Hydraulic Lift System - Shibaura ST329 Operator's Manual

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 run-
ning. 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 posi-
tion and maintains the selected position, Figure 34.
Figure 34 - Hydraulic Lift System Control
①Position Control Lever
②Adjustable Stop
③Remote Control Levers
TWO LEVER HYDRAULIC LIFT SYSTEM WITH
DRAFT AND POSITION CONTROL (Optional)
If you tractor is equipped with the optional Two
Lever Control System shown in Figure 35, there
are two modes of Hydraulic Lift System operation
－ Position Control or Draft Control － that can be
selected to satisfy operating conditions for the im-
plement being used.
WARNING：Make sure area is clear of
people before lowering equipment.
CONTROLS, INSTRUMENTS AND OPERATIONS
Figure 35 - Two Lever Hydraulic Lift System Control
(Draft and Position)
POSITION CONTROL
When operating in position control, there is a defi-
nite relationship between the position of the control
lever in the quadrant and the position of the equip-
ment. The lever must be moved to change the
position of the equipment relative to the tractor.
The system will automatically maintain the equip-
ment 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 draft control
lever is used to adjust sensitivity to draft loads.
Once the lever is positioned, the hydraulic lift sys-
tem 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
① ① ① ① Position Control Lever
② ② ② ② Adjustable Stop
③ ③ ③ ③ Draft Control Lever
④ ④ ④ ④ Remote Control Lever
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