Jumil JM 2640 EX PD, Руководство оператора

Страница: 24 / 51

Manual de Instruções JM 2640 EX PD
24
8.8 - Coupling to the tractor
The system of three points of the hydraulic of the tractor makes possible
that just an operator can make the coupling of the implement to the tractor;
it is a quite practical system, being the system components (arms, tighter,
threads of adjustment of the length of the arms, etc.,) are working well (
see preparation of the tractor). For the coupling, choose a plane surface and
with space for maneuver.
Align the back of the tractor with the area of coupler of the planter and
reverse, (it should be with the motor in slow gear) getting close to the planter,
until that the rotula of the left arm of the tractor is aligned with the left pin of
the planter. Stop the tractor, maneuver the lever of the hydraulic system until
the rotula to be in the same height, place the tractor in neutral point, drive
the handbrake, leave the tractor and place the pin of the planter in the rotula
of the tractor, fastening it with the respective parallel pin. After, tie the arm of
the third point. For that, it is possible that there is need to modify the length
of the same, acting on the nut of contrary threads. However, there is to be
careful in fasten the tips, in way the one that the extremities stays halfway
of the center, in other words, that a tip is not shorter than the other.
After tying the arm of the third point, if the pin of coupler of the planter
is far away from the rotula of the arm of the tractor, acting on the arm of the
third point (increasing or decreasing its length) we will get to move the planter
to the perfect alignment with the rotula of the tractor.
If the distance to correct goes very big, that is sign that was not made
a convenient alignment of the tractor with the implement. When aligning the
pin with the rotula of the arm of the tractor, it can happen that the rotula is
higher or lower than the pin. Like this, you will have to correct acting on the
length of the arm. The support of the right arm always has possibility of
modifying the size, usually with a driven lever of one device that acts on the
thread. This possibility of the right arm to alter the size is that determines
that the coupling always begins for the left side.