical.
BoomFlush reduces sedimentation in boom tubes and reduces harm from dripping water when dismounting the non-drip
valve or when opening the PrimeFlow valves at the nozzles.
• Uses approximately 100 litres from the RinseTank.
• Rinse water is sprayed out at nominal driving speed to avoid overdosing.
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NOTE! When doing a BoomFlush the MainTank contents increases with approximately 40 litres. This is solely spray-
liquid that are primed back to the MainTank before clean rinse water is directed to the nozzles. Therefore, the spray
chemical not thinned with water from the RinseTank.
FastFlush
This is a quick, basic wash. Used for planned stop where the same pesticide is sprayed next day in the same crop. The
MainTank must be empty before attempting to do a FastFlush.
FastFlush both flushes MainTank, the fluid system and the boom. FastFlush reduces sedimentation inside the entire sprayer;
however, the residual concentration is still relatively high.
• Uses approximately 75 litres from the RinseTank.
• Spray out rinse water at nominal driving speed to avoid overdosing.
MultiRinse
This is an extended wash. Used if there is a slight change in pesticide or crop or the next spraying task is with incompatible
pesticide/crop combination.
MultiRinse performs the same sequence of steps as FastFlush, but performs it several times. Hence, greatly reduce the spray
chemical concentration.
The MainTank must be empty before attempting to do a MultiRinse.
MultiRinse:
• Does the same steps as a FastFlush, but repeats between 3 and 7 times depending on the sprayers RinseTank size.
• Uses approximately 450 litres from the RinseTank.
• Makes driving and washing more comfortable. Recommended speed is the half of normal spraying speed, whereby
dose rate (litres/ha) is increased.
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NOTE! Spraying time is unchanged as flow rate and spray pressure is the same as for normal spraying.
MultiRinse, however is only based on cleaning with water, which may not be sufficient. Always refer to chemical
manufacturer’s instruction for information of possible necessary use of a cleaning detergent like e.g. AllClearExtra.
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