109
HYDRAULIC SYSTEM
F 155 F 156
INNER CIRCUIT CONTROL LEVER
Inner circuit control lever controls:
a -
lifting the implement into transport
position (max. lifting)
b - height adjustment of three point
hitch with implements when selected
position control and height adjust-
ment of tillage depth when selected
draft or mixed control
c - setting so called floating position
when working with implement equip-
ped with its own supporting wheel.
CONTROL MODE SELECTION LEVER
Lever has three positions marked by P, M, and D:
P -
Position control - Implement attached in the three point hitch is automatically
maintained in the constant height (position) with regard to the tractor.
M -
Mix control - is a combination of position and draft control. This is suitable
especially for tilling in soils with various resistance.
D -
Draft control - Implement attached in the three point hitch is automatically
readjusted depending upon the change of soil resistance.
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