Blade Selection; Operation; Installing And Removing The Battery Pack - DeWalt DCS378 Instruction Manual

Heavy‑duty 20v max cordless band saw
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WARNING: The use of any other blade or accessory
might be hazardous. DO NOT use any other type
of accessory with your band saw. Blades used on
stationary band saws are of different thickness. Do not
attempt to use them on your portable unit.

Blade Selection

In general, first consider the size and shape of the work,
and the type of material to be cut. Remember, for the most
efficient cutting, the coarsest tooth blade possible should be
used in a given application, because the coarser the tooth,
the faster the cut. In selecting the appropriate number of
teeth per inch of the band saw blade, at least two teeth
should contact the work surface when the blade is rested
against the workpiece. As a rule of thumb, soft materials
usually require coarse tooth blades, while hard materials
require fine tooth blades. Where a smoother finish is
important, select one of the finer tooth blades.
Select the appropriate band saw blade according to the
material type, dimensions, and number of teeth. Refer to the
Bi‑Metal Band Saw Blade Description chart.
The following table is intended as a general guide only.
Determine the type of material and dimension of the
workpiece and select the most appropriate band saw blade.
NOTICE: Never use the band saw to cut resin materials
which are subject to melting. Melting of resin material
caused by high heat generated during cutting may
cause the band saw blade to become bound to the
material, possibly resulting in overload and burn‑out
of the motor.
Bi‑METAl BAnD sAW BlADE DEsCRiPTiOn
Workpiece Thickness
1/8" (3.2 mm) and under
1/8"–1/4" (3.2–6.4 mm)
Variable Speed Trigger Switch (Fig. A, I)
DCS378
Release switch lock‑off button 
variable speed trigger switch 
variable speed trigger switch will give you added versatility.
The further the trigger is depressed the higher the speed of
the saw. Releasing the trigger switch turns the motor OFF.
Releasing the trigger switch also automatically actuates
lock‑off button.
Dual Trigger Switch (Fig. A, J)
DCS379
Release the lock and un‑lock button 
Pull the variable speed trigger switch 
front trigger switch 
 27 
for at least five seconds to turn the
motor ON. The variable speed trigger switch will give you
added versatility. The further the trigger is depressed the
higher the speed of the saw. Releasing the front trigger
switch or the variable speed trigger switch turns the
motor OFF.
number of Teeth
24
18
14
14/18
by pressing button. Pull the
 1 
to turn the motor ON. The
 2 
 1 
by pressing button.
 2 
and then pull the

WARNING: This tool has no provision to lock the
switch in the ON position, and should never be locked
ON by any other means.
Variable Speed Control (Fig. I, J)
A variable speed dial 
saw. The speed increases as the wheel is turned from a
low speed setting of 1 (220 SFPM) to a high speed setting
of 5 (570 SFPM).
LED Worklight (Fig. A)

CAUTION: Do not stare into worklight. Serious eye
injury could result.
There is a worklight 
worklight is activated when the trigger switch is depressed,
and will automatically turn off 20 seconds after the trigger
switch is released. If the trigger switch remains depressed,
the worklight will remain on.
nOTE: The worklight is for lighting the immediate work
surface and is not intended to be used as a flashlight.

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. K)

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.
1. To install the battery pack 
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.
2. To remove the battery pack from the tool, press the
battery pack release button 
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. L)

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.
Hold the saw firmly with one hand on the main handle 
and one hand on the auxiliary handle 
Cutting (Fig. A, I, J, L)
Refer to Recommended Cutting Positions for
recommended cutting positions for various materials.
 3 
is located near the trigger of the
located above the blade. The
 17 
 14 
into the tool handle, align
and firmly pull the
 15 
.
 18 
English
 4 
11

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