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Figure 23
Pan spacing for larger granule materials
1. Spreader moving towards
pans
2. Center pan
3. Collection pans (gap
between each)
•
For small granule materials:
Place six additional pans, on each side, with no gap
in between each pan
Figure 24
Pan spacing for small granule materials
1. Spreader moving towards
pans
2. Center collection pan
3. Lest collection pans (no
gap between each)
4. Set the drop rate cam to the recommended application
rate; refer to
Spreading Charts (page 29)
the appropriate drop-rate cam setting.
5. Fill the hopper approximately half-full with the desired
material; refer to
Filling the Spreader Hopper (page
6. Set the spreader pattern control to the middle of its
travel; refer to
Adjusting the Spreader Pattern (page
4. L1 and R1 collection pan
gap (spread apart to allow
machine to pass through)
5. 30 cm (12 inch) gap
6. Graduated measuring
cylinder
(Figure
24).
4. Right collection pans (no
gap between each)
5. L1 and R1 collection pan
gap (spread apart to allow
machine to pass through)
6. Graduated measuring
cylinder
to determine
7. Set the impeller speed to the appropriate broadcasting
rate.
8. Pull the wide distribution granular gate control to the
open position and drive the spreader, at the appropriate
speed, over the center pan.
Note: Repeat broadcasting over the test site several
times, moving in the same direction each time, until
enough material is dispensed to the collection pan to
fill a graduated cylinder half full
9. Label each graduated measuring cylinder to correspond
with the distribution pans (i.e. ...L2, L1, Center, R1,
R2...); refer to
10. One at a time, take a collection pan and dump the
contents into the corresponding graduated cylinder.
Record the amount of material collected and return the
pan to its location. Repeat this until all pan contents
have been emptied.
11. With the graduated measuring cylinder in the same
straight line as the pans, evaluate the volume of
material in each cylinder to determine the quality of the
distribution from the spreader.
12. To adjust the spreader pattern, refer to the
the Spreader Pattern (page
13. Repeat steps
achieved.
Determining the Effective Spreading Width
The effective width is used to determine the uniform
distribution of the material.
Note: The spreading width range is 6 to 8 m (20 to 25 ft).
1. After the spreader pattern is correctly adjusted,
evaluate the amount of material in the center graduated
measuring cylinder.
2. Locate the two tubes, one each side of center, that
contain 1/2 the measured amount of the material that
you observed in the center graduated cylinder.
3. Go to the two corresponding pans. Starting from the
outer edge, measure and record the distance between
left pan, through the center pan, to the outer edge of
the right pan.
Note: This measurement is the effective spreading
width.
Calculating the Application Rate
1. Determine the area and amount of material that you
are applying to the job site.
2. Determine the calibration course length as follows:
A. Initially, use the recommended rate indicated in
the
Spreading Charts (page 29)
rate recommended on the product manufacturer's
27).
label as a guide to help determine the amount
of material that you would spread over a 93 m
31).
(1,000 ft
26
Figure 23
and
Figure
24.
31).
5
through
12
until an uniform pattern is
section or the
2
) area.
Adjusting
2
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