DeWalt D21520-XE Instruction Manual

D21520-XE

13mm (1/2") SPADE HANDLE DRILL

INSTRUCTION MANUAL

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Definitions: Safety Guidelines

The definitions below describe the level of severity for each signal
word. Please read the manual and pay attention to these symbols.

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 moderate injury.
NOTICE: indicates a practice not related to personal injury which, if

not avoided, may result in property damage.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL,
CALL US AT: 1800 444 224 (Aust) or 0800 339 258 (NZ).

SAFETY INSTRUCTIONS FOR POWER TOOLS

When using power tools, always observe the safety regulations applicable in your
country to reduce the risk of fire, electric shock and personal injury. Read the following
safety instructions before attempting to operate this product. Keep these instructions in
a safe place.

WARNING: To reduce the risk of injury, read the instruction manual.

GENERAL POWER TOOL SAFETY WARNINGS

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.

The term “power tool” in the warnings refers to your mains-operated (corded) power
tool or battery-operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

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 residual

current device (RCD) protected supply. Use of an RCD 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, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce personal injuries.

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c) Prevent unintentional starting. Ensure the switch is in the off position

before plugging in. Carrying power tools with your finger on the switch or
plugging in 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 jewellery. Keep your hair,

clothing and gloves away from moving parts. Loose clothes, jewellery 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 and in the manner intended for the particular type of
power tool, 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.

Electrical Safety

The electric motor has been designed for one voltage only. Always check that the
power supply corresponds to the voltage on the rating plate. 230 V AC means your
tool will operate on alternating current. As little as 10% lower voltage can cause loss
of power and can result in overheating. All DEWALT tools are factory tested; if this
tool does not operate, check the power supply. Your DEWALT tool is double insulated,
therefore no earth wire is required.

• Young children and the infirm. This appliance is not intended for use by
young children or infirm persons without supervision. Young children should be
supervised to ensure that they do not play with this appliance.

• Replacement of the supply cord. If the supply cord is damaged, it must be
replaced by the manufacturer or an authorised DEWALT Service Centre in order
to avoid a hazard.

Extension Cords

CAUTION: Use only extension cords that are approved by the country’s Electrical
Authority. Before using extension cords, inspect them for loose or exposed wires,
damaged insulation and defective fittings. Replace the cord if necessary.

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MINIMUM GAUGE FOR CORD SETS
For Cable length (m): 7.5 15 25 30 45 60
Use Cable with minimum rating (Amperes)
Tool Amperes

0 - 3.4 7.5 7.5 7.5 7.5 7.5 7.5

3.5 - 5.0 7.5 7.5 7.5 7.5 10 15

5.1 - 7.0 10 10 10 10 15 15

7.1 - 12.0 15 15 15 15 20 20

12.1 - 20.0 20 20 20 20 25 –

Drill Safety Warnings

• Hold tool by insulated gripping surfaces when performing an operation
where the cutting tools may contact hidden wiring or its own cord. Contact

with a “live” wire will make exposed metal parts of the tool “live” and shock the
operator.

• Accessories must be rated for at least the speed recom mended on the tool
warning label. Wheels and other accessories running over rated speed can fly

apart and cause injury. Accessory ratings must be above listed minimum wheel
speed as shown on tool nameplate.

• Wear safety goggles or other eye protection. Hammering and drilling operations
cause chips to fly. Flying particles can cause permanent eye damage.

• Keep handles dry, clean, and free from oil and grease. This will enable better
control of the tool.

• Air vents often cover moving parts and should be avoided. Loose clothes,
jewelry or long hair can be caught in moving parts.

WARNING: We recommend the use of a residual current device with a residual

current rating of 30mA or less.

WARNING: ALWAYS wear approved protective safety equipment complying with

the following standards:

• Eye protection: AS/NZS1337 Eye Protectors for Industrial Applications;

• Hearing protection: AS/NZS1270 Acoustics – Hearing Protection;

• Respiratory protection: AS/NZS1716 Respiratory Protective Devices.

WARNING: Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known 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 disburse 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 wear proper personal hearing protection that conforms to

AS/NZS1270 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. The symbols and their

definitions are as follows:

V ................. volts A ...............amperes

Hz ............... hertz W ..............watts

min ............. minutes ...........alter nating current

........ direct current ...........alternating or direct current

.............. Class I Construction no ..............no load speed

................... (grounded) .............earthing terminal

.............. Class II Construction ..............safety alert symbol

................... (double insulated) BPM ..........beats per minute

…/min ........per minute RPM ..........revolutions per minute

IPM ............. impacts per minute

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FIG. 1

B

A

FIG. 2

SAVE THESE INSTRUCTIONS FOR FUTURE USE

COMPONENTS (Fig. ?)

WARNING: Never modify the power tool or any part of it. Damage or personal
injury could result.
A. Trigger switch

B. Control lever

ASSEMBLY AND ADJUSTMENTS

Spade Handle Assembly (Fig. 1)

This spade handle can be attached either horizontally or vertically. Place the handle
into the locating boss on the back of the drill and assemble with holding knob.

Side Handle (Fig. 1)

The side handle can be placed in either side of the drill or the top of the drill according
to operator preference and available working clearance. The spade handle can be
temporarily removed if working clearance at rear of tool is limited. Always replace
spade handle when possible.

CAUTION: Always use the side handle and switch handle. This is a high-torque
drill. Always hold it firmly with both hands when operating.

OPERATION

WARNING: To reduce the risk of serious personal injury, turn tool off and
disconnect tool from power source before making any adjustments or removing/
installing attachments or accessories.

Motor

Your DEWALT tool is powered by a DEWALT built motor. Be sure your power supply
agrees with the nameplate marking. Voltage decrease of more than 10% will cause
loss of power and overheating. All DEWALT tools are factory tested; if this tool does
no operate, check the power supply.

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Trigger Switch (Fig. 2)

To turn the tool on, squeeze the trigger switch (A) shown in Figure 2. To turn the tool
off, release the trigger switch (A).

To operate the drill in forward direction, move the directional control lever (B) to left.
To operate the drill in reverse, move the lever (B) to the right.

Chuck

To insert bit, open chuck jaws by turning collar with fingers and insert shank of bit
about 19 mm (3/4") into chuck. Tighten chuck collar by hand. Place chuck key in
each of the three holes and tighten in clockwise direction. It’s important to tighten
chuck with all three holes.

To release bit, turn chuck key counterclockwise in just one hole, then loosen the
chuck by hand.

FIG. 3

FIG. 4

Chuck Removal (Fig. 3, 4)

1. Place chuck key in chuck as shown in Figure 3. Using a wooden mallet or similar

object, strike key sharply in a CLOCKWISE direction. This will loosen screw inside
chuck.

2. Open chuck jaws fully. Insert screwdriver into front of chuck between jaws to

engage screw head. Remove screw by turning clockwise (left-hand thread).

3. Place key in chuck as shown in Figure 4. Using a wooden mallet or similar

object, strike key sharply in a COUNTERCLOCKWISE direction. This will loosen
chuck so that it can be unscrewed by hand.

Drilling

1. Always turn off tool and disconnect from power supply when attaching or
changing bits or accessories.

2. Use sharp drill bits only. For WOOD, use twist drill bits, spade bits, power auger
bits, or hole saws. For METAL, use high speed steel twist drill bits or hole saws.
For MASONRY, such as brick, cement, cinder block, etc., use carbide-tipped bits

3. Be sure the material to be drilled is anchored or clamped firmly. If drilling thin
material, use a “back-up” block to prevent damage to the material.

4. Always apply pressure in a straight line with the bit. Use enough pressure to keep
the drill bit biting, but do not push hard enough to stall the motor or deflect the
bit.

5. Hold tool firmly to control the twisting action of the drill.

6. IF DRILL STALLS, it is usually because it is being overloaded. RELEASE TRIGGER

IMMEDIATELY, remove drill bit from work, and determine cause of stalling. DO
NOT CLICK TRIGGER ON AND OFF IN AN ATTEMPT TO START A STALLED
DRILL – THIS CAN DAMAGE THE DRILL.

7. To minimize stalling on breaking through the material, reduce pressure on drill
and ease the bit through the last fractional part of the hole.

8. Keep the motor running when pulling the bit back out of a drilled hole. This will
help prevent jamming.

Drilling in Wood

Holes in wood can be made with the same twist drills used for metal. These bits may
overheat unless pulled out frequently to clear chips from the flutes. For larger holes,
use spade bits, power auger bits, or hole saws. Work that is likely to splinter should
be backed up with a block of wood.

Drilling in Metals

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 sulphurised
cutting oil or lard oil; bacon grease will also serve the purpose.

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Drilling in Masonry

Use carbide tipped masonry bits at low speeds. Keep even force on the drill but not
so much that you crack the brittle materials. A smooth, even flow of dust indicates the
proper drilling rate.

MAINTENANCE

WARNING: To reduce the risk of serious personal injury, turn tool off and
disconnect tool from power source before making any adjustments or removing/
installing attachments or accessories.

Motor Brushes

This DEWALT tool uses an advanced brush system which auto matically stops the tool
when the brushes wear out. This prevents seri ous damage to the motor.

Lubrication

All bearings used are factory lubricated to last the life of the tool. All needle bearings
used receive their lubrication from the grease in the gear case. Clean and relubricate
gear case yearly or whenever servicing requires the gear case to be removed. Use
type and quantity of grease shown on Parts Bulletin packed with your tool.

Gear case is removed by removing the four screws from the front of the tool. If the
chuck is too large to permit removal of the two top screws, see instructions for chuck
removal.

Cleaning

WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once
a week. To minimize the risk of eye injury, always wear AS/NZS51337 approved eye
protection when performing this.

WARNING: Never use solvents or other harsh chemicals for cleaning the
non-metallic parts of the tool. These chemicals may weaken the plastic materials
used in these parts. Use a cloth dampened only with water and mild soap. Never let
any liquid get inside the tool; never immerse any part of the tool into a liquid.

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment
(including brush inspection and replacement) should be performed by certified
service centers or other qualified service organizations, always using identical
replacement parts.

ACCESSORIES

WARNING: Since accessories, other than those offered by DEWALT, have not been
tested with this product, use of such accessories with this tool could be hazardous.
To reduce the risk of injury, only DEWALT recommended accessories should be used
with this product.
Recommended accessories for use with your tool are available at extra cost from
your local service center. If you need any assistance in locating any accessory, please
contact Stanley Black & Decker, 82 Taryn Drive, Epping, VIC 3076 Australia or call
1800 444 224 or (NZ) 0800 339 258.

For safety in use, the following accessories should be used only in sizes up to the
maximums shown in the following table.

MAXIMUM RECOMMENDED CAPACITIES

Drill Capacity 1 3mm (1/2")
RPM 550

Steel twist bit 13 mm (1/2")
Auger 38 mm (1-1/2")
Self-feed 76 mm ( 3")
Spade 38 mm (1-1/2")
Wood holesaw 127 mm (5")
Steel holesaw 102 mm (4")

ACCESSORY MUST BE RATED FOR USE AT SPEED EQUAL TO OR HIGHER THAN
NAMEPLATE RPM OF TOOL WITH WHICH IT IS BEING USED.

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Stanley Black & Decker

701 East Joppa Road, Baltimore, MD 21286 • 82 Taryn Drive, Epping, VIC 3076 Australia

1800 444 224 (Aust) or 0800 339 258 (NZ)

(JUL11) Part No. N130171 D21520-XE Copyright © 2011 DEWALT

The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the “D” shaped air intake grill; the array of pyramids on the handgrip;
the kit box configuration; and the array of lozenge-shaped humps on the surface of the tool.