Operation; Installing And Removing The Battery Pack - DeWalt DCS438 Instruction Manual

3" (76 mm) cut off tool
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Attaching an AirLock
Extractor (Fig. G)

WARNING: Do not use dust extraction when cutting
metal. Swarf from metal cutting may be hot and may
spark which can melt vacuum hoses and may cause a
fire inside the vacuum.

WARNING: When using dust extraction, empty
vacuum before work begins and often during work.
Use care in disposing of dust. Materials in fine dust can
be explosive.
Your tool is compatible with the D
connection system. The AirLock™ allows for a fast, secure
connection between the AirLock™ connector 
tool's dust extraction port 
1. Remove the battery.
2. Ensure the collar on the AirLock™ connector is in the
unlock position. (Refer to Figure G.) Align notches 
collar and AirLock™ connector as shown for unlock and
lock positions.
3. Push the AirLock™ connector onto the adapter
connector point.
4. Rotate the collar to the locked position.
NoTE: The ball bearings inside collar lock into slot and
secure the connection.The power tool is now securely
connected to the dust extractor.
NoTE: If vacuum cleaner size can't match our airlock
system, please use twist lock connector

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.

Installing and Removing the Battery Pack

(Fig. H)

WARNING: Ensure the tool/appliance is in the off
position before inserting the battery pack.
NoTE: For best results, make sure your battery pack is
fully charged.
To install the battery pack 
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 
 2 
and firmly pull the battery pack out of the tool
handle. Insert it into the charger as described in the charger
section of this manual.
Proper Hand Position (Fig. I)

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.
Compatible Dust
WALT AirLock™
e
 23 
and your
 8 
.
29
to convert it.
 1 
into the tool handle, align the

WARNING: Keep your free hand far from
cutting action. Do not reach underneath the workpiece.
Proper hand position requires one hand on the main
handle 
.
 3 
Forward/Reverse/Lock Off Button (Fig. A)
Your cut‑off tool is equipped with a forward/reverse/lock
off button 
. Some applications or accessories may require
 5 
the tool to be run in forward or reverse. When making a cut,
select the direction of cut that allows the tool to be pushed
away from your body. When installing a diamond wheel,
select the rotation that matches the arrow on the wheel.
For forward (clockwise) rotation, push the forward/
reverse/lock off button all the way to the right, as shown
by the direction indicator 
For reverse (counterclockwise) rotation, push the
forward/reverse/lock off button all the way to the left, as
shown by the direction indicator.
 24 
on
To lock the trigger switch, push the forward/reverse/
lock off button to the centre position, as shown by the
direction indicator.
To Operate (Fig. A)

CAUTION: Before attempting to start, grasp tool firmly.

WARNING: To reduce the risk of injury, DO NOT use a
toothed blade.

WARNING: This tool is intended to be used dry.
If water cooling is necessary, use a spray bottle
with clean water to lightly wet surface only, avoid
over‑wetting the workpiece. NEVER immerse your tool
or battery pack in any liquid or allow liquid inside them.

WARNING: Wheels used for cutting may break or kick
back if they bend or twist while the tool is being used to
do cut‑off work.

WARNING: Do not bang or bump a cut‑off wheel
when starting or during a cut.
1. Grasp main handle 
2. Line up wheel with material to be cut. Be sure nothing is
near or in line with the wheel.
3. Depress and hold trigger switch 
wheel into work with firm pressure. Do not force the tool.
For maximum efficiency and wheel life, keep the wheel
speed high.
4. To stop tool, release trigger switch 
If Using the Dust Shroud for Dust
Collecting (Fig. J)
1. Remove battery pack.
2. Adjust the depth of cut when using the dust shroud.
3. Insert the battery pack.
4. While cutting, keep the shoe flat against the workpiece
and maintain a firm grip, don't force the cut off tool
through the workpiece. Forcing a cut off tool can
cause kickback.
NoTE: If making a partial cut, restarting a cut, or
correcting cut direction. Allow the wheels to come to
a complete stop. To resume cutting, center the wheel
 7 
.
 firmly.
 3 
then slowly feed
 4 
 4 
.
ENglIsh
37

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