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major failure
One is that the leather bowl is not good. This is a common problem of almost all domestic oil guns. But it is no wonder that the structure of an oil gun is more complicated than ordinary tools. It can only be sold for more than ten yuan. Bar;
The second is that the oil pressure mechanism is not good, but if there is no problem with the spring and the check ball, it probably cannot be repaired.
The third is some failures in use. Many of the failures in use are caused by your own operation, and you can find ways to avoid them. For example, sand, once you mix a few grains of sand into the butter, and you are using a pointed grease nozzle, you will be so angry that you have to throw the grease gun away to relieve your hatred, and it is absolutely not good for the equipment. However, In fact, most of these are self-inflicted. Therefore, it is necessary to keep the butter used clean, do not refuel with unclean tools, and cover the oil container in time.
Responses
1. If there is a hard pull rod, you can pull the rod several times, so that the air inside can be mixed with the grease, and the problem may be solved by reducing the volume of a single air bubble, but the effect is not good every time.
2. The most effective method is deflation, but this requires hardware support. Some gun bodies have an exhaust port design. When you slowly open the exhaust screw, the air inside will come out.
3. The last one is the ultimate technique, and it has been tried and tested repeatedly. When you feel that there is gas in it and you can't pump it out, just turn the thread that combines the oil gun body and the pump body a few times or back and forth a few times (preferably sideways) Turn and press), guarantee your success. The reason is not difficult, that is, when you rotate, the gas bubbles inside are actually rotating to another part, and the original part is filled with lubricating oil, so the problem is solved.
