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15.5. - CHECK HYDRAULIC DELIVERY
TESTING OF HYDRAULIC DELIVERY MUST BE MADE WITH THE SPRAYER ON A FLAT
SURFACE. THE PROOF IS IN THE DETECTION OF TIME TO PROVIDE A KNOWN QUANTITY
CONTENT OF LIQUID IN TANK
1.
Disengage the fan (for versions where it is foreseen): see Paragraph 8.1.a.
2.
Close the taps of the 2-way distributor:
a.
if manual (P9), the levers are to be lowered (horizzontally positioned);
b.
if electric, position to "OFF" the quick-break switches (E10).
3.
Fill the tank with about 250 liters of clean water (
USED AS REFERENCE THE MARK OF LEVEL
INDICATOR ON THE TANK
- see Paragraphs 8.2/8.3).
4.
Engage the fan (for versions where it is foreseen): see Paragraph 8.1.b.
The claimed performance is obtained with the PTO at 540 rpm. and with the
fan running .
For correct verification result this condition MUST ALWAYS BE RESPECTED.
5.
Bring the PTO to 540 rpm rotation rate.
6.
Open the taps of the 2-way distributor:
a.
if manual (P9), the levers are to be raised (vertically positioned);
b.
if electric, position to "ON" the quick-break switches (E10).
7.
Regulate the operating pressure, by acting on the pressure regulator (P5) (or electric E5) with the
distributor, hand (P9) or electric (E9), open (DISTRIBUTION) and regulate the position of calibration
disc (P11) in accord to “Delivery chart” relating to the sprayhead used.
8.
Close the taps of the 2-way distributor:
a.
if manual (P9), the levers are to be lowered (horizzontally positioned);
b.
if electric, position to "OFF" the quick-break switches (E10).
9.
Add water to the tank until you reach the mark of 300 liters (reference).
10. Add additional 25 liters of water to the tank, the quantity required for the verification flow, using
a graduated container or by weighing the amount payable (1liter = 1 kg).
11. Open the taps of the 2-way distributor (manual or electric) to start delivery.
12. Continue the delivery until the water reaches the mark 300 liters on the level indicator.
NOTED THE TIME ELAPSED BETWEEN THE RELEASE DELIVERY AND THE ACHIEVEMENT
OF MARK 300 LITERS.
60
t
x
25
=
Q
13. Apply the formula:
where:
Q
, is the hourly delivery detected (lt./h);
t
, is the time measured in minutes and
seconds (centesimal)
TESTING IS CONSIDERED WITH POSITIVE RESULTS (machine properly calibrated) WHEN THE
VALUE CALCULATED "Q" IS INDICATED ON THE "DELIVERY CHART" WITH A TOLERANCE OF
± 2.5%.
In case of different values to verify the efficiency of the pipe, the fittings, the pressure gauge and the
proper positioning of the calibration discs (P11), if necessary replace the damaged or defective, and
the test repeated.
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