Ryobi P1833 Operation Manual - Page 7

OPERATION P277 DRILL/DRIVER  Depress the switch trigger to start the drill.  Move the bit into the workpiece, applying only enough pressure to keep the bit cutting or driving the screw. Do not force the drill or apply side pressure to elongate a hole. Let the tool do the work. WARNING: When drilling, be prepared for binding at bit breakthrough. When these situations occur, drill has a tendency to grab and kick opposite to the direction of rotation and could cause loss of control when breaking through material. If not prepared, this loss of control can result in possible serious injury.  When drilling hard, smooth surfaces, use a center punch to mark the desired hole location. This will prevent the bit from slipping off-center as the hole is started.  If the bit jams in the workpiece or if the drill stalls, stop the tool immediately. Remove the bit from the workpiece and determine the reason for jamming. NOTE: This drill has an electric brake. When the switch trigger is released, the chuck stops turning. When the brake is functioning properly, sparks will be visible through the vent slots on the housing. This is normal and is the action of the brake. WOOD AND METAL DRILLING For maximum performance, use high speed steel bits for wood or metal drilling. Select drilling mode. Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Wood Drilling  Increase the speed as the drill bit bites into the material.  When drilling through holes, place a block of wood behind the workpiece to prevent ragged or splintered edges on the back side of the hole. Metal and Steel Drilling  Use a light oil on the drill bit to keep it from overheating. The oil will prolong the life of the bit and increase the drilling action.  Maintain a speed and pressure which allows cutting without overheating the bit. Applying too much pressure will: • Overheat the drill; • Wear the bearings; • Bend or burn bits; and • Produce off-center or irregular-shaped holes.  When drilling large holes in metal, start with a small bit, then finish with a larger bit. P235 IMPACT DRIVER INSTALLING/REMOVING BELT CLIP See Figure 1, page 11. The belt clip may be installed on either side of the housing.  Align the holes in the belt clip with the holes in the ­housing.  Install the screws to secure the belt clip in place.  To uninstall, remove the screws, then remove the belt clip. INSTALLING/REMOVING BITS See Figure 4, page 11.  To install bits: Lock the switch trigger and remove the battery pack.  Slide the coupler forward and hold in position.  Insert bit straight into coupler.  Slide the coupler back slowly and release. NOTE: Use only impact quality bits with a locking groove, minimum length of 2 in. WARNING: Make sure the bit is secured in the coupler before using the impact driver. Failure to do so could cause serious personal injury.  To remove bits: Lock the switch trigger and remove the battery pack. Point the nose of the tool away from you.  Slide the coupler forward and hold in position.  Pull the bit straight out of the coupler. 7 - English