MODEL: ATV-25-71
CAUTION: Always check the vehicle load rating before using
this sprayer. The loaded weight of the sprayer and boom
assembly is about 290 lbs. when the tank is full. Care must be
taken not to tip the vehicle over backwards, especially when
starting or accelerating.
This sprayer is partially assembled at the factory. Assembly
may be completed by following these steps.
1. Install the boom assembly to the boom brackets as
shown in the exploded view drawing. The harness with
nozzles should be attached to the boom frame in step
The purpose of this manual is to assist you in operating and
maintaining your ATV mounted sprayer. Please read it
carefully as it furnishes information which will help you
achieve years of dependable trouble free operation.
Products are warranted for one year from date of purchase
against manufacturer or workmanship defects.
Your authorized dealer is the best source of replacement
parts and service. To obtain prompt, efficient service, always
remember to give the following information:
1. Correct part description and part number.
2. Model Number of your sprayer.
3. Serial Number of your sprayer.
2. Attach the tank to the brackets loosely as shown in the
exploded view drawing.
3. Place the sprayer onto the carrier rack of the ATV. Use
the u-bolts and hardware to secure the tank mount to
the rack.
4. Connect the boom mounting brackets to the tank
mounting brackets with hardware provided as shown.
Note these brackets will be located about 16 1/4" apart
on most ATV's. Now tighten all bolts and nuts.
5. Connect the wiring from the pump to the 12 volt power
source of the vehicle. The red wire of the two wire set
must be connected to the positive post on the battery or
the “Hot” connection on a switch or to the ammeter. The
brown wire may be grounded or connected to the
negative battery post.
Part description and part numbers can be obtained from the
illustrated parts list section of this manual.
6. The pressure gauge is shipped in a parts bag. Thread
the gauge into the tee fitting as shown on the exploded
view drawing.
Whenever you need parts or repair service, contact your
distributor / dealer first. For warranty work always take your
original sales slip, or other evidence of purchase date, to your
distributor / dealer.
7. Attach the nozzle harness to the metal frame of the
center boom and the outer booms. The threaded part
of the nozzles are to be inserted through the holes, and
secured with the hex nuts provided in the parts sack.
8. Join the feeder hose (Item 4) to the nylon tee barb on
the boom harness assembly and secure with a hose
• Corrosion Resistant Polyethylene Tank.
• 12 Volt Diaphragm Pump - Demand Switch.
• Pressure Gauge-Adjustable Pressure Range.
• Handgun w/ Adjustable Nozzle
• 15 Foot Handgun Hose.
• 7 Diaphragm Check Nozzle Boom Assembly
• 140" Spray Coverage
• Corrosion Resistant Nozzles
W W W. F I M C O I N D U S T R I E S . C O M
1000 FIMCO LANE • P.O. BOX 1700 • NO. SIOUX CITY, SD 57049
TOLL FREE: 800-831-0027 • TOLL FREE FAX: 800-494-0440
Form No. 690
(5004550 5/06)
Printed In U.S.A.
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The pump will run as soon as the wires are connected to the
battery system. Running the pump dry for short periods of
time will not harm the pump. Read the operating instructions and then run the sprayer using only water for testing.
When everything tests all right, add the desired chemical
mixture and water combination and start the spraying
Always fill the tank with a desired amount of water first, and
then add the chemical slowly mixing as you pour the
chemical into the tank. You may use the handgun to spray
into the solution in order to mix the chemical and water.
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
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, boom and bypass lines are fully
closed. The system remains pressurized, and the pump
motor will restart automatically when the handgun or
boom line is opened.
• By closing the bypass valve pressure is increased to the
• Opening the valve will decrease pressure to the boom.
• Four things must be considered before spraying with the
1. How much chemical must be mixed in the tank.
2. Rate of spray (gallons per acre to be sprayed).
3. What pressure (P.S.I.) will be used.
4. Speed traveled (M.P.H.) while spraying.
• Refer to the chemical label to determine the chemical
• See the tip chart to determine the pressure to be used. The
chart will also show the speed used when spraying.
• Open the "Y" valve to the boom nozzles.
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MPH = Miles Per Hour
FPM = Feet Per Minute
PSI = Pounds Per Square Inch
GPM = Gallons Per Minute
• Check the spray pattern. Usually you can see the coverage
better on solid concrete surface, such as a driveway.
Chemical labels may show application rates in gallons per
acre, gallons per 1000 square feet, or gallons per 100 square
feet. You will note that the tip chart below shows all three of
these rating systems.
Once you know how much you are going to spray then
determine (from the tip chart) the spraying pressure (PSI), and
the spraying speed (MPH).
When selecting pressure from the tip chart, it is a good idea to
try for the 20 or 30 PSI range as this allows an excellent nozzle
pattern. 10 PSI begins to break up the pattern, and at 40 PSI,
you may notice some drift.
Check the sprayer for leaks and be sure the sprayer works
properly using 30 - 40 P.S.I. or the desired pressure
Raise or lower the nozzles so that you will have a good
coverage pattern. Generally the proper height will be 18
inches from the object being sprayed.
Add water to the tank and drive to the starting place for testing.
Adjust the pressure. Initially begin spraying by opening the
handgun. This will enable the air in the line to be eliminated
while building pressure.
Add the proper amounts of water and chemical to the tank and
drive to the starting place for spraying. When you are ready to
spray, turn the ball valve for the boom to the "on" position. This
will start the solution spraying from the tips.
Conditions of weather and terrain must be considered when
setting the sprayer. Do not spray on windy days. Protective
clothing must be worn in some cases. Be sure to read the
chemical label carefully.
If it becomes necessary to clean the screen in the suction line,
remove the screen from the nylon swivel nut (located at the
inlet of the pump). The screen may now be tapped or flushed
with clear water for cleaning.
WARNING: Some chemicals will damage the pump valves if
allowed to soak untreated for a length of time. Always flush the
pump with water after use. Do not allow chemicals to sit in
pump for extended times if idleness. Follow chemical manufacturers instructions on disposal of all waste water from the
After use fill the sprayer part way with water, start the sprayer
and allow 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 a
chemical neutralizer such as Nutra-Sol or equivalent and
repeat cleaning instructions above. Flush the entire sprayer
with the neutralizing agent. Follow the chemical manufacturers disposal instructions of all wash or rinsing water.
Remove tips and screens from the boom. Wash tips thoroughly with water or cleaning solution (appropriate for chemical used). Blow out orifice, clean and dry. If 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 tips
before storing.
Drain all water out of sprayer paying special attention to pump,
handgun & valve. 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 anti-freeze through the entire plumbing.
Proper care and maintenance will prolong the life of the
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