Maintenance - DeWalt DCD930 Instruction Manual

in scrap or unseen areas to determine the proper position of the
torque adjustment collar.
NOTE: The torque adjustment collar may be set to any number at
any time. However, the torque adjustment collar is only engaged
during screwdriving mode and not in drill and hammerdrill modes.
Hammerdrill Operation
1. Select the desired speed/torque range using the gear shifter to
match the speed and torque to the planned operation. Set the
mode control collar to the hammer symbol.
2. When drilling, use just enough force on the hammer to keep it
from bouncing excessively. Too much force will cause slower
drilling speeds, overheating, and a lower drilling rate.
3. Drill straight, keeping the bit at a right angle to the work. Do not
exert side pressure on the bit when drilling as this will cause
clogging of the bit flutes and a slower drilling speed.
4. When drilling deep holes, if the hammer speed starts to drop
off, pull the bit partially out of the hole with the tool still running
to help clear debris from the hole.
5. For MASONRY, use carbide-tipped bits or masonry bits. A
smooth, even flow of dust indicates the proper drilling rate.

MAINTENANCE

Your D WALT power tool has been designed to operate over a
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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 injury, turn unit off and
disconnect tool from power source before installing and removing
accessories, before making any adjustments or removing/installing
attachments or accessories.
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.
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
Since accessories, other than those offered by
WARNING:
D WALT, have not been tested with this product, use of such
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accessories with this tool could be hazardous. To reduce the risk of
injury, only D WALT, recommended accessories should be used
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with this product.
Recommended accessories for use with your tool are available at
extra cost from your local dealer or authorized service center.
MAXIMUM RECOMMENDED CAPACITIES
Speed 1
BITS, METAL 1/2" (12,7 mm)
DRILLING
WOOD, 1-1/2" (38.1 mm) 5/8" (15.9 mm) 5/8" (15.9 mm)
FLATBORING
BITS, MASONRY –
DRILLING
15
Speed 2 Speed 3
1/4" (6.4 mm) 1/4" (6.4 mm)
1/4" (6.4 mm) 1/4" (6.4 mm)