Milwaukee 0234-6 Manuel d'utilisation et d'entretien télécharger pdf (Page 5)

APPLICATIONS

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

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.

N/R = Not recommended

CAPACITIES

Wood Steel Masonry

Cat. No.

Flat Boring

Bits

Auger

Bits

Ship Auger Bits

Selfeed

Bits

Hole

Saws

Twist

Drill

Hole

Saws

Carbide-

Tipped Bits

0233-20 1” N/R N/R N/R 1-3/4” 3/8” 1” 3/8”

0234-6

RAD low

RAD high

1-1/2”

1-1/8”

1-1/4”

1-1/2”

1”

2”

2-1/4”

1-1/2”

4”

4-1/2”

2-3/4”

1/2”

2”

2-1/8”

1-1/2”

1/2”

9/16”

7/16”

0235-21 1-1/2” 1-1/2” 1-1/4” 2” 4” 1/2” 2” 1/2”

0244-1

RAD low

RAD high

1-1/2”

1-1/4”

2-1/4”

2-9/16”

1-3/4”

4-1/2”

5”

3-1/4”

1/2”

2-1/4”

1-3/4”

9/16”

5/8”

1/2”

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.

OPERATION

WARNING To reduce the risk of injury,

wear safety goggles or glasses with side

shields.

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.

Using Forward/Reverse Switch

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.

Forward

Fig. 9

Trigger

Reverse

Locking Trigger

The lock button holds the trigger in the ON position

for continuous full speed use.

WARNING To reduce the risk of injury,

keep hands and cord away from the bit and

all moving parts.

FWD.

LOCK

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.

Lock button

Fig. 10

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.

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.

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.

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Milwaukee 0234-6 Manuel d'utilisation et d'entretien Page 5

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