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Time Required in seconds to travel a distance of:

17

34

4.0
5.0
6.0
7.0

9.0

8.0

10.0

7.6
6.8

9.7
8.5

14
11

15
14

19
17

23

27

100 Ft.

68 sec.

2.0
3.0

1.0

(Miles per Hour)

Speed in M.P.H.

Speed Chart

136 sec.

34
23

45

68

200 Ft.

51

23
20

26

29

41
34

205 sec.

300 Ft.

102

68

Page 2

Operation & Calibration

The performance of any agricultural chemical depends upon the 

proper application of the correct amount. 

Be sure that your 

equipment has been calibrated before spraying.

The tips supplied as standard with this boom can be used for a 

wide variety of spraying applications. The speed and pressure 

charts in this manual indicate the rates can be changed 

considerably by changing speed and pressure.

Initially begin spraying by opening the handgun. This will enable 

the air in the line to be eliminated through the tip, while building 

pressure.

The pumping system draws solution from the tank, through the 

strainer, and to the pump. The pump forces the solution under 

pressure to the handgun or boom nozzles.

Pressure may be decreased by opening the bypass valve to the 

tank. When it is closed the highest spraying pressure will be 

reached.

• Open the handgun by squeezing the handle lever

• Rotating the adjustable nozzle tip on the handgun will change the 

tip from a straight stream to a cone pattern (finer mist). Be sure the 

thumb nut on the adjustment nozzle is tight.

• The pump motor's demand switch shuts off the motor when the 

handgun, bypass valve and boom lines are fully closed.

• The system remains pressurized, and the pump motor will restart 

automatically when the handgun or boom line is opened. If, 

however, the bypass line is open, the pump will not shut off 

automatically.

• The 5 nozzles are spaced about 20" apart from each other, and 

will spray a 100 inch wide swath.

• The proper nozzle height is approx. 17 to 20 inches above the 

object being sprayed.

Adjusting Pressure

- When the bypass valve is closed, pressure is at the highest point.

- Opening the valve will decrease pressure.

Testing the Sprayer

It is important to test the sprayer with plain water before

actual spraying is attempted. This will enable you to check the 

sprayer for leaks in the plumbing system.

1. Open tank lid and be sure the tank is clean and free of foreign 

material. Fill the tank about half full with plain

water.

2. The strainer is located at the bottom of the intake tube, inside 

of the tank. Clean periodically.

3. There are valves located on the manifold. One of these valves 

is to shut the boom on or off and the other is for pressure 

adjustment. (bypass back into the tank) The 3rd line is the 

handgun line. That will always be pressurized.

4. You may now start the sprayer.

5. The pressure should now be increased as desired, by closing 

the bypass valve.

6. During this testing period be sure to observe the spray pattern 

given by the spray nozzles. Each nozzle should overlap the next 

nozzle approximately 30%. If there is any pattern distortion, it will 

be necessary to remove and clean the affected tips.

CAUTION: Never use a metal object or other sharp item

for cleaning a nozzle tip. It is better to use a nozzle brush

(not wire brush) or compressed air for tip cleaning.

Drain all water out of your sprayer, paying special attention to 

the pump, handgun, and valve(s). These items are especially 

prone to damage from chemicals and freezing weather.

The sprayer should be winterized before storage by pumping 

a solution of RV antifreeze through the entire plumbing 

system. This antifreeze solution should remain in the 

plumbing system during the winter months. When spring time 

comes and you are preparing your sprayer for the spray 

season, rinse the entire plumbing system out, clearing the 

lines of the antifreeze solution. Proper care and maintenance 

will prolong the life of your sprayer.

Winter Storage

Four things must be considered before spraying with the boom:

How much chemical must be mixed in the tank.

1.

Rate of spray (gallons per acre to be sprayed)

2.

What pressure (p.s.i.) will be used.

3.

Speed traveled (mph) while spraying.

4.

- Refer to the chemical label to determine your chemical mixture.

- See the tip chart to determine the pressure to be used. The chart will also show the speed used when spraying.

- Start the pump and open the valve(s) to the boom nozzles.

- Check the spray pattern. Usually you can see the coverage better on a solid concrete surface, such as a driveway.

- The nozzles should be approx. 17"-19" above the objects being sprayed.

Using the Boom Nozzles

After Spraying

After use, fill the sprayer tank part way with water. Start the 

sprayer, and allow the clear water to be pumped through the 

plumbing system and out through the spray nozzles.

Refill the tank about half full with plain water and use FIMCO 

Tank Neutralizer and Cleaner, and repeat cleaning instructions 

above.

Flush the entire sprayer with the neutralizing/cleaning agent, 

then flush out one more time with plain water. Follow the 

chemical manufacturer's disposal instructions of all wash or 

rinsing water.

For the boom, (if applicable) remove the tips and screens from 

the nozzle assemblies. Wash these items out thoroughly. Blow 

the orifice clean and dry. If the orifice remains clogged, clean it 

with a fine bristle (NOT WIRE) brush, or with a toothpick. Do 

not damage the orifice. Water rinse and dry the tips before 

storing.

WARNING: Some chemicals will damage the pump valves 

if allowed to soak untreated for a length of time! ALWAYS 

flush the pump as instructed after each use.

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