ENGLISH (Original instructions) SPECIFICATIONS Model 8406C Diamond core bit 152 mm Concrete Tungsten-carbide tipped bit 20 mm Capacities Steel 13 mm Wood 30 mm High 1,800 - 4,000 No load speed (min 900 - 2,000 High 28,800 - 64,000 Blows per minute...
Distractions can cause Makita Corporation responsible you to lose control. manufacturer declare that the following Makita Electrical safety machine(s): Power tool plugs must match the outlet. Never Designation of Machine: modify the plug in any way. Do not use any...
12. Use personal protective equipment. Always 23. Keep cutting tools sharp and clean. Properly wear eye protection. Protective equipment such maintained cutting tools with sharp cutting edges as dust mask, non-skid safety shoes, hard hat, or are less likely to bind and are easier to control. hearing protection used for appropriate conditions 24.
failure to follow the safety rules stated in this Speed adjusting dial instruction manual may cause serious personal injury. 1. Handle 2. Speed adjusting FUNCTIONAL DESCRIPTION dial CAUTION: Always be sure that the tool is switched off and • unplugged before adjusting or checking function on the tool.
Selecting the action mode Speed change lever 1. Action mode Speed adjusting dial 1 2 3 4 5 6 1 2 3 4 5 6 change lever Workpiece Type of bit Bit diameter 32 mm Diamond core 65 mm Concrete or 120 mm brick 8 mm...
depth. Then tighten the clamp screw to secure the depth Installing cover (Accessory) gauge. 1. Teeth OPERATION 2. Cover Diamond core drilling operation CAUTION: When performing diamond core drilling operations, • always set the change lever to the position to use "rotation only"...
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again. Water should run freely. But if the problem 1. Adhesive sheet persists, unplug the tool and replenish the bit with 2. Guide ring water immediately. When resuming operation, do not turn the tool on • until the bit end reaches the deepest portion of the hole.
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the rear side of the core bit to push the core material out. 1. Bit shank 2. Core bit 1. Small rod 3. Center bit 2. Core material 007609 Align the center bit with the center of the hole to be drilled. 007612 Turn the tool on and drill in the concrete until the diamond CAUTION:...
Always secure small workpieces in a vise or similar attachment for its stated purpose. • hold-down device. If you need any assistance for more details regarding these accessories, ask your local Makita Service Center. MAINTENANCE Tungsten-carbide tipped hammer bit • Diamond core bit (Dry type) •...
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Makita Corporation Anjo, Aichi, Japan www.makita.com 883852A228...