During the operation of tractors, the wear and aging of parts are inevitable, which will deteriorate their technical status, reduce power, increase fuel consumption, and cause continuous failures. In order to prevent the occurrence of failures, timely and correct maintenance of tractors is required to extend the service life of tractors and reduce the cost of use. In the process of investigating the technical status of agricultural tractors, it was found that the maintenance of some parts did not receive due attention, resulting in many adverse consequences.
1. Ignoring Maintenance of Diesel Filters
The diesel filter has always played the role of a scavenger. Its main function is to filter out particulate impurities and water in diesel to ensure the normal operation of the engine. However, many diesel car drivers believe that each time the diesel is filled, it has been precipitated for a long time, and the impurities and water in the oil are already very clean, so they choose to give up installing or not maintain the diesel filter for a long time. In fact, this often leads to a loss of the big picture.
The diesel filter is generally used for 200 to 300 hours, and the filter element should be checked, cleaned or replaced. If you need to buy agricultural machinery parts, you can consider FridayParts aftermarket parts. They have a professional service team that can answer your questions, and the parts sold on their website are not expensive.
2. Valve Spring Replacement
Due to the high temperature of the valve spring, it is easy to cause annealing if it is not replaced for a long time, resulting in insufficient elasticity. At the same time, because the valve spring is constantly subjected to alternating stress, it will also produce plastic deformation if it is not replaced for a long time, which will shorten its free length and cause insufficient elasticity. The result of insufficient elasticity will inevitably lead to slow valve movement and delayed closing, and at the same time, the valve will not close tightly, resulting in insufficient cylinder pressure.
3. Valve Clearance Adjust
When the engine is working, the valve and valve transmission parts will expand due to the increase in temperature. If the engine does not use hydraulic tappets, there is no gap or the gap is too small between the valve and the valve transmission parts in the cold state, then in the hot state, the valve will not close tightly due to the thermal expansion of the valve and its transmission parts, causing the engine to leak during the compression and power strokes. Therefore, normal valve clearance is very necessary.
The adjusted valve clearance will also become larger due to the wear of the valve train parts, which will reduce the valve lift, cause insufficient inflation, poor exhaust, and bring abnormal knocking noise. Therefore, after the tractor has been used for a period of time, the valve clearance should be checked and adjusted.
4. Excessive Cooling Scale
Scale will not cause excessive scaling all year round, and the heat dissipation performance of the machine body will deteriorate, resulting in problems such as excessive machine temperature, thinning and deterioration of the engine oil, decreased mechanical strength of parts, and early wear of parts. At the same time, it will also reduce air intake and power. If the parts expand too much, it will affect their normal technical performance, and in severe cases, burning of tiles and sticking of shafts will occur.
To this end, before maintenance, fill the cooling system with a solution made of 10L water, 750g caustic soda and 250g kerosene. After the engine runs at medium speed for 5 to 10 minutes, leave the solution for 10 to 12 hours (note: in winter, it must be kept warm or run continuously to prevent freezing). Then, restart the engine and run it at medium speed for 5 to 10 minutes, release the washing solution, and rinse it carefully with clean water.
Conclusion
The above are some common problems that occur during tractor maintenance. Whether it is neglecting the diesel filter, valve springs, valve clearance, or cooling scale, they all need to be checked and replaced regularly. If you need to replace them, please cooperate with reliable suppliers because they can save your time and money!
