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Model Rotary Hammer
Modèle Marteau rotatif
DH 50SB
Modelo Martillo perforador
SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL
WARNING
IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily
injury!
This manual contains important information about product safety. Please read and
understand this manual BEFORE operating the power tool. Please keep this manual
available for other users and owners before they use the power tool. This manual should
be stored in safe place.
INSTRUCTI
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CONTENTS English Page Page IMPORTANT SAFETY INFORMATION ................ 3 ASSEMBLY AND OPERATION ............................... 10 MEANINGS OF SIGNAL WORDS ........................ 3 APPLICATIONS ................................................... 10 PRIOR TO OPERATION ....................................... 10 SAFETY ...................................................................... 4 HOW TO USE ...................................................... 11 GENERAL SAFETY RULES ...............
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English IMPORTANT SAFETY INFORMATION Read and understand all of the safety precautions, warnings and operating instructions in the Instruction Manual before operating or maintaining this power tool. Most accidents that result from power tool operation and maintenance are caused by the failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing appropriate safety procedures. Basic safety
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English SAFETY GENERAL SAFETY RULES 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 1. Work Area (1) Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents. (2) Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Power tools create sparks which may ignite the dus
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English (4) 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. (5) Do not overreach. Keep proper footing and balance at all times. Proper footing and balance enables better control of the tool in unexpected situations. (6) Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat, or hearing protection must be used for appropriate conditions. 4. Tool
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English SPECIFIC SAFETY RULES AND SYMBOLS 1. Hold tools by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will make exposed metal parts of the tool “live” and shock the operator. 2. ALWAYS wear ear protectors when using the tool for extended periods. Prolonged exposure to high intensity noise can cause hearing loss. 3. NEVER touch the tool bit with bare hands after operation. 4. NEVER wear glov
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English 15. Operate power tools at the rated voltage. Operate the power tool at voltages specified on its nameplate. If using the power tool at a higher voltage than the rated voltage, it will result in abnormally fast motor revolution and may damage the unit and the motor may burn out. 16. NEVER use a tool which is defective or operating abnormally. If the tool appears to be operating unusually, making strange noises, or otherwise appears defective, stop using it immediately and arrange for rep
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English DOUBLE INSULATION FOR SAFER OPERATION To ensure safer operation of this power tool, HITACHI has adopted a double insulation design. “Double insulation” means that two physically separated insulation systems have been used to insulate the electrically conductive materials connected to the power supply from the outer frame handled by the operator. Therefore, either the symbol “ ” or the words “Double insulation” appear on the power tool or on the nameplate. Although this system has no exte
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English FUNCTIONAL DESCRIPTION NOTE: The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool. NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual. Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool. NAME OF PARTS Switch trigger Bar type handle Tool holder
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English ASSEMBLY AND OPERATION APPLICATIONS Drilling anchor holes Drilling holes in concrete Crushing concrete, chipping, digging, and squaring (by applying optional accessories) PRIOR TO OPERATION 1. Power source Ensure that the power source to be utilized conforms to the power source requirements specified on the product nameplate. 2. Power switch Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while the switch is in the ON position, the power tool
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English 6. How to install dust cover (Fig. 2) Always install the dust cover on the drill bit or the taper shank adaptor. Insert the dust cover until it lies flush in the groove. Insert up to the NOTE: For a thick drill bit, insert the dust cover groove Dust cover from drill rear. Fig. 2 7. How to install tool CAUTION: For tools such as a bull point and a cold chisel, use only Hitachi genuine parts. (1) Clean, then smear the tool shank with the Front cover grease provided. (2) Slide the tool hold
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English 2. How to chip or crushing (1) Use the D type handle. (2) By applying the bull point tip to the chipping or crushing position, operate the rotary hammer by utilizing its own weight. Forcible pressing or thrusting is unnecessary. DRILLING AND DRIVING-IN OPERATIONS FOR ANCHORS Use the optional accessories for anchors, such Plug as anchor adapter and taper shank adapter. 1. When a rotation-striking anchor adapter is used. (1) Install the self-drilling anchor in the anchor Snap off this port
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English 2. How to use the drill bit (taper shank) and the taper shank adaptor. (1) Install drill bit with taper shank in the taper shank adaptor. (Fig. 10) (2) Turn the power on and drill a base hole. (3) After cleaning out dust with a syringe, attach the plug to the anchor tip and drive in the anchor with a manual hammer. (4) To remove the drill bit with taper shank, insert Fig. 9 a cotter into the slot of the taper shank adaptor, place supports under the Rotary Hammer and tap the cotter with a
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English (2) Mount the core bit shank on the main body in the same manner as in mounting the drill bit and the bull point. (Fig. 13) (3) Insert the center pin into the guide plate until it reaches the extremity. (4) Fit in the guide plate by aligning its concaved portion with the core bit tip. When the position of the concave is shifted by turning the guide plate right or left, the guide plate never slips off even when the rotary hammer is used in a Fig. 13 downward direction. (Fig. 14) Guide 2.
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English MAINTENANCE AND INSPECTION WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle during maintenance and inspection. 1. Inspecting the drill bits Since use of a dull tool will cause motor malfunctioning and degraded efficiency, replace the drill bit with a new one or resharpening without delay when abrasion is noted. 2. Inspecting the screws Regularly inspect all screws and ensure that they are properly tightened. Should any of the screws be loose, retighten the
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English Replacing carbon brushes: (For parts name, refer to Fig. 1) Loosen the set screw then remove the cap cover. Remove the brush cap and carbon brush. After replacing the carbon brush, do not forget to tighten the brush cap securely and to install the cap cover. 5. How to replace grease This machine is full air-tight construction to protect against dust and to prevent lubricant leakage. Therefore, the machine can be used without lubrication for long periods. Replace the grease as described
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English CAUTION: Repair, modification and inspection of Hitachi Power Tools must be carried out by a Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed. MODIFICATIONS: Hitachi Power Tools are constantly being improved and modified to incorpo
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English ACCESSORIES WARNING: ALWAYS use Only authorized HITACHI replacement parts and accessories. NEVER use replacement parts or accessories which are not intended for use with this tool. Contact HITACHI if you are not sure whether it is safe to use a particular replacement part or accessory with your tool. The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage. NOTE: Accessories are subject to change without any obligation on the part of the H
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English 2. Anchor hole drilling (Rotation + Hammering) (3) Cotter (1) Drill bit (2) Taper shank adaptor (Taper shank) (Spline shank) Taper shank adaptor formed A-taper A-taper or B-taper is provided as optional accessory, but drill bit for B-taper it is not provided 3. Large-dia. hole boring (Rotation + Hammering) (Guide plate) (1) Center pin (2) Core bit (3) Core bit shank (Spline shank) External dia. 2" (50 mm) 4-1/8" (105 mm) 5" (125 mm) 4. Crushing (Hammering) (1) Bull point Overall length
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English 6. Asphalt cutting (Hammering) (1) Cutter Overall length Width 1-1/2" (38 mm) 12" (300 mm) 2" (50 mm) 7. Digging (1) Scoop 8. Syringe (for chip removal) NOTE: Specifications are subject to change without any obligation on the part of the HITACHI. 20 01Eng_DH50SB_US 20 25/5/07, 17:00
