24
Operation
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.
Very important: Whenever you are working around a sprayer or farm chemicals, be sure to
wear protective clothing and eye wear.
1. Partially fill the sprayer tank with water to flush the system and to make a visual check of the spray tips to
be sure all tips are delivering a good spray pattern.
2. Follow these steps, in sequence, being sure the Master Boom Switch is in its “off” position:
a. Be sure the tank shut-off valve is open.
b. Start the engine, engage pump, and set the rpm to that which will be used when spraying.
c. Switch the computer on by depressing the key on the display panel.
d. Ensure that the spray tips being used match those preprogrammed.
e. Turn “on” the toggle switches for each of the spray booms on your sprayer.
f. Depress the Auto/Manual key so that the red LED light indicates “MAN” mode.
g. Now, toggle the Master boom switch to “on.”
h. Adjust the pressure with the and/or keys.
3. 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”.
4. The above steps provide a quick way to check-out your sprayer and computerized control system.
5. However, 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.
6. The TeeJet Spray Products Catalog, supplied with the 844 Sprayer Control kit, gives complete informa-
tion on sprayer calibration, along with other useful data and spraying information.
