Grainsaver Kit - Silvan Australia

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Installation Pressure Hose By-pass Hose Diaphragm Inlet Filter Pump Pressure Gauge Power On/Off Switch Suction Hose Pressure Regulator Pump Baseplate 12 volt D.C Electric Motor Electrical Lead Spray On/Off Valve Spraybar Spraybar Mounting Clips Spray Nozzle GRAINSAVER OPERATING FEATURES Attaching the Spraybar The spraybar should be installed at the lower end of the auger close to the hopper. Most of the mixing of chemical and grain will then take place over the lower 100 to 150 cm of the auger. Align the spraybar with the centreline of the auger and mark the position of the two nozzles, they are 50 cm apart. Drill a 25 mm hole through the auger tube at each nozzle location. Attach the two spraybar mounting clips to the auger so that the spraybar will be positioned over the two nozzle holes. The type of mounting will depend upon the particular auger. Care should be taken to ensure that attaching hardware does not protrude inside the auger tube. Once the mounting clips have been positioned on the auger the spraybar can be attached or removed by snapping it into, or out of, the clips. Positioning the Pump The pump can be installed in any convenient location. The baseplate has four holes for attaching hardware if it is necessary. If the unit is to be left outside ensure that it is covered after use to prevent moisture entering the electric motor. Fit the hoses as shown in the above diagram using the hose clamps provided. Connect the electrical lead to a 12 volt battery ensuring that the connections are of the correct polarity. Red is positive and black is negative.
Operation Before using chemicals read the chemical manufacturer's instructions. Follow all instructions and wear the recommended protective clothing and safety equipment. Close the valve on the spraybar so that the pump will start in by-pass mode. The valve is closed when the handle is at right angles to the bar. Insert the suction hose into the container of chemical and start the pump with the motor switch. Allow the unit to run for about one minute at low pressure with the spray bar valve closed before commencing spraying. The pump does not require priming, as it is a self-priming type. To commence chemical application open the spraybar valve and allow the unit to spray for few moments to clear all air from the delivery line, then adjust the pressure with the pressure regulator to obtain the required application rate. Refer opposite for information on calibrating the sprayer. Do not set the pressure regulator to a pressure beyond the pump’s maximum pressure (310 kPa) as this will cause the pump to pulsate on and off continuously, causing premature failure of the pressure switch and shortening pump life. After use, drain unused chemical from the suction hose and flush the system by inserting the suction hose in a container of water and running the pump until clean water is sprayed from the nozzles. The inlet filter should be cleaned after each season of use. No other routine maintenance is required. Calibrating the Sprayer 1. Calculate the output of the auger, in tonnes per hour. This can be done by adding a known weight of grain to the hopper and measuring the time to empty. Use the following formula: Output mass of grain (kg) x 3.6 (tonnes/hr) time to empty (seconds) 2. Refer to the chemical label to obtain the recommended application rate for the type of grain being treated, in litres per tonne of grain. 3. On the Flow Rate Chart identify the chemical flow rate that is required, in litres/minute. This will be shown at the intersection of applicable Grain Output column and Chemical Application Rate row. If the exact Grain Output and Chemical Application Rate are not shown on the chart either interpolate the answer from the nearest column and row, or calculate the required rate using the following formula: Required Grain Chemical Flow Rate (tonne/hr) x (litre/tonne) (litre/min) 60 4. On the Nozzle Chart identify the flow rate closest to that obtained from step 3 above. The flow rates shown are the combined output for both nozzles. Note the nozzle number that should be fitted to the spraybar and the operating pressure. The nozzle number is shown at the top of the column and pressure at the LH end of the row. The four largest nozzles TP8006E to TP8015E are supplied with the <strong>Grainsaver</strong>. The smaller nozzles are available from your <strong>Silvan</strong> dealer. To achieve the exact flow rate required it might be necessary to use a slightly higher or lower pressure than that shown on the chart. 5. After fitting the required nozzles check the chemical output rate before refitting the spraybar to the auger. Run the pump for 30 seconds and collect the output from each nozzle in a container then pour the contents into a measuring jug. Double the measured volume to obtain the flow rate in litres/minute. 6. If the rate requires adjustment, increase the pressure to increase the rate or decrease it to reduce the rate. Re-measure the output as in step 5 and repeat the process if necessary until the required flow rate is achieved. 7. Record the details for future reference.
Page 1 and 2: Operator’s Manual MANGS01 - Rev C
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Grainsaver Kit - Silvan Australia

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