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Repair Agricultural Machinery Precautions
Published:2018-09-01 08:55:15    Text Size:【BIG】【MEDIUM】【SMALL

In the maintenance of agricultural machinery, some operators and maintenance personnel save time and save costs, and will use some "small clever". In order to extend the life of the machine, we should avoid the following solutions:

1. Install the piston pin to open the fire. Since the piston pin seat is thicker and the other parts are thinner, the thermal expansion coefficient after the open flame is heated is large, and the piston is easily deformed. Generally, the open flame heating temperature is high. During the natural cooling process, the metal structure inside is damaged, thereby reducing the wear resistance and service life of the piston.

2、Replacing oil does not clean the oil passage. Many operators do not clean the oil pan or channel when they change the lubricating oil. It is unscientific to do  because the oil pan and  channel are not cleaned and contain many impurities. The surface of the parts will aggravate the wear of the parts, especially the new or overhauled locomotives. After test running, there will be more impurities. If it is not cleaned and enters the working condition, there will be burnt tiles and shafting accidents.

3、Install the cylinder head gasket and apply butter. Many people like to apply a layer of butter to the cylinder when installing the cylinder head gasket. When the butter meets the high temperature, it melts and loses. The cylinder head,  block and  head gasket create a gap. The gas easily escapes from it, causing the cylinder to leak and the cylinder gasket to be damaged. The coke formed by the high temperature of the butter will also deteriorate the cylinder mat, increasing the difficulty of assembly and disassembly, and bring a lot of troubles to the repair.

4、Tighten the connecting rod screws without a torque wrench. Most of the operators do not need a torque wrench when tightening the connecting rod screws, but use a special wrench to tighten and tighten. In this way, the connecting rod screw generates internal stress due to excessive force, which causes excessive fatigue of the metal to cause the connecting rod screw to break, causing a machine accident.

5、No air filter is installed when driving. The engine absorbs fresh air during operation to remove exhaust gases. If the air filter is not installed, a large amount of dust in the air is sucked into the cylinder by the engine during operation, which will accelerate the wear of the engine and reduce the power of it.

In the process of using or repairing, have you seen the above-mentioned "small cleverness"? In order to improve the performance and extend the service life of the machine, please be sure to avoid similar incidents.

 

 
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