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M2(W) / M3(W) / M6W
27
HEADLAND-spread width can be mentioned as 3 categories:
Rate reduction
MINIMUM
Minimum quantity
over border
-
- 20 %
MEDIUM
Medium quantity
25-70% at border
-
- 10 %
MAXIMUM
Maximum quantity
to border
-
- 0 %
So it is possible by the PTO-speed to decide the character of the HEADLAND spreading
(See HEADLAND spread patterns TO BORDER
,
and
).
SPREAD WIDTH
[Metres]
MINIMUM
-20%
PTO-(rpm.)
MEDIUM
-10%
PTO-(rpm.)
MAXIMUM
PTO-(rpm.)
12
metres
200
rpm.
250
rpm.
300
rpm.
15-16
metres
250
rpm.
300
rpm.
350
rpm.
18
metres
300
rpm.
350
rpm.
400
rpm.
21
metres
350
rpm.
400
rpm.
450
rpm.
24
metres
400
rpm.
450
rpm.
500
rpm.
28
metres
See the instruction included with the E6-T & E8-T vanes.
32
metres
36
metres
42
metres
If full coverage must be achieved to border up to 24 metres, it is possible to increase
MAXIMUM PTO rpm. by 50 rpm.
When reducing the PTO speed – and thus reduction of the spread width – the
application rate must be reduced accordingly in order to achieve a constant rate
(Kg/Ha):
The quantity can be reduced either by:
•
reducing the application rate direct by the % adjustment of the CALIBRATOR -
or
•
increasing the forward speed according to the following chart.
If the application rate is reduced by increasing the forward speed, the below chart can be followed.
Forward speed
HEADLAND
spreading
+ 20%
Forward speed
HEADLAND
spreading
+ 10%
Forward speed
HEADLAND
spreading
+ 0%
Forward speed
NORMAL
spreading
MINIMUM
MEDIUM
MAXIMUM
8,0
Km/h
9,6
Km/h
8,8
Km/h
8,0
Km/h
10,0
Km/h
12,0
Km/h 11,0
Km/h 10,0
Km/h
12,0
Km/h
14,4
Km/h 13,2
Km/h 12,0
Km/h
14,0
Km/h
16,8
Km/h 15,4
Km/h 14,0
Km/h
Example:
Required pattern is the
MEDIUM
HEADLAND spread pattern
Forward speed for NORMAL spreading is
8,0 Km/h
Forward speed for HEADLAND spreading must be increased to
8,8 Km/h