PC120 PC200 PC220 PC300 Excavator Hydraulic Pilot Lock Safety

 
 
PC120 PC200 PC220 PC300 - 6 Series Excavator Hydraulic Pilot Lock Safety Lock
 

Specifiion

Description
 
Hydraulic lockHydraulic lock is a phenomenon that can occur on piston engines that have downward-pointing cylinders, that is, cylinders orientated such that the piston is moving down during the compression stroke. All radial engines have some cylinders that are pointing downwards and are, therefore, susceptible to hydraulic lock. After a radial engine has been shut down for a period, oil may drain into the combustion chambers of the lower cylinders or accumulate in the lower intake pipes, ready to be drawn into the cylinders when the engine starts. As the piston approaches top dead centre (TDC) of the compression stroke (both valves are closed at this point), the oil, being incompressible, can stop the piston movement . If the crankshaft continues to rotate then damage to the engine will occur – this could result in a cylinder being blown out, a bent or fractured connecting rod, or damage to the gudgeon pin. This phenomenon is known as ‘hydraulic lock’.
 

Characteristic
 
1.the tilting device includes a rotating bracket connected to one end of the safety lever, and is hinged at a hinge axis, being extended; and a spring bracket hinged equally at the hinge axis below the rotating bracket.
2. the rotating bracket has an extended end of a designated length, and to a guide pin in opposite direction of the end.
3. the tilting device further includes a first cylinder rotatably installed on the end of the rotating bracket.
4. the control box further includes a rotation stopper for controlling a rotation interval of the back and forth rotation of the end of the rotation bracket.
5.safety lever system in an excavator cab in which a safety lever is positioned in front of the driver's seat so that a driver's seat access space can be secured Is to provide.
 

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