SPREADMAX EX750
7
Phone 0800 4 VOGAL (0800 486 425)
E:
W:
www.rataindustries.co.nz
INSTALLATION
CALIBRATION
To precisely calibrate the spreader carefully read and perform the following instructions.
1.
Place a measured amount of fertliser in the hopper e.g. 10kg (A).
2.
Choose an aperture setting to suit the rate required for the type of fertiliser being used, e.g.
Setting 6 (B).
3.
Obtain the desired travel speed (12 to 15kpH) and open the aperture to preset setting 6 e.g. 200
metres (C).
NOTE
Maintain a constant speed and coverage width, e.g. 8 metres (D).
4.
Check the effective spread coverage width, e.g. 8 metres (D).
5.
Measure the amount of fertiliser left in the hopper, e.g. 4kg (E).
6.
Then perform the following calculations:-
Measured amount of fertiliser initially loaded in hopper (A)
10kg
Deduct any remaining fertiliser (E)
4kg
Balance Used
6kg
Multiply width of spread (D)
8 metres
By the metres travelled (C)
x 200 metres
= 1,600sq. Metres
Divide 10,000 by the answer (1,600)
10,000 / 1,600 = 6.30
Multiply the sum (6.30) by the test quantity used (B) 6kg(B) x 6.30 = 37.80kg
The figure achieved is the sowing rate per hectare at the constant speed
selected for the test.
7.
Due to the variations of seeds and fertiliser types, it is recommended the test be carried out for
each product being used
8.
Record all results to ensure accurate speed rates for future reference and minimal wastage.
CALIBRATION SETTINGS
Calibrated at a speed of 20kph (kg/ha)
Setting
1
2
3
4
5
6
7
8
Urea
-
3
12
24
34
52
69
77
Super
-
-
-
11
25
43
62
100
DAP
-
-
4
16
36
60
76
106
Calibrated at a speed of 15kph (kg/ha)
Setting
1
2
3
4
5
6
7
8
Urea
-
5
16
32
46
70
92
103
Super
-
-
-
15
34
57
82
131
DAP
-
-
5
21
47
81
101
142
Note:
These calibrations are a guide only and should be checked to confirm accuracy.
