47
HARDI CIRCULATION SYSTEM
GB 08 07
Use of rinsing tank and rinsing nozzlesUse of rinsing tank and rinsing nozzles
Use of rinsing tank and rinsing nozzlesUse of rinsing tank and rinsing nozzles
Use of rinsing tank and rinsing nozzles
The incorporated rinsing tank can be used for two
different purposes.
A. In-field diluting of remaining spray liquid residue in the
spraying circuit for spraying the liquid in the field
before cleaning the sprayer.
1. Empty the sprayer as much as possible. Turn
the green pressure valve towards No
Agitation and spray till air comes out of all
nozzles.
2. Remove the tank filter basket.
3. Set circulation system for suction from main
tank.
4.
Engage and set the pump at approximately 300
r.p.m.
5. Turn black suction valve towards Rinsing
tank.
6. Turn green pressure valves towards Rinsing
nozzle (if fitted). Or else choose return to
main tank.
7. When rinsing water corresponding to ap-
proximately
1
/
4
of volume in Rinsing tank is
used, turn black suction valve towards
Suction from main tank.
8. Operate all valves, so that all hoses and compo-
nents are rinsed.
9. Let the circulation system run for about 2
minutes.
10. Turn green pressure valve back to Operating
unit and spray liquid in the field you have just
sprayed. Use low pressure (1.5 bar) and high speed.
11. Repeat point 5-10 until the rinsing tank is empty.
NOTE! If a cleaning procedure is given on the chemical
label, follow it closely.
B. Rinsing of the pump, operating unit, spray lines,
etc. in case of stop in spraying before main
tank is empty (e.g. in case of rain etc.).
1. Engage pump and set circulation system for
suction from main tank.
2. Open valve to Operating unit at pressure
side of the Manifold system.
3. Close Self-cleaning filter (yellow valve).
4. Turn blue suction valve for circulation system
towards Rinsing tank.
OperOper
OperOper
Oper
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A sprayer with HARDI CIRCULATION SYSTEM is
operated like other HARDI sprayers.
HARDI CIRCULATION SYSTEM has an extra valve in
the Manifold system. This valve is used to choose
between circulation from main tank or from rinsing tank.
In a spraying situation the valve is set for suction from
the main tank. The valve is set for suction from Rinsing
tank in a cleaning situation. For further cleaning details,
see paragraph Use of rinsing tank and rinsing nozzles.
5. When at least
1
/
8
volume of clean water tank has been
emtied out, then close circulation system at the blue
suction valve.
6. Start spraying. Spray water from rinsing tank in the
field until all nozzle tubes/nozzles have been flushed
with clean water.
7. After 2 minutes or when Rinsing tank is empty, then
disengage pump.
8. Open Self-cleaning filter again.
WARNING! The rinsing nozzles cannot always
guarantee a 100% cleaning of the tank. Always
clean manually with a brush afterwards, espe-
cially if crops sensitive to the chemical just sprayed are
going to be sprayed afterwards!
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