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Model Rotary Hammer
Modèle Marteau rotatif
DH 45MR
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
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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 all instructions Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term “power tool” in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. SAVE THESE INSTRUCTIONS 1) Work area safety a) Keep work area clean and well lit. Cluttered or dark areas invite accidents. b) Do not operate power tools in explosive atmospher
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English b) Use safety equipment. Always wear eye protection. Safety equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. c) Avoid accidental starting. Ensure the switch is in the off position before plugging in. Carrying power tools with your finger on the switch or plugging in power tools that have the switch on invites accidents. d) Remove any adjusting key or wrench before turning the power tool on.
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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. Exposure to noise can cause hearing loss. 3. Use auxiliary handles supplied with the tool. Loss of control can cause personal injury. 4. NEVER touch the tool bit with bare hands after ope
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English 15. Keep motor air vent clean. The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check for dust build-up frequently. 16. 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. 17. NEVER use a tool which is defective or operating abnor
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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 safey 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 Selector Lever Stopper Drill
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English ASSEMBLY AND OPERATION 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 receptacl
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English (1) Clean, then smear the tool shank with the grease provided in the green tube. (2) To attach the tool (SDS max shank), insert it into the hole until it contacts the innermost end Front Cap of the hole as illustrated in Fig. 2. If you continue to turn the tool with slight pressure, you can feel a spot where there is a hitch. At that spot, pull the grip to the direction of an arrow mark and insert the tool all the way Shank Grip until it hits the innermost end. Tool Releasing the grip re
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English 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 machine body to turn in reaction. Ensure that the main handle and side handle are gripped firmly during operation. 2. How to chisel or crush (Fig. 5) By applying the tool tip to the chiseling or crushing position, operate the rotary hammer by utilizing its empty weight. Forcible pressing or thrusting is unne
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English (1) Switching to “hammering” Lever Holder (a) Push the button, release lock and turn the selector lever counterclockwise. (b) Align ▲ of the selector lever and of the lever holder as illustrated in Fig. 7. (c) Release the button to lock the selector lever. NOTE: Turn the selector lever (do not push the button) Button Selector Lever to check if it is completely locked and make sure that it does not turn. Fig. 7 (2) When fixing working positions of tools such as cold chisel, etc., (a) Pus
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English 6. Warming up (Fig. 11) The grease lubrication system in this unit may require warming up in cold regions. Position the end of the bit so makes contact with the concrete, turn on the switch and perform the warming up operation. Make sure that a hitting sound is produced and then use the unit. CAUTION: When the warming up operation is performed, hold the side handle and the main body securely with both hands to maintain a secure grip and be careful not to twist your body by the jammed dri
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English USING DRILL CHUCK, CHUCK ADAPTOR Note that this machine can be used at “rotation only” if separately sold parts such as drill chuck and chuck adaptor are attached. Use it with the selector lever positioned at “rotation + hammering”. WARNING: During operation, be sure to grip the handle and the side handle firmly to prevent your body from swaying. (1) Switching to “rotation + hammering” For switching to “rotation + hammering”, follow the same procedures mentioned in [3. When drilling at “
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English (2) Mount the core bit shank to the Rotary Hammer. (Fig. 16) (3) Insert the center pin into the guide plate until it stops. (4) Engage the guide plate with the core bit, and turn the guide plate to left or right so that it does not fall even if it faces downward. (Fig. 17) Fig. 16 2. How to bore (Fig. 18) (1) Connect the plug to the receptacle. (2) A spring is installed in the center pin. Push it lightly to the wall or the floor straight. Connect Guide Plate all over the surface of the c
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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 5. How to replase 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 below. Grease replacement period After purchase, replace grease after every 6 months of usage. Ask for grease replacement at the nearest HITACHI Authorized Service Center. Proceed for replacement of grease. Grease replenishment CAUTION: Before replenishing
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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 External dia. Overall lenght Code No. 13-3/8" (340 mm) 313448 5/8" (16 mm) 21-1/4" (540 mm) 313456 13-3/8" (340 mm) 313449 3/4" (19 mm) 21-1/4" (540 mm) 313457 12-5/8" (320 mm) 313450 7/8" (22 mm) 20-15/32" (520 mm) 313458 12-5/8" (320 mm) 313451 1" (25 mm) 20-15/32" (520 mm) 313459 14-9/16" (370 mm) 313452 1-1/8" (28 mm) 22-7/16" (570 mm) 313460 14-9/16" (370 mm) 313453 1-1/4" (32 mm) 22-7/16" (570 mm) 313461 14-9/16" (370 mm) 313454 1-1/2" (38 mm) 22-7/16" (570 mm) 313462 14-9/16" (370
