DeWalt XR DCF850 User Manual

31
ENGLISH
Intended Use
This impact driver is designed for professional impact
screwdriving applications. The impact function makes this
tool particularly useful for driving fasteners in wood, metal
andconcrete.
DO NOT use under wet conditions or in the presence of
flammable liquids orgases.
This impact driver is a professional powertool.
DO NOT let children come into contact with the tool.
Supervision is required when inexperienced operators use
thistool.
• Young children and the infirm. This appliance is not
intended for use by young children or infirm persons
withoutsupervision.
• This product is not intended for use by persons (including
children) suffering from diminished physical, sensory or
mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their
safety. Children should never be left alone with thisproduct.
ASSEMBLY AND ADJUSTMENTS

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.

WARNING: Use only DeWALT battery packs andchargers.
Inserting and Removing the Battery Pack
from the Tool (Fig. B)
NOTE: Make sure your battery pack
6
is fullycharged.
To Install the Battery Pack into the Tool Handle
1. Align the battery pack
6
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
5
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
13
. 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.
Belt Hook and Magnetic Bit Holder (Fig.A)

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.

WARNING: To reduce the risk of serious personal
injury, DO NOT suspend tool overhead or suspend
objects from the belt hook. ONLY hang tool’s belt hook
from a workbelt.

WARNING: To reduce the risk of serious personal
injury, ensure the screw holding the belt hook issecure.
IMPORTANT: When attaching or replacing the belt hook or
magnetic bit holder, use only the screw
9
that is provided. Be
sure to securely tighten thescrew.
The belt hook
8
and magnetic bit holder
12
can be attached
to either side of the tool using only the screw
9
provided,
to accommodate left- or right- handed users. If the hook or
magnetic bit holder is not desired at all, it can be removed from
thetool.
To move belt hook or magnetic bit holder, remove the screw
9
that holds it in place then reassemble on the opposite side. Be
sure to securely tighten thescrew.
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.
Proper Hand Position (Fig.A,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.
Proper hand position requires one hand on the main
handle
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 tool will stop when the trigger switch is fullyreleased.
The variable speed switch enables you to start the application at
a slow speed. The further you squeeze the trigger, the faster the
tool will operate. For maximum tool life, use variable speed only
for starting holes orfasteners.

DeWalt XR DCF850 Specifications

General

Voltage	18V
Impacts per Minute	0-3800 IPM
LED Light	Yes
Anvil Type	1/4-inch hex
Battery Type	Li-Ion
Max Torque	205 Nm