I-13
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
C. COMBINED OPERATION FOR POSITION AND
DRAFT CONTROL
In case of workings carried out under draft control
on not-homogeneous soils, during which excessive
implement penetration may occur, it is convenient
to use the combined position and draft control.
Have the implement penetrated into the ground and
search for the desired working depth in the way
described for the draft control.
When the desired depth is reached, gradually move
up the lever 1 till the lower links slightly start raising.
The rockshaft operates under controlled draft, but
at the same time it prevents the implement from
excessively penetrating into the ground causing a
not very uniform work, when coming up against a
less hard ground.
For raising and having the implement penetrated at
the end and beginning of each pass, acting on
position lever 1 only.
It is not correct to find the position
with the draft lever 2 because the lifting and lowering
of arms with this lever changes with the top link
position.
This can be on neutral -positive -negative - position
depending on the draft force, or to the changement
of force on the top link bracket depending on the
implement weight.
Hydraulics
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