Model
Modèle
Modelo
DH 40FR
Rotary Hammer Marteau rotatif 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.
INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI
AVERTISSEMENT
Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner la mort ou de sérieuses blessures corporelles!
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de ce produit. Prière de lire et de comprendre ce mode d’emploi AVANT d’utiliser l’outil motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs et propriétaires avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi doit être conservé dans un endroit sûr.
INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES
ADVERTENCIA
¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede resultar en lesiones de gravedad o la muerte!
Este manual contiene información importante sobre la seguridad del producto. Lea y comprenda este manual ANTES de utilizar la herramienta eléctrica. Guarde este manual para que puedan leerlo otras personas antes de utilizar la herramienta eléctrica. Este manual debe ser guardado en un lugar seguro.
DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
CONTENTS
English
Page |
Page |
IMPORTANT SAFETY INFORMATION ................ |
3 |
MEANINGS OF SIGNAL WORDS ........................ |
3 |
SAFETY ...................................................................... |
4 |
GENERAL SAFETY RULES ................................... |
4 |
SPECIFIC SAFETY RULES AND SYMBOLS ......... |
6 |
DOUBLE INSULATION FOR SAFER |
|
OPERATION ................................................... |
8 |
FUNCTIONAL DESCRIPTION .................................... |
9 |
NAME OF PARTS .................................................. |
9 |
SPECIFICATIONS .................................................. |
9 |
ASSEMBLY AND OPERATION ............................... |
10 |
APPLICATIONS ................................................... |
10 |
PRIOR TO OPERATION ....................................... |
10 |
HOW TO USE ...................................................... |
12 |
HOW TO USE THE CORE BIT ............................. |
14 |
MAINTENANCE AND INSPECTION ....................... |
16 |
ACCESSORIES ......................................................... |
18 |
STANDARD ACCESSORIES ............................... |
18 |
OPTIONAL ACCESSORIES ................................. |
18 |
PARTS LIST .............................................................. |
58 |
TABLE DES MATIERES
Français
Page |
Page |
INFORMATIONS IMPORTANTES DE |
|
SÉCURITÉ ..................................................... |
21 |
SIGNIFICATION DES MOTS |
|
D’AVERTISSEMENT .................................... |
21 |
SECURITE ................................................................ |
22 |
REGLES GENERALE DE SECURITE ................... |
22 |
REGLES DE SECURITE SPECIFIQUES ET |
|
SYMBOLES .................................................. |
24 |
DOUBLE ISOLATION POUR UN |
|
FONCTIONNEMENT PLUS SUR ................. |
26 |
DESCRIPTION FONCTIONNELLE ........................... |
27 |
NOM DES PARTIES ............................................ |
27 |
SPECIFICATIONS ................................................ |
27 |
ASSEMBLAGE ET FONCTIONNEMENT ................ |
28 |
APPLICATIONS ................................................... |
28 |
AVANT L’UTILISATION ...................................... |
28 |
UTILISATION ....................................................... |
30 |
COMMENT UTILISER LA COURONNE .............. |
32 |
ENTRETIEN ET INSPECTION .................................. |
34 |
ACCESSOIRES ......................................................... |
36 |
ACCESSOIRES STANDARD ............................... |
36 |
ACCESSOIRES SUR OPTION ............................. |
36 |
LISTA DES PIÈCES .................................................. |
58 |
ÍNDICE
Español
Página |
Página |
INFORMACIÓN IMPORTANTE SOBRE |
|
SEGURIDAD ................................................. |
39 |
SIGNIFICADO DE LAS PALABRAS DE |
|
SEÑALIZACIÓN ............................................ |
39 |
SEGURIDAD ............................................................. |
40 |
NORMAS GENERALES DE SEGURIDAD ........... |
40 |
NORMAS Y SÍMBOLOS ESPECÍFICOS DE |
|
SEGURIDAD ................................................. |
42 |
AISLAMIENTO DOBLE PARA OFRECER |
|
UNA OPERACIÓN MÁS SEGURA .............. |
44 |
DESCRIPCIÓN FUNCIONAL .................................... |
45 |
NOMENCLATURA ............................................... |
45 |
ESPECIFICACIONES ............................................ |
45 |
MONTAJE Y OPERACIÓN ...................................... |
46 |
APLICACIONES ................................................... |
46 |
ANTES DE LA OPERACIÓN ................................ |
46 |
MODO DE UTILIZACIÓN .................................... |
48 |
MODO DE USAR LA BARRENA TUBULAR ....... |
51 |
MANTENIMIENTO E INSPECCIÓN ........................ |
53 |
ACCESORIOS ........................................................... |
55 |
ACCESORIOS ESTÁNDAR ................................. |
55 |
ACCESORIOS OPCIONALES .............................. |
55 |
LISTA DE PIEZAS .................................................... |
58 |
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 precautions are outlined in the “SAFETY” section of this Instruction Manual and in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by WARNINGS on the power tool and in this Instruction Manual.
NEVER use this power tool in a manner that has not been specifically recommended by HITACHI.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in death or serious injury.
CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may cause machine damage.
NOTE emphasizes essential information.
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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 dust of fumes.
(3)Keep bystanders children, and visitors away while operating a power tool.
Distractions can cause you to lose control.
2.Electrical Safety
(1)Double Insulated tools are equipped with a polarized plug (one blade is wider than the other.) This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified
electrician to install a polarized outlet. Do not change the plug in any way. Double Insulation 
eliminates the need for the three wire grounded power cord and grounded power supply system.
(2)Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is grounded.
(3)Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
(4)Do not abuse the cord. Never use the cord to carry the tools or pull the plug from a receptacle. Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged cords immediately. Damaged cords increase the risk of electric shock.
(5)When operating a power tool outside, use an outdoor extension cord marked “W- A” or “W”. These cords are rated for outdoor use and reduce the risk of electric shock.
3.Personal Safety
(1)Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tool while tires or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury.
(2)Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
(3)Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your finger on the switch or plugging in tools that have the switch on invites
accidents.
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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 Use and Care
(1)Use clamps or other practical way to secure and support the workpiece to a stable platform. Holding the work by hand or against your body is unstable and may lead to loss of control.
(2)Do not force tool. Use the correct tool for your application. The correct tool will do the job better and safer at the rate for which it is designed.
(3)Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.
(4)Disconnect the plug form the power source before making any adjustments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the tool accidentally.
(5)Store idle tools out of reach of children and other untrained persons. Tools are dangerous in the hands of untrained users.
(6)Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained tools, with sharp cutting edges are less likely to bind and are easier to control.
(7)Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool's operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools.
(8)Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool, may become hazardous when used with another tool.
5.Service
(1)Tool service must be performed only by qualified repair personnel. Service or maintenance performed by unqualified personnel could result in a risk of injury.
(2)When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unauthorized parts or failure to follow Maintenance Instruction may create a risk of electric shock or injury.
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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 gloves made from materials likely to roll up such as cotton, wool, cloth or string, etc.
5.ALWAYS attach the side handle and securely grip the Rotary Hammer.
6.NEVER touch moving parts.
NEVER place your hands, fingers or other body parts near the tool’s moving parts.
7.NEVER operate without all guards in place.
NEVER operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the tool.
8.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.
9.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.
10.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.
11.Keep all screws, bolts and covers tightly in place.
Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.
12.Do not use power tools if the plastic housing or handle is cracked.
Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be used until repaired.
13.Blades and accessories must be securely mounted to the tool.
Prevent potential injuries to youself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.
14.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.
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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 repairs by a Hitachi authorized service center.
17.NEVER leave tool running unattended. Turn power off.
Don’t leave tool until it comes to a complete stop.
18.Carefully handle power tools.
Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.
19.Do not wipe plastic parts with solvent.
Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may damage and crack plastic parts. Do not wipe them with such solvents.
Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry thoroughly.
20.ALWAYS wear eye protection that meets the requirement of the latest revision of ANSI
Standard Z87.1.
21.ALWAYS be careful with buried object such as an underground wiring. Touching live wiring or electric cable with this tool may result in electric shock. Confirm before use whether hidden objects are present, such as electric cables within the wall, floor or ceiling.
22.Definitions for symbols used on this tool
V ............ volts Hz .......... hertz
A ............ amperes
no .......... |
no load speed |
W ........... |
watt |
.......... |
Class II Construction |
---/min ... revolutions per minute
.......... Alternating current
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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 external grounding, you must still follow the normal electrical safety precautions given in this Instruction Manual, including not using the power tool in wet environments.
To keep the double insulation system effective, follow these precautions:
Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this power tool, and only genuine HITACHI replacement parts should be installed.
Clean the exterior of the power tool only with a soft cloth moistened with soapy water, and dry thoroughly.
Never use solvents, gasoline or thinners on plastic components; otherwise the plastic may dissolve.
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS
AND
OWNERS OF THIS TOOL!
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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
Stopper
Selector Lever Switch Trigger
Drill Bit
|
Side Handle |
|
Nameplate |
Tool Holder |
|
|
|
Housing |
|
|
|
|
|
Handle |
|
|
Tail Cover |
|
|
|
|
|
|
|
Set Screw |
|
Dial |
|
(Under the |
Brush Cap |
|
|
Tail Cover) |
|
|
|
(Inside the Tail Cover) |
||
|
|
||
|
Fig. 1 |
|
|
SPECIFICATIONS |
|
|
|
Motor |
Single-Phase, Series Commutator Motor. |
||
Power Source |
Single-Phase, 120 V 60 Hz |
|
|
Current |
9.2 A |
|
|
Capacity |
Drill Bit: 1-9/16" (40 mm) |
|
|
|
Core Bit: 4-1/8" (105 mm) |
|
|
No-Load Speed |
240 – 480/min |
|
|
Full-load Blow |
1320 – 2650/min |
|
|
Weight |
14.3 lbs (6.5 kg) |
|
|
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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 receptacle while the switch is in the ON position, the power tool will start operating immediately and can cause serious injury.
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 serious hazard.
5.Confirming condition of the environment:
Confirm that the work site is placed under appropriate conditions conforming to prescribed precautions.
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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.
NOTE: For a thick drill bit, insert the dust cover from drill rear.
7.How to install tool
CAUTION:
Dust cover Insert up to the groove
Fig. 2
For tools such as a drill bit and a bull point, use only Hitachi genuine parts.
(1)Clean, then smear the tool shank with the grease provided in the green tube.
(2)Pull the tool holder in the direction of arrow 1 and rotate it in the direction of arrow 2 (counterclockwise). Fully insert the tool shank into the hexagonal hole of the front cover. (Fig. 3)
(3)Return the tool holder to fix the tool.
(4)Pull the tool to make sure it is locked completely.
NOTE: Remove in the reverse order to installation.
8.Regulating the number of rotations and hammering (Fig. 4)
This Rotary Hammer is equipped with a builtin 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 holes into fragile materials, chipping, centering, etc.
The scale ‘1’ of the dial is designed for a minimum speed with the number of 240 rotations per minute and 1320 times of blow per minute. The scale ‘6’ is designed for a maximum speed with the number of 480 rotations per minute and 2650 times of blow per minute.
CAUTION:
Front Cover
2
Tool Shank Tool Holder 1
Fig. 3
Dial
Fig. 4
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.
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English
HOW TO USE
1. How to drill holes (Fig. 5)
(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. 5
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. 6)
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 unnecessary.
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 
of the selector lever and 
of the lever holder as illustrated in Fig. 7.
(c)Release the button to lock the selector lever.
Fig. 6
Lever Holder
Selector Lever
Button
Fig. 7
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.
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English
4. When chipping and shredding at “hammering”:
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.
(1)Switching to “hammering”
(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. 8.
(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.
5. Install the stopper (Fig. 9)
(1)Loosen the side handle and insert the straight portion of the stopper into the handle bolt 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.
6.Warming up (Fig. 10)
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 drill bit.
Selector Lever Lever Holder
Button
Fig. 8
Stopper
Side Handle
Fig. 9
Fig. 10
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English
7. 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. 11)
(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 a cotter into the slot of the taper shank adaptor, place supports under the Rotary Hammer and tap the cotter with a manual hammer. (Fig. 12)
HOW TO USE THE CORE BIT
Taper Shank Adaptor
Drill Bit (Taper shank)
Fig. 11
Taper Shank
Cotter Adaptor
Support
Fig. 12
When boring penetrating large hole use the core bit. At that time use with the center pin and the core bit shank provided as optional accessories.
1. Mounting
CAUTION:
Be sure to turn power OFF and disconnect the plug from the receptacle.
(1)Mount the core bit to the core bit shank. (Fig. 13)
Lubricate the thread of the core bit shank to facilitate disassembly.
(2)Mount the core bit shank to the Rotary Hammer. (Fig. 14)
(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. 15)
Core
|
Center Pin |
Plate |
Shank |
Core Bit |
Bit Tip |
|
Fig. 13 |
Fig. 14 |
Fig. 15 |
14
2. How to bore (Fig. 16)
(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 all over the surface of the core bit tip and start operating.
(3)When boring about 3/16" (5 mm) in depth the position of the hole will establish. Bore after that removing the center pin and the guide plate from core bit.
(4)Application of excessive force will not only expedite the work, but will deteriorate the tip edge of the drill bit, resulting in reduced service life of the rotary hammer.
CAUTION:
When removing the center pin and the guide plate, turn OFF the switch and disconnect the plug from the receptacle.
3.Dismounting (Fig. 17)
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 becomes loose and the core bit can be removed.
English
Fig. 16
Core Bit
Shank
Fig. 17
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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 them immediately.
WARNING: Using this Rotary Hammer with loosen screws is extremely dangerous.
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: (Fig. 18)
The motor employs carbon brushes which are consumable parts. When they become worn to or near “wear limit”, it could result in motor trouble. When an auto-stop carbon brush is equipped, the motor will stop automatically. At that time, replace both carbon brushes with new ones which have the same carbon brush Nos. shown in the figure. In addition, always keep carbon brushes clean and ensure that they slide freely within the brush holders.
CAUTION:
Using this Rotary Hammer with a carbon brush which is worn in excess of the wear limit will damage the motor.
Fig. 18
NOTE: Use HITACHI carbon brush No.73 indicated in Fig. 18
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English
Replacing carbon brushes: (For parts name, refer to Fig. 1)
Loosen the two set screws and remove the tail cover. Remove the brush caps and carbon brushes. After replacing the carbon brushes, tighten the brush caps securely and to install the tail cover with securely tightening two set screws.
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 the grease, turn the power off and pull out the power plug.
(1)Remove the crank cover and wipe off the grease inside.
(2)Apply 1.0 oz (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 lower viscosity type. When the supplied grease tube is consumed, purchase from a HITACHI Autorized Service Center.
Crank Cover
Fig. 19
6.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 performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.
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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 HITACHI.
STANDARD ACCESSORIES |
|
|
(1) |
Case (Molded plastic) (Code No. 322152) .......................................................................... |
1 |
(2) |
Side Handle (Code No. 313078) .......................................................................................... |
1 |
(3) |
Stopper (Code No. 971786) ................................................................................................. |
1 |
(4) |
Hammer Grease A (Code No. 981840) ............................................................................... |
1 |
(5) |
Dust Cover (Code No. 993245) ........................................................................................... |
1 |
OPTIONAL ACCESSORIES.....sold separately |
|
|
For accessories in detail please call HITACHI AT 1-800-59-TOOLS |
|
|
1.Through-hole drilling (Rotation + Hammering)
(1) Drill bit (Spline shank)
External dia. |
Overall length |
Code No. |
|
1" (25 mm) |
16"(400 mm) |
985375 |
|
1-1/2" (38 mm) |
985376 |
|
|
|
|
||
|
|
|
|
18
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