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Demolition Hammer
MODEL HM1242C
002879
DOUBLE
INSULATION
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 HM1242C Blows per minute 950 - 1,900 Overall length 572 mm (22-3/4”) Net weight 9.3 kg (20.5 lbs) • Manufacturer reserves the right to change specifications without notice. Specifications may differ from country to country. GENERAL SAFETY RULES USA002-2 (For All Tools) WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury. SAVE THESE INSTRUCTIONS Work Area 4. Double
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6. Do not expose power tools to rain or wet Tool Use and Care conditions. Water entering a power tool will 15. Use clamps or other practical way to increase the risk of electric shock. secure and support the workpiece to a 7. Do not abuse the cord. Never use the cord stable platform. Holding the work by hand or to carry the tools or pull the plug from an against your body is unstable and may lead outlet. Keep cord away from heat, oil, to loss of control. sharp edges or moving parts. Replace 16.
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24. When servicing a tool, use only identical Use of unauthorized parts or failure to follow replacement parts. Follow instructions in Maintenance instructions may create a risk of the Maintenance section of this manual. electric shock or injury. USE PROPER EXTENSION CORD: Make sure your extension cord is in good condition. 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 l
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tion. Without proper warm-up, hammering 11. Do not point the tool at any one in the area operation is difficult. when operating. The bit could fly out and injure someone seriously. 7. Always be sure you have a firm footing. Be sure no one is below when using the 12. Do not touch the bit or parts close to the tool in high locations. bit immediately after operation; they may be extremely hot and could burn your 8. Hold the tool firmly with both hands. skin. 9. Keep hands away from moving parts. 13
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FUNCTIONAL CAUTION: DESCRIPTION Always be sure that the tool is switched off and unplugged before adjusting or checking function on the tool. 002889 Switch action 1 CAUTION: Before plugging in the tool, always check to see that the tool is switched off. Switch can be locked in “ON” position for ease of operator comfort during extended use. Apply caution when locking tool in “ON” position and maintain firm 1. Switch lever grasp on tool. To start the tool, push the switch lever on the left
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002899 Indicator lamp The green power-ON indicator lamp lights up when the tool is switched ON. If the indicator lamp is lit but the tool does not 1 start, the carbon brushes may be worn out, or the electric cir- 2 cuit or the motor may be defective. If the indicator lamp does not light up and the tool does not start, the ON/OFF switch or the mains cord may be defective. The red service indicator lamp lights up when the carbon 1. Power-ON indicator lamp(green) 2. Service indicator lamp(red) brus
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002919 Installing or removing the bit This tool accepts 3/4” Hexagonal and 21/32” round shank bits. Clean the bit shank and apply bit grease before installing the bit. 2 1 1. Bit grease 2. Bit shank 002920 Pull the tool holder cover down all the way. With the cut in the 1 bit shank aligned with the notch in the tool holder cap, insert 4 the bit into the tool holder. Release the tool holder cover. It will return automatically to 2 3 its original position to secure the bit. After installing, alway
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OPERATION 002945 Chipping/Scaling/Demolition Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool will not bounce around, uncontrolled. Pressing very hard on the tool will not increase the efficiency. MAINTENANCE CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. 001146 Replacing carbon brushes When the resin insulating tip inside the carbon brush is 2 exposed to co
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002954 Use a screwdriver to remove the brush holder caps. Take out 1 the worn carbon brushes, insert the new ones and secure 2 the brush holder caps. 1. Screwdriver 2. Brush holder cap 002967 Lubrication This tool requires no hourly or daily lubrication because it has a grease-packed lubrication system. It should be relubri- cated after every 6 months of operation. Send the complete 1 tool to Makita Authorized or Factory Service Center for this lubrication service. However, if circumstances requ
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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. 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
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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 13 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 ALABAMA COLORADO KENTUCKY NEW MEXICO PUERTO RICO 2365 Pelham Parkway 11839 E. 51st Ave. 1215 S. Hurstbourne Parkway 5805 Menaul Blvd. NE 200 Guayama St. Pelham, AL 35124 Denver, CO 80239-2709 Louisville, KY 40222 Albuquerque, NM 87110 Hato Rey, PR 00917 (205) 620-1791 (303) 371-2850 (502) 326-3740 (505) 881-4619 (787) 250-8776 ARIZONA CONNECTICUT LOUSIANA NEW YORK TENNESSEE 3707 E. Broadway Rd., Ste. 6 508 Spring St.
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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
