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19
Pt. No. 67304
Issue 1217
Machine
Row
Sowing
Size Spacing
Width (m)
15
Run
150
2.25
49
197
Hign
17
Run
130 2.21 50
200.5
Speed
15
Run
150 2.25
30.5
122.5
Low
17
Run
130 2.21 31
125
Speed
19
Run
150 2.85 39
155.5
High
21
Run
135 2.84 39
156
Speed
19
Run
150 2.85 24 97
Low
21
Run
135 2.84
24.5
97
Speed
23
Run
150 3.45 32
128.5
High
26
Run
130 3.38 32
129
Speed
23
Run
150 3.45 20 80
Low
26
Run
130 3.38 20 80
Speed
Number of Hand Crank Turns for Seed Rate Calibration
9
Weigh the seed collected during the test in kilograms.
10
Calculate the seed rate by multiplying the kgs previously
collected x 40 (1/40th ha method) or x 10 (1/10th ha
method) depending on requirement. If the resultant
calculation does not produce the desired seed rate use
the enclosed seed rate calculator disc to determine the
correct gearbox setting.
Refer
Use of Seed Rate Calculator
P 20
.
Suggestion
To be on the safe side and until confidence
has been gained with the method of calibration it is advisable to
conduct a second test at the newly determined gearbox setting.
11
Where a coated seed is used it is advisable to check the
calibration after 1 hectare as dressings can tend to create a
coating on the seed metering wheels thus changing the the
flowing properties of the seed which in turn alters the seed
rate.
Calculating Number of Hand Crank Turns for
Other Working Widths
1
For clutch output sprocket of 19 tooth and gearbox input
sprocket of 15 tooth (standard
High Speed
Setting
)...
Constant = 0.443
2
For clutch output sprocket of 15 tooth and gearbox input
sprocket of 19 tooth.(
Low Speed Setting
)...
Constant = 0.276
Crank Turns =
Area in Metre
2
x Constant
Working Width
For 1/40 Hectare (250 m
2
) Calibration
Seed Rate = Actual Seed Collected (kg) x 40
For 1/10 Hectare (1000 m
2
) Calibration
Seed Rate = Actual Seed Collected (kg) x 10
Speed Setting
Gearbox Clutch
Sprocket
Sprocket
High Speed
15 Tooth 19 Tooth
(Standard)
Low Speed
19
Tooth
15
Tooth
Turns for
1 / 40
Hectare
Turns for
1 / 10
Hectare
Speed Setting
(Refer Above)
fig 19
Summary of Contents for Enviro 740
Page 2: ......
Page 26: ...24 Enviro Seed Drill Calibration Notes ...
Page 33: ...31 Pt No 67304 Issue 1217 Enviro Seed Drill Maintenance Notes ...
Page 34: ...32 Enviro Seed Drill Maintenance Notes ...
Page 44: ...42 5 6 Enviro Seed Drill Wiring Lighting Kit ...
Page 52: ...50 ...
Page 56: ...54 ...
Page 70: ...68 1 1 2 3 3 4 4 5 6 6 7 7 8 8 9 9 10 10 11 12 15 Enviro Seed Drill Seeder Assembly ...