6. Working
35
6.4.
Cleaning of the water system
Every time that the working time is finished or whenever the phytosanitary product is changed, a
cleaning of all water system will have to be carried out. With the main tank empty and the clean water
tank full of water withouth phyto-sanitary product, follow the next steps:
1)
With the PTO disconnected, turn the 3-positions valve connecting the suction to the clean
water tank.
2)
Close all valves, the distributors’ and the sectors’ valves and open the valve of the rinsing
nozzle/s (rinsing robot).
3)
Connect the PTO, with the pump working and cleaning all the walls of the tank.
4)
Stop the PTO when more than 1/3 of the clean water tank has been absorbed.
5)
Change the position of the 3-ways valve to the main tank, close the valve of the rinsing nozzle
(rinsing robot) and open the other valves.
6)
Connect the PTO and open the sectors, throwing this water to the plantation we have been treating.
7)
Repeat again all steps twice until emptying the clean water tank.
ATTENTION! With these steps a correct cleaning of the whole circuit and the main
tank is guaranteed. A good cleaning of the machine extends the lifetime of the
components.
6.4.1.
Cleaning of Filters
The cleaning of the filters assures that:
•
The mistblower’s components like the valves, the diaphragms and the distributor do not get
obstructed or damaged while they are working.
•
The nozzles do not get obstructed during the spraying work.
•
The pump has a long lifetime. The obstruction of the suction filter will give as a result a
cavitation of the pump. The suction filter is the element which protects all the main components
of the sprayer. Revise this one regularly.
6.5.
Controls
The sprayer can be supplied with different sort of controls to regulate spraying. Before starting the
treatment, you must choose a model of nozzle to use and know at which pressure you are going to
work (it is recommended working in a scope between 8-12 bar).
See the book “Spraying techniques”.
ATTENTION! All the distributors must be regulated with clean water before spraying with
chemical products.
6.5.1.
GRH hand-operated control
6.5.1.1.
Pressure adjustment:
1)
Turn the selection lever into by-pass devices position (S)
2)
Plug the PTO to the working planned revolutions.
3)
Turn the selection lever towards position of opening both sections (A)
4)
Turn the lever of pressure to the desired pressure. Clockwise turn stands for raising pressure.
Counterclockwise one for lowering pressure. If you spray only in one side of the machine place
the lever in right position (DX) or left one (SX) and start again regulating the pressure by turning
the lever towards the desired working pressure.
