telescopic wheel loader Adverse effects of high oil temperature fault of excavator hydraulic pump on excavator:
When the telescopic radlader oil temperature exceeds 55 ℃, the oil oxidation will intensify and the service life will be shortened. According to the data, when the oil temperature exceeds 55 ℃, the service life of the oil will be shortened by half for every 9 ℃ increase in temperature. Therefore, for machines with different purposes and working conditions, there should be different working oil temperatures. The allowable normal working oil temperature of the hydraulic system of engineering machinery is 35-55 ℃, and the maximum is 70 ℃. The corresponding troubleshooting:
1 Control the telescopic swing loader,telescopic swivel loader filtering accuracy
2 Check the cleanliness of the oil
3 Establish the first level maintenance system for the hydraulic system
4 Take lifting boom telescopic handler samples and test the oil regularly, clean it regularly, filter the oil regularly and control its service life
1 The decrease of oil viscosity will damage the oil film at the moving parts and increase the friction resistance, causing the system to heat up and the actuating elements (such as hydraulic cylinders) to crawl. The decrease of oil viscosity can lead to increased leakage and significantly reduced system efficiency
2 After the loader teleskoplader 5 ton viscosity of the oil drops, the characteristics of the hydraulic pump system of the excavator will change when the oil temperature is high and it passes through the restrictor, which makes the piston movement speed unstable
3 The high oil temperature causes the articulated site dump truck thermal expansion of the machine parts, and the excavator is unable to operate and the excavator is unable to jam, resulting in ineffective operation or jamming, which reduces its working performance and accuracy . www.haiqinmachinery.com