For semi-trailer drivers, the clutch is familiar to everyone, right? The clutch is an indispensable part of the combination of the semi-trailer. Once the clutch has a problem, it will affect the use of the brakes and cause safety hazards. Therefore, the clutch should be carefully cared for during use to increase its service life and ensure safe driving. So what symptoms will appear during the use of the clutch? Let’s explain it in detail below.

Let’s understand the principle of the entire clutch of the semi-trailer: when the power shift transmission clutch is engaged, the pressure of the hydraulic oil will overcome the spring force to press the friction plate. The increase in hydraulic oil pressure will allow the friction plate to contact and gradually press the metal plate, so that the clutch can smoothly transfer the flywheel power to the transmission input shaft. And every time the gear is shifted, the friction plate and the steel plate will rub against each other, and the heat generated will be dissipated by the coolant.

  1. Transmission internal leakage
    The direct cause of transmission internal leakage is the thinning of the friction plate and the steel plate, which requires more hydraulic oil when changing the clutch, and the slip time of the friction plate on the steel plate is also prolonged, which promotes the increase of hydraulic oil temperature, and finally causes internal leakage of the transmission.
  2. Clutch failure
    Due to oil leakage in the transmission, the clutch needs more oil to ensure the required pressure, and requires the engine to continue to accelerate, so that the hydraulic pump produces a larger flow, which eventually leads to overheating or burning of the clutch until it completely fails. This is a vicious cycle.

Therefore, for us semi-trailer drivers, semi-trailers must be regularly maintained and frequently inspected to ensure travel safety and avoid potential safety hazards.

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