DeWalt DCD470 - Page 38

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ENGLISH
use an auxiliary dust attachment with an M Class rated
dust extractor such asDWV902M.
Use dry core masonry bits. Keep even force on the drill but not
so much that you crack the brittle material. A smooth, even flow
of dust indicates the proper drillingrate.
Use sharp drill bits only. For masonry, such as brick, cement,
cinder block, etc., use dry diamond core bits
NOTE: Always use core bits designed for drydrilling.
Troubleshooting Drilling in Masonry
Problem Solution
Core bit does not cut.
Material too hard for core bit.
• Choose a more appropriate core bit
(with softer segments).
Segments look glazed and polished • Drill in abrasive material to re-expose
diamond segments.
Dust accumulating in core bit.
Accumuating dust slows down the
drilling speed.
• Disengage drill bit regularly to
evacuate cuttings. Check filter on dust
extraction, clean or replace
as required.
Rotating speed may not
be appropriate.
• Refer to the Maximum
Recommended Capacities
table for proper speed ratings.
Segments wear too fast. • Choose a more appropriate core bit
(with harder segments).
• Reduce the pressure applied on the
core bit.
MAINTENANCE
Your
DeWALT
power tool has been designed to operate
over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper tool
care and regularcleaning.

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start-up can causeinjury.
The charger and battery pack are notserviceable.
Lubrication
Your power tool requires no additionallubrication.
Cleaning

WARNING: Blow dirt and dust out of the main housing
with dry air as often as dirt is seen collecting in and around
the air vents. Wear approved eye protection and approved
dust mask 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 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.
Optional 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.
Consult your dealer for further information on the
appropriateaccessories.
MAXIMUM RECOMMENDED CAPACITIES
LOW SPEED HIGH SPEED
E-Clutch® System YES YES
Mechanical Clutch YES NO
RPM 0–400 0–1320
WOOD
Auger 51 mm 51 mm
Self-feed 117 mm 117 mm
Hole saw 172 mm 152 mm
METAL
Twist 13 mm 8 mm
MASONRY
Diamond core bit
Aerated concrete
block/breeze block/
cinderblock
152 mm 152 mm
Brick 127 mm 127 mm
NOTE: For holes in metal larger than 13 mm, use hole saws.
Protecting the Environment
Separate collection. Products and batteries marked
with this symbol must not be disposed of with normal
householdwaste.
Products and batteries contain materials that can
be recovered or recycled reducing the demand for raw
materials. Please recycle electrical products and batteries
according to local provisions. Further information is available at
www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when it fails
to produce sufficient power on jobs which were easily done
before. At the end of its technical life, discard it with due care for
our environment:
• Run the battery pack down completely, then remove it from
thetool.
• Li-Ion cells are recyclable. Take them to your dealer or a
local recycling station. The collected battery packs will be
recycled or disposed ofproperly.