Gason 5030 Series, Руководство оператора

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APPLICATION RATE
Page 16
05/14
Setting Application Rate
Introduction
The application rate for the spreader
can be set as per the charts at the rear of the
manual or by calibrating the spreader.
The charts estimate the flow
characteristics of the product to determine
the door setting. Different products flow at
different rates. For instance, urea flows
faster than more irregular shaped products.
The chart can only estimate the actual door
setting required for the various application
rates.
Application Rate by the Rate Chart
1. Determine the bulk density of the
product.
2. Estimate the bout width that the spreader
will be driven.
3. Refer to the Rate Charts at the rear of the
manual to determine the rear door
setting.
Note: Always use the lowest gear
possible at the highest door setting to
minimise the loading on the gearbox.
Example (Note. Examples in this section are
for demonstration only. Actual values may
differ from the charts in rear of book)
Shown in figure G20, urea that has a
bulk density of 0.75 tonnes per cubic metre
is to be spread to a 20 metre bout width at
80 kg/ha. By using the lowest gearbox ratio
possible, using the ‘Gear Box…Low’ chart,
and reading across the chart we can see that
the estimated rear door setting should be
119mm opening.
Fig. G20 Rate Chart example.
IMPORTANT: If the rate chart is the
only method to be used for setting the
rear door opening, a known weight of product
should be used in the spreader for the first
load to ensure the correct application rate is
being achieved.