Milwaukee 0233-20 Manual Del Operador página 5

WARNING
To reduce the risk of injury,
always unplug tool before attaching or remov-
ing accessories or making adjustments. Use
only specifi cally recommended accessories.
Others may be hazardous.
WARNING
To reduce the risk of injury,
wear safety goggles or glasses with side
shields.
Using Forward/Reverse Switch
Fig. 9
Forward
Trigger
Reverse
1. For forward (clockwise) rotation, push the for-
ward/reverse switch to FWD as shown.
2. For reverse (counterclockwise) rotation, push
the forward/reverse switch to REV as shown.
Although an interlock prevents reversing the
tool while the motor is running, allow it to come
to a full stop before reversing.
WARNING
To reduce the risk of injury,
keep hands and cord away from the bit and
all moving parts.
Starting, Stopping and Controlling Speed
1. To start the tool, pull the trigger.
2. To stop the tool, release the trigger.
3. To vary the drilling speed, simply increase or
decrease pressure on the trigger. The further
the trigger is pulled, the greater the speed.
OPERATION Locking Trigger
The lock button holds the trigger in the ON position
for continuous full speed use.
Fig. 10
Lock button
1. To lock the trigger, hold the lock button in while
pulling the trigger. Release the trigger.
2. To unlock the trigger, pull the trigger and re-
lease. The lock button will pop out.
WARNING
To reduce the risk of explo-
sion, electric shock and property damage,
always check the work area for hidden pipes
and wires before drilling.
Drilling
1. Before drilling, be sure the workpiece is clamped
securely. Use backing material to prevent dam-
age to the workpiece during breakthrough.
2. When starting a hole, place the drill bit on the
work surface and apply fi rm pressure. Begin
drilling at a slow speed, gradually increasing
the speed as you drill.
3. Always apply pressure in line with the bit. Use
enough pressure to keep the drill biting, but do
not push hard enough to stall the motor.
4. Reduce pressure and ease the bit through the
last part of the hole. While the tool is still running,
pull the bit out of the hole to prevent jamming.
Stalling
If the tool seems as if it is about to stall, maintain a
fi rm grip and reduce pressure slightly to allow the
bit to regain speed. If the tool does stall, release
the trigger immediately. Reverse the motor, remove
the bit from the work and start again. Do not pull
the trigger on and off in an attempt to start a stalled
drill. This can damage the drill.
8
APPLICATIONS
Wood
Flat Boring Auger
Cat. No. Ship Auger Bits
Bits Bits
0233-20 1" N/R
0234-6 1-1/2" 1-1/2" 1-1/4"
RAD low 1-1/2" 1-1/2" 1-1/2"
RAD high 1-1/2" 1-1/8"
0235-21 1-1/2" 1-1/2" 1-1/4"
1-1/2" 1-1/2"
0244-1 1-1/2"
RAD low 1-1/2" 1-1/2" 1-1/2"
RAD high 1-1/2" 1-1/2" 1-1/4"
N/R = Not recommended
Selecting Bits
When selecting a bit, use the right type for your job.
For best performance, always use sharp bits.
Drilling in Wood, Composition Materials and
Plastic
When drilling in wood, composition materials and
plastic, start the drill slowly, gradually increasing
speed as you drill. When using twist drill bits, pull
the bit out of the hole frequently to clear chips from
the bit fl utes. Use low speeds for plastics with a
low melting point.
Drilling in Masonry
When drilling in masonry, use high speed carbide-
tipped bits. Drilling soft masonry materials such as
cinder block requires little pressure. Hard materials
like concrete require more pressure. A smooth,
even fl ow of dust indicates the proper drilling rate.
Do not let the bit spin in the hole without cutting.
Do not use water to settle dust or to cool bit. Both
actions will damage the carbide.
Drilling in Metal
When drilling in metal, use high speed steel twist
drills or hole saws. Use slow speeds for hard metals
and high speeds for softer metals. Lubricate drill
CAPACITIES
Steel
Selfeed Hole Twist Hole
Bits Saws Drill Saws
N/R N/R 1-3/4" 3/8"
2" 4" 1/2"
2-1/4" 4-1/2" 1/2" 2-1/8"
1" 1-1/2" 2-3/4" 1/2" 1-1/2"
2" 4" 1/2"
2-1/4" 4-1/2" 1/2" 2-1/4"
2-9/16" 5" 1/2" 2-1/4"
1-3/4" 3-1/4" 1/2" 1-3/4"
bits with cutting oil when drilling in iron or steel. Use
a coolant when drilling in nonferrous metals such
as copper, brass or aluminum. Back the material to
prevent binding and distortion on breakthrough.
Driving Screws
When driving screws, use the proper screwdriver
bit for your job. After drilling pilot and shank holes,
start the screw slowly and increase the speed as
driving progresses. Set the screw by slowing to a
stop. Do not run screws down at excessive speeds.
To remove screws, reverse the motor.
WARNING
High rotational force. To
reduce the risk of injury, always hold or brace
securely. Always use side handle on tools
rated 1200 RPM or less.
Bit Binding
A high rotational force occurs when a bit binds. If
the bit binds, the tool will be forced in the opposite
direction of the bit rotation (See Fig. 12 - 14). Bits
may bind if they are misaligned or when they are
breaking through a hole. Wood boring bits can also
bind if they run into nails or knots. Be prepared for
bit binding situations.
9
Masonry
Carbide-
Tipped Bits
1" 3/8"
2" 1/2"
9/16"
7/16"
2" 1/2"
9/16"
5/8"
1/2"