There is a saying that small mixers require seven points of maintenance and three points of repair. Although small mixers are still very large, their internal parts are very fragile. Only regular inspection and maintenance can extend the service life of your car. Some drivers may operate improperly during the daily maintenance of the mixer truck. Do you win the bidding?
1. Grind the bearing bush with abrasive cloth
The scraping technology is difficult for inexperienced maintenance workers to master. For this reason, some people use abrasive cloth to replace the scraping in order to expand the contact area between the bearing bush and the crankshaft when replacing the bearing bush. This method will make the hard particles on the abrasive cloth embedded in the bearing alloy, accelerate the wear of the journal during the operation of the diesel engine, and shorten the service life of the crankshaft.
2. Open flame heating piston
Experienced maintenance workers know that before installing the piston pin, the piston should be heated and expanded. In order to save time, some people directly heat the piston with open fire. In this way, the piston will be deformed due to uneven heating. The correct way is to put the piston into the hot oil for uniform heating.
3. Do not change the oil for a long time
Changing the oil is a point that many drivers tend to overlook. If you only add oil blindly for a long time, many parts of the engine will lack lubrication, and wear will increase in the long run. During the operation of the diesel engine, many impurities will also be absorbed into the engine oil. If the engine oil is not changed for a long time, it may cause problems such as burning of the bearing and holding of the shaft.
These misunderstandings about the maintenance of small mixers are explained here. If you have any doubts or needs about this, you can come to our website at any time http://www.zkzsljbc.com Consult and understand!