Liugong loader is one of many construction machinery, which is widely used in various construction, mines, ports and other places. In the process of daily use, in order to ensure its normal operation and reduce the content of harmful substances in the exhaust emissions, the addition of urea solution is an indispensable link. For Liugong loaders, the amount of urea added is not fixed, and it will be affected by a variety of factors, such as the machine model, working hours, workload and the concentration of urea solution. Therefore, before adding urea, we need to consult the instruction manual of Liugong loader or consult professional technicians to understand the specific addition amount. Generally speaking, the urea solution tank capacity of Liugong loaders ranges from tens of liters to hundreds of liters. When adding urea, we need to determine the addition amount according to the actual situation of the machine and the working environment. If too little is added, the concentration of urea solution will be too low, which can not effectively reduce the harmful substances in the exhaust emissions, and if too much is added, it will cause waste and may cause some pollution to the environment. In addition to paying attention to the amount of urea added, we also need to check and replace the urea solution regularly to ensure that it functions properly. At the same time, when using Liugong loaders, we also need to pay attention to other maintenance matters, such as changing the engine oil, cleaning the air filter, etc., to prolong the service life of the machine and improve work efficiency. To sum up, the amount of urea added to Liugong loader needs to be determined according to the actual situation, and we need to carefully read the instruction manual and consult professional and technical personnel to ensure the normal operation of the machine and the compliance of environmental protection requirements.