DeWalt D21720-B3 Manual De Instrucciones página 9

OPERATION
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.
WARNING: Be aware of the location of pipework and wiring.
WARNING: Apply only a gentle pressure to the tool. Excessive
force does not speed up drilling but decreases tool performance
and may shorten tool life.
PRIOR TO OPERATION
• Insert the appropriate bit.
• Mark the spot where the hole is to be drilled.
Switching On and Off (Fig. 1)
To run the tool, press the variable speed switch (A). The pressure
exerted on the variable speed switch determines the tool speed.
If necessary, press the lock-on button (B) for continuous operation
and release the switch.
The lock-on button works only in full speed, forward rotation.
To stop the tool, release the switch.
To stop the tool in continuous operation, press the switch briefly
and release it. Always switch off the tool when work is finished and
before unplugging.
Screwdriving
Select forward or reverse rotation.
Percussion Drilling (Fig. 1)
1. Select the percussion mode.
2. Press the switch (A).
Rotary Drilling (Fig. 1)
1. Select the rotary drilling mode.
2. Proceed as described for percussion drilling.
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.
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
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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.
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