What safety precautions should be taken when replacing the bus air conditioning hose?

The bus air conditioning hose may age, become damaged, and need to be replaced in time after long-term use. However, replacing the air conditioning hose is a job that requires careful operation, and the following safety precautions must be taken.
First, before replacing the air conditioning hose, you must ensure that the power of the bus has been turned off and the engine has cooled down. This is to prevent electrical accidents or scalding accidents during the replacement process. At the same time, the handbrake of the bus needs to be pulled up to prevent the vehicle from moving.
Secondly, it is very important to choose the right air conditioning hose. Different models of buses may require air conditioning hoses of different specifications, so before replacement, you must ensure that the selected hose matches the bus's air conditioning system. At the same time, you also need to choose a hose of reliable quality to ensure its service life and safety.
When replacing the air conditioning hose, you need to use professional tools and equipment. For example, you need to use tools such as wrenches and screwdrivers to remove and install the hose connector. At the same time, you also need to use pressure testing equipment to detect whether the newly installed hose has leakage problems.
In the process of replacing the air conditioning hose, you need to pay attention to prevent the hose from being damaged. For example, when removing and installing the hose, you need to be careful to avoid twisting, stretching, or scratching the hose. At the same time, it is also necessary to prevent the hose from colliding with other parts to avoid damage to the hose.
Finally, after replacing the air conditioning hose, the air conditioning system needs to be tested and debugged. For example, it is necessary to start the bus engine, turn on the air conditioning system, check whether there is a leakage problem in the air conditioning hose, and whether the cooling effect of the air conditioning system is normal. If a problem is found, it needs to be repaired in time.