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Common fault emergency handling method of excavator

Views: 0     Author: Site Editor     Publish Time: 2024-05-24      Origin: Site

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(1) When the "jump block" is driving on the flat road, it can stop according to the normal shutdown points, carefully find the cause, and eliminate the fault.


(2) uphill driving "jump block", the gear position in the low-speed position or I gear position, when the machine driving to the top of the slope, stop, troubleshooting; if the reduction is not successful or another "jump block", the action and requirements of the ramp stop, and then remove the fault.


(3) When "jump" on the downhill path, take the position at the high speed or "stop" (emergency reduction) after the machine travels to the bottom of the slope, eliminate the fault; if the "block", "block" is unsuccessful or again "jump" (neutral), the driver can control the engine speed at the medium speed (prevent engine stalling), adopt the method of "stop" to make the machine slip to the bottom, and then eliminate the fault. If "add block", "grab block" is not successful or again appear "jump block" (at this time is neutral), and the machine is in the big ramp (at this time the machine will "dive" to the bottom of the slope), should quickly in accordance with the downhill stop action essentials and requirements to stop, and then deduct the fault.


One: Whether the rotary operation pilot _ secondary pressure is within the normal range (the normal pilot pressure is above 35 KG);


Two: the overflow valve is damaged, the overflow pressure is within the normal range (overflow pressure: 280 KG);


Three: whether the main valve spool is switched in place, whether the return valve spool spring is broken;


Four: flow distribution to wear damage, resulting in rotary motor leakage;


Five: the rotary motor pump body and plunger wear and damage, resulting in motor leakage;


Six: only the slow rotation of other normal action, can eliminate the hydraulic main pump, main overflow valve fault.


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Jining Qianyu Commercial & Trade Co., Ltd. is located in Jining, Shandong, the hometown of engineering machinery manufacturing. We specialize in R&D and production of bulldozers and excavators. The company has more than 20 years of experience in selling bulldozers, excavators and other construction machinery spare parts. The company mainly cooperates with brands such as Komatsu, Shantui, Caterpillar, Hitachi, and Sany.


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  •  The company adheres to the concept of "Be honest and act professionally".

  •  We specialize in R&D and production of bulldozers and excavators.

  •  Specializing in the sales of engineering machinery parts for many years.

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