Operating instructions – TeeJet 844 Sprayer Control User Manual

Page 32

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 inline, and properly secured.

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.

Follow these steps, in sequence, being sure the Master Boom Switch is in its
“off” position:

■

Be sure the tank shut-off valve is open.

■

Start the engine, engage pump, and set the rpm to that which will be used
when spraying.

■

Switch the computer on by depressing the key on the display panel.

■

Ensure that the spray tips being used match those preprogrammed.

■

Turn “on” the toggle switches for each of the spray booms on your sprayer.

■

Depress the Auto/Manual key so that the red LED light indicates
“MAN” mode.

■

Now, toggle the Master boom switch to “on.”

■

Adjust the pressure with the and/or keys.

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.

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.

The TeeJet Spray Products Catalog, supplied with the 844 Sprayer Control kit,
gives complete information on sprayer calibration, along with other useful data
and spraying information.

Operating Instructions

Very important: Whenever you are working around a sprayer or farm
chemicals, be sure to wear protective clothing and eyewear.