You can cut through wood with the product in 2 different positions.
To cut on the pull stroke is when you cut with the bottom of the guide bar. The saw chain pulls through the tree when you cut. In this position you have better control of the product and the position of the kickback zone.
To cut on the push stroke is when you cut with the top of the guide bar. The saw chain pushes the product in the direction of the operator.
WARNING:
If the saw chain is caught in the trunk, the product can be pushed at you. Hold the product tightly and make sure that the kickback zone of the guide bar does not touch the tree and causes a kickback.