FIELD: construction, pipeline.
SUBSTANCE: invention pertains to hydraulic actuators of carrying and lifting machines, namely, to front loaders handling supplies and construction materials in the scoop on construction sites and off-the-road. Protection device of the hydraulic actuator of a front loader contains a heavy hauler, working equipment, boom hydraulic cylinders and, at least, one balancing cylinder, head end whereof is connected with a gas cylinder. Accumulator, reverse-flow valve and an adjustable choke are switched to the head ends of the boom hydraulic cylinders. Valve "OR" is installed into the hydraulic line connecting distribution unit with rod ends of the boom hydraulic cylinders.
EFFECT: protection of hydraulic actuator from the negative effect as on working equipment lifting - down casting as in wheels movement over abrupt supporting surface.
4 dwg
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