Precautions for operating asphalt spreading trucks
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Precautions for operating asphalt spreading trucks
Release Time:2024-02-01
Asphalt spreading trucks are used in highway construction and highway maintenance projects. They can be used for upper and lower seals, permeable layers, waterproof layers, bonding layers, asphalt surface treatment, asphalt penetrating pavements, fog seals, etc. on different grades of highway pavements. During project construction, it can also be used to transport liquid asphalt or other heavy oil.
Asphalt spreading trucks are used to spread the permeable oil layer, waterproof layer and bonding layer of the bottom layer of asphalt pavement on high-grade highways. It can also be used in the construction of county and township-level highway asphalt roads that implement layered paving technology. It consists of car chassis, asphalt tank, asphalt pumping and spraying system, thermal oil heating system, hydraulic system, combustion system, control system, pneumatic system and operating platform.
Precautions for operating asphalt spreading trucks_1Precautions for operating asphalt spreading trucks_2
Proper operation and maintenance of asphalt spreading trucks can not only extend the service life of the equipment, but also ensure the smooth progress of the construction project. So what issues should we pay attention to when operating asphalt spreading trucks?
1. Before use, please check whether the position of each valve is correct and make preparations before operation. After starting the motor of the asphalt spreading truck, check the four thermal oil valves and air pressure gauge. After everything is normal, start the engine and the power take-off starts to work. Try running the asphalt pump and circulate it for 5 minutes. If the pump head shell is in trouble, slowly close the thermal oil pump valve. If the heating is insufficient, the pump will not rotate or make noise. You need to open the valve and continue to heat the asphalt pump until it can work normally. During operation, the asphalt liquid must maintain an operating temperature of 160~180℃ and cannot be filled. Too full (pay attention to the liquid level pointer during the process of injecting asphalt liquid, and check the tank mouth at any time). After the asphalt liquid is injected, the filling port must be closed tightly to prevent the asphalt liquid from overflowing during transportation.
2. During operation, the asphalt may not be pumped in. In this case, it is necessary to check whether the interface of the asphalt suction pipe is leaking. When the asphalt pump and pipeline are blocked by condensed asphalt, you can use a blowtorch to bake it. Do not forcefully turn the pump. When baking, be careful to avoid directly baking ball valves and rubber parts.
3. When spraying asphalt, the car keeps traveling at a low speed. Do not step on the accelerator hard, otherwise it may cause damage to the clutch, asphalt pump and other components. If you are spreading 6m wide asphalt, you should always pay attention to the obstacles at both ends to prevent collision with the spreader pipe. At the same time, the asphalt should be kept in a large circulation state until the spreading operation is completed.
4. After every day's operation, if there is any remaining asphalt, it must be returned to the asphalt pool, otherwise it will condense in the tank and make it impossible to operate next time.