DeWalt DCF899 Mode D'emploi page 39

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. 1)
There is a worklight (g) 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. 1)
Your tool is equipped with a speed selector (j) which
allows you to select one of three speeds. Select
the speed based on the application and control the
speed of the tool using the variable speed trigger
switch (a).
Speed 1
Speed 2
Speed 3
Anvil (fig. 2)
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 (center) position or
remove battery pack before changing accessories.
ANVIL WITH DETENT PIN (FIG. 2)
DCF899
To install an accessory on the anvil, align the hole in
the side of the accessory with the detent pin (h) on
the anvil (c). Press 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.
ANVIL WITH HOG RING (FIG. 2)
DCF899H
To install an accessory on the hog ring anvil, firmly
push accessory onto the anvil (c). The hog ring (i)
compresses to allow the accessory to slide on. After
accessory is installed, the hog ring applies pressure
to help provide accessory retention.
0–400 rpm
0–1200 rpm
0–1900 rpm
To remove an accessory, grasp the accessory and
firmly pull it off.
Usage
Your impact tool can generate the following
maximum torque:
Cat # Nm
DCF899, DCF899H 950
WARNING: 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 switch to start operation. Release 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 recom-
mended could cause the fasteners to be
overstressed, stripped or damaged.
MAINTENANCE
Your D WALT power tool has been designed to
e
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper tool care and regular
cleaning.
english
Ft.-Lbs. In.-Lbs.
700 8400
37