MasterForce 241-0313, Operator'S Manual

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Page 13
OPERATION
NOTICE: Rotate the chuck body in the
direction of the arrow marked GRIP to
close the chuck jaws. Do not use a
wrench to tighten or loosen the chuck
jaws.
4. Tighten the chuck jaws securely on the
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. This could cause the drill
bit to be ejected from the drill, resulting in
possibly serious personal injury or
damage to the chuck.
REMOVING bITS
1. Lock the trigger switch by placing the
direction of rotation selector in the
OFF (center) position.
2. Open the chuck jaws.
NOTICE: Rotate the chuck body in the
direction of the arrow marked OPEN to
close the chuck jaws. Do not use a
wrench to tighten or loosen the chuck
jaws.
3. Remove the drill bit.
DRILLING (fIG. 10)
1. Check the direction-of-rotation selector
for the correct setting.
2. Secure the material to be drilled in
a vise or with clamps to keep it from
turning as the drill bit rotates.
3. Hold the drill firmly and place the
bit at the point to be drilled.
4. Depress the trigger switch to start the
drill.
5. 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.
6. When drilling hard, smooth surfaces,
use a center punch to mark the desired
location of the hole. This will prevent the
drill bit from slipping off center as the
hole is started.
7. When drilling metals, use 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.
8. 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.
WARNING:
This drill/driver is
equipped with an electric brake. When the
brake is functioning properly, sparks may
be visible through the vent slots in the
housing. This is normal and is the action
of the brake.
WOOD DRILLING
For maximum performance, use high speed
steel or brad point bits for wood drilling.
1. Begin drilling at a very low speed to
prevent the bit from slipping off the
starting point.
2. Increase speed as the drill bit bites
into the material.
FIG. 10