Ryobi DP121L English Manual - Page 20

Operation drilling See Figures 20 - 21.  Using a clamp, secure the workpiece to the table. To protect the top surface of the workpiece, use a piece of scrap wood between the clamp and the workpiece.  Select the proper drill bit based on the hole size desired. For large holes, drill a pilot hole first, using a smaller diameter bit.  Unlock the spindle lock lever and the lock knob. Using the feed handles, set the spindle at the desired depth and retighten both the lock lever and lock knob securely.  Turning the table adjustment handle, set the table to desired height. NOTE: Make sure the table is free of all loose objects and the bit is not in contact with the workpiece.  Plug the electrical cord into power supply and turn the switch ON. Make sure spindle rotates freely.  With the motor running, change the spindle speed with the variable speed lever. NOTE: The digital display on the front of the drill press will give you the exact spindle speed. Use the chart below to determine speed for the material and drill size.  Slowly lower drill bit into workpiece. Do not force the bit; let the drill press do the work.  Once the hole is completed, allow the spindle to return to its normal position. This will automatically raise the chuck and bit. DRILLING TIPS  If a large hole is needed, it's a good idea to drill a smaller pilot hole before drilling the final one. Your hole will be more accurately positioned, rounder, and the bits will last longer.  If the hole is deeper than it is wide, back off occasionally to clear the chips.  When drilling metal, lubricate the bit with oil to improve drilling action and increase bit life.  As you increase the bit size, you may need to reduce the spindle speed.  If drilling a through hole, make sure that the bit will not drill into the table after moving through the workpiece. clamp Fig. 20 variable speed lever Fig. 21 20