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Excavator hydraulic oil temperature is high (hydraulic oil temperature is related to ambient temperature, standard value < 90 ℃). main cause: (1) Low or deteriorated hydraulic oil (2) Insufficie...
The excavator boom can only be raised, not lowered. main cause: (1) Pilot valve failure (2) Boom linkage main valve internal failure (3) Boom hold valve fault diagnosis process: Step 1: check wheth...
main cause: (1) The oil level is too low. (2) Line and electrical fault (3) The oil filter element is blocked (4) Oil circuit fault diagnosis process: Step 1: check whether the oil level is at the ...
The maintenance of loader accessories hydraulic cylinder is the maintenance of hydraulic medium and hydraulic cylinder. Hydraulic transmission has the advantages of simple structure, stable quality...
In the case of loader differential, sometimes a mechanism for limiting the differential is installed at the same time. In order to place the mechanism into the housing, a two-piece housing that can...
When the loader is in use, in order to ensure the good efficiency of the cooling system of the small machine, all components of the cooling system shall be thoroughly cleaned, fastened and lubricat...
Does the oil tank of loader accessories really need to be cleaned? Of course, the answer is yes. Although the oil tank is basically semi closed except for refueling, with the increase of the age of...
main cause: 1. Insufficient air volume 2. Insufficient or substandard coolant 3. Abnormal oil level 4. Use inferior fuel 5. Thermostat fault Diagnosis process of poor operation of water pump: Step ...
Cause of blue smoke from excavator: 1. The cold car emits blue smoke. It may be that the fuel injection nozzle is stuck, or the diesel pump needs to be calibrated. A. The valve oil seal is not well...
The correct use and maintenance of hydraulic engineering machinery can not only keep the equipment in good technical state, but also prevent the equipment from premature damage, so as to prolong th...
