Operation - DeWalt DCF899 Original Instructions Manual

To Install the Battery Pack into the Tool Handle
6
1. Align the battery pack with the rails inside the tool's
handle (Fig. D).
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
5
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. E)
Some D WALT battery packs include a fuel gauge which
e
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
12
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.
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.

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, 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
Variable Speed Trigger Switch (Fig. A)
To turn the tool on, squeeze the trigger switch
tool off, release the trigger switch. Your tool is equipped with
a brake. The anvil 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.
and firmly pull the battery pack
4
1
. To turn the
Forward/Reverse Control Button (Fig. A)
A forward/reverse control button
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 centre 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.
Worklight (Fig. A)
7
There is a worklight located on the foot of the tool. The
worklight is activated when the trigger switch is depressed.
When the trigger is released, the worklight will stay illuminated
for up to 20 seconds.
nOTE: The worklight is for lighting the immediate work surface
and is not intended to be used as a flashlight.
Speed Selector (Fig. A)
Your tool is equipped with a speed selector
you to select one of three speeds. Select the speed based on the
application and control the speed of the tool using the variable
1
speed trigger switch .
Speed 1
Speed 2
Speed 3
Anvil (Fig. B)

WARNING: Use only impact accessories. Non-impact
accessories may break and cause a hazardous condition.
Inspect accessory prior to use to ensure that it contains
no cracks.

CAUTION: Inspect anvils, detent pins, and hog rings prior
to use. Missing or damaged items should be replaced
before use.
Place the switch in the locked off (centre) position or remove
.
battery pack before changing accessories.
Anvil with Detent Pin (Fig. B)
DCF899
To install an accessory on the anvil, align the hole in the side
of the accessory with the detent pin
the accessory on until the detent pin engages in the hole.
Depression of detent pin may be necessary to aid installation
of accessory.
To remove an accessory, depress the detent pin through the
hole and pull the accessory off.
EngLIsH
2
determines the direction of
10
which allows
0–400 rpm
0–1200 rpm
0–1900 rpm
8 3
on the anvil . Press
31