Variable Speed Switch; Forward/Reverse Control Button; Torque Adjustment Collar; Keyless & Single Sleeve Chucks - DeWalt DW952 Instruction Manual

Variable Speed Switch

To turn the tool on, squeeze the trigger switch. To turn the tool off, release the trigger
switch. Your tool is equipped with a brake. The chuck will stop as soon as the trigger switch
is fully released.
The variable speed switch enables you to select the best speed for a particular application.
The farther you squeeze the trigger, 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.
FIG. 4
TRIGGER
SWITCH

Forward/Reverse Control Button

(FIG. 4) 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 trigger 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. When changing the position of the
control button, be sure the trigger 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.

Torque Adjustment Collar

The torque adjustment collar is clearly marked with numbers and a drill bit symbol.The col-
lar should be rotated until the desired setting is located at the top of the tool, (FIG. 5).
Locators are provided in the collar to eliminate the guess work when selecting fastening
torque. The higher the number on the collar, the higher the torque and the larger the fas-
tener which can be driven. To lock the clutch for drilling operations, move to the drill bit posi-
tion.
NOTE: When using the Drill/Driver for drilling holes, be sure that the Torque Adjusting
Collar is set so the figure of the drill is aligned with the arrow on the top of the tool. Failure
to do this will allow the clutch to slip while attempting to drill
Dual Range Gearing
The dual range feature of your Driver/Drill allows you to shift gears for greater versatility.
Figure 5 item A.
FIG. 5
TORQUE
ADJUSTMENT
COLLAR
DUAL RANGE
GEAR SHIFTER
To select the low speed, high torque setting, turn the tool off and permit to stop. Slide the
gear shifter forward (towards the chuck) (position 1), as shown in FIG. 5. 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 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
earlier.
2. Grasp the rear half of the chuck with one hand and use
your other hand to rotate the front half counterclockwise,
as shown in FIG 6. 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 hold-
ing 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.
Single Sleeve Chuck
Some tools feature a keyless chuck with one plastic sleeve for one-handed operation of
the chuck. To insert a drill bit or other accessory, follow the steps listed below.
1. Lock the trigger in the off position (Fig. 4).
2. Grasp the black sleeve of the chuck with one hand and rotate the sleeve counterclock-
wise until it is open enough to accept the desired tool.
3. Insert the tool shank about 3/4" (18 mm) and tighten the chuck by rotating the sleeve
clockwise.
WARNING: Do not attempt to tighten drill bits (or 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 the trigger in the off position when changing accessories.
Be sure to tighten the chuck with one hand on the chuck sleeve and one hand firmly hold-
ing the drill for maximum tightness.
NOTE: Do not install a single sleeve chuck onto a tool that has a standard two sleeve, key-
less chuck. Tools originally built with a single-sleeve chuck have an internal locking mech-
anism that is not part of the chuck. Therefore the single-sleeve chuck will not function prop-
erly on tools originally built with standard two-sleeve chucks.
Chuck Removal
Always wear eye protection.
Turn the adjustment collar to the "drill" position and low speed gear shifter position 1.
Tighten the chuck around the shorter end of a hex key (not supplied) of 1/4" or greater size.
Using a wooden mallet or similar object, strike the longer end in the clockwise direction, as
shown in FIG. 7. This will loosen the screw inside the chuck.
4
FIG. 6