BLACK DECKER DR340C Corded Drill Instruction Manual

: June 3, 2024
: Black Decker

DR340C Corded Drill

3/8 in. (10MM) and
1/2 in. (13MM) DRILLS

INSTRUCTION MANUAL

Catalog Numbers DR260, DR340, DR560

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SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE.

SAFETY GUIDELINES – DEFINITIONS

It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.

DANGER: Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may
result in minor or mod er ate injury.
NOTICE: Used without the safety alert symbol indicates potentially hazardous
situation which, if not avoided, may result in property damage.

General Safety Rules

WARNING: Read all safety warnings and all instructions. Failure
to follow the warnings and instructions may result in electric shock, fire
and/or serious injury.

SAVE All WARNINGS AND INStRuctIoNS foR futuRe RefeReNce
The term “power tool” in the warnings refers to your mains-operated (corded)
power tool or battery-operated (cordless) power tool.

SAVE THESE INSTRUCTION

1) WoRk AReA SAfety
a) keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases or dust. Power tools create sparks which
may ignite the dust or fumes.
c) keep children and bystanders away while operating a power tool. Distractions
can cause you to lose control.

2) electRIcAl SAfety
a) Power tool plugs must match the outlet. Never modify the plug in any way. do
not use any adapter plugs with earthed (grounded) power tools. Unmodified
plugs and matching outlets will reduce risk of electric shock.
b) Avoid body contact with earthed or grounded surfaces such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if your body is
earthed or grounded.
c) do not expose power tools to rain or wet conditions. Water entering a power
tool will increase the risk of electric shock.
d) do not abuse the cord. Never use the cord for carrying, pulling or unplugging
the power tool. keep cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electric shock.
e) When operating a power tool outdoors, use an extension cord suitable for
outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
f) If operating a power tool in a damp location is unavoidable, use a ground fault
circuit interrupter (GfcI) protected supply. Use of a GFCI reduces the risk of
electric shock.

3) PeRSoNAl SAfety
a) Stay alert, watch what you are doing and use common sense when operating
a power tool. do not use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment of inattention while
operating power tools may result in serious personal injury.
b) use personal protective equipment. Always wear eye protection. Protective
equipment such as dust mask, nonskid safety shoes, hard hat, or hearing protection
used for appropriate conditions will reduce personal injuries.

SAFETY GUIDELINES – DEFINITIONS

It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.

DANGER: Indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING: Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may
result in minor or mod er ate injury.
NOTICE: Used without the safety alert symbol indicates potentially hazardous
situation which, if not avoided, may result in property damage.
c) Prevent unintentional starting. ensure the switch is in the off position before
connecting to power source and/ or battery pack, picking up or carrying the
tool. Carrying power tools with your finger on the switch or energizing power tools
that have the switch on invites accidents.
d) Remove any adjusting key or wrench before turning the power tool on. A wrench
or a key left attached to a rotating part of the power tool may result in personal injury.
e) do not overreach. keep proper footing and balance at all times. This enables
better control of the power tool in unexpected situations.
f) dress properly. do not wear loose clothing or jewelry. keep your hair, clothing
and gloves away from moving parts. Loose clothes, jewelry or long hair can be
caught in moving parts.
g) If devices are provided for the connection of dust extraction and collection facilities,
ensure these are connected and properly used. Use of dust collection can reduce dust related hazards.

4) PoWeR tool uSe ANd cARe
a) do not force the power tool. use the correct power tool for your application. The
correct power tool will do the job better and safer at the rate for which it was designed.
b) do not use the power tool if the switch does not turn it on and off. Any power
tool that cannot be controlled with the switch is dangerous and must be repaired.
c) disconnect the plug from the power source and/or the battery pack from the
power tool before making any adjustments, changing accessories, or storing
power tools. Such preventive safety measures reduce the risk of starting the
power tool accidentally.
d) Store idle power tools out of the reach of children and do not allow persons
unfamiliar with the power tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained users.
e) Maintain power tools. check for misalignment or binding of moving parts, breakage
of parts and any other condition that may affect the power tool’s operation. If
damaged, have the power tool repaired before use. Many accidents are caused by
poorly maintained power tools.
f) keep cutting tools sharp and clean. Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are easier to control.
g) use the power tool, accessories and tool bits, etc. in accordance with these
instructions, taking into account the working conditions and the work to be
performed. Use of the power tool for operations different from those intended could
result in a hazardous situation.

5) SeRvIce
a) have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.

SPECIfIC SAfETy RULES

hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
use clamps or another practical way to secure and support the work piece to a stable
platform. Holding the work by hand or against your body leaves it unstable and may lead to loss of control.
wear ear protectors with impact drills. Exposure to noise can cause hearing loss.
Use auxiliary handles supplied with the tool. Loss of control can cause personal injury.
keep your hair, clothing, and gloves away from air vents. Air vents often cover
moving parts in which these items can be caught.
• hold tool firmly with two hands (see figure A). Use auxiliary handle if provided. Loss of control can cause personal injury.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State of California
to cause cancer, birth defects or other reproductive harm. Some examples of
these chemicals are:
lead from lead-based paints,
crystalline silica from bricks and cement and other masonry products, and
arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area, and
work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles.
Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling,
and other construction activities. Wear protective clothing and wash exposed
areas with soap and water. Allowing dust to get into your mouth, eyes, or lay on the
skin may promote absorption of harmful chemicals.
WARNING: Use of this tool can generate and/or disperse dust, which may
cause serious and permanent respiratory or other injury. Always use NIOSH/OSHA
approved respiratory protection appropriate for the dust exposure. Direct particles
away from face and body.
WARNING: ALWAYS use safety glasses. Everyday eye glasses are NOT safety
glasses. Also use face or dust mask if cutting operation is dusty.

ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT:

• ANSI Z87.1 eye protection (CAN/CSA Z94.3)
• ANSI S12.6 (S3.19) hearing protection
• NIOSH/OSHA/MSHA respiratory protection

WARNING: Always wear proper personal hearing protection that conforms to
ANSI S12.6 (S3.19) during use. Under some conditions and duration of use, noise
from this product may contribute to hearing loss.

The label on your tool may include the following symbols.

V ………………volts
Hz …………….hertz
min …………..minutes
=== ………….direct current
O …………….Class I Construction (grounded)
□…………….Class II Construction (double insulated)
bpm …………. beats per minute
…………Read instruction manual before use
…………….Use proper hearing protection
A ……………….amperes
W ………………watts
~ …………….alternating current
no ……………..no load speed
……………..earthing terminal
…………….safety alert symbol
…/min or rpm…revolutions or reciprocation per minute
……………… Use proper respiratory protection
……………..Use proper eye protection

Extension Cords

When using an extension cord, be sure to use one heavy enough to carry the current your
product will draw. An undersized cord will cause a drop in line voltage resulting in loss of
power and overheating. The following table shows the correct size to use depending on
cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.

FUNCTIONAL DESCRIPTION

1. Variable speed switch
2. Lock-on button
3. Forward/reverse slider
4. Chuck
5. Bit storage
6. Bubble level (DR260, DR340)
7. Chuck key (DR560)
7a. Chuck key holder (DR560)
8. Side handle (DR560)

Safety warnings and Instructions: Drills

WARNING: Shock hazard. when drilling or driving into walls, floors or wherever
live electrical wires may be encountered, DO NOT TOUCH ANY METAL PARTS Of
TEE TOOL! hold the tool only by the plastic handle(s) / housing to prevent shock.
• Do not lock the tool ON when drilling by hand. Refer to Operating Instructions- Switching On and Off.
• hold drill firmly with both hands to control the twisting action of the drill (figure A). If your drill is equipped with a side handle, always use the side handle.
WARNING: Drill may stall (if overloaded or improperly used) causing a twist. Always expect the stall. Grip the drill firmly to control the twisting action and prevent loss of control which could cause personal injury. If a stall does occur, release the trigger immediately and determine the reason for the stall before re-starting.
• Always unplug the drill when attaching or removing accessories. When attaching
accessories in the drill chuck, it is important to securely tighten the chuck using all three
holes to prevent slippage. When using a keyless chuck, hand tighten firmly.

Motor

Be sure your power supply agrees with nameplate marking. 120 Volts AC only means
your drill will operate on standard 60 Hz household power. Do not operate AC tools on
DC. A rating of 120 volts AC/DC means that your tool will operate on standard 60 Hz AC
or DC power. This information is printed on the nameplate. Lower voltage will cause loss
of power and can result in over-heating. All Black & Decker tools are factory- tested; if this
tool does not operate, check the power supply.

Assembly

WARNING: To reduce the risk of injury, before assembly,
make sure that the tool is switched off and unplugged.
Attaching the side handle – DR560 (fig. B)
If your drill is equipped with a side handle, it must be
installed properly to control the drill.
• Turn the grip counterclockwise until you can slide the side
handle (8) onto the front of the tool as shown.
• Rotate the side handle into the desired position.
• Tighten the side handle by turning the grip clockwise.

Inserting a drill bit or other accessory (fig. C & D)
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.
WARNING: Always ensure the bit is secure before starting the tool. A loose bit may eject from tool causing possible personal injury. keyless two sleeve chuck (DR260) (fig. C)
• Open the chuck (4) by grasping the rear half (9) with one hand and use your other hand to
rotate the front sleeve (10) counterclockwise as viewed from the chuck end.
• Insert the accessory shaft into the chuck to about 3/4in. (19 mm) depth, centered in the jaws.
• Tighten securely by holding the rear half of the chuck and rotating the front sleeve in the
clockwise direction as viewed from the chuck end.

keyless single sleeve chuck (DR340)

This tool is equipped with a feature that automatically locks the spindle when the tool is
not running. This feature is a normal condition which allows for tightening or loosening of
the chuck with one hand while holding the drill with the other.

To change accessories, loosen the chuck by rotating the sleeve counterclockwise as
viewed from the chuck end.
Insert the accessory shaft into the chuck to about 3/4in. (19 mm) depth, centered in the
jaws.
Tighten securely by rotating the sleeve in the clockwise direction as viewed from the
chuck end.

Chuck and key (DR560) (fig. D)

Open the chuck (4) by turning the collar counterclockwise (when viewed from the
chuck end).
Insert the accessory shaft into the chuck to
about 3/4 in. (19 mm) depth, centered in the
jaws.
Tighten chuck collar by hand. Place chuck key (7) into each of the three holes and
securely tighten in a clockwise direction.
NOTE: Tighten chuck with all three holes to prevent slippage.

Removing and attaching the chuck (fig. E)
keyless chuck (DR260, DR340)

Open the chuck (4) as far as possible.
Remove the chuck retaining screw (11),
located in the chuck, by turning it clockwise
using a screwdriver (lefthand thread).
Tighten an allen key (12) of 1/4in. (6mm) or greater size (not supplied) into the chuck
and strike it with a soft hammer (13) in a clockwise direction as shown.
Remove the allen key.
Remove the chuck by turning it counterclockwise.
To attach the chuck, screw it onto the spindle and secure it with the chuck retaining screw.

keyed chuck (DR560) (fig. f)

Place chuck key (7) in any one of the three holes in the chuck (4).
Using a soft hammer (13), strike the key in a clockwise direction. This will loosen the screw (11) inside the chuck.
Open chuck jaws fully and remove the chuck retaining screw, located in the chuck, by turning it clockwise using a screwdriver
(lefthand thread).
Place key in chuck. Using a soft hammer (13), strike key sharply in a counterclockwise direction.
Remove the chuck by turning it counterclockwise.
To attach the chuck, screw it onto the spindle and secure it with the chuck retaining screw.

Operating Instructions

WARNING: To reduce the risk of serious personal injury, read, understand and
follow all safety warnings and instructions prior to using tool.
WARNING: It is important to support the work properly and to hold the drill
firmly to prevent loss of control which could cause personal injury. If you have any
questions on how to properly operate tool, call: 1-800-544-6986.
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.
WARNING: To reduce the risk of injury, always unplug drill from power supply
before making any adjustments or changing accessories.
WARNING: To reduce the risk of injury, let the tool work at its own pace. Do not
overload.

Selecting the direction of rotation

For drilling and for tightening screws, use forward (clockwise) rotation. For loosening
screws or removing a jammed drill bit, use reverse (counterclockwise) rotation.
WARNING: Never change the direction of rotation while the motor is running.
Models DR260, DR340

To select forward rotation, push the forward/reverse slider (3) to the right (when viewed from the chuck end).
To select reverse rotation, push the forward/reverse slider (3) to the left (when viewed
from the chuck end). Model DR560
To select forward rotation, push the forward/reverse slider (3) to the left (when viewed
from the chuck end).
To select reverse rotation, push the forward/reverse slider (3) to the right (when viewed from the chuck end).

Switching on and off

To switch the tool on, press the variable speed switch (1). The tool speed depends on
how far you press the switch.
For continuous operation, press the lock-on button (2) and release the variable speed
switch. This option is available only at full speed.
To switch the tool off, release the variable speed switch. To switch the tool off when in
continuous operation, press the variable speed switch once more and release it.

WARNING: The drill should only be locked ON when it is held stationary in a drill
press stand or other means; NOT BY HAND! Never unplug the tool with the locking
feature engaged. To do so will cause the tool to start immediately the next time it is
plugged in.

Built-in level (DR260, DR340)

Your drill is equipped with a bubble level that assists you in drilling
level holes.

For horizontal drilling, tilt the drill up or down as required so the
bubble floats in the center of the parallel lines drawn on the glass.
When the bubble (6) is centered between the lines, as shown in
figure G, the drill is level.
To assure accuracy, first place a level on your workpiece and
position it so that it is level. Then, when the drill reads level, the
two will be aligned. (Any bubble level can only indicate level
relative to the earth.)

NOTE: The level is filled with mineral oil that may cause minor skin or eye irritation when contacted. If the level breaks and this fluid gets on your skin, rinse thoroughly with water. If any liquid gets in your eyes, rinse thoroughly with water and call a physician immediately.

Drilling

• Always unplug the drill when attaching or removing accessories. When attaching
accessories in the drill chuck, it is important to securely tighten the chuck using all three
holes to prevent slippage. When using a keyless chuck, hand tighten firmly.
• Use sharp drill bits only.
• Support and secure work properly, as instructed in the safety instructions.
• Use appropriate and required safety equipment, as instructed in the safety instructions.
• Secure and maintain work area, as instructed in the safety instructions.
• Plug in drill. Make sure switch turns drill on and off.
• Run the drill very slowly, using light pressure, until the hole is started enough to keep the
drill bit from slipping out of it.
• Apply pressure in a straight line with the bit. Use enough pressure to keep the bit biting
but not so much as to stall the motor or deflect the bit.
• hold the drill firmly with both hands to control its twisting action (figure A).
• Use side handle if drill (DR560) is equipped with one.
• DO NOT CLICK THE TRIGGER OF A STALLED DRILL OFF AND ON IN AN ATTEMPT TO START IT. DAMAGE TO THE DRILL CAN RESULT.
• Minimize stalling on breakthrough by reducing pressure and slowly drilling through the
last part of the hole.
• Keep the motor running while pulling the bit out of a drilled hole. This will help reduce jamming.

Drilling In wood

Holes in wood can be made with the same twist drill bits used for metal or with spade bits.
These bits should be sharp and should be pulled out frequently when drilling to clear chips
from the flutes.

Drilling In Metal

Use a cutting lubricant when drilling metals. The exceptions are cast iron and brass which
should be drilled dry. The cutting lubricants that work best are sulfurized cutting oil or lard oil.

Troubleshooting

Problem

• Unit will not start.

Possible Cause

Cord not plugged in.
Forward/reverse slider not fully depressed in desired direction.
Circuit fuse is blown.
Circuit breaker is tripped.
Cord or switch is damaged.

Possible Solution

Plug tool into a working outlet.

Push slider completely to the left or right.
Replace circuit fuse. (If the product repeatedly causes the circuit fuse to blow, discontinue use immediately and have it serviced at a Black & Decker service center or authorized servicer.)
Reset circuit breaker. (If the product repeatedly causes the circuit breaker to trip, discontinue use immediately and have it serviced at a Black & Decker service center or authorized servicer.)
Have cord or switch replaced at Black & Decker Service Center or Authorized Servicer.

For assistance with your product, visit our website www.blackanddecker.com for the
location of the service center nearest you or call the BLACK & DECKER help line at
1-800-544-6986.

MAINTENANCE

Use only mild soap and damp cloth to clean the tool. Never let any liquid get inside the
tool; never immerse any part of the tool into a liquid.
IMPORTANT: To assure product SAFETY and RELIABILITY, repairs, maintenance and
adjustment should be performed by authorized service centers or other qualified service
personnel, always using identical replacement parts.

ACCESSORIES
Recommended accessories for use with your tool are available from your local dealer or
authorized service center. If you need assistance regarding accessories, please call:
1-800-544-6986.
WARNING: The use of any accessory not recommended for use with this tool could
be hazardous.

SERVICE INFORMATION
All Black & Decker Service Centers are staffed with trained personnel to provide
customers with efficient and reliable power tool service. Whether you need technical
advice, repair, or genuine factory replacement parts, contact the Black & Decker location
nearest you. To find your local service location, refer to the yellow page directory under
“Tools—Electric” or call: 1-800-544-6986 or visit www.blackanddecker.com

FULL TWO-YEAR HOME USE WARRANTY

Black & Decker (U.S.) Inc. warrants this product for two years against any defects in
material or workmanship. The defective product will be replaced or repaired at no charge
in either of two ways.
The first, which will result in exchanges only, is to return the product to the retailer from
whom it was purchased (provided that the store is a participating retailer). Returns should
be made within the time period of the retailer’s policy for exchanges (usually 30 to 90 days
after the sale). Proof of purchase may be required. Please check with the retailer for their
specific return policy regarding returns that are beyond the time set for exchanges.
The second option is to take or send the product (prepaid) to a Black & Decker owned or
authorized Service Center for repair or replacement at our option. Proof of purchase may
be required. Black & Decker owned and authorized Service Centers are listed under
“Tools-Electric” in the yellow pages of the phone directory.
This warranty does not apply to accessories. This warranty gives you specific legal rights
and you may have other rights which vary from state to state or province to province.
Should you have any questions, contact the manager of your nearest Black & Decker
Service Center. This product is not intended for commercial use.
FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are missing, call 1-800-544-6986 for a free replacement.
LATIN AMERICA: This warranty does not apply to products sold in Latin America. For
products sold in Latin America, check country specific warranty information contained in
the packaging, call the local company or see the website for warranty information.

MAXIMUM RECOMMENDED CAPACITIES

Cat. # Type Steel Soft Wood Hard Wood Masonry
DR260 3/8in. Drill 3/8in.(10mm) Twist Bit 1-1/4in.(31.7mm) 1in.(25.4mm) N/A
DR340 3/8in. Drill 3/8in.(10mm) Twist Bit 1-1/4in.(31.7mm) 1in.(25.4mm) N/A
DR560 1/2in. Drill 1/2in.(13mm) Twist Bit 1-1/2in.(38.1mm) 1-1/4in.(31.7mm) N/A

Imported by
Black & Decker (U.S.) Inc.,
701 E. Joppa Rd.
Towson, MD 21286 U.S.A.

See ‘Tools-
Electric’
– yellow Pages –
for Service &
Sales