DeWalt D21002-XE, Instruction Manual

6

FIG. 5

FIG. 4

KEYLESS CHUCK REMOVAL (FIG. 4)

Tighten the chuck around the shorter end of a hex key (not supplied) of 6 mm (1/4") 

or greater size. 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. 5)

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

end of a 6 mm (1/4") or larger hex key (not supplied) strike the longer end in the 

clockwise direction with a soft hammer.

Keyed Chuck – D21002

Open the chuck jaws by turning collar by hand and insert the shank of the bit about 

19 mm (3/4") into chuck. Tighten the chuck collar by hand. Place chuck key in each of 

the three holes, and tighten in clockwise direction. It’s important to tighten chuck with 

all three holes. To release the bit, turn the chuck counterclockwise in just one hole, then 

loosen the chuck by hand. 

REMOVAL OF KEYED CHUCK (FIG. 6)

Tighten the chuck around the shorter end of a hex key (not supplied) of 6 mm (1/4") 

or greater size. Using a soft hammer, strike the key sharply in the counterclockwise 

direction when viewed from the front of the tool. This will loosen the chuck so that it 

can be removed by hand.

FIG. 6

FIG. 7

KEYED CHUCK INSTALLATION (FIG. 7)

Screw the chuck on by hand as far as it will go. Insert the shorter end of a hex key 

(not supplied) of 6 mm (1/4") or greater size and strike it in the clockwise direction 

with a soft hammer.

MAINTENANCE

WARNING: Shock Hazard. To reduce the risk of serious personal injury, turn 

tool off and disconnect from power source 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 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.