CAUTION:*Always set the speed change lever fully to the correct position. If you operate the toolwith the speed change lever positioned half-way between the "I" side and "11" side, thetool may be damaged.*Do not use the speed change lever while the tool is running. The tool may be damaged.Adjusting the fastening torqueThe fastening torque can be adjusted in 17steps by turning the adjusting ring so thatits graduations are aligned with the pointeron the tool body. The fastening torque isminimum when the number 1 is alignedwith the pointer, and maximum when the8 marking is aligned with the pointer.The clutch will slip at various torque levelswhen set at the number 1 to 16. The clutchis designed not to slip at the 8 marking.Before actual operation, drive a trial screwinto your material or a piece of duplicatematerial to determine which torque level is required for a particular application.NOTE:*The adjusting ring does not lock when the pointer is positioned only half-way between*Do not operate the tool with the adjusting ring set between the number 16 and the 8the graduations.marking. The tool may be damaged.Screwdriving operationPlace the point of the driver bit in thescrew head and apply pressure to the tool.Start the tool slowly and then increase thespeed gradually. Release the trigger assoon as the clutch cuts in.