Chain saw is one of the most widely used and most frequent power tools in garden machinery products. Because it has very sharp teeth and is used for high-speed cutting of wood, strict safety precautions must be taken when using it. The editor summarized a series of chain saw usage and maintenance skills and precautions, and shared with you.
1. Use reliable lubricating oil correctly
It is recommended to use high-quality saw chain and guide lubricating oil with low environmental pollution, such as lubricating oil with strong anti-aging ability and rapid biodegradation. If the anti-aging ability is low, the lubricating oil is easy to be resinized, which will form hard deposits that are difficult to remove, especially on the saw chain transmission parts, clutches and on the saw chain. In severe cases, the oil pump will be stuck. In addition, do not use waste lubricating oil. Waste lubricating oil does not have the required lubricating ability, and repeated contact with waste lubricating oil may cause skin cancer, and waste lubricating oil can also damage the environment.
2. Always keep the saw chain lubricated
The lubrication of the saw chain and guide plate is extremely important for the use of chain saws. The technician said that a small amount of lubricating oil must be thrown out of the saw chain all the time, and do not work without lubrication of the saw chain. If the saw chain runs dry, the cutting tool will soon be damaged and can no longer be repaired. Therefore, be sure to check the lubrication of the saw chain and the amount of lubricating oil in the oil tank before starting work.
Three, often check the tension of the saw chain
Compared with saw chains that have been in use for a long time, new saw chains need to be tightened more frequently. Generally, in the cold state, the saw chain is engaged on the lower side of the guide plate but can still be pulled along the guide plate by hand, indicating that the tension is correct. After reaching the operating temperature, the saw chain expands and begins to relax. Do not allow the drive chain link on the lower side of the guide plate to come out of the guide groove, otherwise the saw chain will fall off. Tighten the saw chain again if necessary. When the temperature drops, the saw chain shrinks. Adjust the saw chain at this time, otherwise the crankshaft and bearings will be damaged. Creep chain saws insist on choosing the best accessories, equipped with imported Origen saw chains, which greatly reduces the damage of the saw chain and prolongs the service life of the chain saw.
4. Details not to be overlooked
During the use of the chain saw, there are several operating details that require special attention from the user.
First, when starting the chain saw, do not pull the starting rope to the end. When starting, gently pull up the starting handle by hand until it reaches the stop position, and then pull it quickly and forcefully while pressing down the front handle.
Secondly, after the engine has been running at the maximum throttle for a long time, it needs to be idling for a period of time in order to cool the air flow and release most of the heat in the engine. This can avoid thermal overload of the components (ignition device, carburetor) installed on the engine.
Again, if the engine power drops significantly, it may be caused by a dirty air filter. Remove the carburetor box cover, take out the air filter, clean the dirt around the filter, separate the two parts of the filter, dust the filter with the palm of your hand, or blow it clean with compressed air from the inside to the outside. When reinstalling the air filter, remember to check whether the position of the air door and torsion spring is correct.
Five, the later maintenance is timely and thorough
The most important thing in the maintenance of a chain saw is the saw chain. A properly maintained and sharpened saw chain can be easily cut into wood with little pressure. During daily maintenance, pay attention to check whether there are cracks and broken rivets on the chain links of the saw chain. Replace any damaged or worn parts on the saw chain, and then match new parts with the same shape and size as the original one. Carbide saw chains are particularly resistant to wear.
For long-term storage of the chain saw, the fuel tank should be emptied and cleaned in a well-ventilated place. Always run the engine before the carburetor dries to prevent the carburetor diaphragms from sticking together. Remove the saw chain and guide plate, clean it, and spray it with anti-rust oil. Thoroughly clean the implements, especially the cylinder cooling fins and air filters.
Finally, everyone must understand the importance of chain saw operation, but the most important thing is to do it. Any irregular operation or untimely maintenance may cause certain safety hazards.