Toro 41199 Operator's Manual page 32

Calibrating the Flowmeter
Note: Perform this calibration procedure each time nozzles
are changed to ensure the greatest accuracy.
The Spray Pro monitor comes approximately calibrated for
the flowmeter. Complete the following procedure to fine tune
the flowmeter calibration:
1. Set the parking brake.
2. Fill the sprayer tank with a known quantity of water, at
least 100 US gallons (380 L).
Note: Do not rely on the marks on the side of the tank
for measuring the water for this procedure. They are
approximate measurements, but not accurate enough
for this calibration.
3. Set the pump switch to the On position to start the
pump.
4. Set all three boom levers and the master spray lever
to the On position. Run the booms only until the air
is purged from the line, then turn them off using the
master spray lever.
Important: In order to accurately record the
volume, all three boom valves must remain on
during this procedure. Turn the booms off using
only the master spray lever. This sprayer cannot
accurately report calibration volume when any of
the boom valves are off.
5. Turn the selection dial to the Calibration Volume
position.
6. Press and hold the Reset calibration button until the
display reads "0".
7. Set the master spray lever to the On position and run
the booms until all the water is out of the tank, then
stop them using the master spray lever.
8. Compare the volume displayed on the monitor to the
volume of water you put into the tank.
•
If the volumes are the same, you do not need to
calibrate the monitor any further.
•
If the values are different, continue with the rest
of this procedure.
9. Turn the selection dial to the Flowmeter Calibration
position.
10. Press and hold Calibrate button until the red light on
the monitor illuminates.
The display will alternate between the flowmeter
calibration value (indicated by the word "CAL" on the
monitor) and the calibration volume.
11. When the calibration volume is displayed, use the
Increase or Decrease calibration buttons to change it
to the amount of water you put in the tank.
12. When the display begins alternating again, the
flowmeter calibration value will have changed; write
this number down and save it. This is the calibration
value for your sprayer.
13. Press the Calibrate button until the red light turns
off. You can also exit calibration mode by driving the
sprayer.
Calibrating the Speed Sensor
The Spray Pro comes approximately calibrated for the speed
sensor. Complete the following procedure to fine tune the
speed sensor calibration:
1. Check and fill all tires; refer to Checking Tire Pressure
in the Drive System Maintenance section.
2. Fill the fresh water tank.
3. Fill the sprayer tank half-full of water.
4. Select a straight, flat track of ground that is similar to
your turf conditions.
Note: Using a road or other paved surface could cause
an inaccurate reading when you later drive the sprayer
on turf.
5. Measure 500 feet (or 150 m), marking both the start
and end points.
6. Position the sprayer at the starting point.
7. Set the pump and the master spray lever to the Off
position.
8. Turn the selection dial to the Calibration Distance
position.
9. Press and hold the Reset calibration button until the
display reads "0".
10. Drive the machine from the start point you marked to
the 500 ft (or 150 m) end point.
11. When you reach the end point stop the machine.
12. Set the parking brake.
13. Look at the distance displayed on the monitor.
•
If it reads "500 feet (or 150 m)", you do not need
to calibrate the monitor any further.
•
If it does not read "500 feet (or 150 m)", continue
with the rest of this procedure.
14. With the selection dial set to the Speed Calibration
position, press and hold the Calibrate button until
the monitor displays "CAL" and the red light on the
monitor illuminates.
The display will alternate between the distance and the
speed calibration value ("CAL" shown).
15. When the distance is displayed, use the Increase or
Decrease calibration buttons to change it to 500 feet
(or 150 m).
16. When the display begins alternating again, the speed
calibration value will have changed; write this number
down and save it. This is the calibration value for your
sprayer.
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