DeWalt DW955 Instruction Manual page 11

shock may result. To facilitate the cooling of the battery pack after
use, avoid placing the charger or battery pack in a warm
environment such as in a metal shed, or an uninsulated trailer.
CAUTION: Never attempt to open the battery pack for any reason.
If the plastic housing of the battery pack breaks or cracks, return to
a service center for recycling.
Operation
Variable Speed Paddle Switch
(FIG. 4-A)To turn the tool on, squeeze the paddle switch. To turn the
tool off, release the paddle switch. Your tool is equipped with a brake.
The chuck will stop as soon as the paddle switch is fully released.
The variable speed switch enables you to select the best speed for a
particular application. The farther you squeeze the paddle, the faster
the tool will operate. Use lower speeds for starting holes without a
centerpunch, drilling in metals or plastics, driving screws and drilling
ceramics, or in any application requiring high torque. Higher speeds
are better for drilling in wood, wood compositions and for using
abrasive and polishing accessories. For maximum tool life, use
variable speed only for starting holes or fasteners.
NOTE: Continuous use in variable speed range is not recommended.
It may damage the switch and should be avoided.
Forward/Reverse Control Button
(FIG. 4-B) A forward/reverse control button determines the direction of
the tool and also serves as a lock off button
To select forward rotation, release the paddle switch and depress the
forward/reverse control button on the right side of the tool.To select
reverse, depress the forward/reverse control button on the left side of
the tool. The center position of the control button locks the tool in the
off position. NOTE: When the tool is not in use or being transported,
keep the button in the middle lock position
When changing the position of the control button, be sure the paddle
is released. NOTE: The first time the tool is run after changing the
direction of rotation, you may hear a click on start up. This is normal
and does not indicate a problem.
Dual Range Gearing
(FIG. 4-C) The dual range feature of your Drill/Driver allows you to shift
gears for greater versatility.
To select the low speed, high torque setting, turn the tool off and permit
to stop. Slide the gear shifter forward (towards the chuck). To select the
high speed, low torque setting, turn the tool off and permit to stop. Slide
the gear shifter back (away from chuck).
NOTE Do not change gears when the tool is running. If you are having
trouble changing gears, make sure that the dual range gear shifter is
either completely pushed forward or completely pushed back.
Keyless Chuck
Your tool features a 3/8" keyless chuck for greater convenience. To
insert a drill bit or other accessory, follow the steps listed below.
1. Lock the trigger switch in the off position as described on page 6.
2. Grasp the rear half of the chuck with one hand and use your other
hand to rotate the front half counterclockwise. Rotate far enough
so that the chuck opens sufficiently to accept the desired accessory.
3. Insert the bit or other accessory about 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.
To release the accessory, repeat step 2 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. Always lock
off trigger switch when changing accessories.
Be sure to tighten chuck with two hands on both the rear sleeve and
the forward sleeve for maximum tightness.
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