Ryobi P600 English Manual - Page 14

OPERATION OPERATING THE TRIMMER Before starting the trimmer, with the battery pack disconnected, make sure the bit is securely tightened in the collet and that the depth of cut is properly set. Never start the trimmer while the bit is in contact with the workpiece. After completing a cut, pull the bit slightly away from the cut surface. Turn the trimmer off and wait for the rotating bit to completely stop before completely removing the tool from the work surface. When cutting, locate the base of the trimmer over the work surface and firmly hold the body of the trimmer with your hand. Make sure the trimmer is running at full speed before contacting the workpiece. DIRECTION OF FEED AND THRUST See Figures 8 - 9. The trimmer motor and bit revolve in a clockwise direction. This gives the tool a slight tendency to twist in your hands in a counterclockwise direction, especially when the motor starts. Feed the trimmer into the workpiece from left to right. When fed from left to right, the rotation of the bit pulls the trimmer against the workpiece. If fed in the opposite direction, the rotation forces of the spinning bit will tend to throw the trimmer away from the workpiece, causing kickback. This could result in loss of control of the trimmer. Because of the extremely high speed of bit rotation during a proper feeding operation, there is very little kickback to contend with under normal conditions. However, should the bit strike a knot, hard grain, foreign object, etc. that would affect the normal progress of the cutting action, there will be a slight kickback. Kickback could be sufficient to spoil the trueness of your cut if you are not prepared. Such a kickback is always in the direction opposite the direction of bit rotation. To guard against kickback, plan your set-up and direction of feed so that you will always be thrusting the tool-to hold it against whatever you are using to guide the cut-in the same direction that the leading edge of the bit is moving. The thrust should be in a direction that keeps the sharp edges of the bit continuously biting straight into new (uncut) wood. trim end grains first trimmer feed direction bit rotation trimmer feed direction GUIDE OUTSIDE bit rotation Fig. 8 THRUST ROTATION GUIDE GUIDE INSIDE ROTATION GUIDE FEED FEED THRUST Fig. 9 trimmer feed direction 14