Hello, to solve your question about what number to use to calibrate your broadcast spreader, please use the step-by-step instructions below:
1. If you don't already know the square footage of your lawn, please walk off or measure, multiplying the length by width. For example, my lawn is 100 ft wide by 100 ft long; this equals 10,000 sq. ft.
2. Use this figure (30,000 sq ft) to determine how much fertilizer, insecticide, fungicide,apply etc., to purchase and apply.
3. To calibrate the spreader for applying your product at the correct rate, first weigh and hold out an amount of product to cover a pre-determined test area; for example, enough for a 200 sq ft space.
4. Because most lawn fertilizers are packaged to cover areas in 1000 sq ft increments, it's easy to figure how many 1,000 sq ft applications you need for your lawn.
5. Set your spreader to 3 and measure 1/5 of the recommended application on your product, to cover a 200 sq ft area.
6. Use your spreader to cover this 200 sq ft area.
7. If there is product remaining in the hopper after walking this 200 sq ft area, increase the setting number and move to another test area, repeat steps 5 and 6.
8. If there wasn't enough product to cover the test area, back the number down, move to another test area, and repeat steps 5 and 6, until you finish with product and lawn test area at the same time.
9. Remember to never leave product in your hopper because many chemicals are corrosive and can destroy the moving parts, making the spreader inoperable.
I hope this helps!
On my EZ Broadcast Spreader, it says to set the micrometer to 4 1/2 and then when you squeeze the lever, the line on the shutter should line up with the edge of the opening.
The setting for calibration is micrometer to 4 1/2 or 5. You can checkout the guide on https://settingsguide.com/republic-ez-broadcast-spreader-settings/
The setting is 4 1/2...To find what number on the spreader correlates to lbs/sq ft, take the lb/sq ft on the product packaging and multiply by .97. That number is the setting on the dial.
I am sorry for the problems you are experiencing with your EZ Spreader. Unfortunately, due to the age of the spreader, we no longer have replacement parts available. Please give Scotts a call at 800-543-8873 so we can help pick out a new spreader for you. Hilary @ Scotts
You may check the calibration by using the following directions. First, adjust
your micrometer setting to 2. Squeeze the trigger against the handle. The
calibration line is a small, raised line embossed on the top of the spreader's
shut-off plate. With the micrometer set at 2 and the trigger squeezed against
the handle, the calibration line should be aligned with the back edge of the
hopper opening.
To adjust the alignment, use a small wrench to turn the
black calibration screw at the lower end of the control wire leading from the
micrometer rate setting barrel. Adjust the screw until the calibration line and
back edge of the hopper meet. If you have any difficulty checking the
calibration, contact us and we will be happy to help walk you through the
adjustment.
When you are not pulling on the trigger handle, the cable
should be loose. When you pull on the handle, the cable becomes taut and the
shutoff plate slides open.
If you need further assistance feel free to contact us @ 1-800-543-8873
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