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3. Then place the jug under one of the
nozzles, for 60 seconds (exactly) and then
record the volume of liquid collected.
4. Repeat the test over a representative
sample of the jets in each boom section
5. Compare the volume collected from each
nozzle to the stated volume in your rate
chart. It should be no more than plus or
minus 10% of the volume stated in your
Nozzle Supplier’s rate chart
6. In the event that any of your nozzles do
not deliver the required volume, a further
investigation is required which may
include, but not be limited to:
a. Cleaning the nozzles, using the method
recommended by the nozzle supplier.
b. Replacing the nozzles.
c. TeeJet advise that nozzles that flow
greater than +10% of their stated
volume are ‘worn out’ and should be
replaced.
d. Cleaning nozzle filters.
e. Replacing filters.
f. Replacing pump diaphragms.
g. Replacing the pump.
h. Ensuring that the application rate
required does not exceed the maximum
flow and pressure parameters of the
sprayer.
Tasks prior to spraying
CAUTION:
Before using this equipment with
a chemical mix, read, and understand, the
instructions on the chemical label. The first
time setup procedure should be carried out as
a water test only prior to any chemical being
added to the tank and applied. Following the
initial set up procedure being followed, there
are several important checks to be carried out
prior to starting spraying.
1. Inspect the sprayer to ensure there is no
damage or wear which could lead to injury,
further damage or reduce its performance.
2. Check all bolts and nuts to make sure they
are tight and secure.
3. Carry out scheduled lubrication.
4. Fit PTO shaft and fit protective cover and
chains.
5. Make sure the sprayer is securely hitched
(i.e. PTO shaft is properly fitted and tractor
linkage arms are securely attached to the
sprayer);
6. Ensure that the two lower linkage arms are
secure and do not sway
7. Fill the flush water tank (where fitted)
and hand wash tank with an appropriate
amount of clean water.
8. Clean all filters and nozzles.
9. Fill main tank with a quantity (approx 10%
of total tank volume) of fresh water.
10. Test the pump with clean water. To start
the pump, engage the PTO at the lowest
revs possible and then gradually increase
revs until the pump reaches its operating
speed. Do not exceed 540 RPM.
11. Check nozzle patterns for irregularities. If
there are irregularities, clean the nozzles
and/or replace. If the problem persists they
could be worn so remove and replace.
12. For optimal sprayer set-up, the operator
needs to be aware of the correct nozzle,
the correct speed at which to travel and
the appropriate rate per hectare to apply
the product. For this information, refer
to the chemical label, the supplier of the
product and the TeeJet catalogue.
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