Reduced Spread Width - Boqballe EX Manual

EX(W)
Trend
The HEADLAND spreading system, FROM BORDER, is developed
for considering the environment as much as possible – and
considering at the same time the demands for optimum yield.
•
Please consider that the distance between the tramlines must be equal to the spread
width.
•
If first tramline is placed 1 metre from border – the distance from border to next
tramline must be equal to the spread width + 1 metre.
See the above pattern:
In case it is necessary to reduce the spread width, for instance when spreading on a
narrower final bout in the field, or in connection with non rectangular parts in the field – the
spread width can be limited by either tilting the spreader negatively or by reducing the
PTO- rpms.
REDUCED PTO- speed:
• When reducing by 75 rpm. the NORMAL spread width is reduced by 2 metres.
•
At the same time the quantity must be reduced to the relation between the
NORMAL spread widht and the REDUCED spread width.
•
The reduction of quantity can be adjusted by increasing the driving speed
respectively, if this is easier.
Example:
NORMAL REDUCED
Spread Width Spread Width
12 metres
15 metres
18 metres
18 metres
REDUCED TILT- angle:
• If the tractor is equipped with hydraulic top link a reduction of the tilt-angle of
-2° will reduce the NORMAL spread width with 2 metres.
•
At the same time the quantity must be
reduced according to the above
instruction.
First tramline
Second tramline

REDUCED SPREAD WIDTH

PTO rpm.
NORMALspreading
PTO = 540 rpm.
10 metres (540 – 75) = 465
13 metres (540 – 75) = 465
16 metres (540 – 75) = 465
14 metres (540 – 150) = 390
=
= (18 + 1) =
Speed = 10,0 Km/h
(12/10) x 10,0 = 12,0
(15/13) x 10,0 = 11,5
(18/16) x 10,0 = 11,3
(18/14) x 10,0 = 12,9
32
1 metre from border.
19 metres from border.
Speed Quantity
Example: reduction
- 17 %
- 13 %
- 11 %
- 22 %
-
°