39
OPERATION AND ADJUSTMENTS
BEFORE CALIBRATING THE SPRAYER CHECK THE FOLLOWING:
- Suction filter: dirts
- Hoses: twisted or bored;
- Pressure regulator components (valve seat, valve and spring): wear or dirts;
- Pump: proper lubrication (oil level and grease) and leakages;
- Nozzles: same model, wear, flow rate, strainers.
AFTER CHECKING, PROCEED WITH THE CALIBRATION AS FOLLOWS
1 - Mark off 50 meter on the ground to be sprayer.
2 - Fill up the sprayer.
3 - Choose the working gear.
4 - Engage the PTO.
5 - Accelerate until reaching 540 rpm at the PTO.
SPRAYER CALIBRATION WITH THE CALIBRATOR BOTTLE
6 - Start travelling at leat 5 meters before the initial mark.
7 - Note the time it takes the tractor to travel 50 meters.
8 - On irregular terrain, repeat this operation several times and take the average.
9 - Stop the tractor with the acceleration used to travel the 50 meters, open the nozzles and adjust
the pressure according to directions for the different types of nozzles:
- Cone nozzles
: from 45 to 200 psi
- Flat fan nozzles : from 15 to 60 psi
10 - Use the calibrator bottle to collect the nozzle spray volume during the same time taken to travel
the 50 meters, and read on the column corresponding to the nozzle spacing.
12 -The average obtained will be the spray volume for the gear and pressure already determined.
NOTE: 1º- If the spray volume obtained is below that wished, increase the pressure, decrease the
speed (but 540 rpm at PTO) or change the nozzles for others of higher flow rate.
2º- If the spray volume is above that wished, decrease the pressure, increase the speed
(but keep 540 rpm at PTO) or change the nozzles for others of lower flow rate.
11 - Repeat this operation with several nozzles to obtain a volume average.
50 m
0 m
5 m
400 l/ha
1,000 ml
500 l/ha
300 ml
120 l/ha
150 l/ha
0 ml
0
0
0.40 m
Volume in ml
0.50 m
nozzle spacing
Summary of Contents for CONDOR B-12
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