Fire truck is designed and manufactured to be suitable for firefighters to use and equipped with various types of fire fighting equipment or fire extinguishing agents according to the needs of fire fighting and rescue operations. During the use of the fire truck, due to various operating conditions such as friction, vibration, impact and natural conditions, various components and parts will have varying degrees of looseness, deformation, wear, corrosion and damage. With the increase in mileage, the condition of the vehicle gradually deteriorates and the failure rate increases, which will also lead to a decline in power, economy, safety and reliability, and even unexpected mechanical accidents or traffic accidents. Therefore, daily fire truck maintenance work Without delay.

1. Inspection and maintenance of equipment box

The equipment box is mainly used to store special equipment for fire fighting and rescue. It is the most commonly used and the most overlooked place. The quality of the equipment box will affect the service life of the equipment. Rubber or other soft objects should be used to isolate or protect the friction equipment. Secondly, always check whether there is water in the equipment box, whether the fixed bracket is stable, whether the curtain door is opened and closed flexibly, whether it is deformed or damaged, whether there is oil shortage in the lubricating groove of the door, etc., and if necessary, add grease protection.

2. Inspection and maintenance of fire pump

The fire pump is the "heart" part of the fire truck. The maintenance of fire pumps directly affects the effectiveness of fire fighting operations. Therefore, in the process of inspecting and maintaining the fire pump, you must be careful, and if any fault is found, it should be eliminated in time. Generally, every rotating part of the fire pump should be filled with grease every 3 to 6 hours. It is necessary to regularly test the main technical parameters of the fire pump's maximum water absorption depth, water diversion time, and maximum flow rate. If there is a big difference from the normal performance, it should be checked and excluded. Pay attention to the following conditions during inspection and maintenance: If you use unclean water sources, clean the pumps, tanks and pipelines; after using foam, clean the pumps, foam proportional mixers and all connecting pipelines in time; put the pumps clean Water in the pipeline; water ring pump diversion tank, wiper pump oil storage tank, water tank, foam tank must be filled with insufficient storage; check the base of the water monitor or foam monitor ball valve, clean the movable parts and apply force to lubricate the grease; The oil in the water pump and gear box should be inspected in time. If the oil has deteriorated (oil becomes milky white) or is lacking, it should be replaced or replenished in time.

3. Inspection and maintenance of fire truck tank

Since the fire truck tank is fully loaded with fire extinguishing agent for a long time, the immersion of the fire extinguishing agent will corrode the tank to a certain extent, especially for some fire trucks with long service, if they cannot be inspected and maintained in time, the rust spots will expand or even rust through The rusty residue from the container tank will be washed into the water pump when the fire truck discharges water, and the impeller will be damaged and the water pump will not work normally. In particular, the tanks of foam fire trucks are relatively corrosive. If inspected and maintained irregularly, the tanks are not only easy to rust through, but also cause pipeline blockages, fail to deliver foams normally, and fail fire fighting and rescue operations. Therefore, regular inspections of fire truck tanks should be organized. Once corrosion is found, effective measures should be taken in time to prevent the expansion of rust spots. The commonly used treatment method is to clean the rusted parts, dry them, apply epoxy paint or repair welding. The valves and pipelines of other parts related to the tank should also be checked and cleaned regularly, and the problems should be dealt with accordingly.

4. Vehicle condition inspection and maintenance

The main contents of the vehicle condition inspection include: whether the bolts on the clutch, transmission, transmission shaft, universal joint, reducer, differential, half shaft and other components on the transmission system are loose and damaged, and lack of oil; the brake pedal on the brake system Flexibility, the working condition of the air compressor, whether the air reservoir is intact, whether the brake valve is flexible, the wear of the brake pads of the wheels; whether the steering gear works normally, and the working conditions of important parts such as lights, wipers, and brake indicators. The faults detected should be eliminated in time. If the clutch does not disengage, the drive shaft, universal joint, reducer, differential, and axle bolts should be repaired and adjusted in time, and tighten and lubricate in time when there is no oil.

5. Inspection and maintenance of power take-off and drive shaft

Whether the power take-off and the water pump drive shaft are easy to use is the key to whether the fire truck can absorb and discharge water. Regularly check whether the power take-off is operating normally, whether there is any abnormal noise, whether the gear shifting and separation are smooth, whether there is automatic off-shift phenomenon, and if necessary, check and maintain it. To check whether the water pump drive shaft has abnormal noise, whether the fastening parts are loose or missing, whether the transmission shaft and the bearing need to be greased, tighten the bolts and grease if necessary.

6. Inspection and maintenance of electrical appliances and meters

Appropriate fuses should be selected for the electrical wiring of the vehicle to avoid damage to the original electrical components. Check whether the warning lights and siren systems are working properly. If there are any abnormalities, troubleshoot them in time. The inspection contents of the electrical appliances of the water system and lighting system include: equipment box lights, pump room lights, solenoid valves, liquid level indicators and digital tachometers, as well as the working conditions of various meters and switches.