Manufactured by EarthWay Products, Inc., EarthWay EV-N-SPRED brand spreaders are available for nearly every gardening situation. In addition to its commercial and professional spreaders, the EarthWay line includes hand-held spreaders, power spreaders and spreaders for small and large lawns. Broadcast and drop spreaders use EarthWay's setting formula. Check the label of the product you are using in the spreader for a list of brands that may include your EarthWay model. If the settings are not listed on the product label, you can figure them out yourself.
Hand spreaders are useful for very small areas, wet areas and anyplace that a rolling spreader cannot go. Look for the settings chart on the underside of these lower-capacity spreaders to determine how to set the unit to distribute fertiliser, seeds, salt for melting ice and other chemicals.
Before you can determine proper spreader settings, make sure your unit is properly calibrated. Calibrate your spreader before attempting to adjust the setting rates. If you have broadcast spreader with a rod-type adjustment lever, open the shut-off. Look at the control lever. If the forward edge is at #30, the unit is properly calibrated. To adjust the control lever, loosen the top and lower nuts a little at a time until you can move the lever to #30, then carefully re-tighten the nuts. If you have a broadcast spreader with a cable-type adjustment, and the control lever is not at #30, make sure the shut-off is fully open, then loosen the cable clamp screw on the underside of the hopper and move the control lever to #30. Re-tighten the cable clamp screw carefully. To calibrate a drop spreader, open the rate control handle to see if it is at #30. If not, adjust the control cable until it reads #30.
Calculate the square footage of the area to be treated. Divide the weight of the bag of fertiliser by the square footage and multiply the result by 1,000. For instance, dividing the weight of a 5-pound bag by a 5,000-square-foot lawn area, multiplied by 1,000, results in 1.0. This is the number of pounds of fertiliser you will deliver for every 1,000 square feet of lawn. If you have a 10,000-square-foot lawn, the 5-pound bag will deliver half a pound of fertiliser (5 divided by 10,000 multiplied by 1,000 equals 0.5) while the 10-pound bag will deliver a pound of fertiliser (10 divided by 10,000 multiplied by 1,000 equals 1.0).
For both broadcast and drop spreaders, the spreader setting to apply 1 pound of fertiliser, sand or other granular product for each 1,000 square feet of lawn is "11." To apply 0.907 Kilogram, set the spreader on "13." The setting for 1.36 Kilogram is "14." Set the spreader to "16" to dispense 1.81 Kilogram of material and "17" for 2.27 Kilogram of material. Set the spreader on "18" to apply 2.72 Kilogram of product, "19" to apply 3.18 Kilogram of product, on "20" to dispense 3.63 Kilogram of material, "22" for 9 pounds and, to apply 4.54 Kilogram of material, set the spreader on "23." To dispense 0.907 Kilogram of grass seed per 1,000 square feet, set the spreader on "13." Set the spreader on "14" for 1.36 Kilogram of grass seed, "16" for 4 pounds of grass seed and "17" for 2.27 Kilogram of seed.
Power Spreader Settings
To determine settings for any EarthWay 12-volt power spreader, first decide on the application rate. Divide the square footage to be treated by the weight of the bag and multiply by 1,000. Fill the hopper at least half-full of the material you plan to spread and record the weight. Cover a 50-foot test area and record the weight of the material used. Multiply the length of the test area (50 feet) by the spread width to reach the total area. Divide the weight you recorded earlier by the total test area and multiply by 1,000 to get the number of pounds per square feet actually dispensed. If the setting you used did not provide proper coverage, adjust the settings, reweigh the material and retest. Continue until the actual pounds per square foot dispensed equals the pounds per square foot needed.
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