In the course of daily correct operation of the suction truck, even if the maintenance work has been done well, but the vehicle will still increase with the mileage and the age of the car, part of the weight of the car will also be normal aging. Phenomenal, such as those on the suction truck that are more easily damaged: rubber hoses, oil pumps, shock absorbers, brake pads, timing belts, etc. Care must be taken with regard to the maintenance of these components, and these components play a more general role in every system. For example, the fuel pump in the fuel injection system, the vehicle of the general suction truck should be replaced or cleaned in two years, otherwise it will affect the entire oil supply process.

The fuel pump above the suction truck is mainly responsible for sucking the fuel out of the fuel tank, and after being pressurized, it is sent to the oil supply pipe. It is inside the fuel tank of the suction truck, at the start and in the engine. Work during operation. Better protection of the continuous supply of fuel to the injector. The structure of the oil pump is actually not very complicated, and it is relatively cheap in terms of replacement cost, but as long as it is a failure, it will cut off the oil pipeline of the entire suction truck , resulting in the vehicle engine. It is completely impossible to start.

The suction truck with a vehicle age of several years needs to take into account the wear of the timing belt. The timing belt in the engine distribution system also serves as a very important component. It is connected through the crankshaft and with a certain transmission ratio. To ensure the accuracy of the market price of intake and exhaust. The actual change of the timing belt itself is small and it is easy to compensate, so the service life of the belt will be shorter than those of metal gears, so regular and timely replacement is required. If the suction truck is suddenly in the process of driving or is still working on halfway, if the belt breaks suddenly, the maintenance cost will be higher than the normal replacement of the timing belt. However, some models will use a metal chain to connect the timing wheel of the engine cylinder head and the crankshaft timing wheel of the lower part in the realignment mechanism, and the metal chain basically does not need to be replaced. (Text / Sun Ni)

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