Date：2016-02-18 09:05:07    Viewed：

A small hydraulic press disassembling procedures

1. Remove the small hydraulic pressure oil cylinder former, should make the unloading hydraulic circuit, otherwise, when the tubing with cylinder connected to loosen, the circuits of high pressure oil quickly. Hydraulic pressure when the back pressure relief should be loosen the place such as overflow valve handwheel or tensioner, make the pressure oil unloading, then cut off the power or cut off power supply, make the hydraulic equipment to stop running.

2. Remove the top of the piston rod thread should prevent damage when, oil mouth screw and piston rod surface and the inner wall of the cylinder liner, etc. In order to prevent the piston rod and elongated bend or attachments, when placed application stow-wood bearing equilibrium.

3. Remove the small hydraulic press is according to order, for a variety of hydraulic cylinder structure and size is not the same, disassembly sequence is also slightly different. Generally two cavity of the oil drain oil cylinder, and then remove the cylinder head, finally remove the piston and piston rod. When removing the cylinder head of hydraulic cylinder, the inside connection card key or card card key ring to use special tools, banning the use of a new; For flange end cover must be screwed out, do not allow the hammer or hard to pry. When piston and piston rod is difficult to take, not to play, should first find out the reason and then to remove.

4. Remove and try to create conditions to prevent the hydraulic cylinder parts are around the pollution of dust and impurities. When, for example, remove, should as far as possible in a clean environment; After all the removed parts to use plastic cover, do not use cotton cloth or other work covered with a cloth.

5. Small hydraulic pressure oil cylinder disassembly after careful check, can continue to use to determine which parts, which parts can be repaired before use, the parts must be replaced.

6. All parts must be carefully clean before assembly.

7. A small seal in all parts of the hydraulic pressure machine installed correctly.

8. Thread connection should be using a special wrench, tighten the torsional moment should accord with a standard accord with a standard to ask.

9. After the piston and piston rod assembly, must try to measure its alignment and whether of straightness error in length.

10. After the assembly, piston components should be no block and mobile resistance unequal phenomenon.

11. A small hydraulic pressure oil cylinder installed on the host, in and out of the oil joint must be combined with good sealing ring and tighten, prevent leak.

12. After assembled according to the requirements, shall be carried out under the condition of low pressure reciprocating motion, several times to eliminate the gas in cylinder.

The second pollution control

1. Hydraulic parts assembly using the "dry" assembly method, namely after cleaning parts, in order not to make the cleaning solution to keep the surface of the parts and affect the assembly quality, should be assembly again after parts surface drying.

2. The hydraulic parts assembly, if you need, it is prohibited to use iron hammer knock, can use the wooden hammer hammer, rubber hammer, copper and copper bar.

(3) are not allowed to wear gloves when assembly, is allowed to install wipes with fiber fabric surface, in case fiber class dirt inside the valve.

4. Have finished assembly of hydraulic components, components are not assembled, it should be with plastic plug stopped all of their oil.