DeWALT Owners Manual

ENGLISH
10
Fig. H
10
Variable Speed Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch
1
. To turn
the tool off, release the trigger switch. Your tool is equipped
with a brake. The chuck will stop when the trigger switch
is fully released. The variable speed switch enables you to
select the best speed for a particular application. The more
you squeeze the trigger, the faster the tool will operate. For
maximum tool life, use variable speed only for starting holes
orfasteners.
NOTE: Continuous use in variable speed range is not
recommended. It may damage the switch and should
beavoided.
Forward/Reverse Control Button (Fig. A)
A forward/reverse control button
2
determines the
direction of the tool and also serves as a lock-offbutton.
To select forward rotation, release the trigger switch and
depress the forward/reverse control button on the right side
of thetool.
To select reverse, release the trigger switch and depress the
forward/reverse control button on the left side of thetool.
The center position of the control button locks the tool in
the off position. When changing the position of the control
button, be sure the trigger isreleased.
NOTE: The first time the tool is run after changing the
direction of rotation, you may hear a click on start up. This is
normal and does not indicate aproblem.
Worklights (Fig. A)

CAUTION: Do not stare into worklight. Serious eye
injury couldresult.
There are three worklights
7
located around the chuck
collar
3
. The worklights are activated when the trigger
switch is depressed. When the trigger is released, the
worklight will stay illuminated for up to 20 seconds. If
the trigger switch remains depressed, the worklights will
remainon.
NOTE: The worklights are for lighting the immediate work
surface and are not intended to be used as aflashlight.
Quick-Release Chuck (Fig. A, I, J)

WARNING: Use only impact accessories. Non-impact
accessories may break and cause a hazardous
condition. Inspect accessory prior to use to ensure that
it con tains nocracks.
NOTE: The chuck accepts 1/4" (6.35 mm) hexaccessories.
Place the forward/reverse button
2
in the lock-
off (center) position or remove battery pack before
changingaccessories.
Fig. I
4
3
Fig. J
4
3
To install an accessory, fully insert the accessory. The
accessory is locked into place (Fig.I).
To remove an accessory, pull the chuck collar
3
away
from the front of the tool. Remove the accessory (Fig.J).
Mode Selector (Fig. A, K)
Your tool is equipped with a mode selector
11
which
allows you to select one of three modes. Select the mode
based on the application and control the speed of the tool
using the variable speed trigger switch
1
.
Precision Drive (Fig. K)
In addition to normal impacting modes, this tool features
the Precision Drive mode which enables greater control
in lighter applications to avoid damage to materials or
fasteners. It is ideal for light applications such as cabinet
hinge screws or machine screws. Precision Drive mode will
work as a screwdriver in light applications, before hesitating
as the screw head reaches the work piece, and then (if
required) start a slow controlled impact to ensure the head
ends perfectlyflush.
NOTE: This mode is for light duty screwdriving applications.
If the tool will not drive a fastener in Precision Mode,
please select mode 2 which will give the additional
powerrequired.
DCF887
Mode 1 Precision Drive rpm 0–1000
Mode 2 Normal Impacting rpm 0–2800
Mode 3 High Speed Impacting rpm 0–3250