HiKOKI DH 12DD Cordless Hammer Drill Instruction Manual

DH 12DD
Handling instructions

DH 12DD Cordless Hammer Drill

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, fi re and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mainsoperated (corded) power tool or battery-operated (cordless) power tool.

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 atmospheres, such as in the presence of flammable liquids, gases or dust.
   Power tools create sparks which may ignite the dust or fumes.
   c) Keep children and bystanders away while operating a power tool.
   Distractions can cause you to lose control.

2. Electrical safety
   a) 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.
   Unmodifi ed plugs and matching outlets will reduce risk of electric shock.
   b) 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.
   c) Do not expose power tools to rain or wet conditions.
   Water entering a power tool will increase the risk of electric shock.
   d) 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.
   e) 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.
   f) 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.

3. Personal safety
   a) 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 infl uence of drugs, alcohol or medication.
   A moment of inattention while operating power tools may result in serious personal injury.
   b) 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.
   c) Prevent unintentional starting. Ensure the switch is in the off position before connecting to power source and/or battery pack, picking up or carrying the tool.
   Carrying power tools with your fi nger on the switch or energising power tools that have the switch on invites accidents.
   d) 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.
   e) Do not overreach. Keep proper footing and balance at all times.
   This enables better control of the power tool in unexpected situations.
   f) 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.
   g) 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.

4. Power tool use and care
   a) 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.
   b) 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.
   c) Disconnect the plug from the power source and/ or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
   Such preventive safety measures reduce the risk of starting the power tool accidentally.
   d) 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.
   e) Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power toolʼs operation.
   If damaged, have the power tool repaired before use.
   Many accidents are caused by poorly maintained power tools.
   f) Keep cutting tools sharp and clean.
   Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
   g) 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 diff erent from those intended could result in a hazardous situation.

5. Battery tool use and care
   a) Recharge only with the charger specifi ed by the manufacturer.
   A charger that is suitable for one type of battery pack may create a risk of fi re when used with another battery pack.
   b) Use power tools only with specifi cally designated battery packs.
   Use of any other battery packs may create a risk of injury and fire.
   c) When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another.
   Shorting the battery terminals together may cause burns or a fi re.
   d) Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, fl ush with water. If liquid contacts eyes, additionally seek medical help.
   Liquid ejected from the battery may cause irritation or burns.

6. Service
   a) Have your power tool serviced by a qualifi ed repair person using only identical replacement parts.
   This will ensure that the safety of the power tool is maintained.

PRECAUTION
Keep children and infi rm persons away.
When not in use, tools should be stored out of reach of children and infi rm persons.

CORDLESS ROTARY HAMMER SAFETY WARNINGS

1. Wear ear protectors
   Exposure to noise can cause hearing loss.

2. Use auxiliary handle(s), if supplied with the tool.
   Loss of control can cause personal injury.

3. Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring.
   Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

ADDITIONAL SAFETY WARNINGS

1. Do not allow foreign matter to enter the hole for connecting the rechargeable battery.

2. Never disassemble the rechargeable battery and charger.

3. Never short-circuit the rechargeable battery.
   Shortcircuiting the battery will cause a great electric current and overheat. It results in burn or damage to the battery.

4. Do not dispose of the battery in fi re. If the battery is burnt, it may explode.

5. When using this unit continuously, the unit may overheat, leading to damage in the motor and switch. Please leave it without using it for approximately 15 minutes.

6. Do not insert object into the air ventilation slots of the charger. Inserting metal objects or infl ammables into the charger air ventilation slots will result in electrical shock hazard or damaged charger.

7. Bring the battery to the shop from which it was purchased as soon as the post-charging battery life becomes too short for practical use. Do not dispose of the exhausted battery.

8. Before starting to break, chip or drill into a wall, fl oor or ceiling, thoroughly confi rm that such items as electric cables or conduits are not buried inside.

9. Ensure that the power switch is in the OFF position. If the battery is installed while the power switch is in the ON position, the power tool will start operating immediately, which could cause a serious accident.

10. Do not touch the bit during or immediately after operation. The bit becomes very hot during operation and could cause serious burns.

11. Always hold the body handle and side handle of the power tool fi rmly. Otherwise the counterforce produced may result in inaccurate and even dangerous operation.

12. Wear a dust mask
    Do not inhale the harmful dusts generated in drilling or chiseling operation. The dust can endanger the health of yourself and bystanders.

13. Make sure that the battery is installed firmly. If it is at all loose it could come off and cause an accident.

14. To prevent accidents, make sure to turn the switch off and pull out the battery before changing accessories, storing, carrying or when not using the tools.

15. Mounting the drill bit
    ○ To prevent accidents, make sure to turn the switch off and pull out the battery.
    ○ When using tools such as bull points, drill bits, etc., make sure to use the genuine parts designated by our company.
    ○ Clean the shank portion of the drill bit.
    ○ Check the latching by pulling on the drill bit.

16. Operate the change lever only when the motor is at a full stop. Operating the change lever while the motor is running may cause the tip tool to unexpectedly rotate and result in an accident. (Fig. 10)

17. Rotation + hammering
    When the drill bit touches construction iron bar, the bit will stop immediately and the rotary hammer will react to revolve. Therefore fi rmly tighten the side handle, hold
    the body handle and side handles.

18. Rotation only
    ○ To drill wood or metal material using the drill chuck and chuck adapter (optional accessories).
    ○ Application of force more than necessary will not only expedite the work, but will deteriorate the tip edge of the drill bit and reduce the service life of the rotary hammer in addition.
    ○ Drill bits may snap off while withdrawing the rotary hammer from the drilled hole. For withdrawing, it is important to use a pushing motion.
    ○ Do not attempt to drill anchor holes or holes in concrete with the machine set in the rotation only function.
    ○ Do not attempt to use the rotary hammer in the rotation and striking mode with the drill chuck and chuck adapter attached. This would seriously shorten the service life of every component of the machine.

19. Do not look directly into the light. Such actions could result in eye injury.
    Wipe off any dirt or grime attached to the lens of the LED light with a soft cloth, being careful not to scratch the lens.
    Scratches on the lens of the LED light can result in decreased brightness.

CAUTION ON LITHIUM-ION BATTERY
To extend the lifetime, the lithium-ion battery equips with the protection function to stop the output.
In the cases of 1 to 3 described below, when using this product, even if you are pulling the switch, the motor may stop. This is not the trouble but the result of protection function.

1. When the battery power remaining runs out, the motor stops.
   In such a case, charge it up immediately.

2. If the tool is overloaded, the motor may stop. In this case, release the switch of tool and eliminate causes of overloading. After that, you can use it again.

3. If the battery is overheated under overload work, the battery power may stop.
   In this case, stop using the battery and let the battery cool. After that, you can use it again.
   Furthermore, please heed the following warning and caution.

WARNING
In order to prevent any battery leakage, heat generation, smoke emission, explosion and ignition beforehand, please be sure to heed the following precautions.

1. Make sure that swarf and dust do not collect on the battery.
   ○ During work make sure that swarf and dust do not fall on the battery.
   ○ Make sure that any swarf and dust falling on the power tool during work do not collect on the battery.
   ○ Do not store an unused battery in a location exposed to swarf and dust.
   ○ Before storing a battery, remove any swarf and dust that may adhere to it and do not store it together with metal parts (screws, nails, etc.).

2. Do not pierce battery with a sharp object such as a nail, strike with a hammer, step on, throw or subject the battery to severe physical shock.

3. Do not use an apparently damaged or deformed battery.

4. Do not use the battery in reverse polarity.

5. Do not connect directly to an electrical outlets or car cigarette lighter sockets.

6. Do not use the battery for a purpose other than those specified.

7. If the battery charging fails to complete even when a specifi ed recharging time has elapsed, immediately stop further recharging.

8. Do not put or subject the battery to high temperatures or high pressure such as into a microwave oven, dryer, or high pressure container.

9. Keep away from fi re immediately when leakage or foul odor are detected.

10. Do not use in a location where strong static electricity generates.

11. If there is battery leakage, foul odor, heat generated, discolored or deformed, or in any way appears abnormal during use, recharging or storage, immediately remove it from the equipment or battery charger, and stop use.

12. Do not immerse the battery or allow any fluids to flow inside. Conductive liquid ingress, such as water, can cause damage resulting in fi re or explosion. Store your battery in a cool, dry place, away from combustible and flammable items. Corrosive gas atmospheres must be avoided.

CAUTION

1. If liquid leaking from the battery gets into your eyes, do not rub your eyes and wash them well with fresh clean water such as tap water and contact a doctor immediately.
   If left untreated, the liquid may cause eye-problems.

2. If liquid leaks onto your skin or clothes, wash well with clean water such as tap water immediately.
   There is a possibility that this can cause skin irritation.

3. If you fi nd rust, foul odor, overheating, discolor, deformation, and/or other irregularities when using the battery for the fi rst time, do not use and return it to your supplier or vendor.

WARNING
If a conductive foreign matter enters in the terminal of lithium ion battery, the battery may be shorted, causing fi re. When storing the lithium ion battery, obey surely the rules of following contents.
○ Do not place conductive debris, nail and wires such as iron wire and copper wire in the storage case.
○ To prevent shorting from occurring, load the battery in the tool or insert securely the battery cover for storing until the ventilator is not seen.

REGARDING LITHIUM-ION BATTERY TRANSPORTATION
When transporting a lithium-ion battery, please observe the following precautions.
WARNING
Notify the transporting company that a package contains a lithium-ion battery, inform the company of its power output and follow the instructions of the transportation company when arranging transport.
○ Lithium-ion batteries that exceed a power output of 100 Wh are considered to be in the freight classifi cation of Dangerous Goods and will require special application procedures.
○ For transportation abroad, you must comply with international law and the rules and regulations of the destination country.

NAMES OF PARTS (Fig. 1 – Fig. 16)

SYMBOLS

WARNING
The following show symbols used for the machine.
Be sure that you understand their meaning before use.

| DH12DD: Cordless Rotary Hammer
---|---
| To reduce the risk of injury, user must read instruction manual.
**| Only for EU countries
Do not dispose of electric tools together with household waste material!
In observance of European Directive 2012/19/EU on waste electrical and electronic equipment and its implementation in accordance with national law, electric tools that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.
V| Rated voltage
n0| No-load speed
Bpm| Full-load impact rate
` φ* max`| Drilling diameter, max.
| Weight
(According to EPTA-Procedure 01/2014)
| Concrete
| Steel
| Wood
| Rotation only function
| Rotation and hammering function
| Switching ON
| Switching OFF
| Low mode
| Normal mode
| Disconnect the battery
| Clockwise rotation
| Counterclockwise rotation

• Depending on attached battery. The heaviest weight is measured with BSL1240M.

Battery

| Remaining battery indicator switch
---|---
| Lights ; The battery remaining power is over 75%
| Lights ; The battery remaining power is 50% – 75%.
| Lights ; The battery remaining power is 25% – 50%.
| Lights ; The battery remaining power is less than 25%
| Blinks ; The battery remaining power is nearly empty.
Recharge the battery soonest possible.
| Blinks ; Output suspended due to high temperature.
Remove the battery from the tool and allow it to fully cool down.
| Blinks ; Output suspended due to failure or malfunction.
The problem may be the battery so please contact your dealer.

NOTE
To prevent the battery power consumption caused by forgetting to turn off the LED light, the light goes off automatically in about 3 seconds.

STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package contains the accessories listed on page 207.
Standard accessories are subject to change without notice.

APPLICATIONS
Rotation and hammering function
○ Drilling anchor holes
○ Drilling holes in concrete
○ Drilling holes in tile
Rotation only function
○ Drilling in steel or wood (with optional accessories)
○ Tightening machine screws, wood screws (with optional accessories)

SPECIFICATIONS

The specifi cations of this machine are listed in the Table on page 207.
NOTE
Due to HiKOKI’s continuing program of research and development, the specifi cations herein are subject to change without prior notice.

CHARGING
Before using the power tool, charge the battery as follows.

1. Connect the charger’s power cord to the receptacle.
   When connecting the plug of the charger to a receptacle, the pilot lamp will blink in red (At 1- second intervals).

2. Insert the battery into the charger.
   Firmly insert the battery into the charger as shown in Fig. 3 (on page 2).

3. Charging
   When inserting a battery in the charger, charging will commence and the pilot lamp will light continuously in red.
   When the battery becomes fully recharged, the pilot lamp will blink in red. (At 1-second intervals) (See Table 1)
   ● Pilot lamp indication
   The indications of the pilot lamp will be as shown in Table 1, according to the condition of the charger or the rechargeable battery.● Regarding the temperatures and charging time of the battery.
   The temperatures and charging time will become as shown in Table 2. NOTE
   The recharging time may vary according to the ambient temperature and power source voltage.
   In addition, the charge time becomes signifi cantly long in a low temperature environment, but this is not abnormal.
   CAUTION
   When the battery charger has been continuously used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging.

4. Disconnect the charger’s power cord from the receptacle.

5. Hold the charger fi rmly and pull out the battery.
   NOTE
   Be sure to pull out the battery from the charger after use, and then keep it.

CAUTION
○ If the battery is charged while it is heated because it has been left for a long time in a location subject to direct sunlight or because the battery has just been used, the pilot lamp of the charger lights for 1 second, does not light for 0.5 seconds (off for 0.5 seconds). In such a case, fi rst let the battery cool, then start charging.
○ When the pilot lamp fl ickers (at 0.2-second intervals), check for and take out any foreign objects in the charger’s battery connector. If there are no foreign objects, it is probable that the battery or charger is malfunctioning.
Take it to your authorized Service Center.
○ Since the built-in micro computer takes about 3 seconds to confi rm that the battery being charged with charger is taken out, wait for a minimum of 3 seconds before reinserting it to continue charging. If the battery is reinserted within 3 seconds, the battery may not be properly charged.
○ If the pilot lamp does not blink in red (every second) even though the charger cord is connected to the power, it indicates that the protection circuit of the charger may be activated.
Remove the cord or plug from the power and then connect it again after 30 seconds or so. If this does not cause the pilot lamp to blink in red (every second), please take the charger to the HiKOKI Authorized Service Center.

MOUNTING AND OPERATION

• For detailed information regarding each tool, contact a HiKOKI authorized service center.

SELECT OPERATION MODE

Pressing the changeover switch allows the selection of rotation speed and the auto stop function.
○ Rotation speed (Low mode/Normal mode) (Fig. 13) Select either Low mode or Normal mode and operate the tool in the selected speed.
○ Auto stop mode (on/off ) (Fig. 14)
This product is equipped with an auto stop function to support continuous drilling work. The function features a memory mode for storing the work time for drilling from switch ON to switch OFF, and an auto stop mode that automatically stops the motor from the second drilling onward should the work exceed the stored work time while the switch is ON.

AUTO STOP FUNCTION

In selection mode, pressing the button for longer than two seconds will move to memory mode. (Fig. 14)
(At the same time the auto stop lamp will blink.)
Conduct drilling when the auto stop lamp is fl ashing. The time between switching ON and switching OFF is stored by the tool.
(At the same time, the auto stop lamp will light up.)
Conduct drilling when the auto stop lamp is flashing.
Continuous drilling is possible as the memory storage time will be recorded by the tool until the auto stop function’s auto stop mode is cancelled.
The auto stop function is cancelled by pressing the changeover switch once again for over two seconds.
(At the same time, the auto stop lamp will switch off .)

CAUTION
○ Switch ON the tool once you place the tip of the tool on the work material.
○ The rotation speed and the level at which the switch is pulled during drilling is not stored to memory.
○ Fully carry out drilling in one go during auto stop mode.
○ The motor will stop even if you switch OFF within the memory storage time.
○ When you switch OFF within the memory storage time, the count will be reset. If you rework a task in which a hole has been partially drilled, the memory storage time will be fully recounted.
○ The auto stop function will remain active until canceled.

REACTIVE FORCE CONTROL

This product is equipped with a Reactive Force Control (RFC) feature that reduces jerking of the tool body.
If the tool bit is suddenly overburdened, any jerking of the tool body is reduced by activation of the slip clutch or by stopping of the motor by the sensor built into the tool body.
If the motor is stopped because of overburdening detection by the controller, the display lamp will blink while the switch is pulled. In addition, the lamp will continue blinking for approximately three seconds after the switch is released.
The motor will remain stopped while the lamp is blinking. (Fig. 17)
Because the RFC feature may not activate or its performance may be insufficient depending on the working environment and conditions, be careful not to suddenly overburden the tool bit while operating.

● Possible causes of sudden overburdening

1. Tool bit biting into material
2. Impact against nails, metal or other hard objects
3. Tasks involving prying or any excess application of pressure, etc.
4. Also, other causes include any combination of the aforementioned.

• When the reactive force control (RFC) is triggered When the RFC is triggered and the motor stops, turn off the tool’s switch and remove the cause of the overburdening before continuing operation.

ABOUT THE PROTECTION FUNCTION
This tool has a built-in protection circuit for preventing damage to the unit in the event of an abnormality. Depending on the following, the display lamp and the indicator lamp will flash, and the unit will cease to operate. Verify the problem indicated by the fl ashing and take the necessary steps to correct the problem.
When pressing the changeover switch, do so when the switch is not being pulled.

Table 3

temperature limit.
(High temperature protection function)| Allow the unit to cool for 15 to 30 minutes.
When the temperature goes down and the display lamp and the
indicator lamp blinking stops, pull the switch trigger to recover
operation.
| Sudden overburdening of the tool bit has activated the RFC,
stopping further operation of the tool.
RFC (See page 11 “REACTIVE FORCE CONTROL”)| Release the switch trigger and leave it until the display lamp blinking stops. Pull the switch trigger again to recover operation.
Before continuing operation, remove the cause of the overburden.

NOTE
Despite taking steps to correct a problem, the display lamp may continue to blink. Should this be the case, the unit may require repair. If so, please contact the outlet from which this product was purchased for repairs.

LUBRICATION

Low viscosity grease is applied to this rotary hammer so that it can be used for a long period without replacing the grease. Please contact the nearest service center for grease
replacement when any grease is leaking form loosened screw.
Further use of the rotary hammer despite the grease shortage causes damage to reduce the service life.
CAUTION
A specifi c grease is used with this machine, therefore, the normal performance of the machine may be badly affected by use of different grease. Please be sure to let one of our service centers to undertake replacement of the grease.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to turned off the switch and remove the battery before maintenance and inspection.

1. Inspecting the tool
   Since use of as dull tool will degrade effi ciency 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. Inspection of terminals (tool and battery)
   Check to make sure that swarf and dust have not collected on the terminals.
   On occasion check prior, during and after operation.
   CAUTION
   Remove any swarf or dust which may have collected on the terminals.
   Failure to do so may result in malfunction.

5. Cleaning on the outside
   When the power tool is stained, wipe with a soft dry cloth or a cloth moistened with soapy water. Do not use chloric solvents, gasoline or paint thinner, for they melt plastics.

6. Cleaning the battery installation compartment and the battery
   After drilling concrete, if concrete dust has accumulated on the battery installation compartment and the battery, clean off the accumulated concrete dust with an air gun or a dry cloth before using the tool. (Fig. 16)
   Also, after cleaning, ensure that the battery can be installed and removed smoothly from the tool.
   CAUTION
   Using the tool when the battery is covered with concrete dust may lead to accidents such as the battery falling during use.
   Furthermore, such use may cause a malfunction or contact failure between the battery and the terminals.

7. Storage
   Store the power tool in a place in which the temperature is less than 40°C and out of reach of children.

NOTE
Storing lithium-ion batteries.
Make sure the lithium-ion batteries have been fully charged before storing them.
Prolonged storage (3 months or more) of batteries with a low charge may result in performance deterioration, signifi cantly reducing battery usage time or rendering the batteries incapable of holding a charge.
However, signifi cantly reduced battery usage time may be recovered by repeatedly charging and using the batteries two to fi ve times.
If the battery usage time is extremely short despite repeated charging and use, consider the batteries dead and purchase new batteries.
CAUTION
In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

Important notice on the batteries for the HiKOKI cordless power tools
Please always use one of our designated genuine batteries. We cannot guarantee the safety and performance of our cordless power tool when used with batteries other than these designated by us, or when the battery is disassembled and modifi ed (such as disassembly and replacement of cells or other internal parts).

GUARANTEE
We guarantee HiKOKI Power Tools in accordance with statutory/country specifi c regulation. This guarantee does not cover defects or damage due to misuse, abuse, or normal wear and tear. In case of complaint, please send the Power Tool, undismantled, with the GUARANTEE CERTIFICATE found at the end of this Handling instruction, to a HiKOKI Authorized Service Center.

Information concerning airborne noise and vibration
The measured values were determined according to EN60745 and declared in accordance with ISO 4871.
Measured A-weighted sound power level: 99 dB (A) Measured A-weighted sound pressure level: 88 dB (A) Uncertainty K: 3 dB (A).
Wear hearing protection.
Vibration total values (triax vector sum) determined according to EN60745.
Hammer drilling into concrete:
Vibration emission value ah, HD = 9.1 m/s2
Uncertainty K = 1.5 m/s2

The declared vibration total value has been measured in accordance with a standard test method and may be used for comparing one tool with another.
It may also be used in a preliminary assessment of exposure.
WARNING
○ The vibration emission during actual use of the power tool can differ from the declared total value depending in the ways in which the tool is used.
○ Identify safety measures to protect the operator that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

NOTE
Due to HiKOKI’s continuing program of research and development, the specifi cations herein are subject to change without prior notice.

TROUBLESHOOTING

Use the inspections in the table below if the tool does not operate normally. If this does not remedy the problem, consult your dealer or the HiKOKI Authorized Service Center.

1. Power tool

Concrete dust has accumulated on the terminals of the battery installation compartment as well as on the battery sliding grooves.| Clean off the accumulated concrete dust with a dry cloth.
Tool suddenly stopped| Tool was overburdened| Get rid of the problem causing the overburden.
Reactive force control was activated
The battery is overheated.| Let the battery cool down.
Tool bits
-can’t be attached -fall off| The shape of the attachment portion doesn’t match| For the SDS-plus shank type , use a bit with a diameter that is within the designated range.
Holes can’t be smoothly drilled.| The drill is worn| Replace with a new drill.
The drill is rotating in reverse| Switch to forward rotation.
Screw head slips or comes loose.| Bit number doesn’t match with the screw size| Install a suitable bit.
The bit is worn| Replace with a new bit.
Battery cannot be installed| Attempting to install a battery other than that specified for the tool.| Please install batteries that are BSL12xx series.
| DH12DD
---|---
V| 10,8–12 Peak
n0| 0–1080 min-1
Bpm| 0–5500 min-1
φ max | 18 mm
φ max | 13 mm
φ max | 18 mm
| 2,0–2,1 kg
|
---|---
DH12DD| (2LSK)| 2| 1| 1| –| 1| 1| 1
(2LSP)| 2| 1| –| 1| 1| 1| 1
(NNP)| –| –| –| 1| 1| 1| –
(NN)| –| –| –| –| 1| 1| –

GUARANTEE CERTIFICATE

1. Model No.
2. Serial No.
3. Date of Purchase
4. Customer Name and Address
5. Dealer Name and Address
   (Please stamp dealer name and address)

Hikoki Power Tools (U.K.) Ltd.
Precedent Drive, Rooksley, Milton Keynes, MK 13, 8PJ,
United Kingdom
Tel: +44 1908 660663
Fax: +44 1908 606642
URL: http://www.hikoki-powertools.uk

EC DECLARATION OF CONFORMITY
We declare under our sole responsibility that Cordless Rotary Hammer, identifi ed by type and specifi c identifi cation code 1), is in conformity with all relevant requirements of the directives 2) and standards 3). Technical file at 4) – See below.
The European Standard Manager at the representative offi ce in Europe is authorized to compile the technical file.
The declaration is applicable to the product affixed CE marking.

1) DH12DD C359862S
2) 2006/42/EC, 2014/30/EU, 2014/35/EU, 2011/65/EU
*3) EN60745-1:2009+A11:2010
EN60745-2-6:2010
EN60335-1:2012+A11:2014
EN60335-2-29:2004+A2:2010
EN55014-1:2006+A1:2009+A2:2011
EN55014-2:1997+A1:2001+A2:2008

*4) Representative office in Europe
Hikoki Power Tools Deutschland GmbH
Siemensring 34, 47877 Willich, Germany
Head office in Japan
Koki Holdings Co., Ltd.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome,
Minato-ku, Tokyo, Japan

30. 11. 2020
Akihisa Yahagi
European Standard Manager

Koki Holdings Co., Ltd
011
Code No. C99738472 F
Printed in China

References

• Strona główna | HIKOKI
• HiKOKI Power Tools Österreich - High Performance Power Tools
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• Home - Hikoki-powertools.cz
• HiKOKI Power Tools Deutschland - High Performance Power Tools
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• HiKOKI Power Tools Ibérica - HiKOKI
• Hikoki powertools
• HiKOKI - High Performance Power Tools
• HiKOKI Power Tools
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• HiKOKI Power Tools

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