Gregoire Besson SP9 COMPACT, Instruction Of Utilization And Maintenance

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Operation manual SP 9 - Compact
CHAPTER III – DESCRIPTION OF PLOUGH – Page 9
Every cylinder is connected with the same hydraulic accumulator (32).
The task of the hydraulic accumulator (32) to provide suitable elasticity when the part impacts the
obstacle and deflects around the axle-journal.
Inside the accumulator there is a flexible membrane (33) which separates the hydraulic olaj (34)
coming from cylinders, from nitrogen placed under the pressure (35). The characteristic of the gas
nitrogen is that it can be compressed. The gas is compressed in the plant under the certain pressure
and cannot be changed.
Anti-bouncing affect can be got by hydraulic oil pressure (34).
With the injection and the extraction of the oil into and out of the security hydraulic circuit the
flexible membran becomes deformed, In this function nitrogen more or less coagulates.
When the plough head comes across the obstacle the turning of the mechanic disengaging
part causes compression. Then the surplus of the oil is absorbed by the accumulator
producing the bouncing.
After the overcoming the obstacle the over pressure in the accumulator gets back into the
cylinder and makes the plough heads go back on the soil.
The adjustment of the securities disengaging power is changeable. It is performed with the help of the
filler (36) and can be adjusted by manometer (37).
If the variably possibilities of the manometer are not enough,
optionally there are two ways to increase the security
disengaging power:
With the increasing of the security cylinder
diameter,
With the usage of the industrial nitrogen
adjustment accumulator.