Agri-Fab 45-0590 60 Gallon Deluxe Tow-Behind Sprayer User Manual

Agri-Fab 45-0590 60 Gallon Deluxe Tow-Behind Sprayer

SAFETY

•  Read this owners manual and the vehicle owners manual before using this sprayer.
•  Never allow children to operate this sprayer.
•  Do not allow anyone to ride on or sit on this sprayer.
•  Keep the area clear of all persons, especially small children.
•  Read the chemical label before handling or mixing chemicals.
•  Wear eye and hand protection and protective clothing when handling and applying lawn chemicals.
•  Always release pressure in the system before filling, cleaning, or servicing the sprayer.
•  Liquid spray material is recommended. Sprayer does not agitate wettable powders.
•  Do not spray on windy days.
•  Stop sprayer when tank is empty.
•  Attaching this sprayer may affect your tractor’s braking and stability.
•  STAY OFF STEEP SLOPES. Refer to the vehicle owner’s manual concerning safe operation on slopes.
•  Operate at reduced speed on rough terrain, along ditches, and on hillsides to prevent loss of control.
•  Stopping distance increases with speed and weight of the towed load. Travel slowly and allow extra time and distance to stop.
•  Be aware of your tractor’s capabilities. When filled with liquid, the 45-gallon sprayer weighs 620 lbs (281 kg)

WHAT IN THE BOX

OPERATION

CAUTION: Connect to a 12 V battery only.

PSI PRESSURE GAUGE
Wrap threads of pressure gauge with sealant tape before attaching to the sprayer. CAUTION: Do not overtighten. Only hand tighten the pressure gauge to the sprayer valve.

CALIBRATING THE SPRAYER

When spraying with boom, sprayer must be calibrated to ensure proper spray coverage and to combat over-application or under-application. The calibration process consists of three steps:

1.  Calculate speed of tractor.
2.  Determine nozzle size and consult calibration chart for desired or instructed gallon per acre (GPA).
3.  Set pressure using relief valve.

CALCULATING THE SPEED

It is important to determine what speed the tractor will be traveling while spraying. Even if tractor has a speedometer, it is still recommended that speed be checked for accuracy. Perform the following steps to determine speed:

1.  Measure a 200 or 300-foot distance on a field or surface similar to where sprayer will be used.
2.  Drive tractor with half-full sprayer across measured distance at a constant and comfortable speed for spraying. There can be no changes in speed while measuring time.
3.  Determine amount of time, in seconds, it takes to travel the measured distance.
4.  Speed can be determined by entering data into the following equation: speed (mph) = (distance (ft) x 60) / (time (sec) x 88) or by consulting the following table.

NOTE: If using boomless nozzles, use the Boomless Nozzle Calibration Chart.

USEFUL FORMULAS

• GPA = Gallons per Acre
• GPM = Gallons per Minute
• MPH = Miles per Hour
• GAL/1000 sq ft = Gallons per 1000 sq ft
• W = Nozzle spacing in inches
• GPM Per Nozzle = GPA x MPH x W / 5940
• GPM Per Nozzle = GAL/1000 sq ft x MPH x W / 136
• GPA = 5940 x GPM (Per Nozzle) / MPH x W
• GPA = Gallons per 1000 sq ft / 0.023
• GAL/1000 sq ft = 136 x GPM (Per Nozzle) / MPH x W
• NOTE: Replace worn tips that have a streaky or uneven pattern.

DETERMINING NOZZLE SIZE AND USING CALIBRATION CHART

STANDARD / PRECISION BOOM

Tip Size| PSI| GPM

one nozzle

| GPA
2 MPH| 3 MPH| 4 MPH| 5 MPH
TF-

VP3

| 10| 0.3| 29.7| 19.8| 14.9| 11.9
20| 0.4| 41.6| 27.7| 20.8| 16.6
30| 0.5| 51.5| 34.3| 25.7| 20.6
40| 0.6| 59.4| 39.6| 29.7| 23.8

The spray nozzles on your sprayer are TF-VP3, which match up with the calibration chart. Refer to the calibration chart. Using tractor speed, nozzle size, and desired gallons per acre (GPA), find pressure (psi) necessary to achieve your GPA.

NOTE: Lower pressure settings will result in less spray drift.

EXAMPLE:

Assume tractor speed is determined to be 4 mph, nozzles are gray (TFVP3), and desired GPA is 20 GPA. The calibration charts show that you should set sprayer’s pressure at about 20 psi in order to apply 20 GPA.

NOTE

Optimum spray performance is achieved between 20-25 psi. When shutting off outer tips, use the regulator valve to adjust your boom pressure accordingly.

ADJUSTING THE SPRAYER PRESSURE

NOTE: All calibration needs to be done with clean water. Once correct pressure setting has been determined, the sprayer must be adjusted to that pressure setting. Before adjusting sprayer’s pressure, it is important to set tractor rpm at rate that was used to determine tractor speed.

•  Loosen lock ring and adjust knob to the desired pressure. Pressure is displayed on gauge.
•  Once desired pressure is achieved, tighten lock ring.
•  Sprayer is now calibrated.

OPERATING THE SPRAYER

NOTE: Ensure pressure is set to desired pressure from the calibration process. If not, follow steps 1-3.

•  Loosen lock ring and adjust knob to desired pressure. Pressure is displayed on gauge.
•  Once the desired pressure is achieved. Tighten lock ring.
•  Turn Selector lever to desired position, spray wand/nozzle or spray boom.

BOOM SECTION CONTROL

The Boom is divided into 3 sections of spray tips. Right, Center and Left. The Left and Right sections can be turned on and off by turning the corresponding in-line valve on the boom.

FT BOOM SPRAY WIDTH

•  30 inches – Both Left and Right sections OFF.
•  90 inches – Either Left or Right section OFF.
•  150 inches – Both Left and Right sections ON

USING THE SPRAY NOZZLE

CAUTION: Avoid Injury! DO NOT use spray gun while tractor is in motion.

1.  Turn the selector lever to the handgun position.
2.  Squeeze the handle to spray.
3.  Adjust mist to stream using lever.
4.  Spray guard can be adjusted by loosening the nut and sliding spray guard to desired position. The spray guard is intended to keep overspray off your hands.
5.  Flip handle lock forward to lock handle in ON position.

CLEANING SPRAY TIPS

1.  Remove spray nozzle from sprayer.

2.  Remove the spray tip and gasket from the spray nozzle.

3.  Remove the screen from the nozzle socket on the boom. Replace the screen if damaged.
   IMPORTANT: Avoid damage! Do not use a wire to clean the opening in the spray tip.

4.  Wash the screen and spray tip in a nonflammable solvent.

5.  Align the flat side of the spray tip with the flat on the opening of the spray nozzle, and install the spray tip into the nozzle.

6.  Install the screen into the nozzle socket on the boom.

7.  Install nozzle assembly on the nozzle socket.

CLEANING PUMP SUCTION SCREEN

1.  Remove tank cover.
2.  Locate suction screen inside sprayer tank.
3.  If necessary, unscrew suction screen, and clean with liquid detergent and warm water.
4.  If suction screen was removed, install on suction hose and positio  in lowest depression inside tank.
5.  Install and tighten tank cover.

MAINTENANCE

AFTER EACH USE

1. Fill the tank part way with water and pump the water out through the boom assembly and the spray gun. Use the spray gun to wash the inside of the tank.
2. Refill the tank about half full with water and a chemical neutralizer solution and repeat the cleaning instructions above. Follow the manufacturer’s instructions for disposal of all chemicals.

AS NEEDED

•  Periodically clean the tank strainer on the end of the intake hose.
• Remove the nylon swivel nut from the hose, pull out the screen, and flush it with water.
•  Periodically clean the strainers in the boom nozzles. Remove the nozzle, pull out the screen, and flush it with water.

WINTER STORAGE

•  Drain all water out of the sprayer, especially the pump and spray gun. These items are prone to damage from freezing temperatures.
•  Winterize the sprayer by pumping a 50-50 solution of water and R.V. antifreeze through the boom assembly and the spray gun.

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