Technical Residue; Using The Drain Valve - Hardi NAVIGATOR PRO Original Instruction Book

5 - Operation
Rinsing when main tank is not empty
Rinsing the pump, operating unit, spray lines, etc. in case of stop in spraying before main tank is empty (e.g. beginning rain
etc.).
Cleaning of the liquid system:
1. Turn suction valve towards
2. Close AgitationValve (no agitation).
3. Engage the pump and spray the water from the rinsing tank in the field until all nozzle tubes/nozzles have been
flushed with clean water.
4. Disengage pump again.
μ
ATTENTION! It is advisable to increase the forward speed (double, if possible) and reduce the pressure to 1.5 bar (20
psi) when spraying diluted remaining liquid in the field just sprayed.
1.
Cleaning the sprayer on the outside
Cleaning".
2. When another 1/3 of the contents in the rinsing tank is used, turn the suction valve towards
3. Turnpressure Agitation valve towards "External Cleaning Device" and wash the sprayer with the cleaning device
located on sprayer's right side.
4. Disengage pump again.
μ
ATTENTION! If the sprayer is cleaned with a high pressure cleaner, lubrication of the entire machine is recommended.

Technical residue

Inevitably a quantity of spray liquid will remain in the system. It cannot be sprayed properly on the crop, as the pump takes
in air when the tank is about to be empty.
This Technical Residue is defined as the remaining liquid quantity in the system as the first clear pressure drop on the
pressure gauge is read.
The residues in the tank should be diluted immediately in the relationship 1:10 with water and afterwards be sprayed to 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. It is to be made certain however that the liquid in the spray lines are in unchanged
concentration. Therefore there should be an untreated patch available to spray this out.

Using the drain valve

The drain valve is operated from platform just beside the main tank lid.
Pull the string to open the drain valve. The valve is spring-loaded, but
can be kept open by pulling the string upwards in the V-shaped slit. 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
safely drained.
70
. (Keep pressure SmartValve in
Turn suction valve towards
-position).
and pressure SmartValve towards "Internal Tank
.