Assembly And Adjustments; Installing And Removing The Battery Pack - DeWalt DCF809 Manual De Instrucciones

Atornillador de impacto inalámbrico sin escobillas de 20 v
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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.
Quick-Release Chuck (Fig. A, D)
NoTE: The chuck 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.
To install an accessory, pull the chuck collar
the front of the tool and fully insert the accessory into the
quick-release chuck
 6 
. The accessory is locked into place
(Fig. A, D).
To remove an accessory, pull the chuck collar
the front of the tool. Remove the accessory from the quick-
release chuck
 6 
(Fig. A, D).
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. E)
NoTE: For best results, make sure your battery pack is
fully charged.
To install the battery pack 
 1 
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.
To remove the battery pack from the tool, press the release
button 
 2 
and firmly pull the 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. F)

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 
 8 
.
Variable Speed Trigger and Forward/
Reverse Control Button (Fig. A)
The tool is turned on and off by pulling and releasing the
variable speed trigger
3
. The farther the trigger is depressed,
the higher the speed of the tool. Your tool is equipped with
a brake. The chuck will stop as soon as the trigger switch is
fully released.
 4 
in the lock-off
 5 
away from
 5 
away from
into the tool handle, align the
A forward/reverse control button
rotational direction of the tool and also serves as a
lock-off button.
To select forward rotation (clockwise), release the trigger
and depress the forward/reverse control button on the
right side of the tool.
To select reverse (counterclockwise), depress the
forward/reverse control button on the left side of
the tool.
NoTE: 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: Continuous use in variable speed range is not
recommended. It may damage the switch and should
be avoided.
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.
Worklight (Fig. A)
The worklight
7
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.
Usage (Fig. A)

CAUTION: Ensure fastener and/or system will
withstand the level of torque generated by the tool.
Excessive torque may cause breakage and possible
personal injury.
1. Place the accessory on the fastener head. Keep the tool
pointed straight at the fastener.
2. Press variable speed trigger switch
Release variable speed trigger switch to stop operation.
Always check torque with a torque wrench, as the
fastening torque is affected by many factors including
the following:
-
Voltage: Low voltage, due to a nearly discharged
battery, will reduce fastening torque.
accessory size: Failure to use the correct accessory
-
size will cause a reduction in fastening torque.
Bolt size: Larger bolt diameters generally
-
require higher fastening torque. Fastening torque
will also vary according to length, grade, and
torque coefficient.
Bolt: Ensure that all threads are free of rust and other
-
debris to allow proper fastening torque.
Material: The type of material and surface finish of
-
the material will affect fastening torque.
Fastening time: Longer fasten ing time results in
-
increased fastening torque. Using a longer fastening
time than recommended could cause the fasteners
to be overstressed, stripped or damaged.
ENglIsh
4
determines the
3
to start operation.
25

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