BAG0172.7 02.20
9.4 Automatic hydraulic stone release
When the plough body meets an obstacle (stone), the plough beam
element turns upwards through the ball joint. When the obstacle has
been passed, the plough beam element falls back into original
position. The whole procedure occurs without having to stop the
tractor.
(1) Hydraulic cylinder
(2) Pressure accumulator
(3) Stop tap
(4) Hydraulic connection
(5) Pressure accumulator valve
Keep clear of the plough beam element and hydraulic
accumulator during operation ! The system is under high
pressure.
RISK OF ACCIDENT!
Prior to assembling or disassembling the hydraulic stone release
(cylinder, accumulator, hose lines, tubes, etc.), reduce the system
pressure completely using the pressure control tube (system is under
high pressure).
Risk of overturning!
Before reducing the system pressure, the plough must be coupled or
suitably supported.
When triggered, the plough body presses a piston into the reservoir
via the hydraulic cylinder. The gas is compressed, and after passing
the obstacle, it automatically moves the body back to its initial
position.
Where required, the trippin
g force can be set via the tractor hydraulics
and read from the pressure gauge.
To protect against damage, the stone release must be fitted with a
shear bolt.
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