Maintenance - DeWalt DCF813 Instruction Manual

2. Press switch to start 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.
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 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.
CHARGER CLEANING INSTRUCTIONS
WARNING: Shock hazard. Disconnect the charger from the AC
outlet before cleaning. Dirt and grease may be removed from the
exterior of the charger using a cloth or soft non-metallic brush. Do not
use water or any cleaning solutions.
Accessories
WARNING: Since accessories, other than those offered by D
have not been tested with this product, use of such accessories with
this tool could be hazardous. To reduce the risk of injury, only D
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
D WALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD
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21286, call 1-800-4-D WALT (1-800-433-9258) or visit our website
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www.dewalt.com.
CAUTION: Use only impact sockets. Non-impact sockets may
break and cause a hazardous condition. Inspect sock et prior to use
to ensure that it con tains no cracks.
Repairs
The charger and battery pack are not serviceable.
To assure product SAFETY and RELIABILITY, repairs, maintenance and
adjustment (including brush inspection and replacement) should be
performed by a D WALT factory service center, a D
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service center or other qualified service personnel. Always use
identical replacement parts.
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