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The installation of the hydraulic system

2017-02-24 16:19:39


The installation of the hydraulic system

The installation principle:
1. Hydraulic components of tank truck in the assembly should be put an end to savage operating, such as: pressure will make parts deformation, especially with copper bar and banging on cylinder body, sealing flange, etc.;
2. Carefully check should be made for parts before assembly, assembly parts should be dipped in a little hydraulic oil, gently pushed;
3. When cleaning applications diesel, especially the sealing ring, dust ring, o-ring, rubber components, if use gasoline, make its aging lose elasticity, thereby losing sealing function;
4. It is prohibited to use twine, sealing tape, glue as sealing material, otherwise it will pollution system, and may result in system failure;
5. Must be used in clean flannelette or special paper.
(a) the installation of the hydraulic pump and hydraulic motor
1. Hydraulic pump and hydraulic motor shaft and the shafts of the drive shaft device of engine, installation of bad will produce noise, and vibration, thus to concentric installation, alignment should be within 0.1 mm, the axis of the dip Angle is not more than 1 °.In the process of installation to avoid hitting the shaft;
(2) the installation of oil cylinder
Oil cylinder when installation, first to check if the piston rod bending, especially for long stroke of oil cylinder.Piston rod sealed cylinder head bending will damage, resulting in leakage, crawl and failure, and the eccentric wear of the piston rod.
The installation of hydraulic line.
(3) the valve installation
1. Before installation, first with a clean kerosene or diesel (jiyong gasoline) cleaning rust inhibitor and other contaminants on the surface of the element, this may not be in the oil outlet plastic plug out, lest dirt to enter the body.
2. Install the seal ring groove for flash, burrs, sharp edges, and knock against grooves;
3, direction control valves should guarantee the axis of horizontal installation.
(4) the installation of piping
(1) card sleeve pipe assembly operation is as follows:
1. With grease lubrication card sets of seal cone and joint thread in vitro.
2. Insert the pipe connector body don't too hard;
3. Tighten nut torque wrench should be adopted, and when the moment suddenly began to increase, and 1/6 circle can satisfy the requirement of fastening nut and tighten.
(2) the hose installation requirements
1. Because of the hose under working pressure changes have 4% ~ + 2% scale change.Therefore, on the length is not allowed to have taut state;
2. The hose is not allowed to have distorted phenomenon;
3. In order to avoid the external surface of the hose and machine friction, strapping to several available hose bundles together;
4. To avoid sharp bends, joint assembly when bending radius should be greater than 9 times of hose diameter, tube bending center distance is 6 times the diameter of the joint distance.