Using the Bosch GBH18V - 45CK rotary hammer is quite straightforward. First, if you're using it for the first time, make sure to check all the parts that come with it: the hammer, the auxiliary handle, and the carrying case. You'll need to get a CORE18V® High - Power Battery separately and insert it into the tool. To start, select the right mode for your task. You can choose between the rotary hammer mode for drilling holes in concrete or the hammer - only mode for chiseling. Use the Vario - Lock feature to adjust the chisel to the best angle for your work. When you start drilling or chiseling, the Soft Start function will gradually increase the speed, making it easier to control, especially in softer materials like brick or tile. Remember to hold the tool firmly with both hands, using the auxiliary handle for better stability. When you're done with your work, turn off the tool and remove the battery. As for maintenance, keep the tool clean after each use. Wipe off any dust or debris, especially from the air vents and the chuck. Check the chisel regularly for wear and tear and replace it if necessary. Store the tool in the provided carrying case in a dry place. Also, be careful when using the tool in binding conditions as the KickBack Control technology helps reduce sudden reactions, but it's still important to stay alert.
