Ransomes CT325, Инструкция для оператора

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20
OPERATION
OPERATING THE HYDRAULIC LIFT
SYSTEM
SINGLE LEVER HYDRAULIC LIFT SYSTEM
(STANDARD)
The hydraulic lift system provides accurate, smooth,
and instant hydraulic power for raising a variety of
compatible equipment whenever the engine is
running. The position control feature of the system
maintains the selected height or depth of three point
linkage equipment in relation to the tractor. When
the hydraulic lift control lever is moved to a higher
or lower setting in the quadrant, the system
repositions the equipment to a higher or lower
position and maintains the selected position, Figure
27.
Figure 27 - Hydraulic Lift System Control
TWO LEVER HYDRAULIC LIFT SYSTEM WITH
DRAFT AND POSITION CONTROL
(OPTIONAL)
If your tractor is equipped with the optional Two
Lever Control System shown in Figure 28, there are
two modes of Hydraulic Lift System operation -
Position Control or Draft Control - that can be
selected to satisfy operating conditions for the
implement being used.
WARNING: Make sure area is clear of
people before lowering equipment.
Figure 28 - Two Lever Hydraulic Lift System Control
(Draft and Position)
POSITION CONTROL
When operating in position control, there is a
definite relationship between the position of the
control lever in the quadrant and the position of the
equipment. The lever must be moved to change the
position of the equipment relative to the tractor. The
system will automatically maintain the equipment in
the selected position.
Position control provides easy, accurate control of
three-point linkage equipment that operates above
the ground such as sprayers, rakes, mowers, etc. It
also provides a uniform depth when using a blade or
similar equipment on level ground.
The position control lever (Front) is used to raise
and lower the equipment.
DRAFT CONTROL
When operating in draft control, the lift control lever
is used to adjust sensitivity draft loads. Once the
lever is positioned, the hydraulic lift system will
automatically adjust the depth of the equipment to
maintain an even load on the tractor as soil
conditions vary. The hydraulic system senses draft-
changes through changes in upper link
compression. The operation of the upper link draft
sensing system is described in the following
paragraph.