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2. Add the slurry to the sprayer tank with the pump
running and the agitation valve open. The agitation
pressure should be at 50 PSI and all boom sec-
tions should be off.
3. Add other fertilizers or chemicals once the original
slurry is circulating throughout the system. Con-
tinue filling the tank with water (or other specified
liquid carrier). Do not leave the sprayer unat-
tended.
4. Let the sprayer run for 5-10 minutes before spray-
ing the chemicals to allow adequate mixing.
5. See manufacturer’s recommendations to determine
the application rate for the desired chemical and
Tee Jet to determine the specific application pres-
sure and travel speed for your application.
6. Turn the boom on when the vehicle is moving to
prevent over-applying the chemical in any one
spot. Operate the pressure adjust switch on the
control box to adjust boom pressure while spraying.
Emptying the Tank after Spraying
1. Empty the tank while spraying whenever possible.
Closing the agitation valve when the tank is nearly
empty will allow you to almost completely empty
the tank on the field.
2. Use the drain hose to empty the tank.
NOTE
If you have access chemical remaining in the tank, it
must be handled and disposed of in an EPA approved
method. Consult the manufacturer’s label. Do not
empty chemicals into drains, sewers or onto the ground
as it can contaminate nearby water sources!
3. If you are changing chemicals or preparing the
sprayer for storage, the entire system, including
pump, hoses and boom sections needs to be emp-
tied and cleaned.
Cleaning the Sprayer
1. After emptying the sprayer tank, add clean water to
the sprayer and allow it to circulate through the
system. Spray this rinse water onto the field that
was last sprayed. While the sprayer is being
flushed on the field, turn the boom sections on to
flush out the boom sections, check valves and noz-
zles and turn them off to flush out the throttling
valves and bypass lines. Repeat this step several
times. Make sure the solenoid and throttling valves
are thoroughly cleaned. See Cleaning the Sole-
noid and Throttling Valves in next column.
2. The boom pressure gauge is equipped with a ball
valve that is used to clean out any chemical that
has built up under the gauge protector. With clean
water in the sprayer tank and the pump running
open the ball valve and allow the discharge from
the hose to flow into a bucket. After the liquid turns
clear, close the valve and return the contents of the
bucket into the tank.
Using the Air Cleanout Valve
1. Open all valves including drain valve. Allow the
tank to drain completely.
2. Open the air cleanout ball valve and attach a shop
air line (30 PSI maximum, safety clip type recom-
mended) to the air valve.
3. Close the pump suction valve located under the
tank. The air will force out any water in the agitator
line, agitator head and the line connected to the
boom pressure gauge.
4. Close all valves except the manual pressure con-
trol valve. Turn on the master, left, center and right
control switches. Allow the air to blow out all boom
feed lines, manifolds, nozzle lines, check valves
and nozzles. A whistling sound will be heard at
each nozzle when it is clear.
5. Disconnect the air line and close the valves.
6. Open the filter drain valve and allow any liquid and
foreign material in a safe and responsible manner.
Cleaning the Solenoid and Throttling
Valves
Solenoid and throttling valves must be flushed with
clean water daily to assure proper valve operation.
1. With the pump running and the master switch on,
turn on the three boom sections to flush out
sprayer nozzles.
2. Turn all boom sections off to force water through
the throttling valves and bypass line. Repeat sev-
eral times.
3. Periodically clean each throttling valve by unscrew-
ing its gray knob until it stops. Allow the valve to
thoroughly flush with water.
4. Recalibrate the throttling valves as described in the
previous section before using sprayer again.
IMPORTANT
When finished with the sprayer, make sure all switches
on the control box are off.
Protecting the Sprayer from Freezing
If the sprayer is to be stored in freezing or near-freezing
conditions, protect the pump and plumbing system by
draining and cleaning the system and pumping RV anti-
freeze solution through the plumbing system.
NOTE
Locke Turf strongly recommends the use of recrea-
tional vehicle anti-freeze.
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