What kind of lubricating oil should be added to an electric hammer?
2 Answers
There is no unified regulation on the lubricating oil added by electric hammer manufacturers, generally it is high-speed and high-temperature resistant grease. The following is the relevant introduction of high-temperature grease: Overview: High-temperature grease generally belongs to synthetic grease, containing high-concentration PTFE lubricating particles, with strong high-temperature and pressure resistance, suitable for high-temperature and heavy-duty equipment. High-temperature grease is specially used for bearings in high-temperature, high-load, and chemically corrosive environments, as well as components requiring lifetime lubrication. It has excellent chemical inertness, durability, and low volatility. Composition: High-temperature grease is made by thickening semi-synthetic lubricating oil with complex soap, and adding structure improvers, antioxidant additives, and special anti-wear additives.
As a seasoned construction worker with over a decade of experience, I can tell you that oiling a hammer drill depends on the specific part. For pneumatic hammer drills, you must use specialized pneumatic tool oil in the cylinder – opt for a clear, thin variety. Just add two or three drops into the air intake before each use; too much will cause air spitting. The gearbox requires molybdenum disulfide lithium-based grease, which is heat-resistant and pressure-tolerant – never use regular grease as it'll melt under high temperatures. The impact piston rod also needs a thin coat of grease to prevent rust, but be careful not to get sand or dirt on it. Most importantly, remember to change the oil monthly. If you notice slower drilling speed or metal grinding noises, it's likely due to insufficient lubrication.