Use Of Fl Ush Tank And Rinse Nozzles (Optional); Technical Residue; Draining Tanks - Hardi New NAVIGATOR 1100 Operator's Manual

IMPORTANT! If the Select Source handle is turned
to MAIN TANK, the Bag & Bottle Rinse uses diluted
spray solution from the main tank to rinse containers
of con cen trat ed chem i cals. Always rinse the chem i cal
con tain ers with clean water several times until they are
clean before disposal. Turn the Select Source han dle to
FLUSH TANK (optional) to use clean water to rinse the
chem i cal containers.
9 Close valve (C Fig 27 ) again when the hopper is
rinsed.
IMPORTANT! If the Select Source handle is turned to
MAIN TANK, the hopper rinsing device uses diluted
spray so lu tion from the main tank to rinse the hopper of
con cen trat ed chem i cals. Always rinse the hopper with
clean water when fi nished spraying. Turn the Select
Source handle to FLUSH TANK (optional) to use clean
water to rinse the hopper.
10 Close valve (A Fig 27 ) and the chemical hopper
lid. Turn the Select Function handle to SPRAY
MAX AG I TA TION to mix the chemicals in the main
tank. When the spray liquid is well mixed, it may
be sprayed on the crop. Leave the Select Func tion
handle pointing to the SPRAY MAX AG I TA TION
arrow and the Variable Agitation handle pointing
down so the spray liquid is continuously ag i tat ed
while spraying.
Use of fl ush tank and rinse nozzles
(op tion al)
The incorporated fl ush tank can be used for two
dif fer ent purposes.
A. In-fi eld diluting of remaining spray liquid residue in
the spraying circuit for spraying the liquid in the fi eld,
before cleaning the sprayer.
1. In order to empty the sprayer as much as possible,
turn the Select Source handle turned to MAIN TANK,
turn the Select Function handle to SPRAY BYPASS
TO SUCTION and turn the Variable Agitation handle
to OFF. Spray until air comes out of all nozzles.
IMPORTANT! If the sprayer is equipped with a
centrifugal pump (ECPC), do not run pump dry
for longer than 3 seconds. Otherwise severe
damage to the pump will occur.
2. Remove the tank fi lter basket.
3. Turn the Select Source handle to FLUSH TANK and
turn the Variable Agitation handle to TANK RINSE.
4. Engage and set the pump at approx. 300 r.p.m.
5. When rinsing water corresponding to approx. 10
times the spray liquid residue is used, turn Select
Source handle to MAIN TANK and operate all valves,
so all hoses and components are rinsed.
6. Turn the Variable Agitation handle to OFF, turn the
Select Function handle to BYPASS TO SUCTION.
Spray liquid in the fi eld you have just sprayed.
7. Repeat steps 3-6 until the fl ush tank is empty.
Operation
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HARDI New NAVIGATOR OPERATOR'S MANUAL
B. Rinsing the pump, operating unit, spray lines, etc. in
case of interruption in spraying before main tank is
empty (e.g. due to rain, etc.).
1. Turn the Select Source handle to FLUSH TANK, turn
the Select Function handle to BOOM FLUSH and
turn the Variable Agitation handle to OFF.
2. Engage the pump and spray water from fl ush tank
in the fi eld until all nozzle tubes/nozzles are fl ushed
with clean water.
3. Disengage pump and turn Select Source valve to the
OFF position.
WARNING! The rinse nozzles cannot always
guar an tee a 100% cleaning of the tank. Always
clean manually with a brush af ter wards,
es pe cial ly if crops sensitive to the chemical just
sprayed are going to be sprayed afterwards.

Technical residue

Inevitably a quantity of spray liquid will remain in the
system (which cannot be sprayed prop er ly on the
crop) as the pump takes in air when the tank is about
to be empty. The technical residue is defi ned as the
re main ing liquid quantity in the system as the fi rst clear
pres sure drop on the pressure gauge is read.
The dilutable residue must be diluted with 10 times the
amount of clean water and sprayed onto the crop just
sprayed before cleaning the sprayer - see Cleaning (pp.
27-28).

Draining tanks

Main tank drain valve
Pull the string at the left hand side of the tank to open
the drain valve. The valve is spring-loaded to close
it, but can be kept open by pulling the string out and
upwards in the V-shaped slot ( Fig 28 ).
To release and close the drain valve again, pull the
string downwards and the valve will close au to mat i cal ly.
Fig. 28
If draining a residue (e.g. liquid fertilizer) into a
1
con tain er, a 2 / " snap-coupler with hose can rapidly
2
be con nect ed to the drain valve, and the liquid safely
drained.
23