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MAINTENANCE
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. An accidental
start-up can cause injury.
Your D
EWALT 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.
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.
Purchasing Accessories
WARNING: Since accessories, other than those offered by
D
EWALT, 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
EWALT, 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.
DRILLING IN METAL
USE ONLY in the low-speed gear range. Start drilling with slow speed
and increase to full power while applying firm pressure on the tool. A
smooth even flow of metal chips indicates the proper drilling rate. Use
a cutting lubricant when drilling metals. The exceptions are cast iron
and brass which should be drilled dry.
NOTE: Large [5/16" (8 mm) to 1/2" (13 mm)] holes in steel can be
made easier if a pilot hole [5/32" (4 mm) to 3/16" (5 mm)] is drilled first.
DRILLING IN WOOD
USE ONLY in the low-speed gear range. Start drilling with slow speed
and increase to full power while applying firm pressure on the tool.
Holes in wood can be made with the same twist drills used for metal.
These bits may overheat unless pulled out frequently to clear chips
from the flutes. Work that is apt to splinter should be backed up with
a block of wood.
DRILLING IN MASONRY
When drilling in masonry, use carbide tipped bits rated for percussion
drilling and be certain that the bit is sharp. For holes up to 3/8" (10
mm) diameter use the high-speed gear range. For holes larger than
3/8" (10 mm), use the the low-speed gear range. Ensure that the
hammer mode is selected. Use a constant and firm force on the tool
to drill most effectively. A smooth, even flow of dust indicates the
proper drilling rate.
Depth Rod
To adjust the depth rod, loosen the handle and move rod so that the
distance between the end of the rod and the end of the bit equals the
desired drilling depth. When drilling with depth rod, stop when end of
rod reaches surface of material.