Black & Decker HD450 Instruction Manual page 11

Hold power tool by insulated gripping surfaces
when performing an operation where the cutting
tool may contact hidden wiring or its own cord.
Contact with a "live" wire will also make exposed metal
parts of the power tool "live" and shock the operator.
Use clamps or another practical way to secure and
support the workpiece to a stable platform. Holding
the work by hand or against your body leaves it unstable
and may lead to loss of control.
Before drilling into walls, floors or ceilings check for the
location of wiring and pipes.
Avoid touching the tip of a drill bit just after drilling, as it
may be hot.
Features
This tool includes some or all of the following features:
1. Variable speed switch (Only for HD450-HD500)
2. Lock-on button
3. Forward/reverse slider (Only for HD450-HD500)
4. Drilling mode selector
5. Chuck
6. Depth stop (Only for HD450-HD500)
7. Side handle (Only for HD450-HD500)
Assembly
Warning! Before assembly, make sure that the tool is
switched off and unplugged.
Fitting the side handle and depth stop (fig. A)
(Only for HD450-HD500)
Turn the grip counterclockwise until you can slide the side
handle (7) onto the front of the tool as shown.
Rotate the side handle into the desired position.
Insert the depth stop (6) into the mounting hole as shown.
Set the drilling depth as described below.
Tighten the side handle by turning the grip clockwise.
Fitting a drill bit or screwdriver bit
Keyed chuck (fig. B)
Open the chuck by turning the sleeve (9) counterclockwise.
Insert the bit shaft (8) into the chuck.
Insert the chuck key (10) into each hole (11) in the side of
the chuck and turn clockwise until tight.
Removing and refitting the chuck (fig. C)
Open the chuck as far as possible.
Remove the chuck retaining screw, located in the chuck,
by turning it clockwise using a screwdriver.
Tighten an Allen key into the chuck and strike it with
a hammer as shown.
Remove the Allen key.
Remove the chuck by turning it counterclockwise.
To refit the chuck, screw it onto the spindle and secure it
with the chuck retaining screw.
Use
Warning! Let the tool work at its own pace. Do not overload.
Warning! Before drilling into walls, floors or ceilings,
check for the location of wiring and pipes.
Selecting the direction of rotation (fig. D)
For drilling and for tightening screws, use forward (clockwise)
rotation. For loosening screws or removing a jammed drill bit,
use reverse (counterclockwise) rotation.
To select forward rotation, push the forward/reverse
slider (3) to the centre position.
To select reverse rotation, push the forward/reverse slider
to the left.
Warning! Never change the direction of rotation while the
motor is running.
Selecting the drilling mode
For drilling in masonry, set the drilling mode selector (4) to
the position.
For drilling in other materials and for screwdriving, set the
drilling mode selector to the position.
Setting the drilling depth (fig. E) (Only for HD450-HD500)
Slacken the side handle (7) by turning the grip
counterclockwise.
Set the depth stop (6) to the desired position. The maximum
drilling depth is equal to the distance between the tip of
the drill bit and the front end of the depth stop.
Tighten the side handle by turning the grip clockwise.
Switching on and off
To switch the tool on, press the speed switch (1).
For tools with variable speed switch, the tool speed
depends on how far you press the switch. As a general rule,
use low speeds for large diameter drill bits and high speeds
for smaller diameter drill bits. (HD450-HD500)
For continuous operation, press the lock-on button (2) and
release the speed switch. This option is available only at
full speed. This option does not work in reverse rotation.
Reverse rotation available only for HD450-HD500.
To switch the tool off, release the speed switch.
To switch the tool off when in continuous operation, press
the speed switch once more and release it.
ENGLISH
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