Master Manufacturing 7 Boom Kit - Manual (Page 3)

Wiring Harness
1.) Attach the new wiring harness with inline switch to the sprayer pump by pushing the
two terminal connectors together.
OPERATION
Using the boom nozzles
∞ 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.
5. Boom height and spray pattern
∞ Refer to the chemical label to determine the chemical mixture.
∞ See the tip chart to determine the pressure, speed and rate of spray to be used for your
application.
∞ Check the spray pattern with water only. Usually you can see the coverage better on a
solid concrete surface, such as a driveway.
∞ Raise or lower the nozzles so that you will have a good coverage pattern. If you can see
dry spots on the concrete surface you will need to raise the nozzles. Too much solution
in the pattern areas means you need to lower the nozzles. Generally the proper height
will be from 13 inches to 18 inches from the ground.
Operation and calibration
The nozzles on the boom will spray an 80” wide swath. The nozzle height is 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 bypass valve lever 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. Before spraying chemicals, fill the tank half full of
plain water to allow familiarization with the sprayer and to prevent waste of expensive
chemicals. After all calibrations have been completed, add water and chemicals to the tank.
Always follow chemical manufacturer’s instructions for mixing.