Q:Kobelco 330 6e excavator hydraulic pump overhaul after the car is going to hold

5. low torque: the maximum torque of the engine shall not be less than 90% of the original design calibration value. The dynamometer shall be checked in accordance with the relevant provisions, and the work capacity shall be seriously damaged.

Q:Pneumatic cylinder stem can replace pneumatic hydraulic jacking rod. Who is big?

As a result, the thrust of the hydraulic rod is about 10 times greater than the thrust of the pneumatic rod. The difference between the two is too large, so they are on the use of strength, pressure performance, manufacturing materials, especially thrust, are very different. Therefore, the top rod of the pneumatic cylinder piston rod can not replace the top rod of the piston rod of the hydraulic cylinder.

Q:How is the hydraulic jack refitted into a high pressure inflator?

As long as the pressure of the air pump is large enough, of course, the compression resistance of the hose should be good enough, and the speed problem can be solved by the reducing joint.Test method:1. remove the hydraulic jack refueling refueling Pusey, down on the square on the tin.2. release the hydraulic jack release valve and release the oil.3. remove the lift lever and use the +0 wrench. 8 meters of pipe clockwise unscrew the small pump, using a pointed nose pliers to pry open the gasket, remove the 6# ball.4. hydraulic jacks clamped in a vise, use pipe wrench will cap loosens counterclockwise, remove.5. beat the coat with a leather hammer and take it off.

Q:Hydraulic oil? Refrigerant? Brake night? What are they? What's the function of it?

The brake fluid is the brake fluidElectrolyte is the storage battery water, batteries are free maintenance batteries, disposable.Is the air conditioning Freon liquidOil, water tank, brake, battery water should be checked regularly

Q:Can you tell me if the cylinder can be changed into an oil cylinder (low pressure)?

Yes, as long as your oil pressure is below 8KG on the line, but it is difficult to get such oil pressure, the general pressure of the pump above 70KG, if filled into the cylinder, it will burst.

Q:What is a constant velocity cylinder? What's the difference between a hydraulic cylinder and a hydraulic cylinder?

The cylinder piston rod extends out should be constant and consistent back speed cylinder called isokinetic cylinder. The difference between it and ordinary hydraulic cylinder hydraulic cylinder is common only a head with a piston rod extends out of the general slow recovery fast, because the relationship between the effective area of the piston cavity.

Q:For example, I press a workpiece with a hydraulic press, and the pressure gauge shows 0.3MPa. Then I change the cylinder pressure. When I type, I choose the 0.3MPa cylinder instead of the inner diameter of the cylinder.

To see the pressure gauge is arranged in what position, the general pressure gauge installed in the hydraulic station exit, that is the pressure of the hydraulic system;

Q:machinery and components, such as cylinders, cylinders and so on, whether the pressure vessel ah? Does the relevant manufacturer need relevant qualifications? FiveThere are two entirely different answers to the question. Which one is right? Hope that professionals pointing. Thank you

In hydraulic and pneumatic equipment, only the gas tank and accumulator belong to the pressure vessel and require qualification. The remaining electromagnetic valves, cylinders and cylinders do not belong to the pressure vessel

Q:Hydraulic principle

A typical hydraulic system comprises a hydraulic pump, hydraulic oil tank, directional control valve, flow control valve, the working cylinder, plunger valve and pressure relief valve. Three kinds of typical hydraulic pump hydraulic system used in gear pump, vane pump and axial reciprocating pump. Pump is the power component liquid system is the heart of the hydraulic pump control element. (including the flow valve, relief valve, directional valve and proportional valve etc.) for controlling and regulating the fluid pressure. The flow and direction, to meet the performance requirements of equipments, and the realization of various work cycle, the implementation of components to the pressure of the liquid can be converted to mechanical energy, so as to drive the movement of the mechanism.

Q:Apart from the way they are installed, are their sensors universal? That is, can the induction switches used on the A model cylinder be used on the B model cylinders?!Some cylinders use large ones, but others are very small. Are they interchangeable? That is, if the big induction switch is broken, can it be replaced with a small one?

If the interface is the same as the pressure or flow level, you can use it