DEUTZ-FAHR FL35-70HP Series, Руководство по эксплуатации, Страница: 159 / 417

Electrical system
158
The independent hydraulic lift can realize position control and draft control. The control lever of hydraulic lift is
used for lifting the implement and contoverturning working depth.
a) Position control:
It is used when the tractor equipped with a rotary implement performs rotary tillage, mowing, or harvesting, and the
draw bar is subject to tension. In the case of position control, the up-down displacement variation of implement is
directly proportional to the forward-backward displacement of the control lever. The more the control lever moves
forward, the more the implement moves downward. The more the control lever moves backward, the more the
implement moves upward.
b) Float control:
It shall be used when an implement equipped with a working depth limiting wheel is used. Placing the control lever
in the float control position can bring the hydraulic system to the draft control state, and the lift arm can thus swing
freely. The working depth of implement is controlled by the working depth limiting wheel. The tractor moves
following the terrain profile.
With an excavator, fork lift, or loader connected to the
tractor, in the case of float control, the cylinder can move
freely so that the bucket or fork can properly follow the
terrain profile.
Fig. 4-30
Notice:
When the hydraulic cylinder is used as a single-acting cylinder, the float control position can also
be used to lower the tiltable trailer body.