Long-term maintenance of excavator electrical components

The following is the content after smoothing for you. The overall expression is more fluent and natural, and it enhances readability and warning to a certain extent:

1. It is very important to check the electrolyte level of the battery regularly. Once the liquid level is found to be too low, distilled water should be added in time. In emergency situations, bottled pure water can also be used as a temporary substitute, but this is only a stopgap measure. Distilled water still needs to be added as soon as possible to ensure the normal performance of the battery.

2. The area around the battery should be kept open, and it is strictly forbidden to place any objects near it. Many tragic fire accidents are caused by battery short circuits, so it is important to be vigilant and prevent them before they happen.

3. The harm of dust to electrical components should not be underestimated. On the one hand, dust will hinder the heat dissipation of electrical components, causing their temperature to continue to rise. In severe cases, it may even burn the hardware and cause equipment damage.

On the other hand, dust may also enter the wiring harness plug, causing poor contact, which in turn affects the normal operation of the machine, and even worse, it may cause a short circuit and cause a fire.

4. It is very necessary to keep the cab clean and hygienic. If there is unsealed food left in the cab, it is easy to attract small animals such as mice. Once these small animals chew the circuit, it will cause a short circuit, which will cause a fire and the consequences will be disastrous.

5. Before maintaining the electrical system, be sure to disconnect the negative terminal of the battery. This is an important measure to ensure the safety of maintenance personnel and avoid equipment damage, and it must not be neglected.

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