37
844E Sprayer Crontrol
98-70006 R3
OPERATING INSTRUCTIONS
SPRAYER CHECKOUT
Before spraying, check all connections related to the Sprayer Control assembly. Particular attention should be
given to the speed sensor to be sure the sensor and magnets are in line, and properly secured.
WARNING: Whenever you are working around a sprayer or farm chemicals, be sure to wear protective clothing
and eye wear.
Partially
fi
ll the sprayer tank with water to
fl
ush the system and to make a visual check of the spray tips to be sure
all tips are delivering a good spray pattern.
Follow these steps, in sequence, being sure the Master Boom Switch is in its “off” position:
1. Be sure the tank shut-off valve is open.
2. Start the engine, engage pump, and set the rpm to that which will be used when spraying.
3. Switch the computer on by pressing the
key on the display panel.
4. Ensure that the spray tips being used match those pre programmed.
5. Turn “on” the toggle switches for each of the spray booms on your sprayer.
6. Press the Auto/Manual key so that the red LED light indicates “MAN” mode.
7. Now, toggle the Master boom switch to “on.”
8. Adjust the pressure with the
and/or
keys.
9. While spraying, adjust the pressure with the
key to the system’s minimum point.
10. Now press the
key for 3 seconds. This will move the regulating valve to its middle position.
11. Manually adjust the system pressure using a throttle valve in the supply line or a manual shutoff valve on a
bypass line. Adjust the system pressure so that it is close to what your operating pressure will be for your
application.
12. This ensures a maximum range of automatic adjustment while spraying in Auto mode.
At this point, the sprayer will be activated and spray tip performance can be visually checked. The pressure adjust
keys can be used to raise or lower your spraying pressure. To stop spraying, toggle the Master boom switch to
“off”.
The above steps provide a quick way to check out your sprayer and computerized control system.
NOTE: It is recommended that you calibrate your sprayer to prepare the unit for operation, and to diagnose spray
tip wear. Worn tips can contribute to costly chemical waste, and inaccurate spraying regardless of your
use of a sprayer control. Calibration is important and necessary to obtain the benefits associated with a
computerized sprayer control.
