The electrical system of the rotary excavator is like the "nervous system" of the equipment, precisely controlling the operation of each function, from power output to operation command response, all rely on the stable operation of this precision system. In the daily maintenance process, as the core energy storage unit of the electrical system, the battery's status directly affects whether the equipment can start and operate normally, and it needs to be a key maintenance object.
When checking the battery, the first thing to do is to observe the electrolyte level. Under normal circumstances, the liquid level should be between the upper and lower limit markings on the casing. If the liquid level is found to be below the lower limit, specialized distilled water or battery replenishment solution must be added. Ordinary tap water must not be used, as impurities in it may cause internal short circuits in the battery and accelerate electrode aging. It is recommended to conduct a liquid level check once a week, especially during high-temperature operations or frequent use of equipment, to shorten the inspection cycle. The maintenance of terminal posts cannot be ignored either. Once the positive and negative terminals oxidize or loosen, it can cause poor circuit contact, leading to difficulties in starting and unstable voltage. During daily inspections, it is necessary to carefully check whether white or green oxides are attached to the surface of the terminal posts. If there is oxidation, use fine sandpaper to gently polish until a metallic luster is exposed, and then apply a layer of Vaseline evenly on the surface. This protective film can effectively isolate air and moisture, prevent the terminal from oxidizing again, and enhance conductivity. In terms of usage habits, it is advisable to avoid starting the engine frequently. Every time it is started, the battery will instantly release a large amount of current, and frequent operation will cause the battery to over discharge, shortening its service life. In addition, when the device is expected to be idle for more than a week, it is necessary to disconnect the negative terminal of the battery. This operation can cut off the static current circuit of the equipment, prevent the on-board electronic components from continuously consuming power in standby mode, and avoid damage to the battery due to excessive self discharge. It is worth noting that when reconnecting the negative pole, it is necessary to first confirm that the device is in a shutdown state, and then check whether the instrument displays are normal after connection. For electrical circuits, it is necessary to regularly check for damage, aging, or short circuits. Pay special attention to the joints of the circuit to ensure a secure connection and good insulation. After working in rainy or humid environments, it is necessary to promptly clean the water stains on electrical components to prevent damage caused by moisture. If a malfunction is found in the electrical system, do not disassemble and repair it at will. Contact professional technicians in a timely manner to avoid causing greater losses due to improper operation.
Proper daily maintenance of rotary excavators is the key to ensuring stable equipment operation and reducing maintenance costs. The maintenance of every component, from the engine to the electrical system, is crucial. Only by implementing maintenance work in every detail can the rotary excavator always maintain optimal performance and safeguard the construction of the project. Before starting the equipment next time, why not refer to this guide to conduct a comprehensive inspection and maintenance for your "construction team"!
