Maintenance - DeWalt DCF885 Instruction Manual

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. 2)
There are three worklights (G) located around the chuck collar (C). The
worklights are 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 worklights will remain on.
NOTE: The worklights are for lighting the immediate work surface and
are not intended to be used as a flashlight.
FIG. 4
C
D
Quick-Release Chuck (Fig. 1, 4, 5)
NOTE: The chuck accepts 1/4" (6.35 mm) hex accessories and 1"
(25.4 mm) bit tips only.
Place the forward/reverse button (B) in the lock-off (center) position or
remove battery pack before changing accessories.
To install an accessory, fully insert the accessory. The accessory is
locked into place (Fig. 4).
To remove an accessory, pull the chuck collar (C) away from the front
of the tool. Remove the accessory (Fig. 5).
Usage
Your impact tool can generate the following maximum torque:
Cat # Ft.-Lbs.
DCF885 117
FIG. 5
C
D
In.-Lbs. Nm
1400 155
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 socket 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.
• Socket size: Failure to use the correct socket 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

WARNING: To reduce the risk of serious personal injury,
place the forward/reverse button in the lock-off position
or turn tool off and disconnect battery pack before making
any adjustments or removing/installing attachments or
accessories.
Lubrication
Your power tool requires no additional lubrication.
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