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Fast Gearbox Repair Tool Manual - Common Faults and Troubleshooting

Fast Gearbox Repair Tool Manual - Common Faults and Troubleshooting

Update Time:2025/5/7
Fast Gearbox Repair Tool Manual - Common Faults and Troubleshooting: Overheating of the Transmission.

The long-term operating temperature of the transmission should not exceed 120°C. If this temperature is exceeded, the lubricating oil will deteriorate and the life of the transmission will be affected.

Due to the friction of the moving parts, the transmission will generate a certain amount of heat. The normal operating temperature is about 38°C higher than the ambient temperature. The heat is dissipated through the transmission housing. If the heat dissipation is not normal, it will cause overheating.

Before looking for the cause of overheating, the oil temperature gauge and oil temperature sensor must be checked to ensure that the reading of the oil temperature gauge is correct.
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Generally, overheating is caused by the following reasons:
1) Improper lubrication. The oil level is too low or too high, the oil grade is wrong, or the transmission working angle exceeds 12°.
2) The driving speed is usually below 32Km/h.
3) The engine speed is too high;
4) The airflow around the transmission is blocked because the transmission is surrounded by the frame, floor, fuel tank and installed between the large bumper assembly;
5) The engine exhaust system is too close to the transmission;
6) The ambient temperature is too high;
7) Overloading and speeding.

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