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DeWalt DCF840 Traduction De La Notice D'instructions Originale page 33

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  • FRANÇAIS, page 46
Battery pack
6
Worklights
7
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 D
Inserting and Removing the Battery Pack
from the Tool (Fig. B)
nOTE: Make sure your battery pack 
To Install the Battery Pack into the Tool Handle
1. Align the battery pack 
 6 
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 
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 D
WALT battery packs include a fuel gauge which consists
e
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.
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.
Belt hook (included with
8
some models)
Screw
9
WALT battery packs and chargers.
e
 6 
is fully charged.
with the rails inside the tool's
 5 
and firmly pull the battery pack
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 (Fig. A) (Optional 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 a belt hook, use only
the screw that is provided. Be sure to securely tighten the screw.
A belt hook 
 8 
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 is not desired at all, it can be removed
from the tool.
To move the belt hook, remove the screw 
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. D)

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 
Variable Speed Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch 
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 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.
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 
the tool and also serves as a lock-off button.
EnGLIsh
 9 
that holds it in
 1 
. To turn
 2 
determines the direction of
 11 
31

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