Nitto Kohki Atra Ace CLO-2725 User manual

された
イメージを表示で き ません。ファイルが 移動または 削除された か、名前 が変更 された可能性が あります。 リンクに 正しいファイル 名と場所が 指定され ていることを 確認して ください 。
(Original Instructions)
TQ16463-0 12/2021
For One-touch Type
Annular Cutter 25L Only
Rechargeable
INSTRUCTION
MANUAL
[Specifications]
Main unit
Model CLO-2725 Use the battery and charger manufactured
by Koki Holdings Co., Ltd.
Voltage 36 V
No-load Speed 820 min-1 Battery BSL36A18
MAX. Magnet Magnetic Power 5500 N (561 kgf *1) BSL36B18
Magnet Dimensions 65×145 mm Charger UC18YSL3
Adjustment Range Front/back travel: 10 mm,
left/right travel: 10 mm R
ead the instruction manual of Koki Holdings
Co., Ltd., on how to use the battery and
charger.
For further information about the battery and
charger, contact Koki Holdings Co., Ltd.
Mass (weight)
9.0 kg
(When equipped with battery and feed
handle)
Cutter Plate Thickness Hole Diameter
JETBROACH one-touch type 6 to 25 mm 12 to 27 mm dia.
*1 The value in kgf is for reference only.
 Please read the manual carefully before you attempt to use your tool so that you may use it properly and safely.
 Keep the manual handy - so you can use it whenever necessary.
• Due to continuous product development/improvement, the specifications and configurations in this document are subject to
change without prior notice.
Manufactured by.
NITTO KOHKI CO., LTD.
9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo, 146-8555, Japan
Tel : [phone] Fax : [phone]
Thank you very much for your purchase of this NITTO KOHKI product.
Before using your tool, please read this manual carefully so that you may use it properly to get the most out of it.
Professional tool
Portable Magnetic Base Drilling Machine
Atra Ace
Model: CLO-2725 (NN)

2
EN
Please keep the manual handy - so you can use it whenever necessary.
 English : Please ask your dealer or distributor for instruction manual in local language(s).
 German : Bitte fragen Sie lhren Händler nach eine Betriebsanleitung in Landessprache.
 French : S'il vous plait, veuillez demandez á votre foumisseur de manuel instruction en langue locale.
 Spanish : Por favor, cantacte con su distribuidor para el manual de instrucciones en español.
 Portuguese : Por favor pessa ao seo agente ou distribuidor o manual de instrucces ih linguagen local.
 Italian : Per Manuale Istruzioni in lingua locale Vi preghiamo di rivolgervi al rivenditore o distributore.
 Dutch : Vraag uw handelaar om een nederladstalige gebruiksaanwijzing.
 Swedish : Be er lokala Åtreförsäljare eller distributör om manualer pá svenska.
 Danish : Venligst henvend Dem til den danske distributør for instructions manualer.
 Polish : Prosze pytac swojego dealera lub dystrybutora o instrukcje obslugi w jezyku localnym.

The following Safety notations are used throughout the manual to highlight safety precautions for the user and for the tool.
WARNING:
Indicates a potentially hazardous situation which, if not avoided by following the instructions given,
could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided by following the
instructions given,
could result in injury or material damage.
* Please note, however, that failure to observe safety precautions under the " CAUTION" category could result in a
serious occurrence depending on the situation.
Please observe all safety precautions in the manual.
CAUTION: Important precautions for tool setup, operation and maintenance.
About pictograms
WARNING: It might be dangerous to operate the tool if the instructions supplied are not followed.
Read the instruction manual before use.
Always wear suitable eye protection.
Always wear suitable hearing protection.
Always wear respiratory protective equipment (PPE).
Sound Pressure Level (LPA) 81.7 dB (A) According to EN 62841-1
Sound Power Level (LWA) 92.7 dB (A) According to EN 62841-1
Uncertainty K 1.515 dB (A) Operating Condition:
No
-
load
Vibration Emission Value ah ≦2.5 m/s
2
According to EN 62841-1 Location: Feed Handle
Storage Temperature -10°C to 50°C (no freezing)
Storage Humidity Max. 90% at 25°C (no dewing)
Operating Temperature 0°C to 40°C
Operation Altitude 1000 m Max
Operating Humidity Max. 90% at 25°C
Pollution Degree Degree 3 According to IEC60664-1
International Protection IP20 According to IEC60529

された
イメージを表示で き ません。ファイルが 移動または 削除された か、名前 が変更 された可能性が あります。 リンクに 正しいファイル 名と場所が 指定され ていることを 確認して ください 。
(Original Instructions)
TQ16463-0 12/2021
Contents
Precautions on Use (Make sure to follow the
instructions given) ................................................. 4
General safety warnings ................................................. 1
General cordless power tool safety warnings ................. 4
Product specific safety rules ........................................... 6
About drilling ................................................................... 8
Other precautions ........................................................... 9
Charger safety precautions ............................................. 9
Precautions for connecting a USB device ..................... 10
Battery specific safety rules ...........................................11
Regarding Lithium-ion Battery Transportation............... 12
1 Application ........................................................ 13
2 Checking Inside the Package ........................... 13
3 Part Names ...................................................... 14
4 Function of Electronic Control ........................... 15
Load Detection Function ............................................... 15
Battery Level Display .................................................... 15
Plate Thickness Detection ............................................ 16
Safety Functions and Alarm Detection .......................... 16
5 Charging the Battery ......................................... 17
Charging a USB Device ................................................ 18
6 Preparation ....................................................... 19
Attaching the Feed Handle Ass'y .................................. 19
Adjusting the Position of the Handle ............................. 19
Combinations of Cutters and Pilot Pin ...........................20
Attaching the Cutter .......................................................20
Preparation of Cutting Oil ..............................................22
Attaching the Battery .....................................................24
Removing the Battery ....................................................24
Checking the Battery Level ............................................25
7 Basic Operation ............................................... 26
Starting and Stopping ....................................................26
Using the Light ...............................................................27
Drilling Procedure ..........................................................28
Drilling Elongated Holes ................................................30
Drilling H-Beam Steel ....................................................31
8 Troubleshooting ............................................... 32
9 Maintenance and Inspection ............................ 33
Inspection ......................................................................33
Pilot Pin .........................................................................33
Cleaning the Filters ........................................................34
Storing the Tool ..............................................................35
Storing the Battery .........................................................35
Disposal .........................................................................35
Optional Parts ................................................................36
California Proposition 65
WARNING
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known [to
the State of California] to cause cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
Lead from lead-based paints,
Crystalline silica from bricks and cement and other masonry products, and
Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these
chemicals: work in a well-ventilated area, and work with approved safety equipment, such as those dust masks that are
specially designed to filter out microscopic particles.

4
EN
Precautions on Use (Make sure to follow the instructions given)
Before using your tool, to avoid personal injury always take the basic precautions explained in later sections.
General power tool safety warnings
WARNING
 Read all safety warnings, instructions, illustrations and specifications provided with this power tool.
Failure to follow all instructions listed below 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
 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.
(2) Electrical safety
 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 the risk of electric 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.
(3) Personal safety
 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 a 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 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 finger on the switch or energizing 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 jewelry. Keep your hair and clothing away from moving parts.
Loose clothes, jewelry 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.
 Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety
principles.
A careless action can cause severe injury within a fraction of a second.
 Keep handles and grasping dry, clean, and free from oil and grease.
Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

された
イメージを表示で き ません。ファイルが 移動または 削除された か、名前 が変更さ れた可能性が あります。 リンクに正しいフ ァイル名 と場所が 指定されているこ とを 確認してくだ さい。
(Original Instructions)
TQ16463-0 12/2021
WARNING
Drill safety warnings
WARNING
(4) Power tool use and care
 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 remove the battery pack, if detachable, 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.
 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 and accessories. 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.
 Keep handles and grasping surfaces dry, clean, and free from oil and grease.
Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.
5) Battery tool use and care
 Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may
create a risk of fire when used with another battery pack.
 Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury
and fire.
 When the 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 fire.
 Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with
water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
 Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable
behavior resulting in fire, explosion, or risk of injury.
 Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C may
cause explosion.
 Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the
instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase
the risk of fire.
6) Service
 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.
 Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or
authorized service providers.
 Do not wear gloves. Gloves may be entangled by the rotating parts or chips leading to personal injury.
 Keep your hands out of the drilling area while the tool is running. Contact with rotating parts or chips may result in personal
injury.
 Never remove chips from the drilling area while the tool is running. To remove chips, move the accessory away from the
workpiece, switch off the tool and wait for the accessory to stop moving. Use tools such as a brush or hook to remove chips.
Contact with rotating parts or chips may result in personal injury.

1
EN
General safety warnings
Personal safety
WARNING
 Dress properly.
Do not wear loose clothing or jewelry. There is a
danger of being caught in moving parts. Wear a pair of
non-slip shoes. If your hair is long, wear a protective
hair covering to contain your hair.
 Always wear eye protection.
Corrective glasses are not considered as eye
protection. Always wear appropriate eye protection.
 Wear a dust mask.
When dust is generated in the workplace, wear a dust
mask.
 Use a dust collector or dust collection equipment
correctly.
If a dust collector or dust collection equipment are being
used, check that these are connected and used
properly. Use of a dust collector can reduce risk caused
by dust.
 When loud noise is generated in the workplace,
wear earplugs.
 Do not overreach.
Keep proper footing and balance at all times.
 Be on your guard when working.
Do not use the tool when you are tired.
When you use the tool, be sure about the handling method, how to work and pay sufficient attention to the surrounding
environment.
 Never touch the tip of moving parts when the tool is running.
Also, do not direct the tip of moving parts toward people or animals.
 Be aware of tool vibration and recoil. Some tools can cause a considerable amount of vibration.
Depending on how the product is operated, the type of tool setting, and the length of operation, it could place a tremendous burden
on your hands, arms and body. The tool could cause a vibration injury or tendonitis. Avoid long-term use and take appropriate
breaks. Consult a doctor if you experience any discomfort or pain while
operating the tool.
Protective cap
Dust mask
Work clothing
Safety shoes
Earplugs
Eye protection

2
EN
Work area safety
WARNING
 Do not use the tool at home.
This is a professional tool (industrial or work tool for business). Do not bring the tool home and use it there.
 Keep the work area clean.
Working in a messy work area or work table could cause an accident.
 Be cautious about the work area.
Do not expose the tool to rain.
Do not use the tool in a damp or wet place.
Keep the work area well lit.
 Do not operate the tool in an explosive atmosphere, such as in the
presence of flammable liquids (thinner, lacquer, gasoline, etc.) or
gas.
 Do not let children come close to the work area.
Keep children and bystanders away while operating the tool.
 Some tools generate loud noise.
Check that the noise regulations of each area are complied with.
 When work must be done in high locations, make sure there is
nobody underneath the work area.
If the tool or material is dropped, it could cause an accident or
injury.
 Before starting operation, make sure that there is no conduit,
water pipe or gas pipe by your work area.
If a tool touches a buried object, it could cause electrical shock or leakage, which could cause an accident.
Before starting to work
WARNING
 Perform inspection before using the tool.
Before using the tool, check for loose screws on the tool and for damage on the protective cover or other parts,
and make sure that the tool operates normally and demonstrates prescribed functions.
Check the position adjustment and tightening status of moving parts, parts damage, attachment status, and all
other locations for issues that could affect operation.
For parts replacement and repair, follow the instructions indicated in the instruction manual.
If there are no instructions in the instruction manual, contact the retailer where you purchased the tool or the nearest office
of Nitto Kohki Group. (see the back cover of this manual).
Do not use the power tool if the switch does not turn it ON and OFF.
 Make sure to properly attach the tip tool.
If the tip tool is not attached properly, there is a risk of jumping out or damage, which could result in injury.
 After adjustment, be sure to remove tools such as spanners, wrenches, etc.
 Use appropriate tools.
Do not force small tools to do the job of a heavy-duty tool. Do not use tools for purposes not intended.
 Do not use tools in an unreasonable manner.
When the specifications are followed, tools can be used efficiently and safely.
 Secure workpieces.
Where possible use clamps or a vise to hold the work. It is safe to hold the workpieces by clamps or a vise since both hands
can be used for operation.
Precautions on Use

3
EN
Handling tools
WARNING
 Storing the tool and battery.
When the tool and battery are not used, store the tool and battery in a dry location at a temperature less than 50°C.
Also, store the tool out of the reach of children.
 Be cautious about how the tool is carried.
Do not carry the tool with your hand touching the operation switch.
Do not carry the tool by holding any part other than the handle.
 Do not leave the tool while the tool is still running.
Do not leave the work area until you turn off the operation switch, remove the battery and the tool completely stops.
 Do not allow the following chemicals to come into contact with the tool, as parts could deteriorate.
Acetone, benzine, thinner, ketone, ether, trichloroethylene, and other similar chemicals
Maintenance and inspection
WARNING
 Do not disassemble or alter the tool.
Using the tool after disassembling or remodeling it could cause an accident or injury.
 Inspect tip tools and accessories.
Always inspect tip tools and accessories for damage or deterioration before attaching them to the tool.
If damage or deterioration is found, request repair from the retailer where you purchased the tool or the nearest office of
Nitto Kohki Group.
 Inspect for damaged sections.
Sufficiently check for damage on accessories or other parts, that the tool operates normally, and that work can
be performed appropriately.
If there are accessories or parts that have been damaged or could hinder work, request repair from the retailer
where you purchased the tool or the nearest office of Nitto Kohki Group.
 Request repair from a dedicated store.
For repair or replacement of parts, request service from the retailer where you purchased the tool or the nearest office of
Nitto Kohki Group.
Repair requires special knowledge and skills. If repair is performed at a place other than a specialty store, the
tool may not demonstrate its full performance, or it could lead to an accident or injury.
Request repair with the failed status kept intact. When requesting a repair, do not throw away damaged parts. It
could be important information for investigating the failure cause so do not change the status.
 Use genuine parts.
If inappropriate parts are used, it could cause an accident or injury.
Genuine parts are listed in the instruction manual or brochure. Inquire at the retailer where you purchased the
tool or the nearest office of Nitto Kohki Group.
 Do not remove the labels or plates on the tools.
If labels or plates are broken or peeling, for a replacement label or plate contact the retailer where you purchased
the tool or the nearest office of Nitto Kohki Group.

4
EN
General cordless power tool safety warnings
WARNING
 The operating temperature of the tool and battery is 0 to 40°C. The operating temperature of the charger is -10 to
40°C.
Do not use the tool and battery in high temperatures and low temperatures because there is a risk of failure and injury.
 Use only the battery specified for NITTO KOHKI rechargeable power tool.
Use the charger and battery specified by NITTO KOHKI that is listed in the instruction manual and catalog. There is a risk of
tool failure, injury, and damage if a battery other than the specified battery is used.
 Do not use a battery that has degraded.
There is a risk of fluid leaking from the battery, heat generation, and battery rupture.
 Use the charger with a power supply that satisfies the rated voltage.
Do not use a DC power supply or engine. There is a risk of failure and fire.
 Charge the battery in a well-ventilated location.
Do not cover the battery or charger with a cloth or any other material during charging. There is a risk of battery rupture,
smoke, and fire.
 When the charger is not being used, disconnect the power plug from the outlet.
There is a risk of electric shock, smoke, and fire.
 Do not use the charger or charge a battery in a location with flammable liquids and gases.
There is a risk of smoke, fire, and battery rupture.
 Do not use the charger or charge a battery in the rain or in a humid or wet location.
There is a risk of electric shock and smoke.
 Do not allow a short-circuit between the battery terminals.
There is a risk of smoke, fire, and battery rupture if a short-circuit is caused by moisture, chips, or other conductive materials.
 Be cautious about electric shock.
Do not touch the battery, charger power plug, terminals, or around those parts with wet hands. There is a risk of electric
shock.
 Turn OFF the tool switch and remove the battery from the tool in the following situations:
When the tool is not being used and when repairing the tool.
When changing accessories, such as the cutter.
When finished working and storing the tool.
In other situations when danger is expected.
 Prevent the tool from starting unexpectedly.
Confirm that the switch is turned OFF before attaching the battery. Do not touch the rotating parts and cutter when attaching
the battery.
 Use the specified accessories and attachments.
Use the specified accessories and attachments that are listed in this instruction manual and the NITTO KOHKI catalog.
There is a risk of accident and injury.
 Do not put the battery in flames.
There is a risk of fire and battery rupture.
 If the battery leaks and fluid gets in the eyes, first wash the eyes well without rubbing using clean water, such as tap
water, and then promptly seek medical attention.
 There is a risk of skin irritation and injury if the battery leaks and the fluid gets on skin and clothes.
Promptly wash the clothes and skin well with clean water and then consult a physician.
 Ensure that chips and dust do not accumulate on the battery.
Ensure that the battery is not exposed to chips during work.
When the battery is not used, do not leave the battery in a location where it is exposed to chips and dust.
When storing the battery, clean off chips and dust from the battery and store it separately from metal components.
Do not stick nails in the battery or expose it to strong shocks.
 Do not heat the battery or expose it to high pressure, such as by placing the battery in a microwave or high-
pressure vessel.
 If the battery leaks or produces a foul odor, promptly remove the battery from all sources of fire.
 Do not use the battery anywhere other than in the tool.