excavator hydraulic pump

Caterpillar excavator filter maintenance 1. The caterpillar oil filters is the core component of the filter. It is made of special materials and is a wearing part, which requires special maintenance and maintenance; 2. When the caterpillar oil filters has been working for a long time, the filter element has intercepted certain impurities, which will lead to an increase in pressure and a decrease in flow. At this time, it needs to be cleaned in time;

Is the higher the filtration precision of the excavator oil filter, the better?   For an engine or equipment, an appropriate filter element should achieve a balance between filtration efficiency and ash holding capacity. Using a excavator oil filter with a high filtration precision may shorten the service life of the filter element due to the low ash capacity of the filter element, thereby increasing the risk of premature clogging of the oil filter element.

hitachi hydraulic pump parts: 1. The composition of the external feedback pressure-limiting variable vane pump: shell, bushing, stator, pump shaft, rotor, flow adjustment screw, control piston, needle roller bearing, slider, pressure limiting spring, pressure adjustment screw; 2. The hydraulic pump is a hydraulic power component in the hydraulic system. Its function is to convert the mechanical energy of the system {internal combustion engine or motor} into liquid pressure, and it is the power source of the hydraulic system. Hydraulic pump can be divided into tooth cooling pump, vane pump, plunger pump according to the structure; 3. There are many different uses of each pump. According to the different circuits, it can be divided into open pump, closed pump and so on. The core principle of hydraulic pump {Pastor's principle}: the liquid pressure is equal everywhere. That is, the pressure in the working pump cavity changes and reciprocates the oil suction and oil discharge. Kyushan got all kinds of Hitachi excavator hydraulic pumps and pump parts for sale， you can send your inquiries with the excavator model numbers you need， we will reply as soon as possible.

Kyushan Specialized in hydraulic seals and seal kits for hydraulic hammer rock breaker, hydraulic excavator, wheel loader, and JCB backhoe loader. And, Our Company also supply Engine Parts, hydraulic piston pump and hydraulic travel motor, Swing motor assembly and hydraulic component parts, electric parts, etc. Hydraulic hammer breaker parts with piston, cylinder, chisel, through bolt, side bolt, top bush, front head bushing, accumulator, valve, etc. We always try our best for all our customers and make it better and better. Welcome!

We have 76 teeth and 80 teeth of swing bearing for excavator, 1.High Quality and Direct Factory Price. 2.Durable, excellent workmanship and Long Service Life. 3.We are always improving our design and patterns to confirm to the world market. 4.Please contact me,I will provide the best price and after-sales service for you. 5.We have the most complete Excavator parts type and model, I will tell you the details.

As one of the "three major parts" (engine, cat 330 hydraulic pump, distribution valve) of an excavator, the "cat 330 hydraulic pump" can be regarded as an energy conversion device more often, which converts the mechanical energy from the engine into hydraulic energy, for The hydraulic system provides a certain flow of pressure oil to drive the hydraulic cylinder and hydraulic motor. It can be said that the hydraulic pump is the power source of the entire hydraulic system.

Precautions after replacing the new cat 320d hydraulic pump (1) Pay attention to the discovery of abnormal phenomena at any time Abnormal sounds, vibrations, or abnormal signals of the monitoring system must have their reasons. When an abnormal phenomenon is found, immediately find the circuit diagram, follow the diagram to find out, and carefully observe whether the abnormal phenomenon is caused by a temporary error. Assess the need for parking. For example, pressure, load, temperature, time, start-up, and stop all include the reasons that may cause abnormal phenomena. Usually, it should be analyzed and discussed item by item.

cat 320 excavator hydraulic pump Adjustment Method 1. The adjustment method of the maximum flow of the cat 320 excavator hydraulic pump: According to the figure, we need to loosen the regulator lock nut 1 first, and adjust the screw 2 at the same time. Remember to adjust the direction of adjustment clockwise to increase the flow, and anti-clockwise to reduce the flow. During the adjustment process, it should be noted that when adjusting the maximum flow, the adjustment screw 2 should not be larger than 2 turns.

The cat 312 hydraulic pump is supplied with oil by the main pump driven by the engine. The main pump is divided into an upper pump and a lower pump, both of which are swash plate type plunger pumps. There is a main pump regulator behind each main pump. By changing the effective stroke of the plunger to the main pump, the displacement increases or decreases, that is, the power absorption capacity of the main pump is increased or decreased.