Product Manual

ENGLISH
10
Usage (Fig. A)

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.

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
3
to start operation.
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.
Fig.F
6
Your impact tool can generate the following
maximumtorque:
Cat # Nm Ft.-Lbs. In.-Lbs
DCF801 163 120.8 1450
DCF902 168.5 125 1500
Register Online
Thank you for your purchase. Register your product nowfor:
• WARRANTY SERVICE: Registering your product will
help you obtain more efficient warranty service in case
there is a problem with yourproduct.
• CONFIRMATION OF OWNERSHIP: In case of an
insurance loss, such as fire, flood or theft, your
registration of ownership will serve as your proof
ofpurchase.
• FOR YOUR SAFETY: Registering your product will
allow us to contact you in the unlikely event a safety
Repairs
The charger and battery pack are notserviceable. There are
no serviceable parts inside the charger or battery pack.

WARNING: To assure product SAFETY and
RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement, when
applicable) should be performed by a
DeWALT
factory
service center or a
DeWALT
authorized service center.
Always use identical replacementparts.
Accessories

WARNING: Since accessories, other than those
offered by
DeWALT
, have not been tested with this
product, use of such accessories with this tool could be
hazardous. To reduce the risk of injury, only
DeWALT
recommended accessories should be used with
thisproduct.
Recommended accessories for use with your tool are
available at extra cost from your local dealer or authorized
service center. If you need assistance in locating any
accessory, please contact
DeWALT
Industrial Tool
Co., 701East Joppa Road, Towson, MD 21286, call
1-800-4-
DeWALT
(1-800-433-9258) or visit our website:
www.dewalt.com.
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procedure.

WARNING: Never use solvents or other harsh
chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic
materials used in these parts. Use a cloth dampened
only with water and mild soap. Never let any liquid
get inside the tool; never immerse any part of the tool
into aliquid.
MAINTENANCE

WARNING: To reduce the risk of serious
personal injury, turn unit off and lock off the
toolremove the battery pack before making
any adjustments or removing/installing
attachments or accessories. An accidental start-up
can causeinjury.