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High-quality brand power tools are known for their durability and long service life. As long as proper maintenance is performed, they don’t require excessive effort or hard work. One of the main things to watch out for is the carbon brushes. If the brushes wear out or break, it can lead to damage in the rotor. Therefore, regular inspection is important.
For example, if a new tool is used for more than 8 hours daily, it’s recommended to replace the brushes once a month. Make sure to use high-quality brushes, as lower-quality ones can shorten the life of the rotor. Just like butter has different grades, using the best quality brush will ensure better performance. Electric drills, concrete breakers, angle grinders, and similar tools only require attention to the brushes. These tools aren't typically damaged by lack of oil, but overuse can cause issues such as bearing failure or abnormal noise. Continuing to use them in this condition can lead to further damage.
The most critical tools to pay attention to are electric hammers and electric chisels. Electric hammers require lubrication with grease (butter), while electric chisels need oil. The type of lubricant you use directly affects how often you need to refill it. High-quality grease may last up to six months without needing to be added again. Lower-grade grease might need to be refilled every one to two months. It's better to add it once a month rather than overdo it.
To maintain your tools properly, check the dry bar inside. Add about two capfuls of oil from a mineral water bottle. Then, place the hammer head on the ground for around 30 seconds to let the oil settle. For electric shovels, oil is usually added through the motor, which helps it flow into the oil channels during operation. A ratio of 3 parts oil to 1 part grease is generally safe. You can even add oil in dirty conditions, as long as it doesn’t come into contact with electrical components. The key is to always keep the tool upright or pointing downward—this way, the oil will only leak into the cylinder and not into the motor or gear system.
It’s recommended to add oil to the gearbox every three months. Avoid adding too much at once, as these tools don’t require large amounts of lubricant. Overfilling can increase the risk of leaks. Proper maintenance ensures longer life and better performance.
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