Here are some operation tips for you
1.There is no need to add oil intentionally into the machine because it's an electric mini chainsaw. If you want to keep the saw chain sharp all the time, please drip any ordinary lubricating oil on the connection of the chain and the guide plate occasionally. Note: please use lubricating oil for machine rather than animal or vegetable oil.
2.If you want to adjust the tightness of the chain, please use the screwdriver to tighten or loosen the screw under the guide plate. Please kindly note that it is a normal phenomenon that the saw chain slips or off track after long time using, you just need to tighten it, then it will work well again as before.
3.Please fully recharge the battery with the charger attached in the package until it is fully charged, which can maximize battery life. The light will stay red while charging the battery pack. The green light wil be on after it's fully charged.
4.Don't install the battery unless you ready to use chainsaw. Please take off the battery after daily use.
5.More points for attention when using the mini chainsaw, please read the user manual in the package or in the product page for details.