How to Sharpen A Chain Saw

chain saw

Chain saw is a tool for cutting wood using a chainsaw blade. It is composed of an engine, guide plate, and chain. Due to its strong practicality, it is favored by many people and is an essential tool for forest cleaning and household cutting. After using a chain saw for some time, the saw teeth may become dull and the cutting efficiency may decrease. This is closely related to the hardness of the cutting object and the operator's usage method. After the chain becomes dull, we usually replace it. Some consumers consider the economy of the product and choose to polish the dull chain.

The chain of a chainsaw has a lot of serrations, making it difficult to polish and requiring high technical skills from the operator. Because files belong to metal components, improper operation can damage the operator. Therefore, when polishing, attention should be paid to the use of standards and follow certain operating methods. The following are the specific operating methods.

How can the chain of a chainsaw be sharpened faster?

The method of filing saw chains is as follows:

  1. When using a file for the chainsaw chain, the file should not be pushed too fast or applied too forcefully to avoid tooth breakage (blade breakage).
  2. When filing the chain cutter head, it is sufficient to file 3 to 6 times to make the chain cutter head sharp. However, excessive filing can cause the chain cutter head to curl and reduce the lifespan of the file and cutter head.
  3. When filing the chain cutter head, after filing more than ten times, use the file to tap other metals several times and shake off the debris in the file teeth, and it can be used normally.
  4. The file should be kept away from moisture, oil, or other dirt to prevent rusting or slipping. It should not be stacked together with other hard tools, as this can damage the surface file teeth and affect the filing effect.
  5. Choosing a file with an ergonomic handle can make filing work easier and more efficient while reducing the risk of injury.
chain saw

Precautions when using a chainsaw

  1. Tools should be installed correctly, ensuring firmness and preventing loosening or detachment during use. Regularly check the tension of the saw chain. When checking and adjusting, please turn off the engine and wear protective gloves. The appropriate tension is when the chain-carrying strip is hung at the bottom of the guide plate, and the chain can be pulled by hand.
  2. There must always be a little oil splashing out on the chain. Before starting work, it is necessary to check the lubrication of the saw chain and the oil level in the lubrication oil tank. The chain cannot work without lubrication. Working with a dry chain can cause damage to the cutting device.
  3. Never use old engine oil. Old engine oil cannot meet lubrication requirements and is not suitable for chain lubrication.
  4. Before starting work, ensure that the tools have been thoroughly inspected and that there is no damage or malfunction to the tools. If the oil level in the tank does not decrease, it may be due to a malfunction in lubrication delivery. Chain lubrication should be checked and oil circuits should be checked. Passing through contaminated filters can also lead to poor lubrication oil supply. The lubricating oil filter screen in the oil tank and pump connection pipeline should be cleaned or replaced.
  5. After replacing and installing the new chain, the saw chain requires 2 to 3 minutes of running in time. After running in, check the tension of the chain and readjust it if necessary. The new chain requires more frequent tensioning compared to the chain that has been used for a period of time. When in a cold state, the saw chain must adhere to the lower part of the guide plate, but it can be moved by hand on the upper guide plate. If necessary, tighten the chain again. When the working temperature is reached, the saw chain expands slightly and sags. The transmission joint under the guide plate cannot detach from the chain groove, otherwise, the chain will jump and need to be re-tensioned.
  6. The chain must be relaxed after work. The chain will contract during cooling, and a chain that is not relaxed will damage the crankshaft and bearings. If the chain is tensioned during operation, it will contract during cooling, and if the chain is too tight, it will damage the crankshaft and bearings.
  7. Pay attention to the surrounding environment to ensure that it does not pose a danger to other people or equipment. During the operation, it is important to maintain a safe distance and avoid excessive pressure to prevent accidental injury. Keep the tools clean, and regularly maintain and upkeep them to extend their service life. After use, turn off the air source and store it in a suitable place, waiting for the next use.

In short, safety is the primary consideration when using a chainsaw. When using a chain saw for cutting operations, relevant safety operating procedures must be followed to ensure personal and equipment safety.

Chain Saw Installation

Selection of Chain Saw Oil

Chain saw operation requires the use of gasoline, engine oil, and chain saw chain lubricant:

  1. Only unleaded gasoline of grade 90 or above can be used for gasoline. When adding gasoline, the fuel tank cap and the surrounding area of the refueling port must be cleaned before refueling to prevent debris from entering the fuel tank. The chain saw should be placed on a flat surface with the fuel tank cover facing upwards. When refueling, do not let gasoline spill out and do not fill the fuel tank too full. After refueling, make sure to tighten the fuel tank cap as tightly as possible by hand.
  2. Only high-quality two-stroke engine oil can be used to ensure a longer engine life, and ordinary four-stroke engines should not be used. When using other two-stroke engine oils, their model should reach the quality level of TC. Poor-quality gasoline or engine oil can damage the engine, sealing rings, oil ducts, and fuel tanks.
  3. Mixing of gasoline and engine oil in a ratio of 1:25 using high-quality two-stroke engine oil specifically designed for TC-grade chainsaw engines.
  4. The mixing method is to pour engine oil into a fuel tank that is allowed to be filled with fuel, then fill it with gasoline, and mix evenly. The mixture of gasoline and engine oil will age, and the general usage amount should not exceed one month. Special attention should be paid to avoiding direct contact between gasoline and skin, and to avoid breathing the gas emitted by gasoline.
  5. Use a high-quality chain saw chain lubricating oil and maintain the lubricating oil level not lower than the oil level to reduce wear on the chain and teeth. Due to the fact that chain saw lubricating oil is completely discharged into the environment, ordinary lubricating oil is petroleum-based and non-degradable, which can pollute the environment. It is recommended to use the biodegradable and environmentally friendly chain saw oil as much as possible. Many countries have strict regulations on this to avoid environmental pollution. Please pay attention to local emission standards when using.

The chain of an electric saw requires high technical requirements during polishing, and the polishing time for a single saw chain is relatively long. Therefore, many merchants choose to directly replace the chain. If you need to replace the chain or if your chain saw encounters some malfunctions during use, you can contact us. As a senior supplier of landscape products, Yeoman Power will provide you with a comprehensive range of products and technical solutions.


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