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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: 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.
Worklights (Fig. A)
CAUTION: Do not stare into worklight. Serious eye
injury could result.
There are three worklights
collar
3
. The worklights are activated when the trigger
switch is depressed. When the trigger is released, the
worklight will stay illuminated for up to 20 seconds. If the
trigger switch remains depressed, the worklights will remain
on.
nOTE: The worklights are for lighting the immediate work
surface and are not intended to be used as a flashlight.
Quick-Release Chuck (Fig. A, F, G)
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 accepts 1/4" (6.35 mm) hex accessories
and 1" (25.4 mm) bit tips only.
Place the forward/reverse button
(center) position or remove battery pack before changing
accessories.
FIG. F
4
FIG. G
4
To install an accessory, fully insert the accessory. The
accessory is locked into place (Fig. F).
To remove an accessory, pull the chuck collar
from the front of the tool. Remove the accessory (Fig. G).
7
located around the chuck
2
in the lock-off
3
3
away
3
Anvil with Hog Ring (Fig. A)
DCF890
To install an accessory on the hog ring anvil, firmly push
accessory onto the anvil
10
to allow the accessory to slide on. After accessory is
installed, the hog ring applies pressure to help provide
accessory retention.
To remove an accessory, grasp the accessory and firmly pull
it off.
Usage
Your impact tool can generate the following maximum
torque:
Cat #
Ft.-Lbs.
DCF886
125
DCF890
150
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 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 recommended could cause the fasteners to be
overstressed, stripped or damaged.
MAINTENANCE
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.
Cleaning
WARNING: Blow dirt and dust out of all air vents with
clean, dry air at least once a week. To minimize the risk
of eye injury, always wear ANSI Z87.1 approved eye
protection when performing this.
WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
English
. The hog ring
11
compresses
In.-Lbs.
Nm
1500
170
1800
200
9
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