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Milwaukee 2750-20 Manual Del Operador página 5

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1. For forward (clockwise) rotation, push the control
switch in the direction shown. Check the direction
of rotation before use.
2. For reverse (counterclockwise) rotation, push the
control switch in the direction shown. Check the
direction of rotation before use.
3. To lock the trigger, push the control switch to the
center position. The trigger will not work when the
control switch is in the locked position.
Always remove the battery pack before performing
maintenance or changing accessories. Always
lock the trigger or remove the battery pack before
storing the tool and any time the tool is not in use.
Selecting Hammer, Drill or Drive Action
(Cat. No. 2702-20)
1. To use the hammer-drilling
mode, rotate the application
selector collar until the hammer
symbol
appears in line with
the arrow. Apply pressure to the
bit to engage the hammering
mechanism.
NOTE: The number selected on
the torque selector collar has no
effect on operation of the drill in hammer mode.
NOTE: When using carbide bits, do not use water
to settle dust. Do not attempt to drill through steel
reinforcing rods. This will damage the carbide bits.
2. To use the drilling only mode,
rotate the application selector
collar until the drill symbol
appears in line with the arrow.
NOTE: The number selected on
the torque selector collar has no
effect on operation of the drill in
drilling mode.
3. To use the driving screws
mode rotate the application se-
lector collar until the drive symbol
appears in line with the ar-
row. Then rotate the torque se-
lector collar until the desired
clutch setting appears in line with
the arrow.
The adjustable clutch, when
properly adjusted, will slip at a
preset torque to prevent driving the screw too deep
into different materials and to prevent damage to
the screw or tool.
The torque specifications shown here are approximate
values obtained with a fully charged battery pack.
Cat. No. 2702-20
Clutch
Setting in. lbs
1-3
25-28
Small screws in softwood.
4-6
29-34
Medium screws in softwood or small
7-9
36-39
screws in hardwood.
10-13
40-44
Large screws in softwoods. Medium
14-17
46-51
screws in hardwood or large screws in
18
53
hardwood with pilot hole.
NOTE: Because the settings shown in the table are
only a guide, use a piece of scrap material to test the
different clutch settings before driving screws into
the workpiece.
Applications
To reduce the risk of injury, always
WARNING
hold or brace securely.
Starting, Stopping and Controlling Speed
1. To start the tool, grasp the handles firmly and pull
the trigger.
NOTE: An LED is turned on when the trigger is pulled.
2. To vary the speed, increase or decrease the pres-
sure on the trigger. The further the trigger is pulled,
the greater the speed.
3. To stop the tool, release the trigger. Make sure
the bit comes to a complete stop before laying the
tool down.
APPLICATIONS
To reduce the risk of electric shock,
WARNING
check work area for hidden pipes
and wires before drilling or driving screws.
(Cat. No. 2702-20)
Place the bit on the work surface and apply firm pres-
sure before starting. Too much pressure will slow the
bit and reduce drilling efficiency. Too little pressure
will cause the bit to slide over the work area and dull
the point of the bit.
If the tool begins to stall, reduce pressure slightly to
allow the bit to regain speed. If the bit binds, reverse
the motor to free the bit from the workpiece.
Drilling in Wood, Composition Materials
When drilling in wood, composition materials and
plastic, select the
Start the drill slowly, gradually increasing speed as
you drill. When drilling into wood, use wood augers
or twist drill bits. Always use sharp bits. When using
twist drill bits, pull the bit out of the hole frequently to
clear chips from the bit flutes. To reduce the chance of
splintering, back work with a piece of scrap wood. Se-
lect low speeds for plastics with a low melting point.
Drilling in Metal
When drilling in metal, select the
ating mode. Use high speed steel twist drills or hole
saws. Use a center punch to start the hole. Lubricate
drill 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.
Drilling in Masonry
When drilling in masonry, select the
operating mode. 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 flow of dust in-
dicates 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.
Driving Screws and Nut Running
Drill a pilot hole when driving screws into thick or hard
materials. Select the
the torque selector collar to the proper position and
set the speed to low. Use the proper style and size
screwdriver bit for the type of screw you are using.
With the screwdriver bit in the screw, place the tip of
the screw on the workpiece and apply firm pressure
before pulling the trigger. Screws can be removed
by reversing the motor.
Overloading
Continuous overloading may cause permanent dam-
age to tool or battery pack.
5
Drilling
and Plastic
drill-only operating mode.
drill-only oper-
hammer drill
driving screws mode. Set

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2702-20