Master Manufacturing 40/60 Gallon Utility Sprayer - Manual (Page 3)

2.) Refer to vehicle manual to locate battery and attach wiring harness leads to battery. Ensure Red lead
attaches to Positive (+) side of battery and black lead connects to Negative (-) side of battery.
Spray Gun & Gauge
1.) Attach spray gun to manifold by pushing over 3/8” hose barb and fasten with hose clamp (PN SHC-
F). Figure #1.
2.) Apply thread sealant to gauge threads and screw gauge into manifold.
OPERATION
Using the 10’ boom
∞ Four things must be considered before spraying with the boom.
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 mixture.
∞ See the tip chart to determine the pressure to be used. The chart will also show the speed used when
spraying.
∞ Open the valve lever to the boom nozzles.
∞ Check the spray pattern. Usually you can see the coverage better on solid concrete surface, such as a
driveway.
∞ Raise or lower the boom to achieve a good coverage pattern. If you can see dry spots on the concrete
surface you will need to raise the boom. Too much solution in the pattern areas means you need to
lower the boom. Generally the proper height will be from 13 inches to 18 inches from the area to be
sprayed.
Operation
The nozzles on the boom will spray approximately a 120” wide pattern. The nozzle height should be set
approximately 15” above the object being sprayed.
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). The pressure can be set by running the sprayer with the boom nozzles
“ON” and then by adjusting the garden hose valve lever (valve with hose returning to tank) until the gauge
reads the desired pressure. Notice that the pressure will go up when the garden hose valve is slowly closed.
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. At 10 PSI the pattern begins to break up and at 40 PSI you may notice some drift.
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.
After all calibrations have been completed, add water and chemical to the tank. Always follow chemical
manufacturer’s instructions for mixing.
CLEANING & STORAGE