Hitachi DH 45MR Power Hammer User Manual
Contents
1. Core bit Core bit shank Fig 15 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 16 EL EL S27 Fig 16 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 drill is used in a downward direction Fig 17 Center pin Guide plate Core bit tip Fig 17 2 Drilling holes 1 Insert the plug into a receptacle 2 A spring is built in the center pin By straightly and gently pressing it to the wall or floor surface the entire surface of the core bit tip attains contact to start the hole drilling job Fig 18 Fig 18 3 When the hole depth reaches approximately 5 mm the hole position can be determined Then remove the center pin and guide plate from the core bit and continue the hole drilling job CAUTION When removing the center pin and guide plate always disconnect the plug from the receptacle 3 How to dismount the core bit By holding the rotary hammer with the core bit inserted in an upward position drive the rotary hammer to repeat impact operation two or three times whereby the screw is loosened and the rotary hammer becomes ready for disass2. holes into fragile materials chipping centering etc The scale 1 of the dial is designed for a minimum speed with the number of 120 rotations per minute and 1250 times of blow per minute The scale 6 is designed for a maximum speed with the number of 240 rotations per minute and 2500 times of blow per minute a Z e Fig 3 CAUTION Do not adjust the dial during operation Doing so can result in injury because the Rotary Hammer must be held by only one hand disabling the steady control of the Rotary Hammer RCD The use of a residual current device with a rated residual current of 30 mA or less at all times is recommended HOW TO USE THE ROTARY HAMMER 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 shavings 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 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 drill bit tip to the chiseling or crushing position operate the rotary hammer by utilizing its em
3. which could cause a serious accident 3 Extension cord When the work area is removed from the power Source use an extension cord of sufficient thickness and rated capacity The extension cord should be kept as short as practicable 4 How to install tool 1 NOTE For tools such as a bull point and a cold chisel use only Hitachi genuine parts Clean then smear the tool shank with the grease provided in the green tube Fig 1 Grease Tool shank Fig 1 2 To attach the tool SDS max shank insert it into the hole until it contacts the innermost end of the hole as illustrated in Fig 2 Front cap Part of Grip SDS max shank Fig 2 Tool 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 until it hits the innermost end Releasing the grip reverts the grip and secures the tool in place 3 Pull the tool to make sure it is locked completely 4 To remove the tool fully pull the grip in the direction 5 of the arrow and pull out the tool Regulating the number of rotations and hammering Fig 3 This Rotary Hammer is equipped with built in electronic control circuit that can adjust and regulate the number of rotations and times of hammering This Rotary Hammer can be used by adjusting the dial depending upon the contents of operation such as boring
4. 2 39 983 162 1 4 12 105 999 071 2 106 962 777 2 2 SEGUE 1 107 938 477 2 M5x8 42 311 229 1 108 324 946 1 43 324 934 1 109 984 508 2 5 20 44 873 095 1 16 110 321 313 2 6 22 45 321 310 1 111 937 623 2 46 321 311 1 112 321 322 1 47 321 312 1 113 985 436 1 48 939 540 1 114 620 0 1 6200VVCMPS2L 49 324 909 1 115 318 721 1 50 971 750 1 3X3x20 116 620 200 1 6202DDCMPS2L 51 948 391 1 117 980 700 1 52 620 3DD 1 6203DDCMPS2L 118 318 918 1 53 996 363 1 S 40 119 1 360 7370 1 110V 118 54 971 745 1 119 2 360 737E 1 230V 118 55 986 940 4 M6x45 2 te 1 240 118 56 994 192 8 M5x16 120 72351342 i aa 122 41 324 940 1 110V 58 324 912 1 59 61 63 71 5 59 944 109 1 3 8 122 2 324 941 1 120V du 324 913 1 122 3 324 939 1 230V 240V 123 317 113 1 61 321 279 1 501 324 820 1 62 313 050 1 502 981 840 1 306 63 600 206 1 6002DDCMPS2L 64 313 058 1 65 313 053 1 66 321 281 1 67 321 282 10 68 320 343 10 69 324 914 1 70 321 283 1 71 629 1 629VVC2PS2L 72 944 525 1 Hitachi Koki Co Ltd Shinagawa Intercity Tower A 15 1 Konan 2 chome Minato ku Tokyo Japan 101 Code No 99144811 Printed in Japan
5. 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 drill bit DRILLING AND DRIVING IN OPERATIONS FOR ANCHORS 1 When taper shank adapter is used Fig 12 Indicating groove shows standard depth matching the outside diameter of the anchor 272752 for drilling Taper shank adapter Drill bit taper shank 1 Install drill bit with taper shank in the taper shank adapter 2 Turn the power on and drill a base hole to the depth sounded by indicating groove on the drill bit 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 taper shank insert the cotter into the slot of the taper shank adapter and strike the head of the cotter with a manual hammer supporting on a rest Fig 13 Cotter Taper shank adapter lt il V Rest Fig 13 USING DRILL CHUCK CHUCK ADAPTER Note that this machine can be used at rotation only if separately sold parts such as drill chuck and chuck adapter are attached Use it with the selector lever positioned at rotation hammering CAUTION 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 rota
6. HITACHI Rotary Hammer MODEL DH 45MR HANDLING INSTRUCTIONS SS a 12257 EBPO w Note Before using this Power Tool carefully read through these HANDLING INSTRUCTIONS to ensure efficient safe operation It is recommended that these INSTRUCTIONS be kept readily portant reference available as an im when using this power tool n Hitachi Koki GENERAL POWER TOOL SAFETY WARNINGS WARNING Read all safety warnings and all instructions Failure to follow the warnings and instructions may result in electric shock fire and or serious injury Save all warnings and instructions for future reference The term power tool in the warnings refers to your mains operated corded power tool or battery operated cordless power tool 1 Work area safety 2 3 a b c Keep work area clean and well lit Cluttered or dark areas invite accidents 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 dust or fumes Keep children and bystanders away while operating a power tool Distractions can cause you to lose control Electrical safety a b c d e f Power tool plugs must match the outlet Never modify the plug in any way Do not use any adapter plugs with earthed grounded power tools Unmodified plugs and matching outlets will reduce risk of elect
7. Hammering 41 Drill bit Taper shank 3 Stopper 4 Hammer Grease A 1 9 Standard accessories are subject to change without 3 Cotter notice COW 1 Drill bit taper shank 2 Taper shank External dia 11 12 3 12 7 adapter 14 3 14 5 SDS max shank 17 5 mm 1 Case 2 Side Handle OPTIONAL ACCESSORIES sold separately 1 Through hole drilling Rotation Hammering ett Ss 1 Drill bit SDS max shank Taper shank adapter Application drill bit Morse taper No 1 Drill bit taper shank 11 12 3 12 7 14 3 14 5 17 5 mm Outer diameter mm Overall length mm Adapter for SDS plus shank bit 18 340 540 B 19 22 CO t 320 520 TEM 25 1 Drill bit 2 Adapter for SDS plus 28 SDS plus shank shank bit 25 SDS shank 38 370 570 3 Large dia hole boring Rotation Hammering 20 o OD ed Guide 1 Center 2 Core 3 Core bit plate pin bit shank 1 Center pin Applied to core bits from 38 mm to 125 mm Applied to core bits 32 mm and 35 mm 10 NOTE Do not use core bits 25 mm or 29 mm Core bit External dia 25 29 32 35 38 45 54 64 79 94 105 120 125 mm with guide plate not applicable to cores 25 mm or 29 mm Core bit shank Applied to core bits above 38 mm Applied to core bits below 35 mm Drilling holes For drilling metal and
8. any adjustments changing accessories or storing power tools Such preventive safety measures reduce the risk of starting the power tool accidentally Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool Power tools are dangerous in the hands of untrained users Maintain power tools Check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the power tool s operation If damaged have the power tool repaired before use Many accidents are caused by poorly maintained power tools Keep cutting tools sharp and clean Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control Use the power tool accessories and tool bits etc in accordance with these instructions taking into account the working conditions and the work to be performed Use of the power tool for operations different from those intended could result in a hazardous situation Service a Have your power tool serviced by a qualified repair person using only identical replacement parts This will ensure that the safety of the power tool is maintained PRECAUTION Keep children and infirm persons away When notin use tools shouldbe stored out of reach of children and infirm persons ROTARY HAMMER SAFETY WARNINGS 1 Wear ear protectors Exposure to no
9. corporate the latest technological advancements Accordingly some parts i e code numbers and or design may be changed without prior notice NOTE Due HITACHI s continuing program of research and development the specifications herein are subject to change without prior notice Q i A 9 9 A B C D A B C D 1 321 306 1 73 325 230 1 2 321 305 1 74 324 944 1 3 318 590 1 75 324 947 1 5 321308 1 75 77 324 938 1 6 321 302 1 78 313 078 1 7 981 942 4 M6x25 79 313 079 1 8 321 300 1 80 980 673 2 M5x40 9 956 996 3 1 5 60 81 313 093 1 10 321 301 1 82 938 307 1 11 325 229 1 83 324 948 1 12 315 868 1 84 301 653 2 D4x20 13 948 131 1 85 981 373 2 14 600 7DD 1 6007DDUAV2S 86 1 980 063 1 15 321 297 1 86 2 930 804 1 GBR 110V 16 313 421 2 D8x20 87 1 960 266 1 17 324 919 1 87 2 981 9877 1 SUI 18 j 88 984 750 2 D4x16 3 89 1 953 327 1 D8 8 2 351423 1 89 2 938 051 1 D10 1 90 1 22 324 924 1 23 313 057 4 D6x6 A 319080 1 26 REUS 1 93 998 471 1 5 12 5 94 324 936 1 26 324 931 1 95 1 27 324 927 1 a agas E E 29 324 926 98 324 911 1 30 325 297 2 1 0 27 2 339 299 1 MESI 31 324 929 1 P 32 324 917 1 100 961 501 2 D5x60 33 324 915 1 101 1 340 646C 1 110V 111 34 324 916 1 101 2 340 646E 1 230V 111 35 324 932 1 101 3 340 646F 1 240V 111 81012131 MER 108 324443 1 106 107 7 24 9 1 2 4 35000 1 104 945 161
10. ed in Fig 7 Lever holder Selector lever Fig 7 c Release the button to lock the selector lever NOTE Turn the selector lever do not push the button to check if it is completely locked and make sure that it does not turn Button 2 When fixing working positions of tools such as cold chisel etc a Push the button release lock and turn the selector lever Align amp of the selector lever and of the lever holder as illustrated in Fig 8 Button Lever holder AME Selector lever Fig 8 b Release the button to lock the selector lever c Turn the grip as illustrated in Fig 9 and fix the tool to the desired working direction Grip Fig 9 d Switch the selector lever to hammering according to the procedures mentioned in the above item 1 and secure the position of the tool Install the stopper Fig 10 1 Loosen the side handle and insert the straight portion of the stopper into the handle bolt hole 2 Move the stopper to the specified position and rotate the grip of the side handle clockwise to fix the stopper Stopper Side handle Fig 10 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 Fig 11
11. embly Fig 19 Core bit Core bit shank Fig 19 Remove the core bit shank from the rotary hammer hold the core bit with one hand and strongly strik the head of the SDS max shank portion of the core bit shank with a manual hammer two or three times whereby the round head screw is loosened and the rotary hammer is ready for disassembly Fig 20 Core bit shank Core bit Fig 20 HOW TO REPLACE GREASE This machine is of 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 1 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 2 Grease replenishment CAUTION Before replenishing the grease turn the power off and pull out the power plug 1 Remove the crank cover and wipe off the grease inside Fig 21 Crank cover 2 Supply 30 g of Hitachi Electric Hammer Grease A Standard accessory contained in tube to the crank case 3 After replenishing the grease install the crank cover securely NOTE The Hitachi Electric Hammer Grease A is of the low viscosity type If necessary purchase from an Hitachi Authorized Service Center MAINTENANCE AND INSPECTION 1 Inspecting the tool Since use of a dull tool wi
12. is in the off position before connecting to power source and or battery pack picking up or carrying the tool 4 5 d e f 9 Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents Remove any adjusting key or wrench before turning the power tool on A wrench or a key left attached to a rotating part of the power tool may result in personal injury Do not overreach Keep proper footing and balance at all times This enables better control of the power tool in unexpected situations Dress properly Do not wear loose clothing or jewellery Keep your hair clothing and gloves away from moving parts Loose clothes jewellery or long hair can be caught in moving parts If devices are provided for the connection of dust extraction and collection facilities ensure these are connected and properly used Use of dust collection can reduce dust related hazards Power tool use and care a b c d e f 9 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 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 Disconnect the plug from the power source and or the battery pack from the power tool before making
13. ise can cause hearing loss Do not touch the bit during or immediately after operation The bit becomes very hot during operation and could cause serious burns Before starting to break chip or drill into a wall 2 Use auciliary handle s if supplied with the tool floor or ceiling thoroughly confirm that such items Loss of control can cause personal injury as electric cables or conduits are not buried inside 3 Hold power tool by insulated gripping surfaces Always hold the body handle and side handle of when performing an operation where the cutting the power tool firmly Otherwise the counterforce accessory may contact hidden wiring or its own produced may result in inaccurate and even cord dangerous operation Cutting accessory contacting a live wire may make Wear a dust mask 1 exposed metal parts of the power tool live and Do not inhale the harmful dusts generated in could give the operator an electric shock drilling or chiseling operation The dust can endanger the health of yourself and bystanders SPECIFICATIONS 110V 115V 120V 127V 220V 230V 240V 1200 W Voltage by areas Power input Capacity Drill bit 45 mm Core bit 125 mm No load speed 120 240 min Full load impact rate 1250 2500 min Weight without cord side handle 8 0 kg Be sure to check the nameplate on product as it is subject to change by areas STANDARD ACCESSORIES 2 Anchor hole drilling Rotation
14. ll degrade efficiency and cause possible motor malfunction sharpen or replace the tool as soon as 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 loose retighten them immediately Failure to do so could result in serious hazard 3 Maintenance of the motor The motor unit winding is the very heart of the power tool Exercise due care to ensure the winding does not become damaged and or wet with oil or water 4 Inspecting the carbon brushes For your continued safety and electrical shock protection carbon brush inspection and replacement on this tool should ONLY be performed by a HITACHI Authorized Service Center 5 Replacing supply cord If the supply cord of Tool is damaged the Tool must be returned to Hitachi Authorized Service Center for the cord to be replaced 6 Service parts list A Item No B Code No C No Used D Remarks 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 MODIFICATION Hitachi Power Tools are constantly being improved and modified to in
15. pty weight Forcible pressing or thrusting is unnecessary Fig 5 3 When drilling at rotation hammering CAUTION If you switch the selector lever during motor rotation the tool can start to rotate abruptly resulting in unexpected accidents Be sure to switch the selector lever when the motor is at a complete stop 1 Switching to rotation hammering a Push the button release lock and turn the selector lever clockwise b Align A of the selector lever and tT of the lever holder as illustrated in Fig 6 4 Lever holder Selector lever Fig 6 c Release the button to lock the selector lever NOTE Turn the selector lever do not push the button to check if it is completely locked and make sure that it does not turn When chipping and chiseling at hammering Button CAUTION If the selector lever is switched during motor rotation the tool can start to rotate abruptly resulting in unexpected accidents Make sure to switch the selector lever when the motor is at a complete stop If the bull point or cold chisel is used at the position of rotation hammering the tool can start to rotate resulting in unexpected accidents Make sure that they are used at the position of hammering 1 Switching to hammering a Push the button release lock and turn the selector lever counterclockwise b Align amp of the selector lever and of the lever holder as illustrat
16. ric shock Avoid body contact with earthed or grounded surfaces such as pipes radiators ranges and refrigerators There is an increased risk of electric shock if your body is earthed or grounded Do not expose power tools to rain or wet conditions Water entering a power tool will increase the risk of electric shock Do not abuse the cord Never use the cord for carrying pulling or unplugging the power tool Keep cord away from heat oil sharp edges or moving parts Damaged or entangled cords increase the risk of electric shock When operating a power tool outdoors use an extension cord suitable for outdoor use Use of a cord suitable for outdoor use reduces the risk of electric shock If operating a power tool in a damp location is unavoidable use a residual current device RCD protected supply Use of an RCD reduces the risk of electric shock Personal safety a b c Stay alert watch what you are doing and use common sense when operating a power tool Do not use a power tool while you are tired or under the influence of drugs alcohol or medication A moment of inattention while operating power tools may result in serious personal injury Use personal protective equipment Always wear eye protection Protective equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropriate conditions will reduce personal injuries Prevent unintentional starting Ensure the switch
17. tion hammering follow the same procedures mentioned in 3 When drilling at rotation hammering 2 Attaching chuck adapter to drill chuck Fig 14 English a Attach the chuck adapter to the drill chuck b The SDS max shank of the chuck adapter is equivalent to the drill bit Therefore follow the same procedure as How to install tool for attaching and detaching Front cap Drill chuck Part of SDS Chuck adapter shank Fig 14 3 Drilling a Even if you apply more than required pressure to the machine body drilling can never be performed as quickly as you expect Applying more force or pressure to the machine body than what is needed on the contrary damages the drill tip resulting in the declined working efficiency and shortened life of this machine b A drill can snap sometimes when drilling is almost finished It is important to relax your thrusting pressure when drilling is nearing the end HOW TO HANDLE A CORE BIT When a core bit is used large diameter holes and blind holes can be drilled In this case use optional accessories for core bits such as a center pin and core bit shank for more efficient operation 1 Mounting CAUTION Prior to mounting a core bit always disconnect the plug from the power supply receptacle 1 Mount the core bit on the core bit shank Fig 15 Before that feed oil to the screw portion of core bit shank for easy dismounting
18. wooden materials 13 mm drill chuck 13VLA 1 Chuck wrench Chuck adapter SDS max shank Bolt placing operation with Chemical Anchor Rotation Hammering mE Standard socket SDS max shank on the market 12 7 mm Chemical Anchor Adaptor 19 mm Chemical Anchor Adaptor Crushing Hammering amp 1 Bull point Overall length 280 400 mm Groove digging and edging Hammering 1 Cold chisel Overall length 280 400 mm Asphalt cutting Hammering O 1 Cutter Scooping Work Hammering C3 1 Scoop Surface Roughing Hammering 2 Shank 1 Bushing Tool 11 12 Tamping Hammering 0 CoO 1 Rammer 2 Shank 150 x 150 mm Syringe for chip removal 00 Hammer grease A 500 g in a can 70 g in a green tube 30 g in a green tube Optional accessories are subject to change without notice APPLICATIONS O Drilling holes in concrete O Drilling anchor holes O 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 requirements specified on the product nameplate 2 Power switch Ensure that the power switch is in the OFF position If the plug is connected to a power receptacle while the power switch is in the ON position the power tool will start operating immediately
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