DeWalt DWC709 Manual De Instrucciones página 41

7. Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
8. With variable speed drills there is no need to center punch the point
to be drilled. Use a slow speed to start the hole and accelerate by
squeezing the trigger harder when the hole is deep enough to drill
without the bit skipping out. Operate at full on after starting the bit.
Drilling in Wood
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. For larger holes, use low speed wood bits. Work that is
likely to splinter should be backed up with a block of wood.
Drilling in Metals
Use a cutting lubricant when drilling metals. The exceptions are cast
iron and brass which should be drilled dry. The cutting lubricants that
work best are sulphurized cutting oil or lard oil; bacon grease will also
serve the purpose.
Operation as a Screwdriver
Select the desired speed/torque range using the dual range gear
shifter on the top of tool to match the speed and torque to the
planned operation.
Insert the desired fastener accessory into the chuck as you would
any drill bit. Make a few practice runs in scrap or unseen areas to
determine the proper position of the clutch collar. 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.
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.
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
WARNING: Since accessories, other than those offered by
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 with
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this product.
Recommended accessories for use with your tool are available at
extra cost from your local dealer or authorized service center.
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