Hardi MASTER PRO VHH, Instruction Book, Page: 49 / 82

5 - Operation
49
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 . (Keep pressure valve in -position). Close Self-Cleaning filter, if possible.
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.
Cleaning the sprayer on the outside
±
WARNING! External cleaning with the spray gun is only possible with emptied and cleaned main tank. Do a complete
main tank cleaning before attempting to use the spray gun!
1.
Turn suction valve towards and pressure valve towards . Keep other valves closed.
2.
When another 1/3 of the contents in the rinsing tank(s) is used, turn the suction valve towards .
3.
Open the manual valve at the operating unit and wash the sprayer with the cleaning device located on sprayer’s rear
side. If neccessary, the pressure can be adjusted on the pressure regulation valve.
4.
Disengage pump again.
μ
ATTENTION! If the sprayer is cleaned with a high pressure cleaner, lubrication of the entire machine is recommended.
Using the drain valve
The drain valve is operated from the right side of the sprayer’s front. 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.
Spray Technique - see separate book.
Optional extras - see separate books.