DeWalt DCD780 Manual De Instrucciones página 15

7. Keep the motor running when pulling the bit back out of a drilled
hole. This will help prevent jamming.
Screwdriving (Fig. 9)
1. Select the desired speed/torque
range using the gear shifter to
match the speed and torque to
the planned operation.
2. Turn the torque adjustment collar
(C) to the desired position.
NOTE: Use the lowest torque
setting required to seat the
fastener at the desired depth. The
lower the number, the lower the torque output.
3. Insert the desired fastener accessory into the chuck as you would
any drill bit.
4. Make some practice runs in scrap or on unseen areas of
the workpiece to determine the proper position of the torque
adjustment collar.
5. Always start with lower torque settings, then advance to higher
torque settings to avoid damage to the workpiece or fastener.
Hammerdrilling (Fig. 10)
1. Select the desired speed/torque
range using the gear shifter to
match the speed and torque to the
planned operation. Turn the collar
(C) to the hammerdrill symbol.
IMPORTANT: Use carbide-
tipped or masonry bits rated for
percussion drilling only.
2. Drill with just enough force on the
hammer to keep it from bouncing
excessively or "rising" off the bit.
FIG. 9
C
FIG. 10
C
13
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 drillling 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 tool still running to help
clear debris from the hole.
NOTE: A smooth, even flow of dust from the hole indicates proper
drilling rate.
MAINTENANCE
WARNING: To reduce the risk of serious personal injury,
turn tool off and remove the battery pack before making any
adjustments or removing/installing attachments or accessories.
An accidental start-up can cause injury.
Cleaning
WARNING: Blow dirt and dust out of all air vents with clean, dry air
at least once a week. To minimize the risk of eye injury, always wear
ANSI Z87.1 approved eye protection when performing this.
WARNING: Never use solvents or other harsh chemicals for
cleaning the non-metallic parts of the tool. These chemicals may
weaken the plastic 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.