Calibration Instructions
1)
Set the rate control plate to the “E” position.
2)
Push the main shutoff lever to the OPENposition.
3)
Insert the calibration key vertically into the center
port hole, as shown in the accompanying diagram.
4)
If the calibration key fits snugly, the spreader is
properly calibrated. If not, continue with steps 5-12.
5)
Loosen the rate control knob and slide the rate
control plate all the way to the left.
6)
Insert the calibration key as described in Step #3.
7)
Pull the main shutoff lever back to ease the shutoff
plate against the calibration key. Use the main shut
off leverto hold the calibration key in place.
8)
Slide the rate control plate to the right until it comes
in contact with the protruding end of the rate control
rod.
9)
Tighten the rate control knob.
10)
Remove the calibration key and pull the main shut
off lever to the closed position.
11)
Loosen the nuts securing the rate control pointer
and slide the pointer so that it centers on the “E”
setting of the rate control plate.
12)
Re-tighten the nuts on the pointer.
“E” Position
Pointer
Rate Control Plate
Calibration Key
calibration
depth
Your professional spreader has been factory calibrated. For best results, occasionally check
calibration and adjust if necessary.
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