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English
MODEL ROTARY HAMMER
MODELE MARTEAU ROTATIF
DH 38YE
MODELO MARTILLO GIRATORIO
INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS
WARNING
Improper and 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 others before they use the power tool.
MODE D’EMPLOI ET INSTRUCTIONS DE SECURITE
AVERTISSEMENT
Une u
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English CONTENTS English Page Page OPERATION AND MAINTENANCE IMPORTANT INFORMATION ............. 3 NAME OF PARTS .............................. 10 MEANINGS OF SIGNAL WORDS ...... 3 SPECIFICATIONS .............................. 10 ACCESSORIES .................................. 11 SAFETY STANDARD ACCESSORIES ......... 11 IMPORTANT SAFETY INSTRUCTIONS OPTIONAL ACCESSORIES ........... 11 FOR USING ALL POWER TOOLS .................. 4 APPLICATIONS ................................. 13 PRIOR TO OPERATI
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English IMPORTANT INFORMATION Read and understand all of the operating instructions, safety precautions and warnings 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 precau
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English SAFETY INPORTANT SAFETY INSTRUCTIONS FOR USING ALL POWER TOOLSaaaa WARNING: Death or serious bodily injury could result from improper or unsafe use of power tools. To avoid these risks, follow these basic safety instruc- tions: READ ALL INSTRUCTIONS 1. NEVER TOUCH MOVING PARTS. Never place your hands, fingers or other body parts near the tool’s moving parts. 2. NEVER OPERATE WITHOUT ALL GUARDS IN PLACE. Never operate this tool without all guards or safety features in place and in proper
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English 10. KEEP CHILDREN AWAY. Do not let visitors contact tool or extension cord. All visitors should be kept safely away from work area. 11. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it was intended. 12. USE RIGHT TOOL. Don’t force small tool or attachment to do the job of a heavy-duty tool. Don’t use tool for purpose not intended —for example— don’t use circular saw for cutting tree limbs or logs. 13. DRESS PROPERLY. Do not wear loose clothing or jewelry. Th
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English 23. NEVER USE A POWER TOOL FOR APPLICATIONS OTHER THAN THOSE SPECIFIED. Never use a power tool for applications other than those specified in the Instruction Manual. 24. HANDLE TOOL CORRECTLY. Operate the tool according to the instructions provided herein. Do not drop or throw the tool. Never allow the tool to be operated by children, individuals unfamiliar with its operation or unauthorized personnel. 25. CHECK FOR LIVE WIRES. Avoid the risk of severe electrical shock by checking for li
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English IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE ROTARY HAMMERL WARNING: Death or serious bodily injury could result from improper or unsafe use of the demolition hammer. To avoid these risks, follow these basic safety instructions: 1. NEVER touch the tool bit with bare hands after operation. 2. NEVER wear gloves made of stuff liable to roll up such as cotton, wool, cloth or string, etc. 3. ALWAYS attach the side handle and securely grip the Rotary Hammer. 4. ALWAYS wear eye and ear protecto
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English USE OF 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 loss of power and overheating. Table shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord. MINIMUM GAGE FOR CORD SETS Total
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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 and “Double insulation” appear on the power tool or on the nameplate. Although this system has no
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English OPERATION AND MAINTENANCE NOTE: The information contained in this Instruction Manual is designed to assist you in the safe operation and maintenance of the power tool. 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 Side handle Selector lever Housing Tool holder Nameplate Set screw Cap cover Brush cap (Under the cap cover) Fig. 1 SPECIFICATIONS Motor Single-Phase, Series Commutator Mo
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11
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12
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English APPLICATIONS Rotation and hammering function Drilling anchor holes Drilling holes in concrete Hammering function only 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 i
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English 3. Extension cord When the work area is far away from the power source, use an extension cord of sufficient thickness and rated capacity. The extension cord should be kept as short as practicable. WARNING: Damaged cord must be replaced or repaired. 4. Check the receptacle If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact a licensed electrician to make appropriate repairs. If such a fautly receptacle is used, it may cause overheating, resulting in a
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English HOW TO USE 1. How to drill holes (Fig. 4) (1) Pull the switch trigger after applying the drill bit tip to the drilling position. (2) It is unnecessary to forcibly press the rotary hammer main body. It is sufficient to slightly press the rotary hammer to an extent that clips are freely discharged. Fig. 4 CAUTION: Although this machine is equipped with a safety clutch, if the drill bit becomes bound in concrete or other material, the resultant stoppage of the drill bit could cause the mach
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English 4. How to use stopper (1) Install the stopper (Fig. 7) 1 Loosen the side handle and insert the straight portion of the stopper into the handle bolt Stopper hole from the front cover. 2 Loosen the side handle, move the stopper to the specified position and rotate the grip of the side handle clockwise to fix the stopper. Side Handle 5. How to use the drill bit (taper shank) and Fig. 7 the taper shank adaptor. (1) Install drill bit with taper shank in the taper shank adaptor. Taper Shank Ad
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English HOW TO USE THE CORE BIT When boring penetrating large hole use the core Core Bit bit. At that time use with the center pin and the core bit shank provided as optional accessories. 1. Mounting Core Bit Shank CAUTION: Be sure to turn power OFF and disconnect the plug from the receptacle. Fig. 10 (1) Mount the core bit to the core bit shank. (Fig. 10) Lubricate the thread of the core bit shank to facilitate disassembly. (2) Mount the core bit shank to the rotary hammer. (Fig. 11) (3) Inse
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English 3. Dismounting (Fig. 14) Remove the core bit shank from the rotary hammer and strike the head of the core bit shank strongly two or three times with a manual hammer holding the core bit, then the thread Core Bit Shank becomes loose and the core bit can be removed. HOW TO REPLASE GREASE Fig. 14 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
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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 mounting screws Regularly inspect all mounting screws and ensure that they are properly tightened. Should any of the screws be lo
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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. SERVICE AND REPAIRS All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be p
