(1) Under-equipped drive belts: Small four-wheel tractors typically come with three V-belts, but some models may only have one or two. When the tractor is in operation, the increased load can cause serious slippage of the drive belt. This not only reduces transmission efficiency but also lowers the output power. Additionally, the belt can overheat, leading to delamination, deformation, and faster wear. Therefore, it's important to avoid overloading the belt during work to extend its lifespan and ensure smooth operation. (2) Long-term neglect of the cooling system: The water tank of the tractor is usually open at the top, making it easy for dust and debris to enter when the machine is in use or parked. Sometimes, it gets filled with dirty or hard water, and impurities settle over time. As more dust and particles accumulate, scale forms and blocks the water passages, which affects engine cooling. This leads to higher engine temperatures, thinning of the oil, and reduced lubrication performance. It also accelerates wear on moving parts, causes expansion of components, and can result in performance loss, even serious issues like burnt piston rings, seized shafts, or stuck cylinders. (3) Unauthorized modifications: Some drivers make random changes to the tractor’s components, which can damage the original mechanical properties. For example, to increase speed, some install a larger pulley. This can lead to several problems: 1) Changing the pulley size alters the gear ratio, increasing clutch speed and impact loads when the engine RPM fluctuates, causing more torsional vibration and reducing the life of clutch parts. 2) A larger pulley increases the contact area between the belt and wheel, making the belt more prone to breaking and wearing out quickly. 3) Increased speed reduces traction, creating risks during transport and climbing. At the same time, the engine’s load increases, temperature rises, and oil becomes thinner, making it harder to form an effective oil film, which speeds up wear on the crankshaft and other engine components. 4) The tractor’s maneuverability and stability are compromised, and the braking system may suffer early wear due to poor braking performance. (4) Severe overloading: Some operators frequently overload the tractor during transport, which can be very dangerous. Overloading puts extra pressure on the engine, transmission, and running parts, raising the operating temperature and thinning the lubricating oil, which weakens its effectiveness. In emergencies, the tractor might not stop in time, increasing braking distance and the risk of accidents. Also, fuel consumption goes up, black smoke comes from the exhaust, and carbon deposits build up in the combustion chamber, accelerating wear on pistons and cylinders. (5) Improper starting method: Some tractors are started by being pulled by another vehicle. However, the high viscosity of the oil in the transmission and oil pan increases resistance. When the clutch is engaged suddenly, the gears experience heavy impact. Repeatedly using this method can cause gear teeth to fracture due to fatigue. It is especially unsafe to start the tractor this way in cold weather, as it can cause severe damage to internal components. Eas Soft Label,Eas Am Label,Am Eas Tag,Rf Soft Label Wenzhou Boshine Electronic Security Co. Ltd , https://www.boshine.com
Small four-wheel tractor in use should pay attention to what the problem?
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