Technical Residue; Using The Drain Valve - Hardi NAVIGATOR DELTA FORCE Instruction Book

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5 - Operation
Rinsing when main tank is not empty
Rinsing the pump, operating units, spray lines, etc. in case of stop in spraying (e.g. because of rain), before main tank is empty.
Cleaning of the liquid system:
1. Turn suction valve towards
2. Close AgitationValve (no agitation).
3. Engage the pump. Set the pump speed to approximately 300 rpm and increase the spraying pressure to 6 bar. Spray
the water from the rinsing tank into the field, until all nozzle tubes and nozzles have been flushed with clean water.
4. Disengage the pump.
μ
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
1. Turn suction valve towards
2. When another 1/3 of the contents in the rinsing tank is used, turn the suction valve towards
pressure to 8 - 10 bar.
3. Turn pressure Agitation valve towards
side.
4. Disengage pump again.
μ
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.

Using the Drain Valve

The drain valve is operated from the platform just beside the main tank
lid.
1. Pull the string to open the drain valve.
2. The valve is spring-loaded, but can be kept open by pulling the
string upwards in the V-shaped slit.
3. To release, pull the string downward and the valve will close
automatically.
If draining residues, e.g. liquid fertilizer into a reservoir, a snap coupler
with hose can rapidly be connected to the drain valve, and the liquid is
safely drained.
108
. (Keep pressure SmartValve in
and pressure SmartValve towards
and wash the sprayer with the cleaning device located on sprayer's right
-position).
.
. Adjust the spraying

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