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Spreader Preparation
The spreader to be tested should be properly maintained and in good mechanical
working condition in accordance with this manual. All damaged or worn parts should be
replaced prior to completing the spread pattern test. Spinner discs, blades, and material
divider should be free of any material build-up or rust.
Set the spreader gate according to your application rate. Make sure to check to see if the
gate is level and that the indicator reads the actual height of the gate. Fill the hopper
with material to be tested and run the spreader so that the material reaches the end of the
chain.
Testing Procedure
Select an area for testing approximately 120' x 400', which has a slope of less
than 2 degrees.
Place a plastic grid into each of the 21 collection pans. Position the 21 pans on 6'
centers with the long side parallel to the direction of travel.
If possible perform test when wind speed is less than 5 MPH. If wind speed is
greater than 5 MPH, testing must be completed while spreading parallel to the
wind direction.
Prior to conducting a pan test, be sure to run the spreader and obtain normal
operating temperature of the hydraulic oil.
Before driving across pans, operate the spreader long enough for the rate to level
out and spinner speed to remain constant.
Spreader must be driven over the pans in ONLY ONE DIRECTION.
Position spreader at the beginning of the course so that the spreader
will straddle the center pan. Be sure to set gate for the desired
application rate according to this manual.
Drive the spreader completely through the course at normal operating
speeds.
10 - 3
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