Toro 41229 Operator's Manual page 29

Note: If you park the vehicle on a flat, level surface
and fill the tank until the water over flows out of the
top of the tank, you will have 200 US gallons (760 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.
6. Set all three boom switches to the On position and the
master boom switch to the Off position.
7. Turn the selection dial to the Calibration Volume
position.
8. Press and hold [RESET] until the display reads "0."
9. Set the master boom switch to the On position and run
the booms until the water level is down to the sump.
Turn the master boom switch off just before the
suction tube draws air, then stop them using the master
boom switch.
10. 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.
11. Press and hold [CAL] 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.
12. When the calibration volume is displayed, use the [+]
or [–] buttons to change it to the amount of water you
put in the tank.
13. 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 vehicle.
14. Press [CAL] until the red light turns off. You can also
exit calibration mode by driving the vehicle.
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 your Operator's
Manual on checking the tire pressure.
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, marking both the start and end
points.
6. Position the sprayer about 30 feet behind the starting
point.
7. Set the master boom switch to the Off position. The
monitor should display "HOLD".
8. Turn the selection dial to the 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 end point. Ensure that you come up to speed
before reaching the start point and do not stop or brake
until after you pass the end point. When you reach the
start point, press the master boom switch to start the
distance tracking with the monitor.
11. When you reach the end point, set the master boom
switch to the Off position to stop the monitor.
12. Look at the distance displayed on the monitor.
• If it reads "500 feet", you do not need to calibrate
the monitor any further.
• If it does not read "500 feet," continue with the rest
of this procedure.
13. Set the parking brake.
14. With the selection dial set to the Distance position,
press and hold the Calibrate button until the monitor
displays "CAL HOLD" and the red light on the
monitor illuminates.
The display will alternate between the speed
calibration value and the distance value.
15. When the distance value is displayed, use the Increase
or Decrease calibration buttons to change it to 500
feet.
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.
17. Press the Calibrate button until the red light turns off.
You can also exit calibration mode by driving the
sprayer.
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