Craftsman 11576 Manual De Usuario

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8 - English
OPERATION
WARNING:
  Do not hold the chuck body with one 
hand and use the power of the drill to tighten the 
chuck jaws on the drill bit. The chuck body could 
slip in your hand or your hand could slip and come 
in contact with rotating drill bit. This could cause an 
accident resulting in serious personal injury.
INSTALLING BITS
See Figures 5 - 6, page i and ii.
  Lock the switch trigger by placing the direction of rota-
tion selector in center position. 
  Open or close the chuck jaws to a point where the 
opening is slightly larger than the bit size you intend to 
use. Also, raise the front of the drill slightly to keep the 
bit from falling out of the chuck jaws.
Insert the drill bit.
Tighten the chuck jaws on the drill bit.
WARNING: 
Make sure to insert the drill bit straight 
into the chuck jaws. Do not insert the drill bit into 
the chuck jaws at an angle then tighten, as shown 
in figure 6, page ii. This could cause the drill bit to 
be thrown from the drill, resulting in possible serious 
personal injury or damage to the chuck.
Rotate the chuck clockwise to tighten the chuck jaws 
securely on the bit.
 
NOTE: Rotate the chuck body in the direction of the 
arrow marked 
LOCK to tighten the chuck jaws. Do not 
use a wrench to tighten or loosen the chuck jaws.
REMOVING BITS
Lock the switch trigger by placing the direction of rota-
tion selector in center position. 
Rotate the chuck sleeve clockwise to open the chuck 
jaws.
 
NOTE:  Rotate the chuck body in the direction of the 
arrow marked 
UNLOCK to loosen the chuck jaws. Do 
not use a wrench to tighten or loosen the chuck jaws.
Remove the drill bit.
DRILLING
See Figure 7, page ii.
  Check the direction of rotation selector for the correct 
setting (forward or reverse).
  Secure the material to be drilled in a vise or with 
clamps to keep it from turning as the drill bit rotates.
  Hold the drill firmly and place the bit at the point to be 
drilled.
  Depress the switch trigger to start the drill.
  Move the drill bit into the workpiece, applying only 
enough pressure to keep the bit cutting. Do not force 
the drill or apply side pressure to elongate a hole. Let 
the tool do the work. 
WARNING:
 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 drill bit from slipping off-center as the hole 
is started.
  When drilling metals, 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. 
  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.