Cordless Angle Drill
Equipped with Electric Brake
MODEL DA391D
I N S T R U C T I O N M A N U A L
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
w w w. m a k i t a t o o l s . c o m
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Electrical Safety
Tool Use and Care
4. A battery operated tool with integral bat-
teries or a separate battery pack must be
recharged only with the specified charger
for the battery. A charger that may be suit-
able for one type of battery may create a risk
of fire when used with another battery.
12. Use clamps or other practical way to
secure and support the workpiece to a
stable platform. Holding the work by hand or
against your body is unstable and may lead
to loss of control.
13. Do not force tool. Use the correct tool for
your application. The correct tool will do the
job better and safer at the rate for which it is
designed.
5. Use battery operated tool only with specif-
ically designated battery pack. Use of any
other batteries may create a risk of fire.
14. Do not use tool if switch does not turn it
on or off. A tool that cannot be controlled
with the switch is dangerous and must be
repaired.
Personal Safety
6. Stay alert, watch what you are doing, and
use common sense when operating a
power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or
medication. A moment of inattention while
operating power tools may result in serious
personal injury.
15. Disconnect battery pack from tool or
place the switch in the locked or off posi-
tion before making any adjustments,
changing accessories, or storing the tool.
Such preventive safety measures reduce the
risk of starting the tool accidentally.
7. Dress properly. Do not wear loose cloth-
ing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from
moving parts. Loose clothes, jewelry, or long
hair can be caught in moving parts.
16. Store idle tools out of reach of children
and other untrained persons. Tools are
dangerous in the hands of untrained users.
17. When battery pack is not in use, keep it
away from other metal objects like: paper
clips, coins, keys, nails, screws, or other
small metal objects that can make a con-
nection from one terminal to another.
Shorting the battery terminals together may
cause sparks, burns, or a fire.
8. Avoid accidental starting. Be sure switch
is in the locked or off position before
inserting battery pack. Carrying tools with
your finger on the switch or inserting the bat-
tery pack into a tool with the switch on invites
accidents.
9. Remove adjusting keys or wrenches
before turning the tool on. A wrench or a
key that is left attached to a rotating part of
the tool may result in personal injury.
18. Maintain tools with care. Keep cutting
tools sharp and clean. Properly maintained
tools with sharp cutting edge are less likely to
bind and are easier to control.
10. Do not overreach. Keep proper footing
and balance at all times. Proper footing and
balance enable better control of the tool in
unexpected situations.
19. Check for misalignment or binding of
moving parts, breakage of parts, and any
other condition that may affect the tool’s
operation. If damaged, have the tool ser-
viced before using. Many accidents are
caused by poorly maintained tools.
11. Use safety equipment. Always wear eye
protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must
be used for appropriate conditions.
20. Use only accessories that are recom-
mended by the manufacturer for your
model. Accessories that may be suitable for
one tool may create a risk of injury when
used on another tool.
3
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22. When servicing a tool, use only identical
replacement parts. Follow instructions in
the Maintenance section of this manual.
Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of
shock or injury.
SERVICE
21. Tool service must be performed only by
qualified repair personnel. Service or main-
tenance performed by unqualified personnel
may result in a risk of injury.
SPECIFIC SAFETY RULES
USB022-2
DO NOT let comfort or familiarity with product (gained from
repeated use) replace strict adherence to cordless drill safety
rules. If you use this tool unsafely or incorrectly, you can suffer
serious personal injury.
1. Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring.
Contact with a “live” wire will also make
exposed metal parts of the tool “live” and
shock the operator.
5. Hold the tool firmly.
6. Keep hands away from rotating parts.
7. Do not leave the tool running. Operate the
tool only when hand-held.
8. Do not touch the drill bit or the workpiece
immediately after operation; they may be
extremely hot and could burn your skin.
2. Be aware that this tool is always in an
operating condition, because it does not
have to be plugged into an electrical out-
let.
9. Some material contains chemicals which
may be toxic. Take caution to prevent
working dust inhalation and skin contact.
Follow material supplier safety data.
3. Always be sure you have a firm footing.
4. Be sure no one is below when using the
tool in high locations.
SAVE THESE INSTRUCTIONS
WARNING:
MISUSE or failure to follow the safety rules stated in this
instruction manual may cause serious personal injury.
4
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IMPORTANT SAFETY INSTRUCTIONS FOR
BATTERY CARTRIDGE
ENC004-1
1. Before using battery cartridge, read all
instructions and cautionary markings on
(1) battery charger, (2) battery, and (3)
product using battery.
(2) Avoid storing battery cartridge in a
container with other metal objects
such as nails, coins, etc.
(3) Do not expose battery cartridge to
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It
may result in a risk of overheating, possi-
ble burns and even an explosion.
water or rain.
A battery short can cause a large current
flow, overheating, possible burns and
even a breakdown.
4. If electrolyte gets into your eyes, rinse
them out with clear water and seek medi-
cal attention right away. It may result in
loss of your eyesight.
5. Always cover the battery terminals with
the battery cover when the battery car-
tridge is not used.
7. Do not store the tool and battery cartridge
in locations where the temperature may
reach or exceed 50°C (122°F).
8. Do not incinerate the battery cartridge
even if it is severely damaged or is com-
pletely worn out. The battery cartridge can
explode in a fire.
6. Do not short the battery cartridge:
9. Be careful not to drop or strike battery.
(1) Do not touch the terminals with any
conductive material.
SAVE THESE INSTRUCTIONS
Tips for maintaining maximum battery life
1. Charge the battery cartridge before com-
pletely discharged.
3. Charge the battery cartridge with room
temperature at 10°C - 40°C (50°F - 104°F).
Let a hot battery cartridge cool down
before charging it.
Always stop tool operation and charge the
battery cartridge when you notice less
tool power.
4. Charge the Nickel Metal Hydride battery
cartridge when you do not use it for more
than six months.
2. Never recharge a fully charged battery
cartridge.
Overcharging shortens the battery service
life.
5
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FUNCTIONAL
DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and the
battery cartridge is removed before adjusting or
checking function on the tool.
002055
Installing or removing battery cartridge
1
•
Always switch off the tool before insertion or removal of
the battery cartridge.
•
To remove the battery cartridge, pull out the set plate on
the tool and grasp both sides of the cartridge while
withdrawing it from the tool.
2
•
•
To insert the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Snap the set plate back into place. Be sure
to close the set plate fully before using the tool to prevent
the battery cartridge from accidentally falling out of the
tool.
1. Set plate
2. Battery cartridge
Do not use force when inserting the battery cartridge. If
the cartridge does not slide in easily, it is not being
inserted correctly.
002870
Switch action
CAUTION:
•
Before inserting the battery cartridge into the tool,
always check to see that the switch trigger actuates
properly and returns to the “OFF” position when
released.
1
To start the tool, simply pull the switch trigger. Tool speed is
increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
1. Switch trigger
Electric brake
This tool is equipped with an electric brake. If the tool consis-
tently fails to quickly stop after switch trigger release, have
tool serviced at a Makita service center.
6
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002871
Reversing switch action
This tool has a reversing switch to change the direction of
rotation. Move the reversing switch lever to the “FWD” posi-
tion for clockwise rotation or the “REV” position for counter-
clockwise rotation.
1
2
When the reversing switch lever is in the neutral position, the
switch trigger cannot be pulled.
1. Reversing switch lever
2. Switch trigger
CAUTION:
•
•
Always check the direction of rotation before operation.
Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation before
the tool stops may damage the tool.
•
When not operating the tool, always set the reversing
switch lever to the neutral position.
002106
Overload protector
The overload protector automatically cuts out to break the
circuit and the button pops out, whenever heavy work is pro-
longed. Wait 20 - 30 seconds before pressing the reset but-
ton to resume operation. The tool should be switched off
when you press the reset button, however.
1
1. Reset button
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and the
battery cartridge is removed before carrying out any
work on the tool.
002123
Installing or removing driver bit or drill bit
1
2
Hold the ring and turn the sleeve counterclockwise to open
the chuck jaws. Place the bit in the chuck as far as it will go.
Hold the ring firmly and turn the sleeve clockwise to tighten
the chuck.
To remove the bit, hold the ring and turn the sleeve counter-
clockwise.
1. Sleeve
2. Ring
7
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OPERATION
002136
Screwdriving operation
Place the point of the driver bit in the screw head and apply
pressure to the tool. Start the tool slowly and then increase
the speed gradually. Release the trigger just as the screw
bottoms out. If the trigger is not released, the screw may strip
out the hole or the screw and/or bit may be damaged.
NOTE:
•
Make sure that the driver bit is inserted straight in the
screw head, or the screw and/or bit may be damaged.
•
When driving wood screws, predrill pilot holes to make
driving easier and to prevent splitting of the workpiece.
See the chart.
Nominal diameter of
wood screw (mm)
3.1 (1/8”)
Recommended size
of pilot hole (mm)
2.0 - 2.2 (5/64” - 3/32”)
2.2 - 2.5 (3/32” - 3/32”)
2.5 - 2.8 (3/32” - 7/64”)
2.9 - 3.2 (7/64” - 1/8”)
3.5 (9/64”)
3.8 (5/32”)
4.5 (11/64”)
•
If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for 15
minutes before proceeding with a fresh battery.
Drilling operation
Drilling in wood
When drilling in wood, the best results are obtained with
wood drills equipped with a guide screw. The guide screw
makes drilling easier by pulling the bit into the workpiece.
Drilling in metal
To prevent the bit from slipping when starting a hole, make
an indentation with a center-punch and hammer at the point
to be drilled. Place the point of the bit in the indentation and
start drilling.
Use a cutting lubricant when drilling metals. The exceptions
are iron and brass which should be drilled dry.
CAUTION:
•
Pressing excessively on the tool will not speed up the
drilling. In fact, this excessive pressure will only serve to
8
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damage the tip of your bit, decrease the tool
performance and shorten the service life of the tool.
•
•
There is a tremendous force exerted on the tool/bit at the
time of hole break through. Hold the tool firmly and exert
care when the bit begins to break through the workpiece.
A stuck bit can be removed simply by setting the
reversing switch to reverse rotation in order to back out.
However, the tool may back out abruptly if you do not
hold it firmly.
•
•
Always secure small workpieces in a vise or similar hold-
down device.
If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for 15
minutes before proceeding with a fresh battery.
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and the
battery cartridge is removed before attempting to
perform inspection or maintenance.
To maintain product SAFETY and RELIABILITY, repairs, any
other maintenance or adjustment should be performed by
Makita Authorized or Factory Service Centers, always using
Makita replacement parts.
EN0001-1
Recycling the Battery
The only way to dispose of a Makita battery is to recycle it.
The law prohibits any other method of disposal.
To recycle the battery:
1. Remove the battery from the tool.
Ni-Cd
2. a) Take the battery to your nearest Makita Factory Ser-
vice Center
or
b) Take the battery to your nearest Makita Authorized
Service Center or Distributor that has been desig-
nated as a Makita battery recycling location.
Call your nearest Makita Service Center or Distributor to
determine the location that provides Makita battery recycling.
See your local Yellow Pages under “Tools-Electric”.
9
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ACCESSORIES
CAUTION:
•
These accessories or attachments are recommended for
use with your Makita tool specified in this manual. The
use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding these
accessories, ask your local Makita service center.
•
•
•
•
•
•
•
Drill bits
Screw bits
Various type of Makita genuine batteries and chargers
Rubber pad assembly
Wool bonnet
Foam polishing pad
Plastic carrying case
10
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Memo
11
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Memo
12
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First-Class
Postage
Required
Post Office will
not deliver
without proper
postage.
Makita U.S.A., Inc.
14930 Northam Street
La Mirada, CA 90638-5753
Fold
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MAIL THIS PORTION
Your answers to the following questions are appreciated.
1.This product was purchased from:
3. How did you learn about this product:
Home Center
Other (
)
Magazine
Radio
Hardware/Lumber Store
Tool Distributor
From Dealer
Newspaper
Store Display
Catalog
Exhibition
From Friend
Previous Usage
Other (
Industrial Supply
Construction Supply
)
2. Use of the product is intended for:
4. Most favored points are:
Construction Trade
Industrial Maintenance
Home Maintenance
Hobby
Design
Repair Service
Durability
Power
Features
Size
Price
Other (
)
Other (
)
Makita Brand
5. Any comments:
DATE PURCHASED
MONTH
MODEL NO.
DAY
YEAR
SERIAL NO.
STATUS
SEX
Married Single
M
F
INTL.
LAST NAME / COMPANY NAME
STREET ADRESS
CITY
AREA
CODE
STATE
ZIP CODE
PHONE
40-49
Under 19
20-29
30-39
50-60
Over 60
AGE:
BE SURE TO COMPLETE THE CUSTOMER’S PORTION OF THIS FORM AND RETAIN FOR YOUR RECORDS.
Please return this portion by facsimile or mail.
Facsimile No: (714) 522-8133
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Paste
Paste
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FACTORY SERVICE CENTERS
1-800-4-MAKITA
RETAIN THIS PORTION FOR YOUR RECORDS
ARIZONA
FLORIDA
MISSOURI
PENNSYLVANIA
1704 Babcock Blvd.
Pittsburgh, PA 15209
(412) 822-7370
3707 E. Broadway Rd., Ste. 6
Phoenix, AZ 85040
(602) 437-2850
750 East Sample Road
Pompano Beach, FL 33064
(954) 781-6333
9876 Watson Road
St. Louis, MO 63126-2221
(314) 909-9889
CALIFORNIA
GEORGIA
NEBRASKA
PUERTO RICO
41850 Christy St.
Fremont, CA 94538-5107
(510) 657-9881
4680 River Green Parkway NW
Duluth, GA 30096
(770) 476-8911
4129 S. 84th St.
Omaha, NE 68127
(402) 597-2925
200 Guayama St.
Hato Rey, PR 00917
(787) 250-8776
14930 Northam St.
La Mirada, CA 90638-5753
(714) 522-8088
ILLINOIS
NEVADA
3375 S. Decatur Blvd.
Suites. 22 - 24
Las Vegas, NV 89102
(702) 368-4277
TENNESSEE
1120 Elm Hill P.
Suile 170 Nashville, TN 372
(615) 248-3321
1450 Feehanville Dr.
Mt. Prospect, IL 60056-6011
(847) 297-3100
1970 Fulton Avenue
Sacramento, CA 95825
(916) 482-5197
MARYLAND
TEXAS
7674 Clairemont Mesa Blvd.
San Diego, CA 92111
(858) 278-4471
7397 Washington Boulevard,
Suite 104 Elkridge, MD 21075
(410) 796-4401
NEW JERSEY
12801 Stemmons Fwy Ste. 809
Farmers Branch, TX 75234
(972) 243-1150
251 Herrod Blvd.
Dayton, NJ 08810-1539
(609) 655-1212
16735 Saticoy St., Ste. 105
Van Nuys, CA 91406
(818) 782-2440
12701 Directors Dr.
Stafford, TX 77477-3701
(281) 565-8665
MASSACHUSETTS
232 Providence Hwy.
Westwood, MA 02090
(781) 461-9754
NEWYORK
4917 Genessee Street
Cheektowaga, NY 14225
(716) 685-9503
3453 IH-35 North, Ste. 101
San Antonio, TX 78219
(210) 228-0676
COLORADO
11839 E. 51st Ave.
Denver, CO 80239-2709
(303) 371-2850
MINNESOTA
6427 Penn Ave. South
Richfield, MN 55423
(612) 869-5199
OREGON
828 19th Avenue, N.W.
Portland, OR 97209
(503) 222-1823
WISCONSIN
Lincoln Plaza Shopping Ctr.
2245 S. 108th St. West Allis, WI
53227
(414) 541-4776
CUSTOMER’S RECORD
Date Purchased
When you need service: Send
complete tool (prepaid) to one
of the Makita Factory Service
Centers listed, or to an Authorized
Makita Service Center. Be sure
to attach a letter to the outside of
the carton detailing the problem
with your tool.
Dealer’s Name & Address
Model No.
Serial No.
15
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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.
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period of ONE YEAR from the date of original purchase.
Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of
Makita’s Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective
workmanship or material, Makita will repair (or at our option, replace) without charge.
This Warranty does not apply where:
• repairs have been made or attempted by others:
• repairs are required because of normal wear and tear:
• the tool has been abused, misused or improperly maintained:
• alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING
AND AFTER THE TERM OF THIS WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
“MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,” AFTER THE ONE YEAR TERM OF THIS
WARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied
warranty lasts, so the above limitation may not apply to you.
Makita Corporation
3-11-8, Sumiyoshi-cho,
Anjo, Aichi 446-8502 Japan
883781J061
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