Hydraulic oil can also "fire"?
author: Ann
2024-09-30
For hydraulic oil will also "fire" this problem, do you know? Oil viscosity decline, leakage increase, and make the system heat, the formation of a vicious circle; accelerate the oxidation of the oil, the formation of gel-like substances, blocking the component holes, so that the hydraulic component failure or stuck, can not work; so that the rubber seals, hose aging failure; so that the oil pump and hydraulic valves wear and tear, or even scrapped. Hydraulic oil fire, the situation is very serious.
1 Hydraulic system heating due to external causes
At this time, the shock absorber box oil drain to the standard oil level, the fault can be eliminated. Caused by the shock absorber box oil level is too high for two reasons, one is the operator blindly refueling; the second is the hydraulic pump shaft end oil seal aging, so that the hydraulic oil thus leakage, the latter should be dismantled bolted hydraulic pump to replace the oil seal.
2 poor radiator cooling performance caused by high oil temperature
Poor radiator cooling performance of the main forms: external cooling fins deformation or blockage, poor cooling effect; cooling fan amount is insufficient; hydraulic oil radiator internal piping blockage. Judgment of the hydraulic oil radiator internal pipe blockage, can be installed in the radiator inlet and outlet oil pressure gauge, oil temperature of 45 ° about the pressure difference in the 0.12mpa below the normal situation, if higher than 0.12mpa, it is shown that the oil pipe blockage is serious, should be dismantled radiator upper and lower cover, dredge the pipeline.
3 Other reasons
General machine is to rely on the fan pump to drive the fan motor to adjust the speed, there is an overflow device, the general oil temperature is high, check these places can be solved.
General machine is to rely on the fan pump to drive the fan motor to adjust the speed, there is an overflow device, the general oil temperature is high, check these places can be solved.
4 Attention
In the case of high oil and water temperatures at the same time, if the amount of oil and water is sufficient or not lacking, the oil temperature should be lowered first, and then the water temperature, if the water temperature is lowered first, it will increase the inertia force and centrifugal force of the piston connecting xuan group, so that the crankshaft bearings increase the load. At the same time, the relative friction speed of the journal and the axle tile will also increase, so that the heat generated per unit of time increases, the oil pump oil volume decreases, and a large amount of oil is thrown out from the main oil channel, which leads to the friction surface of each piece of the friction surface due to the lack of sufficient lubricating oil to intensify the abrasion, and the oil temperature will further increase.
In the case of high oil and water temperatures at the same time, if the amount of oil and water is sufficient or not lacking, the oil temperature should be lowered first, and then the water temperature, if the water temperature is lowered first, it will increase the inertia force and centrifugal force of the piston connecting xuan group, so that the crankshaft bearings increase the load. At the same time, the relative friction speed of the journal and the axle tile will also increase, so that the heat generated per unit of time increases, the oil pump oil volume decreases, and a large amount of oil is thrown out from the main oil channel, which leads to the friction surface of each piece of the friction surface due to the lack of sufficient lubricating oil to intensify the abrasion, and the oil temperature will further increase.
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