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6.11 HYDRAULIC TRACK MARKERS
The track marker arms are adjustable by:
-
LENGTH
, horizontal distance between the disc and the
outermost coulter.
-
INCLINATION
of the discs, penetration angle.
Fig. 6.90
KEEP THE HYDRAULIC LINES IN GOOD CONDI-
TION. PRESSURISED OIL CAN PENETRATE THE
SKIN AND CAUSE VERY SERIOUS INJURIES.
NEVER STAND WITHIN THE TRACK MARKER'S
DEPLOYMENT RADIUS.
THE TRACK MARKERS MUST BE FOLDED WHEN
TRANSPORTING THE SEED DRILL.
To calculate the horizontal distance BETWEEN THE TRACK
MARKER DISC AND THE OUTERMOST COULTER (B, Fig. 6.91),
apply the following formula:
Fig. 6.91
A x (no. of co 1) - C
B=
2
WHERE
:
A=
distance between the coulters' centre points.
B=
horizontal distance between the disc and the outer-
most coulter.
C=
tractor width.
THE DISTANCE
B
CALCULATED WITH THE ABOVE
FORMULA IS THE ADJUSTMENT LENGTH TO THE
CENTRE OF THE TRACTOR WHEEL (FIG. 6.91).
MAKE THE CALCULATION WITH THE MEASURE-
MENTS EXPRESSED IN CENTIMETRES.
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