Ryobi DP121 - Manual (Page 20)

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 di-
ameter 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.
Fig. 21
Variable
sPeed
leVer
 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.
Fig. 20
clamP