Precautions when using chainsaws


1. Always check the tension of the saw chain. Please turn off the engine and wear protective gloves when checking and adjusting. When the tension is suitable, the chain can be pulled by hand when the chain is hung on the lower part of the guide plate.
2. There must always be a little oil splashed on the chain. The chain lubrication and oil level in the oil tank must be checked every time before work. Chains must not work without lubrication, as working with dry chains will result in damage to the cutting device.
3. Never use old oil. Old oil cannot meet the lubrication requirements and is not suitable for chain lubrication.
4. If the oil level in the fuel tank does not decrease, it may be that the lubrication transmission is faulty. The chain lubrication should be checked and the oil circuit should be checked. A poor oil supply can also result from a contaminated filter screen. The lubricating oil screen in the oil tank and pump connecting line should be cleaned or replaced.
5. After replacing and installing a new chain, the saw chain needs 2 to 3 minutes of running-in time. Check chain tension after break-in and readjust if necessary. A new chain requires more frequent tensioning than a chain that has been used for a while. The saw chain must be attached to the lower part of the guide bar when it is cold, but the saw chain can be moved over the upper guide bar by hand. Re-tension the chain if necessary. When the working temperature is reached, the saw chain expands and sags slightly, and the transmission joint at the lower part of the guide plate cannot be disengaged from the chain groove, otherwise the chain will jump and the chain needs to be re-tensioned.
6. The chain must be relaxed after work. Chains shrink as they cool, and a chain that doesn’t loosen can damage the crankshaft and bearings. If the chain is tensioned under working conditions, the chain will shrink when it cools, and if the chain is too tight, the crankshaft and bearings will be damaged.
2