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How to ensure your spreader is properly calibrated 

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STANDARD-OUTPUT Tray:

 Make sure the drop holes in the bottom of the hopper are 

FULLY OPEN

 when the Rate Control handle is on #30.  If the shut-off is not set correctly, 

please adjust Control Rod at the Pivot to position the shut-off for 

FULLY OPEN

 hopper position 

at #30 on the Rate Control Lever. 

Calibration Adjustment

Review the Control Lever position to confirm that it is set so that the rear edge of the Lever is 

resting at #30 (the stop) and the drop holes are open. If the shut-off is not properly positioned, 

you will need to adjust the Control Rod at the Pivot Bracket shown below.  

TIP:

 If your shut-off 

is not able to 

OPEN

 fully, loosen the bottom nut a few turns, then tighten the upper nut so that 

it allows you to push the 

shut-off fully open

.  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 above.

 

Control Lever Drag adjustment

If the Control Lever does not stay in position causing the setting rate to change without 

your intervention, you can adjust the drag on the Lever by tightening or loosening the nut 

shown to the right until the drag is appropriate.

If you have any questions regarding the operation or assembly of your spreader please call us at 800-294-0671 or 574-848-

7491 Monday - Friday 9:00am - 4:00pm Eastern, or visit www.earthway.com for more information

0

30

PIVOT

CALIBRATION 

POINT

GAUGE & 

LEVER

#0

#30

Lever

Drag

Adjustment

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