Hammerdrilling - DeWalt DCD777 Manual De Instrucciones

ENgLISh
• If drilling thin material or material that is prone to
splinter, use a wood "back-up" block to prevent damage
to the workpiece.

Hammerdrilling

DCD778
IMPORTANT: Use carbide-tipped or masonry bits rated for
percussion drilling only.
1. Select the desired speed/torque range using the speed
selector 6 to match the speed and torque to the
planned operation. Turn the mode selection collar
the hammerdrill symbol.
2. Pull the trigger, applying just enough pressure on the
hammer to keep it from bouncing excessively or "rising"
off the bit.
Recommendations for hammerdrilling
• Too much force will cause slower drilling speeds,
overheating, and a lower drilling rate.
• A smooth even flow of material indicates the proper
drilling rate.
• Drill straight, keeping the bit at a right angle to the work.
Do not exert side pressure on the bit when drillling as
this will cause clogging of the bit flutes and a slower
drilling speed.
• When drilling deep holes, if the hammer speed starts to
drop off, pull the bit partially out of the hole with tool
still running to help clear debris from the hole.
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 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.
Accessories

WARNING: Since accessories, other than those
offered by D WALT, have not been tested with this
e
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 call 1-800-4-D
e
(1-800-433-9258) or visit our website: www.dewalt.com.
10
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 D
service center or a D
Always use identical replacement parts.
5 to
RegisterOnline
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
notification is required under the Federal Consumer
Safety Act.
• Register online at www.dewalt.com
Three Year Limited Warranty
For warranty terms, go to https://www.dewalt.com/Legal/
Warranty/3-Year-Limited-Warranty.
To request a written copy of the warranty terms, contact:
Customer Service at D
Joppa Road, Towson, MD 21286 or call 1-800-4-D
(1-800-433-9258).
WALT
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WALT
e
WALT factory
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WALT authorized service center.
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WALT Industrial Tool Co., 701 East
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WALT
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