In order to enhance the safety of tractor transportation, most tractors are equipped with air brake systems. However, the author emphasizes that even with such a system in place, operators must remain vigilant and attentive to safety procedures. Air brakes are an important addition, but they require proper maintenance and correct usage to function effectively. First, maintaining cleanliness inside and outside the air tank is crucial. The exterior should be kept clean, and if paint is chipped or removed, it should be repainted immediately to prevent rust and prolong the tank’s lifespan. The interior must also be kept free from oil and water residues. Every three days of operation, the drain valve at the bottom of the air tank should be opened to release any accumulated moisture and oil. If left unchecked, these substances can travel through the brake lines and reach the brake valve and air chamber, causing blockages and potentially leading to brake failure. Second, maintaining the right air pressure is essential. Too low pressure may result in braking failure or increased stopping distance, which could lead to accidents. On the other hand, excessive pressure can cause unnecessary wear on the system and may damage the air pump or reservoir. The recommended pressure is above 4.5 kg/cm² when starting and should not exceed 7 kg/cm² during normal driving. If the pressure goes beyond this limit, you should hear the safety valve releasing air. This is a clear indicator that the system is under stress and needs attention. Third, the trailer’s brakes should engage slightly before the main vehicle’s brakes. Due to the weight and inertia of the trailer and its cargo, if both the tractor and trailer brake simultaneously, the tractor may lose control and skid forward. To prevent this, the trailer’s braking system should be adjusted so that it engages just ahead of the main vehicle’s brakes, ensuring a smoother and safer stop. Fourth, all four wheels of both the tractor and trailer should brake simultaneously. During high-speed or emergency braking, uneven braking between front and rear or left and right wheels can cause the tractor to veer off course or even roll over. Therefore, it's important to adjust the brakes so that all four wheels of the tractor and trailer engage at the same time, ensuring balanced and stable braking performance. Fifth, the brakes must remain flexible and functional. To ensure this, the operator should: 1) Check that all brake pipe connections are secure before leaving the vehicle. 2) Test the brakes several times to confirm they respond smoothly and effectively. 3) When descending a long slope, make sure the air pressure is sufficient. If it's not, stop and inflate the system until the pressure is adequate before proceeding. Lastly, using the correct braking technique is vital. Under normal conditions, slow down the vehicle first, then disengage the clutch and press the brake pedal to come to a smooth stop. Shift the gear to neutral afterward. In an emergency, quickly apply the brakes while also pressing the clutch pedal. Once safely stopped, shift into neutral to prevent unintended movement.

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