DeWalt DCF850 Guide D'utilisation page 6

English
sfpm ................... surface feet per
minute
SPM .................... strokes per minute
A ......................... amperes
W ........................ watts
Wh ...................... watt hours
Ah ....................... amp hours
or AC ........... alternating current
or AC/DC .... alternating or
direct current
...................... Class II
Construction
(double insulated)
ASSEMBLY AND ADJUSTMENTS

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.
Lanyard-Ready Attachment Kit (Fig. B–E)
(included on some models)
nOTE: Bit clip and belt hook cannot be used with the
lanyard-ready attachment kit installed.
safety Warnings specific for Use At height

WARNING:
• Only use batteries that contain the integral battery strap.
Do not use unsecured batteries while the tool is tethered.
Unsecured batteries may detach from the tool if dropped.
• If the tool is dropped for any reason, the lanyard attachment
point and battery strap components must be inspected and
properly serviced prior to re‑use. The lanyard attachment
point is designed to stretch to absorb the shock of a drop. Any
permanent stretch to the device exposing the red marked
internal coils indicates it has been compromised and must be
serviced prior to reuse.
• Always keep the tool and accessories tethered when
working "at height". (Maximum lanyard length: 6.5 ft [2 m].)
• Use only with lanyards appropriate for this tool type and
rated for at least the weight identified on the tool lanyard
attachment point label.
• Crush, cut or entanglement hazard. Do not use near moving
parts, mechanisms or running machinery.
• Do not anchor the tool lanyard to anything on your body.
Anchor to a rigid structure that can withstand the forces of a
dropped tool.
• Make sure the lanyard is properly secure at each end prior
to use.
• Inspect tool and lanyard before each use for damage and
proper function (including fabric and stitching). Do not use if
damaged or not functioning properly.
• Do not alter the lanyard attachment point or use in a
manner other than as instructed in this manual.
• Only attach tool to a lanyard with a locking carabiner. Do
not attach by looping or knotting the lanyard. Do not use rope
or cord.
• Electrical shock hazard. Be sure power is off when working in
high voltage areas. Some lanyards are conductive.
• Dropped tools will swing on the lanyard, which could cause
injury or loss of balance.
6
n o ....................... no load speed
n ......................... rated speed
...................... earthing terminal
..................... safety alert symbol
..................... visible radiation
..................... wear respiratory
protection
..................... wear eye
protection
..................... wear hearing
protection
..................... read all
documentation
• Do not carry the tool by the attachment point, the battery
strap or the lanyard.
• Do not attach more than one tool to each lanyard.
• Only use appropriate D
e
ready attachment kit. NEVER modify tools to create
attachment points.
• Only transfer the tool between hands while properly
balanced in a stable orientation.
• Do not attach lanyards to tool in a way that keeps guards,
switches or lock‑offs from operating properly.
• Avoid getting tangled in the lanyard.
• Keep lanyard away from the cutting area of the tool.
• Do not use lanyards or attachment devices to get additional
leverage from the tool.
• Do not use for personal fall protection.
• Falling object hazard! Only change batteries, accessories
and attachments where a dropped object won't cause a
hazard below you. Consult your Authority Having Jurisdiction
(AHJ) or site supervisor for procedures for working at height.
• Do not use the charger or contractor bag at height.
• Use multi‑action or screw gate type carabiners. Do not use
single action spring clip carabiners.
The lanyard-ready attachment kit is intended for use by
competent personnel who are trained and knowledgeable
regarding working with tools in and around machinery
and "at height". A lanyard-ready attachment kit may only
be added to certain models and must be installed by an
authorized service center.
The lanyard attachment point
appropriate lanyards with locking carabiner ends for use
at height, 6.5 ft (2 m) maximum length, rated for at least
the weight identified on the tool lanyard attachment point
label. Refer to Figure B.
Installing the Battery Strap Carabiner to the
Lanyard Attachment Point

WARNING: DO NOT attach the lanyard to the battery
strap. Lanyards should only be attached to the lanyard
attachment point.
The carabiner at the end of the battery strap
opened and then attached to the lanyard attachment point.
To open the carabiner:
1. Install battery into tool.
2. Flip open the carabiner tab
3. Pull the tab upward.
4. Move the carabiner locking arm
5. Attach the carabiner locking arm to the lanyard
attachment point .
11
6. Move the locking arm back into place, push the tab back
down so the pin engages the locking arm.
7. The tool is now ready for a lanyard. Refer to Fig. B–E.
Quick-Release Chuck (Fig. A, H)

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 6 accepts 1/4" (6.35 mm) hex accessories
and 1" (25.4 mm) bit tips only.
Place the forward/reverse button
(center) position and remove battery pack before
changing accessories.
WALT brand lanyard‑
is for attaching
11
12 should be
13 .
14 out to open.
4 in the lock-off