construction machinery closed hydraulic system installation and commissioning

A large number of construction machinery, especially imported equipment, hydraulic drive and hydraulic drive is very common, such as tunnel boring machines, large tonnage transported beam cars, cranes, lifts truck, paver, excavators, b ulldozers and other . Hydraulic closed loop low energy consumption, compact and easy to achieve continuously variable transmission, has been widely used in the hydraulic system, but compared with the open loop, closed loop installation and debugging difficult to have a high and technical requirements, the following closed loop installation and commissioning of the main points to do a brief summary.
Before You Install hydraulic fittings
1.1 to maintain the cleanliness of the system components: carefully check the pumps and motors as well as all system components: fuel tank, piping, valves, fittings, radiators, etc., to ensure that no damage, pollution-free, valve block processing parts of the chip to clean up and cleaning.
1.2 hydraulic oil clean: Note the degree of contamination and humidity of the oil, to avoid any dirt into the tank. Fuel must go through the filter inside the tank is coated with the c oating must be compatible with the use of oil.
2 implementation of the installation process:hydraulic adaptors
2.1 to prohibit the use of force acting on the hydraulic system to avoid piping systems and components to withstand lateral forces and internal stress, we must pay attention to protect the piping system.
2.2 prohibit the use of twine, adhesive used as sealing materials, otherwise they will contaminate the system, and may result in system failure.
2.3 the right hose layout to avoid torsion of the hose, hold back the strength, abrasion and bump.
2.4 system, the connection must meet the recommended standard, all system piping to be joined and sealed to be reliable, no leakage phenomenon.
3 put into operation, commissioning hydraulic adapter fittings
If the hydraulic system requires the installation has been completed, you can begin to put into operation, the hydraulic system debugging. Before commissioning the hydraulic tank to join as much as possible and clean the hydraulic oil to fuel injection pump, motor shell, the primary system piping, mainly due to the viscosity of the oil, pipelines, pump suction line did not break out the air, plus debugging offline installers within 30 seconds the speed of the diesel engine from the startup surge speed to maximum speed, and fill the pump early wear and tear is inevitable.