Use of Crank Handle
Adjustment Example:
Let us plan wheat plantation with our FDD 3000 grain
drill having a working width of 3 meters:
Slide Covers:
to 2. position
Throttles:
to B position
Gears:
to 3. Position
In the Step 8 (when we rotate the crank handle by 20
complete turns), we scale the seeds dropped into the
test container.
Assume that 3.50 kg of seeds are dropped into the test
container.
We obtain the amount of seed to be spread per
hectare
when we multiply the amount of seed we found with the
coefficient of the machine we used as given in the table.
Accordingly:
Seed scaled X coefficient = seed to be spread per
hectare
3.50 kg X
115
(coefficient for FDD 3000) =
402.5
kg
With this adjustment our grain drill will spread
402.5
kg
seeds per
hectare.
***
If we had FDD 2500 grain drill having a working
width of 2.5 meters under the same conditions:
3.50 kg X
140
(coefficient for FDD 2500) =
490
kg
we would obtain the amount of seed to be spread
per
hectare
above.
If we desire to increase the spread amount in this case, we
should switch the adjusting arm on the variable-speed
transmission to a higher value and to a lower value if we
desire to decrease.
Note:
Before starting to rotate the adjusting arm, remove
the clearance on the arm and take care to finish the
turns at the initial point.
Summary of Contents for FDD 3000
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Page 103: ...Seed Calibration Quick Reference Guide To ensure accuracy always do a manual calibration test...
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