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Hitachi ex200 hydraulic pump is the power source of the hydraulic system of the excavator, and it is an energy conversion device that converts mechanical energy into hydraulic energy.
In the hydraulic excavator, the hitachi ex200 hydraulic pump is also the most faulty component. Once the hydraulic pump fails, it will immediately affect the normal operation of the excavator's hydraulic system, or even fail to work. What are the common faults of the hydraulic pump?
Top Seller Cheaper Hitachi Ex200 Hydraulic Pump For Sale
| Name | Top Seller Cheaper Hitachi Ex200 Hydraulic Pump For Sale |
| Product Number | All Part Numbers You Need |
| Condition | Original Brand New |
| MOQ | 1 Piece |
| Payment | T/T, Western Union, Paypal, etc |
| Standard or Nonstandard | Standard |
| Delivery Time | In 3 Days |
| Packing | Wooden Box |
| Warranty | 6 Months |
| Transport | By sea/air/express (DHL/FEDEX/TNT/UPS/EMS/City-line) |
1. Most of the common faults of gear pumps are caused by the wear of their internal friction pairs. Its normal wear increases radial clearance and axial clearance (that is, cross-section clearance), and the leakage in the gear pump is aggravated. In addition, the seal of the shaft is also a frequently damaged component.
2. The vane pump is different from the gear pump, its normal wear is very small, and the service life of the parts is long. The main reason for the failure of the vane pump is the oil pollution. This is because the motion pair of the vane pump is more precise. When the pollutants enter the friction pair, it is easy to cause abnormal sticking or wear. In addition, the self-priming performance of the vane pump is not as good as that of the gear pump, especially the vane pump with small displacement. Therefore, whether the oil is clean and the oil suction is smooth are two issues that need special attention in the operation of the vane pump.
3. The weak points of the radial piston pump in the structure and motion performance of the piston pump are the large radial force, the poor self-priming ability and the high matching accuracy between the piston and the piston hole; The machining accuracy of parts is required to be high. Therefore, the plunger pump has high requirements for the cleanliness of the oil, that is, the plunger pump has a higher requirement for the filtration accuracy of the oil than the gear pump.
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