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Settings for your Earthway Broadcast Spreader

EV-N-SPRED ® Calibration Techniques

How to ensure your spreader is properly calibrated

Rod Type Adjustment

  1. Open the shut-off so that the drop holes are completely open as illustrated.
  2. Review the Control Lever position - if it is set so that the forward edge is at #30, you are calibrated. If not you need to adjust the control rod at the pivot bracket shown in Fig 1.

If your shut-off is not able to open fully as in step #1. Loosen the top nut a few turns, then loosen the lower nut so that it allows you to push the shut-off open fully. Next tighten each nut so that they contact the pivot bracket without moving it, and then carefully tighten each nut fully so they do not loosen during use. Recheck adjustment
as outlined in #1 above.

If your shut-off is able to open fully as in step #1, but the Control Lever is not at #30. Loosen the top nut a few turns, then loosen the lower nut so that it allows you to push the Control Lever to #30. Next tighten each nut so that they contact the pivot bracket without moving it. Carefully tighten each nut fully so they do not loosen during
use. Recheck adjust as outlined in #1 above.

Cable Type Adjustment

  1. Open the Control Lever so that the shut-off and drop holes are completely open as illustrated above.
  2. Review the Control Lever position so that the indicator is pointed to #30, if it is your calibration is correct. If not you need to adjust the control cable at the cable clamp on the underside of the hopper as shown in Fig 2.

If your shut-off is not able to open fully as in step #1. Loosen the cable clamp screw slightly so that you can slide the outer cable out so that the shut-off is fully open. Next tighten the cable clamp screw securely. Recheck adjustment as outlined in #1 above.

If your shut-off is able to open fully as in step #1, but the Control Lever is not at #30. Loosen the cable clamp screw slightly so that you can slide the outer cable in so that the Control Lever opens to #30. Next tighten the cable clamp screw securely. Recheck adjustment as outlined in #1 above.

Establishing a Setting Rate

  1. Use Chart 1 to estimate the number of LBS/1,000 square feet of
    coverage (Example: 20 LB bag with 10,000 square foot coverage =
    2.0 LBS/1,000 square feet)
  2. Find the closest LBS/1,000 square feet in Chart 2 that you estimated using Chart 1 (Example: 2.0 LBS/1,000 square feet = Spreader Setting of 13)



Metric Rate Setting

Determining a Setting Rate

Use chart below to determine the Setting Rate based on Grams/Square Meter of coverage as directed on the bag

All spread widths are determined by the particle size and density. The chart below will give approximate spread widths.