How Often Should Car Generator Carbon Brushes Be Replaced?
2 Answers
Here is an introduction to the replacement interval for car generator carbon brushes: 1. Dust-free and sand-free areas: In environments with good conditions, minimal dust or sand, and low air humidity, they can last over 100,000 kilometers. 2. Rural dirt roads: In dusty conditions, replacement is needed around 50,000 kilometers. Below are extended details on related content: 1. Carbon brushes: Carbon brushes are wear-prone components, and their wear is difficult to observe. The generator must be disassembled for inspection, so carbon brushes require maintenance. 2. Lifespan: Under good commutation conditions, carbon brushes can last up to 2,000 hours, but in extreme conditions, they might only last 1,000 hours. Generally, their lifespan ranges from 1,000 to 3,000 hours.
I've been driving for over ten years and have replaced the generator brushes three times. There's no fixed replacement interval for these; it mainly depends on your driving conditions. I remember the last time I replaced them was at 180,000 kilometers when I noticed the headlights dimming and the battery light on the dashboard flickering occasionally. Upon inspection, the brushes were worn down to just a tiny tip. I usually have the generator checked by a mechanic every 100,000 kilometers, as worn brushes can lead to the entire generator failing. If you frequently drive long distances or have installed a high-power audio system, it's advisable to check them earlier, around 60,000 to 80,000 kilometers. Replacing the brushes costs just around a hundred bucks, which is much more economical than replacing the entire generator.
