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What are the causes of transmission system failure?

2 Answers

DelElliott

07/25/25 5:45am

Transmission system failures are mainly caused by: 1. Abnormal speed in hydraulic transmission systems: For faults caused by speed abnormalities, it is necessary to individually adjust variable structures such as throttle valves, relief valves, variable displacement pumps, and speed control valves, then compare their speed range values with technical reference values for analysis. 2. Abnormal operation in hydraulic transmission systems: For faults caused by operational abnormalities, it is required to observe the operating status of relevant system actuators, determine whether they are functioning normally based on their status, identify malfunctioning directional control valves, and subsequently inspect travel control to locate the abnormal areas in the hydraulic transmission system. 3. Abnormal pressure in hydraulic transmission systems: To determine if faults are caused by pressure abnormalities, use a pressure gauge to measure the pressure values at reserved pressure test points on the system pipelines. By analyzing the difference between the measured values and standard values, the fault location causing abnormal pressure in the hydraulic transmission system can be identified.

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MacDakota

08/10/25 5:52pm

There are quite a few reasons for transmission system problems. As someone who frequently repairs cars, common issues include insufficient or deteriorated transmission fluid, which can cause gear shifting to be rough or even slip due to increased friction from poor lubrication. Clutch wear is a common problem for manual transmissions, and frequent partial clutch engagement can lead to premature failure. Sensor malfunctions are also serious—for example, a faulty speed sensor can cause the computer to improperly control gear shifts. Additionally, mechanical component aging, such as valve body blockages or loose bearings, can pose hidden risks. Car owners should pay attention to oil change intervals and driving habits, avoiding sudden acceleration to prevent minor issues from escalating into expensive and troublesome repairs. Regular inspections can help avoid many unexpected problems.

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