In recent years, foam fire trucks have gradually become the main combat vehicles for fire fighting. In terms of maintenance, they must be implemented in accordance with the requirements of national standard GB7956-1998 or industry standard GA39.5-92. It is important to do good maintenance and maintenance in combination with the actual conditions of foam operation and use. In terms of daily maintenance, in addition to routine maintenance of the engine, chassis and other parts of the car, the following maintenance work needs to be done.
1. Rinse after foaming operation
0.5MPa;完成冲洗后前，调整水泵转速使出口压力低于0.2MPa，打开泵引水开关，直到排气管中有净水流出。 In order to ensure the reliable operation of the fire pump, it is very important to flush the fire pump, drinking water pump and foam ratio mixer after using foam or salt water each time: connect the water treatment fire pump to the two outlets of the fire pump, and the foam outer suction pipe Connect it into clean water; after running the pump to draw in water, use low pressure to open the foam operation valve; open the water outlet of the pump and adjust the speed to increase the maximum pump pressure to 0.5MPa; before completing the flush, adjust the speed of the pump to The outlet pressure is lower than 0.2MPa. Turn on the pump water switch until there is purified water flowing out of the exhaust pipe.
2. Other maintenance precautions
Perform regular maintenance on all parts of the fire truck . The main ones are: ensuring that the fire truck has sufficient fuel, lubricating oil, cooling water, gas source, and power supply. 10摄氏度。 And regularly replace it; regularly check whether the circuit, oil circuit and fire protection system are normal, whether various meters, signals, switches, lighting are intact; water tanks, foam tanks are filled with water and foam liquid in accordance with the standard quantitative; regular (every two days ) Test run to check the engine, power take-off and transmission system, and conduct a vacuum test once a day to ensure that the performance of the water pump system meets the standards; various valves and moving parts should be regularly lubricated and regularly checked for flexibility; check the water pump, water pump gearbox 2. Whether the oil level at the power take-off is at the calibration position and whether the oil quality meets the standards. If the oil deteriorates, it should be replaced immediately; the vehicle should be wiped clean after use, and the outer surface should be dried with clean and soft cotton yarn or towel before getting on the car. Wax to ensure the gloss of the vehicle's exterior. At the same time, the pump room and equipment box should be kept clean, the equipment should be neatly placed, and the garage should be clean and dry. The temperature in the garage in the cold season should not be lower than 10 degrees Celsius.
The above points are a few suggestions from the fire extinguisher manufacturers to share with you.