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1. Ensure the control handle is fully back (clutch disengaged, shutter closed).
2. To calibrate your spreader, place a measured amount of product (10 Kg) in the hopper.
1. Set the Shutter Stop Lever to the position (1-9) indicated in the Calibration Guides below. Hole position 9
(shutter fully open) is denoted by two holes vertically one above the other.
2. Tow the spreader at the desired speed and pull the control handle forward to engage the clutch and
open the shutter.
3. When the product has been exhausted, measure the distance covered and band width in metres. It is
recommended that this be done over an area where the product can be seen on the ground so that the
spread width can be measured.
4. Check the application rate using the following formula:
Rate (Kg/ha) =
5. Adjust either the Shutter Stop Lever or the speed of travel until the desired application rate is achieved.
Because of variations in product characteristics, speedometer calibration and driving speed, the information
in the calibration guide should be regarded as a starting point only. It is recommended that the spreader be
Average Speed (Kph)
Super phosphate
30% Potassic Super
Rye Grass
Magnesium Oxide
Magnesium Oxide powder is applied at a rate determined by the number of cows to be treated. When
spreading this product, calculate the weight of powder to be applied and apply this amount using shutter
setting 4 or 5. Because this product may set hard if left exposed to air, it must not be stored in the machine
even for a short time. Load the spreader only with the amount required to be spread and clean all traces of
product from the machine after use.
product applied (Kg) x 10,000
distance travelled (metres) x spread width (metres).
calibrated before use.
Calibration Guides
Urea or DAP Application Rate (Kg/ha), 10m Nominal Spread
Application Rate (Kg/ha) for given Lever Position
3
14
10
13
11
12
12
11
13
10
14
10
15
9
16
8
17
8
18
8
19
7
20
Other Products, Average Speed 10Kph
Rate
Product
(Kg/ha)
100
100
30
CALIBRATION
NOTE
4
5
6
52
85
138
47
77
125
43
71
115
40
65
106
37
61
98
35
57
92
32
53
86
30
50
81
29
47
77
27
45
73
26
42
69
Shutter Setting
(Lever Position)
7
8
3
8
7
8
9
165
167
171
150
151
155
138
139
142
127
128
131
118
119
122
110
111
114
103
104
107
97
98
100
92
93
95
87
88
90
83
83
85
Nominal Spread
(Metres)
12
10
4
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