DeWalt DWDO14S-XE, Instruction Manual

5

  2. Insert the bit or other accessory about       

D

FIG. 2

19 mm (3/4") into the chuck and tighten 

securely by holding the rear half of the 

chuck and rotating the front portion in the 

clockwise direction. When the chuck is 

nearly tightened, you will hear a clicking 

sound. After 4–6 clicks, the chuck is 

securely tightened around the accessory.

  3. To release the accessory, repeat step 1 

listed above.

WARNING: 

Do not attempt to tighten drill 

bits (or any other accessory) by gripping the 

front part of the chuck and turning the tool on. 

Damage to the chuck and personal injury may 

result.

FIG. 3

FIG. 4

KEYLESS CHUCK REMOVAL (FIG. 3)

Tighten the chuck around the shorter end of a hex key (not supplied). Using a soft 

hammer or piece of wood, strike the longer end in the counterclockwise direction. 

This will loosen the chuck so that it can be unscrewed by hand.

KEYLESS CHUCK INSTALLATION (FIG. 4)

Screw the chuck on by hand as far as it will go. Tighten the chuck around the shorter 

end of a hex key (not supplied) and strike the longer end in the clockwise direction 

with a soft hammer.

OPERATION

WARNING: To reduce the risk of serious personal injury, turn tool off and 

disconnect tool from power source before making any adjustments or removing/

installing attachments or accessories.

Proper Hand Position (fig. 5) 

G

FIG. 5

WARNING: 

To reduce the risk of 

serious personal injury, 

ALWAYS

 use 

proper hand position as shown in 

figure 5. 

WARNING:

 To reduce the risk of 

serious personal injury, 

ALWAYS

 hold 

securely in anticipation of a sudden 

reaction. 
Proper hand position requires one hand under the the housing, with the other hand on 

the main handle (G). 

Trigger Switch (fig. 1)

To start the drill, depress the trigger switch; to stop the drill, release the trigger switch.

NOTE: 

Use lower speeds for starting holes without a center punch, drilling in metal or 

plastics, driving screws or drilling ceramics. Higher speeds are better for drilling wood 

and composition boards and using abrasive and polishing accessories.

VARIABLE SPEED

A variable speed trigger switch (A) permits speed control—the farther the trigger is 

depressed, the higher the speed of the drill.
For continuous operation, press and hold the variable speed switch, move the lock-on 

button (B) up, then release the switch.
To stop continuous operation, press the switch briefly and release it. Always switch 

the tool off when work is finished and before unplugging.

Drilling

WARNING:

  To reduce the risk of serious personal injury, turn tool off and 

disconnect tool from power source before making any adjustments or removing/

installing attachments or accessories.