It is necessary to control the mounted and trailed equipment that is mounted on the tractor. Set univers. unit-hydraulic system to which the units are mounted separately and can be dismantled independently of each other. Manages various attachments because of this and is called universal.

It consists of a Buck or tank with a filter pump with a drive and a distributor tube for the overflow, Conn. interconnected by pipelines and hoses. Drive represented by a pair of gears and a gear clutch disconnection can be installed in the gear housing of the engine or the distribution of the rear plate Bldg. rear axle. In this case the pump is used to drive the PTO.
GBV drive pinion is always in mesh with the drive. gear that gets rot. of the switchgear. engine or PTO gear. The Head. the position of the gear coupling, or rigidly connected to the shaft of the pump either rotates freely on it. Produce switching on and off of the pump is only possible if the engine stops.
oil by a pump falls from the tank to the distributor and then to workers HZ, if the spool of the distributor is located in the working position (on the rise or slave descent. Equip.). The neutrons. position the oil is drained into the tank.
During operation of the dozer blade spool of the distributor may receive additional fourth position in which the cavity through the GC valve connected to tank. In this case, oil may flow besprepyadstvenno, and hinged bodies. equip. - to move under the influence of gravity
To interact with the atmosphere, necessary due to the different pace.. modes of operation, the HS is equipped with a breather. The pressure gauge is measured. In the case where the hydraulic tanks is used as the power elements of the hood, their complement trunnions for mounting the front hydraulic cylinders hinged system.
front hinged system includes HZ 2-sided action, standing on the power of the engine hood, sleeve VD and pipelines serving for fastening to the distributor and to each other.
In the hydraulic system there is also pipelines, whose findings are behind the tractor. Their fashionable isapolzovat for Port. with GC trailed machine. To allow convenient rotation rel. Port tractor. pomoschtyu made with flexible hoses E To avoid breakage and loss of oil at an arbitrary disconnected trailed machines in the pipeline, the supply oil from the tractor to the machine is discontinuous sleeve.
most frequently calculated on hydraulic control by 3 pairs and supplied GC 3 spool valve controlled manually.
In heavy equipment, such as a 250-DET, DET-250M, using elektrozolotnikovoe control HZ in cat th directional control valve spool is shifted to the desired position by means of a solenoid. Elektrozolotniki placed adjacent to the GC (for example in the trunk of a scraper) connecting them to the wiring control.
tractor hydraulics are used with bulldozers, scrapers or graders need to rely on frequent switching and variable loads.

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