There are a variety of common faults that agricultural tractors may encounter during use, which not only affect their normal functioning but can also lead to more serious damage. Here are some common failures along with their causes and solutions
Wheels are "in a daze": This refers to the fact that when a farm tractor is driving, especially on a rough or badly roaded road, the driver may find that the wheels are suddenly stuck and do not turn even though they have not pressed the brake pedal. This may be due to the serious wear between the brake pin and the brake shoe pin hole of the trailer, resulting in the unstable positioning of the brake shoe in the brake drum, especially when the car is bumpy and violent, the friction pads on the brake shoe are partially in contact with the brake drum, resulting in friction resistance and causing the wheel to be "in a daze". Workarounds include replacing parts or adjusting the gap between the friction pads and the brake drum.
Difficulty starting: The most common causes of difficulty in starting include untightened cylinder head nuts or damaged cylinder gaskets, leaking intake and exhaust valves, heavy wear of piston rings, etc. These problems can be solved by tightening the cylinder head nut, replacing the cylinder gasket, adjusting the valve clearance, or replacing the piston rings.
Signs of failure: In the process of using agricultural tractors, once there is a failure, it can often be reflected through the external phenomenon. Common signs of failure include abnormal function, power, economy, reliability, and significant reduction in work quality indicators. These signs indicate that the driver should stop for inspection, analysis and troubleshooting.
Natural factors and human factors: The causes of agricultural tractor failure can be divided into natural factors and human factors. Natural factors include wear and tear of parts, vibration of parts, aging of machines, internal pollution, etc., while human factors involve poor quality of manufacturing and maintenance, improper adjustment of operations, etc. These factors can lead to large gaps between agricultural tractor parts, loose connections, poor sealing, improper operation, etc.
Troubleshooting methods: including isolation method, heuristic method, comparative method and empirical method, etc. These methods determine the scope of the fault by preliminarily judging the location of the fault, and then partially isolating or isolating the work of a certain system or a certain component, and observing the changes in the signs.