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1、 Sealing system failure: the "number one culprit" of oil leakage
According to the maintenance data of Dilzu tail lift, 70% of oil leakage faults are caused by aging or wear of the sealing ring. Long term high-frequency folding operations can cause rubber seals to harden and crack, especially at the connection between hydraulic cylinders and pipelines. Failure to replace them in a timely manner can lead to leakage. For example, the sealing ring of a hydraulic cylinder is prone to deformation and failure under extreme temperature differences (-30 ℃ to 80 ℃), causing oil to seep out from the joint.
In depth analysis of the causes of oil leakage in the tail plate, maintenance guide for the sealing system of Dilzu tail lift
2、 Chain reaction caused by structural damage
Oil cylinder deformation: Overloading, loading or impact can cause the oil cylinder wall to be squeezed and deformed, forming a gap of more than 0.1mm, which can cause oil leakage
Pipeline rupture: Metal oil pipes are prone to fatigue fracture due to bumps and vibrations. The use of double-layer braided hoses on the top beam column tail plate can reduce the risk of rupture by 90%
Loose buckles: Loose hinge buckles on the folding tail lift can cause pressure imbalance in the hydraulic system, accelerating seal wear and tear
3、 Improper maintenance accelerates the oil leakage process
Hydraulic oil contamination: Oil that is not regularly replaced can mix with metal debris, wear the sealing surface, and cause leakage (recommended to replace every 6 months)
Lack of cleaning: Sediments adhering to the surface of the oil cylinder can scratch the sealing ring, and the IP67 protection design of the top beam column tail plate can effectively isolate pollutants
Incorrect operation: Violent folding or forced unfolding without unlocking may cause structural deformation
4、 Systematic solutions and preventive measures
In response to the above issues, a triple protection system has been introduced for Dilzu tail lift:
Intelligent monitoring system: Real time detection of hydraulic pressure and oil temperature, automatic warning of abnormal data
Modular sealing kit: supports quick replacement, reducing repair time from 4 hours to 30 minutes
Regular maintenance service: providing quarterly inspections, including 12 standard processes such as sealing testing, oil replacement, etc
User testing has shown that standardized use and coordinated maintenance can reduce the probability of oil leakage by 82%
Tags： Tail plate oil leakage repair Dilzu tail lift hydraulic sealing system maintenance of truck tail lift troubleshooting of loading and unloading equipment
Url：http://www.dilzutaillift.com/faq/topbeam-tailplate-oil-leak-seal-maintenance-guide.html