DeWalt DCS551 - Page 11

9
ENGLISH
Proper hand position requires both hands on the mainhandle.
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.
• Do not cut material lying on a hard surface. Clearance
behind material to be cut must be allowed for protrudingbit.
• Disconnect battery from tool before making adjustments,
changing bits, or cleaningtool.
• Do not start the tool with bit engaged in the material.
The bit may grab thematerial.
• Never use the appliance with damage accessories (bit).
Damaged accessories could breakapart.
Switch (Fig.A)
To start the motor, press the ON/OFF switch
1
through the tool.
To stop the motor, press the switch back the oppositedirection.
Cutting a Hole for an Electrical Outlet (Fig.C)

WARNING: Shut off all live electric circuits to any areas
where cut‑outs will bemade.
1. Push any wiring deeply into the outlet box to avoid damage
from the cuttingbit.
2. Before hanging the sheet covering the outlet, mark the
approximate location of the centre of the outlet on the wall
board. Check the cutting bit depth against the side of the
board to be sure it will cut entirely through thematerial.
3. Tack the sheet in place with a few fasteners avoiding the
stud holding the outlet. This allows the wall board to flex
slightly around the protruding fixturebox.
4. Turn the cut‑out tool on. Holding the tool firmly with both
hands, plunge the bit straight into the centre of theoutlet.
5. Cut to the right until the edge of the box is touched. Pull
out just enough for the bit to clear the edge of the box.
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.
OPERATION
Instructions for Use

WARNING: Always observe the safety instructions and
applicableregulations.

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can causeinjury.
Installing and Removing the Bit (Fig.A)
This tool is designed for spiral cutting bits with either a 3.2 mm
(1/8") or 6.4 mm (1/4") 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 depth guide
2
.
1. To replace bit, depress both spindle lock
6
and collet
lock
5
and turn collet grip anti‑clockwise.
2. Insert or removebit.

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.

CAUTION: Bit could be hot due to cuttingprocess.
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 nut
4
while depressing the
spindle lock
6
.
4. Attachguide.

CAUTION: Never tighten the collet without a bitinstalled.
This tool comes with both 3.2 mm (1/8") and 6.4mm (1/4")
collets. To change collets, remove the collet nut and insert the
desiredcollet.
Depth Guide (Fig.A)
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 knob
3
to allow the bit to protrude
about 3.2 mm (1/8") past the material to becut.
To Install the Battery Pack into the Tool Handle
1. Align the battery pack
8
with the rails inside the tool’s
handle (Fig. B).
2. Slide it into the handle until the battery pack is firmly seated
in the tool and ensure that you hear the lock snap intoplace.
To Remove the Battery Pack from the Tool
1. Press the release button
10
and firmly pull the battery pack
out of the toolhandle.
2. Insert battery pack into the charger as described in the
charger section of thismanual.
Fuel Gauge Battery Packs (Fig.B)
Some DeWALT battery packs include a fuel gauge which
consists of three green LED lights that indicate the level of
charge remaining in the batterypack.
To actuate the fuel gauge, press and hold the fuel gauge
button
9
. A combination of the three green LED lights will
illuminate designating the level of charge left. When the level
of charge in the battery is below the usable limit, the fuel gauge
will not illuminate and the battery will need to berecharged.
NOTE: The fuel gauge is only an indication of the charge left on
the battery pack. It does not indicate tool functionality and is
subject to variation based on product components, temperature
and end‑userapplication.