China Education Equipment Purchasing Network News: Checking the exterior lights for faults is an extremely simple task. It is not so simple to maintain a comprehensive system of exterior lamps. Here are a few tips for car maintenance:
Usually, it is difficult for the owner to realize that the headlights, taillights, turn signals or parking lights are no longer working properly before being reminded. Incidentally, the work of replacing burnt out light bulbs is very simple, and the cost of DIY is lower than the charging standard for maintenance of lighting systems in repair stations.
In more cases, the failure of the lamp is not limited to such small problems as burnt out bulbs, rusted sockets, or damaged plugs. It is often necessary to adopt professional diagnostic techniques to analyze the root cause of the failure. Even for low-cost cars, the internal and external lights are controlled by the main computer; while for luxury cars, only the headlights are controlled by 3 computers.
If the car is equipped with DRLs (Daytime Running Lamps), you must first understand the working principle of these devices. For example, some daytime running lights cannot be turned on before the engine is started; there are also some daytime running lights, if the parking brake has not been canceled, even if the engine has been started, the daytime running lights still cannot work properly. If the vehicle is equipped with light control lights (that is, when the external light is dim to a certain level, the system has the function of automatically turning on the headlights), you may wish to check the working conditions of the lights during the process from the weakest to the strongest state, of course Don't ignore the check to turn off the timer automatically. If the system is equipped with a timer, set it to the maximum delay.
If the headlights are damaged, they are usually replaced with similar lamps. Some cars are equipped with high-intensity discharge headlight HID, which generates high-density light sources through high-voltage arc discharge generated by its pre-designed electronic system. Note that ordinary quartz-halogen bulbs cannot be used here. In addition, the headlight lens should also be checked for cracks, because although the surface cracks will not affect the lighting performance of the headlights, moisture will penetrate into the lamp along the cracks, which will inevitably reduce the life of the bulb.
The calibration of the headlight illumination direction should also be included in the list of maintenance items, because in order to ensure the maximum safety of the driver's driving, the headlights must be able to provide good forward lighting for the driving vehicle.
Round folding table,High Quality Round folding table,Round folding table Details, CN
ZHEJIANG HUZOLI METAL PRODUCTS CO.,LTD , https://www.zlplasticfurniture.com