Toro 34230 Operator's Manual page 28

Determining the Distribution Pattern
1. Set the spreader pattern control to the middle of
its travel; refer to .
2. Tap the impeller control switch up or down to
adjust the broadcasting pattern.
Record the motor-rotation speed here:
3. Drive the machine toward the test site at the
appropriate speed.
4. As you approach the center pan, pull the wide
distribution granular gate control to the open
position, and drive over the center pan.
5. Close the gate control, move motion-control
lever to the N
EUTRAL
engine, wait for all moving parts to stop, remove
key, and engage parking brake.
6. Label each graduated measuring cylinder to
correspond with the distribution pans (such as
L2, L1, Center, R1, R2); refer to
Figure 29.
7. 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.
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 half fill a graduated cylinder.
8. 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.
9. To adjust the spreader pattern, refer to the
Adjusting the Spreader Pattern (page
10. Fill the hopper half-full of the desired material
and repeat steps
a uniform pattern.
Determining the Effective Spreading Width
Use the effective width 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 2 graduated cylinder, one each side
of center, that contain 1/2 the measured amount
of the material that you observed in the center
graduated cylinder.
%.
position, shut off the
Figure 28
33).
1 through 9 until you achieve
3. Go to the two corresponding pans. Starting from
the outer edge, measure the distance between
left pan, across the center pan, to the outer edge
of the right pan, and record the measurement.
Record the effective spreading width here:
Preparing the Calibration Course for
Calculating the Application Rate
1. Determine a course length by dividing 93 m
(1,000 ft
you determined in
Spreading Width (page
length formula. Record the course length
here:
Calibration Course Length Formula
Formula
and
Example
Note:
measures 1.8 m (6 ft).
2. Measure and visibly mark the course length.
Ensure that you allow enough distance before
the starting marker so that the spreader moving
forward at full speed when crossing the first
mark of the course.
Calculating the Application Rate
1. Determine the area and amount of material that
you are applying to the job site and record those
amounts in the area and materials worksheet.
Record the job site area here:
Record the amount of job site material here:
2. Initially, use the recommended application rate
indicated in the
section or use the rate recommended listed on
the product manufacturer's label as a guide to
help determine the amount of material that you
would spread over a 93 m
Note:
In this example the calibration course is
1.8 m (6 ft) by 51m (167 ft).
3. Set the appropriate drop-rate cam setting; refer
to the Spreading Charts (page 32)
point.
4. Add material to the hopper.
Note:
In this example we added 11.3 kg (25
lb) of material.
28
.
2 ) by the effective spread width that
Determining the Effective
28); use the course
.
2 2
93 m (1,000 ft )
=
/ Effective width
measurement
93 m 2 (1,000 ft 2 )
=
/ 1.8 m (6 ft)
In this example the effective width
.
.
Spreading Charts (page 32)
2 (1,000 ft
2
Calibration course
length
51 m (167 ft)
2 ) area.
as a starting