Spreader Calibration - Exmark Z Turf Equipment Z-SPRAY Operator's Manual

Operation
Cleaning the Spreader
1. Drive the machine to a designated cleaning area.
2. Stop the spreader-sprayer on a level surface, leave
the motion control lever in the neutral position,
and turn off the engine. Engage the parking brake.
3. With the hopper empty, push inward on the ball
joint sleeve and pull off cable end to release the
gate lever. Push the gate lever inward to fully
open the drain hole.
1. Gate lever
2. Ball joint sleeve
4. Open the hopper gate to the maximum position
by pulling outward on the rate gate linkage. Rotate
the dial past the "9" position to the slot opening
and push in the linkage.
5. Using a garden hose, spray the inside and outside
of the entire spreader with clean water.
Note: Do Not use a power washer to clean the
machine. The high pressure water may force
residual corrosive materials into spreader-spreader
components.
6. When the hopper has been thoroughly rinsed and
drained, close the gate by reattaching the ball joint
sleeve to the gate lever.
7. Place the rate gate dial to a setting lower than the
maximum open position.
8. Allow the spreader-sprayer to completely dry
before the next use.
9. Lightly oil spreader components to help reduce
corrosion.
Figure 27
3. Rate gate dial and
linkage

Spreader Calibration

The spreader should be calibrated each time a new
material is used. The spread width ranges from 5–22
ft (1.5-6.7 m) and depends on the material particle
size, volume/density, and rate of travel.
Refer to the spreading charts along with
Determining the Distribution Pattern,
Determining the Effective Spreading Width,
and Calculating the Application Rate sections to
calibrate the machine.
Determining the Distribution Pattern
Operator supplied equipment: 15 shallow
collection pans and 15 graduated measuring cylinders
The most accurate method to measure the
distribution is to use shallow collection pans and
graduated measuring cylinders. In the example below,
15 shallow collection pans approximately 30 cm (12
inches) wide, 91 cm (36 inches) long, and 5 cm (2
g027034
inches) tall are used.
1. Make sure to allow ample driving distance before
setting up the pans to ensure the machine is
traveling at the desired spreading speed before
reaching the pans.
2. Place one pan in the center of the drive path.
Arrange the next two pans, one on each side,
far enough apart to allow ample room for the
spreader drive tires to pass over the center pan.
3. Place the remaining pans in a straight line as
shown in Figure 28 or Figure 29.
• For larger granule materials:
Space six additional pans, on each side, 12
inches (30 cm) apart (see Figure 28).
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