DeWalt DCH274 Instruction Manual

ENGLISH
6
To Maintain Safe Tool Control
• Make sure the work surface is free of nails or screws.
Cutting into a nail or screw may cause the tool to jump,
damaging thebit.
• Never operate the tool with one hand while holding the
workpiece with the other hand. Always clamp the material
and guide the tool with bothhands.
Switch (Fig. A)
To start the motor, slide the switch
1
to “I” position. To stop
the motor, slide the switch to “O”position.
Proper Hand Position (Fig. C)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal injury,
ALWAYS hold securely in anticipation of a suddenreaction.

WARNING: Tool may stall (if overloaded or improperly
used) causing a twist. Always expect the stall. Grip the tool
firmly with both hands to control the twisting action and
prevent loss of control which could cause personalinjury.
Proper hand position requires one hand on the handle
10
and the other bracing the battery to control the twisting
action of thetool.
Installing and Removing the Battery Pack (Fig.B)
NOTE: For best results, make sure your battery pack is
fullycharged.
To install the battery pack
8
into the tool handle, align the
battery pack with the rails inside the tool’s handle and slide
it into the handle until the battery pack is firmly seated in
the tool and ensure that it does notdisengage.
To remove the battery pack from the tool, press the release
button
9
and firmly pull the battery pack out of the tool
handle. Insert it into the charger.
OPERATION

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/installing
attachments or accessories. An accidental start‑up can
causeinjury.
Depth Guide (Fig. A)
Cutting depth guide
2
snaps onto locators as shown.
Keep depth guide in place at all times during operation of
the tool. For best results, adjust the guide using the knob
to allow the bit to protrude about 1/8" (3 mm) past the
material to becut.

WARNING: The bits are sharp and should be handled
with greatcare.

CAUTION: When replacing bits, do not insert cutting
flutes into the collet. This may result in brokenbits.
3. While depressing both spindle and collet locks, turn
the collet grip clockwise to firmly tighten the collet. For
some heavy duty applications, it may be necessary to use a
wrench to further tighten the collet nut
3
while depressing
the spindle lock button
6
.
4. Attachguide.

CAUTION: Never tighten the collet without a bitinstalled.
This tool comes with both 1/8" (3 mm) and 1/4" (6 mm)
collets. To change collets, remove the collet nut and insert
the desiredcollet.
Installing and Removing the Bit (Fig. A)
This tool is designed for spiral cutting bits with either a
1/8" (3 mm) or 1/4" (6 mm) shank and has a tool-free bit
change system. To change bits, FIRST turn off the tool and
disconnect the battery from the tool. Remove the cutting
depth guide
2
.
1. To replace bit, depress both spindle lock button
6
and
collet lock
4
and turn collet grip
5
counterclockwise.
2. Insert or removebit.
ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal
injury, turn unit off and remove the battery pack
before making any adjustments or removing/installing
attachments or accessories. An accidental start‑up can
causeinjury.
Your risk from these exposures varies, depending on how
often you do this type of work. To reduce your exposure to
these chemicals: work in a well ventilated area, and work with
approved safety equipment, such as those dust masks that are
specially designed to filter out microscopicparticles.
• Wear protective clothing and wash exposed areas with
soap and water. Allowing dust to get into your mouth, eyes, or
lay on the skin may promote absorption of harmfulchemicals.
Direct particles away from face andbody.
• Use the appropriate dust extractor vacuum to remove
the vast majority of static and airborne dust. Failure
to remove static and airborne dust could contaminate the
working environment or pose an increased health risk to the
operator and those in closeproximity.
• Use clamps or other practical ways to secure and
support the workpiece to a stable platform. Holding the
work by hand or against your body is unstable and may lead
to loss ofcontrol andinjury.
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be caught in
movingparts.

CAUTION: When not in use, place tool on its side
on a stable surface where it will not cause a tripping
or falling hazard. Some tools with large battery packs
will stand upright on the battery pack but may be easily
knockedover.
The label on your tool may include the following symbols. The
symbols and their definitions are asfollows:
BPM .................... beats per minute
V ......................... volts
min ..................... minutes
j
or DC ............direct current
…/min ..............per minute
RPM .................... revolutions per
minute
A ......................... amperes
Hz .......................hertz
W ........................watts
Wh ......................watt hours
n
o
.......................no load speed
n .........................rated speed
c
.....................safety alert symbol
h
..................... wear respiratory
protection
f
..................... wear eye
protection
i
..................... Class II
Construction
(double insulated)
g
..................... wear hearing
protection
a
..................... read all
documentation
n
..................... avoid staring at
light
l
or AC............alternating current
Ah ....................... amp hours

DeWalt DCH274 Specifications

General

Brand	DeWalt
Model	DCH274
Category	Cutter
Language	English