DeWalt DCD990 Guide D'utilisation page 13

FIG. 3 FIG. 4
E
F
Three-Speed Gearing (Fig. 3–5)
The three-speed feature of your tool allows you to shift gears for greater
versatility. To select speed 1 (highest torque setting), turn the tool off and
permit it to stop. Slide the gear shifter (F) all the way forward. Speed 2
(middle torque and speed setting) is in the middle position. Speed 3
(highest speed setting) is to the rear.
NOTE: Do not change gears when the tool is running. Always allow
the drill to come to a complete stop before changing gears. If you have
trouble changing gears, depress and release the trigger switch and try
again.
Keyless Single Sleeve Chuck (Fig. 6–8)
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. Always
lock off trigger switch and disconnect tool from power source when
changing acces sories.
FIG. 5 WARNING: Always ensure the bit is secure before starting the tool.
A loose bit may eject from tool causing possible personal injury.
Your tool features a keyless chuck with one rotating sleeve for one-
handed operation of the chuck. To insert a drill bit or other accessory,
follow these steps.
FIG. 6
E
F
1. Turn tool off and disconnect tool from power source.
2. Grasp the black sleeve of the chuck (D) with one hand and use
the other hand to secure the tool as shown in Figure 6. Rotate the
sleeve counterclockwise (as viewed from the front) far enough to
accept the desired accessory.
3. Insert the accessory about 3/4" (19 mm) into the chuck and
tighten securely by rotating the chuck sleeve clockwise with one
hand while holding the tool with the other hand. Continue to rotate
the chuck sleeve until several ratchet clicks are heard to ensure full
gripping power.
Be sure to tighten chuck with one hand on the chuck sleeve and one
hand holding the tool for maximum tightness.
To release the accessory, repeat Steps 1 and 2 above.
11
FIG. 7 FIG. 8
D