BLACK&DECKER 9049A Manual De Instrucciones página 7

154499/9049A/1284 5/1/02
removing fasteners. When moving from forward to reverse, or vice
versa, always release the trigger switch first.
Keyless Chuck
Your tool features a keyless chuck for greater convenience. To
insert a drill bit or other accessory, follow the steps listed below.
1. Grasp the rear half of the chuck with one hand and use your
other hand to rotate the front half COUNTERCLOCKWISE, as
shown in Figure 4. Rotate far enough so that the chuck opens
sufficiently to accept the desired accessory.
4
8:54 AM Page 4
R
5
2. Insert the bit or other accessory about 3/4" (19mm) into the
chuck and tighten securely by holding the rear half of the chuck
and rotating the front portion clockwise. To release the
accessory, repeat step 1 listed above.
Do not lubricate the three chuck jaws or the inside of the chuck;
however, a light film of oil can be applied to the outside of the chuck
to prevent any rust from forming.
Drilling (Figure 5)
BE SURE REVERSING BUTTON IS IN THE ''FORWARD''
POSITION.
1. Use sharp drill bits only. For WOOD, use twist drill bits, spade
bits, power auger bits or hole saws. For METAL, use high-
speed steel twist drill bits. For MASONRY, such as brick,
cement, cinder block, etc., use carbide-tipped bits.
2. Be sure that the material to be drilled is anchored or clamped
firmly; if drilling thin material, use a wood ''back-up'' block to
prevent damage to material.
3. Centerpunch an indentation at the point to be drilled. This will
overcome tendency of bit to slip around on a smooth surface.
Place the tip of bit in indentation and turn drill ON.
4. Always apply pressure in a straight line with the bit. Use
enough pressure to keep the drill biting, but do not push hard
enough to stall motor or deflect bit. To minimize stalling when
breaking through the material, reduce the pressure on drill and
ease the bit through last part of the hole.
5. Hold drill firmly to control the twisting action of the drill.
6. When drilling larger holes, it is helpful to drill a small pilot
hole first.
4