Operation - Black & Decker REVCHD12C Instruction Manual

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3. You may charge a partially used battery whenever you
desire with no adverse effect on the tool.

OPERATION


WARNING: To reduce the risk of serious personal
injury, turn unit off and lock the trigger before
making any adjustments or removing/installing
attachments or accessories. An accidental start‑up
can cause injury.
Proper Hand Position (Fig. C)

WARNING: To reduce the risk of serious personal injury,
ALWAYS use proper hand position as shown.

WARNING: To reduce the risk of serious personal
injury, ALWAYS hold securely in anticipation of a
sudden reaction.
Proper hand position requires one hand on the
main handle 
 1 
and the other gripping the bottom of the
main handle around the battery area.
Trigger Switch/Reversing Button (Fig. C, D)
1. The drill is turned ON and OFF by pulling and releasing
the trigger switch 
 2 
.
2. A forward/reverse control button 
direction of the tool and also serves as a lock off button.
3. To select forward rotation, release the trigger switch and
depress the forward/reverse control button to the left.
4. To select reverse, depress the forward/ reverse control
button the opposite direction.
nOTE: 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.
Worklight (Fig. C)

CAUTION: Do not stare into worklight. Serious eye
injury could result.
There is a worklight 
 9 
located on the front of the tool. The
worklight is activated when the trigger switch is depressed,
and will automatically turn off after the trigger switch
is released. If the trigger switch remains depressed, the
worklight will remain on.
nOTE: The worklight is for lighting the immediate work
surface and is not intended to be used as a flashlight.
Speed Selection (Fig. A)
The tool features two speed settings for greater versatility.
nOTE: Do not change speeds when the tool is running.
Always allow the tool to come to a complete stop before
changing speed.
1. To select speed 1 (high torque setting), turn the tool off
and permit it to stop. Slide the speed selector 
(away from the chuck).
2. To select speed 2 (high speed setting), turn the tool off
and permit it to stop. Slide the speed selector 
(toward the chuck).
If the tool does not change speeds, confirm that the speed
selection switch is completely engaged in the forward or
back position.
 3 
determines the
 7 
back
 7 
forward
Torque Control (Fig. F)
symbol
1-10
Screwdriving (higher number = greater torque)
This tool is fitted with a torque adjustment collar 
select the operating mode and to set the torque for
tightening screws. Large screws and hard workpiece
materials require a higher torque setting than small screws
and soft workpiece materials.
1. For drilling in wood, metal and plastics, set the collar to
the drilling position symbol
2. For screwdriving, set the collar to the desired setting. If you
do not yet know the appropriate setting, proceed as follows:
Set the collar to the lowest torque setting.
Tighten the first screw.
If the clutch ratchets before the desired result
is achieved, increase the collar setting and
continue tightening the screw. Repeat until you
reach the correct setting. Use this setting for the
remaining screws.
3. For drilling in masonry or concrete set the collar to the
hammer drilling position symbol
Keyless Chuck (Fig. G)

WARNING: Make certain the lock‑off button is
engaged to prevent switch actuation before installing
or removing accessories.

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 occur when changing accessories.
To Insert a Drill Bit or Other Accessory
1. Grasp the rear half of the chuck 
and use your other hand to rotate the front half 
the counterclockwise direction, as viewed from the
chuck end.
2. Insert the bit or other accessory fully into the chuck, and
tighten securely by holding the rear half of the chuck and
rotating the front portion in the clockwise direction as
viewed from the chuck end.
Screw Driving (Fig. D)
1. For driving fasteners, the forward/reverse control
button 
 3 
should be pushed to the left.
2. Use forward/reverse control button 
right for removing fasteners.
3. When moving from forward to reverse, or vice versa,
always release the trigger switch 
English
Mode
Drilling
Hammer drilling
 4 
to
.
 7 
with one hand
 6 
in
 3 
pushed to the
 2 
 first.
7

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