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What are the tips for dealing with cracks in tiles?
by：Kastar
2021-04-06
The rapid development of excavators More problems with excavators have been invented by people. Among them, excavator arm loss is one of the most frequent failures of excavators in summer and winter. Recently, many owners have left a message asking what to do if the excavator arm has fallen? and Excavator arm repair method, next excavator repair to solve the excavator arm repair method, I will give you a brief introduction.
Causes of Excavator Arm Falling
1. The problem of hydraulic oil, the oil seal of the oil cylinder is broken, the distributor is worn and the pressure is relieved, and the oil circuit leaks
2. The oil seal of the forearm safety relief valve of the excavator is broken, causing the excavator to fall off the arm
The oil seal of the excavator oil cylinder is damaged.
1. In some cases, the excavator's arm drop failure is caused by the leakage of the excavator's oil cylinder or the poor valve core of the excavator's multi-way valve. Therefore, if the excavator is in use, the excavator appears In the event of arm failure, the excavator multi-way valve spool can be exchanged first and then the excavator oil cylinder can be inspected. The materials excavated by the Chengdu excavator second-hand market are mainly soil, coal, silt, and pre-loose soil and rock. From the perspective of the development of construction machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of an excavator: operating weight (mass), engine power and bucket capacity can eliminate the failure of the excavator's arm drop, and the new excavator will not cause the arm drop failure when in use.
2. Replace the damaged safety relief valve oil seal and cylinder oil seal to eliminate the problem of excavator arm dropping
Reasons for the maintenance of the large and small arms of the excavator
1. The problem of the oil pump
2. Revise the oil pump
3. Excavator hydraulic oil failure
4. My Construction Machinery Network is a comprehensive industry portal integrating information exchange, product shopping guide and application services in the field of construction machinery, providing you with the latest construction machinery quotations, construction machinery pictures, construction machinery model information, construction machinery forums, Construction machinery information information, effectjx.com-construction machinery network is China's leading construction machinery theme community. Excavator hydraulic cylinder failure
5. The excavator's deployment valve is faulty, causing the excavator's large and small arms to fall off the failure
6. The oil seal of the large and small arm insurance relief valve is broken
7. The oil seal of the oil cylinder of the excavator is damaged
8. Improper application of excavator hydraulic oil
9. Excavator oil cylinder oil seal is damaged
10. The hydraulic pressure is insufficient or the mechanical part that controls the hydraulic pressure needs to be adjusted, which is too loose
Digging, flexible, slow, weak arm, troubleshooting steps
1 Review whether the rotation speed of the excavator is abnormal
2 Check whether the working pressure and pilot pressure of the main hydraulic pump of the excavator meet the requirements
3 If the above two points are normal, check whether the regeneration valve of the excavator's boom or forearm is worn
4 If the boom of the excavator is off, look at the safety valve on the anti-drift valve and whether a small spool on the valve is stuck. This should be removed and checked.
5 If everything is normal, check whether the pilot or overflow valve works smoothly. With the widespread use of hydraulic technology, excavators have more scientific and applicable transmission devices, and hydraulic transmission replaces mechanical transmission. It is a great leap in excavator technology. In 1950, Germany's first hydraulic excavator was born. The hydraulicization of mechanical transmission is the second generation of excavators, and the boom should be a one-way stop valve problem
Causes of Excavator Arm Falling
1. The problem of hydraulic oil, the oil seal of the oil cylinder is broken, the distributor is worn and the pressure is relieved, and the oil circuit leaks
2. The oil seal of the forearm safety relief valve of the excavator is broken, causing the excavator to fall off the arm
The oil seal of the excavator oil cylinder is damaged.
1. In some cases, the excavator's arm drop failure is caused by the leakage of the excavator's oil cylinder or the poor valve core of the excavator's multi-way valve. Therefore, if the excavator is in use, the excavator appears In the event of arm failure, the excavator multi-way valve spool can be exchanged first and then the excavator oil cylinder can be inspected. The materials excavated by the Chengdu excavator second-hand market are mainly soil, coal, silt, and pre-loose soil and rock. From the perspective of the development of construction machinery in recent years, the development of excavators is relatively fast, and excavators have become one of the most important construction machinery in engineering construction. The three most important parameters of an excavator: operating weight (mass), engine power and bucket capacity can eliminate the failure of the excavator's arm drop, and the new excavator will not cause the arm drop failure when in use.
2. Replace the damaged safety relief valve oil seal and cylinder oil seal to eliminate the problem of excavator arm dropping
Reasons for the maintenance of the large and small arms of the excavator
1. The problem of the oil pump
2. Revise the oil pump
3. Excavator hydraulic oil failure
4. My Construction Machinery Network is a comprehensive industry portal integrating information exchange, product shopping guide and application services in the field of construction machinery, providing you with the latest construction machinery quotations, construction machinery pictures, construction machinery model information, construction machinery forums, Construction machinery information information, effectjx.com-construction machinery network is China's leading construction machinery theme community. Excavator hydraulic cylinder failure
5. The excavator's deployment valve is faulty, causing the excavator's large and small arms to fall off the failure
6. The oil seal of the large and small arm insurance relief valve is broken
7. The oil seal of the oil cylinder of the excavator is damaged
8. Improper application of excavator hydraulic oil
9. Excavator oil cylinder oil seal is damaged
10. The hydraulic pressure is insufficient or the mechanical part that controls the hydraulic pressure needs to be adjusted, which is too loose
Digging, flexible, slow, weak arm, troubleshooting steps
1 Review whether the rotation speed of the excavator is abnormal
2 Check whether the working pressure and pilot pressure of the main hydraulic pump of the excavator meet the requirements
3 If the above two points are normal, check whether the regeneration valve of the excavator's boom or forearm is worn
4 If the boom of the excavator is off, look at the safety valve on the anti-drift valve and whether a small spool on the valve is stuck. This should be removed and checked.
5 If everything is normal, check whether the pilot or overflow valve works smoothly. With the widespread use of hydraulic technology, excavators have more scientific and applicable transmission devices, and hydraulic transmission replaces mechanical transmission. It is a great leap in excavator technology. In 1950, Germany's first hydraulic excavator was born. The hydraulicization of mechanical transmission is the second generation of excavators, and the boom should be a one-way stop valve problem
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