ENGLISH (Original instructions) INSTRUCTION MANUAL Rotary Hammer MT870 012278 DOUBLE INSULATION IMPORTANT: Read Before Using.
ENGLISH (Original instructions) SPECIFICATIONS Model MT870 Concrete Capacities 22 mm Core bit 54 mm Diamond core bit (dry type) 65 mm Steel 13 mm Wood 32 mm No load speed (min-1) 0 - 1,100 Blows per minute 0 - 4,350 Overall length 362 mm Net weight 2.5 kg Safety class /II • Due to our continuing programme of research and development, the specifications herein are subject to change without notice. • Specifications may differ from country to country.
Power tool use and care 18. 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. 19. 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. 20.
. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 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. Wear a hard hat (safety helmet), safety glasses and/or face shield. Ordinary eye or sun glasses are NOT safety glasses. It is also highly recommended that you wear a dust mask and thickly padded gloves. Be sure the bit is secured in place before operation.
This tool has a reversing switch to change the direction of rotation. Move the reversing switch lever to the position (A side) for clockwise rotation or the position (B side) for counterclockwise rotation. ASSEMBLY • Selecting the action mode 1. Action mode changing knob 2. Rotation only 3. Rotation with hammering 1 2 CAUTION: Always be sure that the tool is switched off and unplugged before carrying out any work on the tool. Side grip (auxiliary handle) 2 1 3 1. Thumb screw 2. Protrusions 3.
Insert the bit into the tool. Turn the bit and push it in until it engages. After installing, always make sure that the bit is securely held in place by trying to pull it out. pull the switch trigger. Do not force the tool. Light pressure gives best results. Keep the tool in position and prevent it from slipping away from the hole. Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the bit partially from the hole.
• • 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. Diamond core drilling When performing diamond core drilling operations, always set the change lever to the position to use "rotation only" action.
Makita Corporation 885072-4 8 www.makita.
