Ryobi DP120 - Manual (Page 14)

14
INSTALLING BITS
See Figure 16.
■ Unplug your drill press.
■ Open or close the chuck jaws to a point where the opening
is slightly larger than the drill bit you intend to use.
■ Insert drill bit into chuck the full length of the jaws.
WARNING:
Do not insert drill bit into chuck jaws and tighten as shown
in figure 16. This could cause drill bit to be thrown from
your drill resulting in possible serious personal injury or
damage to your chuck.
■ Tighten chuck jaws securely using the chuck key provided.
DO NOT use a wrench to tighten or loosen the chuck
jaws.
■ Remove chuck key and return to storage area.
DRILLING
See Figure 17.
■ Using a C-clamp or similar clamping device, secure the
workpiece to the work table. To protect the surface of the
workpiece, use a piece of scrap 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.
■ Set table assembly to desired height. If desired, set feed
shaft at desired spindle depth.
■ Make sure the work table is free of all loose objects and
that the bit is not in contact with the workpiece.
■ Plug electrical cord into power supply and turn switch ON.
Make sure spindle rotates freely.
■ Slowly lower drill bit into workpiece. Do not force the bit,
let the drill press do the work.
■ Once the hole is completed, raise the spring-loaded feed
shaft to its normal position. This will automatically raise
the chuck and bit.
DRILLING TIPS
If the hole is large, 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 also use a coolant.
As you increase the drill 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 your work.
Fig. 17
12 Dr ll i Press
ON
OPERATION
C-CLAMP
Fig. 16
WRONG
ON