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Cordless Impact
Wrench
Equipped with Electric Brake
12.7 mm (1/2”)
MODEL BTW120
002298
INSTR U CTION MANU AL
WARNING:
For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.
www.makitatools.com
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SPECIFICATIONS Model BTW120 Standard bolt M8 - M14 (5/16” - 9/16”) Capacities High tensile bolt M6 - M12 (1/4” - 1/2”) Square drive 12.7 mm (1/2”) No load speed (RPM) 0 - 2,300/min. Impacts per minute 0 - 3,000 Max. fastening torque 120 N.m (88 ft.lbs) Overall length 176 mm (6-15/16”) Net weight 1.5 kg (3.3 lbs) Battery Cartridge Voltage Battery Charger Input Output Charging time BH1220 30 min. A. C. only D. C. 12 V DC14SA 50 Hz - 60 Hz 7.2 V - 14.4 V BH1233 50 min. • Manufacturer reserves the r
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3. Keep bystanders, children, and visitors shoes, hard hat, or hearing protection must away while operating a power tool. Distrac- be used for appropriate conditions. tions can cause you to lose control. Tool Use and Care Electrical Safety 12. Use clamps or other practical way to 4. A battery operated tool with integral bat- secure and support the workpiece to a teries or a separate battery pack must be stable platform. Holding the work by hand or recharged only with the specified charger agains
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20. Use only accessories that are recom- SERVICE mended by the manufacturer for your 21. Tool service must be performed only by model. Accessories that may be suitable for qualified repair personnel. Service or main- one tool may create a risk of injury when tenance performed by unqualified personnel used on another tool. may result in a risk of injury. 22. When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthori
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SYMBOLS USD302-1 The followings show the symbols used for tool. V ....................... volts .../min................revolutions or reciprocation per minute ................... direct current ................number of blow ................... no load speed n ˚ IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER & BATTERY CARTRIDGE USC002-3 1. SAVE THESE INSTRUCTIONS- This man- 6. To reduce risk of damage to electric plug ual contains important safety and operat- and cord, pull by plug rather than cord
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damaged in any way; take it to a qualified 14. Young children should be supervised to serviceman. ensure that they do not play with the bat- tery charger. 11. Do not disassemble charger or battery cartridge; take it to a qualified serviceman 15. If operating time has become excessively when service or repair is required. Incor- shorter, stop operating immediately. It rect reassembly may result in a risk of may result in a risk of overheating, possi- electric shock or fire. ble burns and even an
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SYMBOLS The following show the symbols used for the charger. Be sure that you understand their meaning before use. .......... Ready to charge ...........Delay charge (Cooling) ............. Charging ........Defective battery ............. Charging complete ....Conditioning ...........Cooling abnormality 7
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FUNCTIONAL CAUTION: DESCRIPTION • Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking function on the tool. 002305 Installing or removing battery cartridge • Always switch off the tool before insertion or removal of the battery cartridge. 1 • To remove the battery cartridge, withdraw it from the tool while sliding the button on the side of the cartridge. 3 • To insert the battery cartridge, align the tongue on the 2 battery cartridge wi
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5. If you leave the battery cartridge in the charger after the charging cycle is complete, the charger will switch into its “trickle charge (maintenance charge)” mode which will last approximately 24 hours. 6. After charging, unplug the charger from the power source. NOTE: • The battery charger is for charging Makita battery cartridge. Never use it for other purposes or for other manufacturer’s batteries. • When you charge a new battery cartridge or a battery cartridge which has not been used fo
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on the charger and battery, which can be sometime clogged with dust. • The cooling system is in order although no sound of cooling fan comes out, if the yellow warning light will not flash. • Always keep clean the vent on charger and battery for cooling. • The products should be sent to repair or maintenance, if the yellow warning light will frequently flash. Conditioning charge Conditioning charge can extend the life of battery by auto- matically searching the optimum charging condition for the
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Refresh charging Refreshing adapter (optional accessory) can refresh an inac- tive battery cartridge. Refresh charging should be done once a week. When you charge a new battery cartridge or a battery car- tridge that has not been used for a long time, it may not accept a full charge. In this case, refresh charging must be done. The battery cartridge my decrease the tool perfor- mance, because the chemical substance of the battery car- tridge is inactive. 002319 Switch action CAUTION: • Before in
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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. Selecting correct socket Always use the correct size socket for bolts and nuts. An incorrect size socket will result in inaccurate and inconsistent fastening torque and/or damage to the bolt or nut. 002334 Installing or removing socket To install the socket, push it onto the anvil of the tool until it 1 locks into place. To remove the socket, simply pull
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• 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. The fastening torque is affected by a wide variety of factors including the following. After fastening, always check the torque with a torque wrench. 1. When the battery cartridge is discharged almost com- pletely, voltage will drop and the fastening torque will be reduced. 2. Socket • Failure to use the correct size socket will cause a
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001145 Replacing carbon brushes Remove and check the carbon brushes regularly. Replace when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only iden- tical carbon brushes. 1 1. Limit mark 002376 Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure 1 the brush holder caps. After replacing brushes, insert the battery cartridge
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Memo 15
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Memo 16
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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 17 Cut
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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 From Dealer Exhibition Tool Distributor Newspaper From Friend Industrial Supply Store Display Previous Usage Construction Supply Catalog Other ( ) 2. Use of the product is intended for: 4. Most favored points are: Construction Trade Design Repair Se
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FACTORY SERVICE CENTERS 1-800-4-MAKITA RETAIN THIS PORTION FOR YOUR RECORDS ARIZONA FLORIDA MISSOURI PENNSYLVANIA 3707 E. Broadway Rd., Ste. 6 750 East Sample Road 9876 Watson Road 1704 Babcock Blvd. Phoenix, AZ 85040 Pompano Beach, FL 33064 St. Louis, MO 63126-2221 Pittsburgh, PA 15209 (602) 437-2850 (954) 781-6333 (314) 909-9889 (412) 822-7370 CALIFORNIA GEORGIA NEBRASKA PUERTO RICO 41850 Christy St. 4680 River Green Parkway NW 4129 S. 84th St. 200 Guayama St. Fremont, CA 94538-5107 Duluth,
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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
