Makita HR001G Cordless Combination Hammer Instruction Manual

Cordless Combination  Hammer
INSTRUCTION MANUAL
HR001G
HR002G
HR003G
HR004G

SPECIFICATIONS

Optional accessory

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• The weight may differ depending on the attachment(s), including the battery The lightest and heavi­est combinations, according to EPTA-Procedure 01/2014, are shown in the table.

Applicable battery cartridge and charger

• Some of the battery cartridges and chargers listed above may not be available depending on your region of residence.

WARNING: Only use the battery cartridges and chargers listed above. Use of any other battery cartridges and chargers may cause injury and/or fire.

Recommended cord connected power source

• The cord-connected power source(s) listed above may not be available depending on your region of residence.
• Before using the cord-connected power source, read the instructions and cautionary markings on them.

Intended use

The tool is intended for hammer drilling and drilling in brick, concrete, and stone as well as for chiseling work. It is also suitable for drilling without impact in wood, metal, ceramic, and plastic.

Noise

The typical A-weighted noise level determined accord­ing to EN60745-2-6:

Model 1-1R001G
Sound pressure level (L_PA) : 95 dB(A)
Sound power level (L_wA) : 106 dB (A)
Uncertainty (K) : 3 dB(A)

Model HROO2G
Sound pressure level (Lp_A): 93 dB(A)
Sound power level (L_wA): 104 dB (A)
Uncertainty (K) : 3 dB(A)

Model HR003G
Sound pressure level (L_PA) : 95 dB(A)
Sound power level (L_wA) : 106 dB (A)
Uncertainty (K) : 3 dB(A)

Model 1-1R004G
Sound pressure level (L_PA) : 93 dB(A)
Sound power level (L_wA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)

Model HROO1G with DX12
Sound pressure level (L_PA) : 93 dB(A)
Sound power level (L_wA): 104 dB (A)
Uncertainty (K) : 3 dB(A)

Model HROO2G with DX14
Sound pressure level (L_PA) : 93 dB(A)
Sound power level (L_wA) : 104 dB (A)
Uncertainty (K) : 3 dB(A)

Model 1-1R003G with DX12
Sound pressure level (L_PA) : 93 dB(A)
Sound power level (L_w$ : 104 dB (A)
Uncertainty (K) : 3 dB(A)

Model 1-1R004G with DX14
Sound pressure level (Lp_A): 93 dB(A)
Sound power level (L_wA): 104 dB (A)
Uncertainty (K) : 3 dB(A)

NOTE: The declared noise emission value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared noise emission value(s) may also be used in a preliminary assessment of exposure.

Vibration

The following table shows the vibration total value (tri-axial vector sum) determined according to applica­ble standard.

Model HROO1G

Model HROO2G

Model HR003G

NOTE: The declared vibration total value(s) has been measured in accordance with a standard test method and may be used for comparing one tool with another.
NOTE: The declared vibration total value(s) 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 value(s) depending on the ways in which the tool is used especially what kind of workpieces are processed.
WARNING: Be sure to identify safety measures to protect the operator that is 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).

EC Declaration of Conformity

For European countries only
The EC declaration of conformity is included as Annex A to this instruction manual.

SAFETY WARNINGS

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.

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.
4. Wear a hard hat (safety helmet), safety glasses, and/or face shield. Ordinary eyes or sunglasses are NOT safety glasses. It is also highly recommended that you wear a dust mask and thickly padded gloves.
5. Be sure the bit is secured in place before operation.
6. Under normal operation, the tool is designed to produce vibration. The screws can come loose easily, causing a breakdown or accident. Check the tightness of screws carefully before operation.
7. In cold weather or when the tool has not been used for a long time, let the tool warm up for a while by operating it under no load. This will loosen up the lubrication. Without proper warm-up, hammering operation is difficult.
8. Always be sure you have a firm footing. Be sure no one is below when using the tool in high locations.
9. Hold the tool firmly with both hands.
10. Keep hands away from moving parts.
11. Do not leave the tool running. Operate the tool only when hand-held.
12. Do not point the tool at anyone in the area when operating. The bit could fly out and injure someone seriously.
13. Do not touch the bit, parts close to the bit, or workpiece immediately after operation; they may be extremely hot and could burn your skin.
14. Some material contains chemicals that may be toxic. Take caution to prevent dust inhalation and skin contact. Follow material supplier safety data.
15. Always be sure that the tool is switched off and the battery cartridge and the bit are removed before handing the tool to another person.
16. Before the operation, make sure that there is no buried object such as an electric pipe, water pipe, or gas pipe in the working area. Otherwise, the drill bit/chisel may touch them, resulting in an electric shock, electrical leakage, or gas leak.
17. Do not operate the tool at no-load unnecessarily.

SAVE THESE INSTRUCTIONS.

WARNING: DO NOT let comfort or familiarity with the product (gained from repeated use) replace strict adherence to safety rules for the subject product. MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

Important safety instructions for battery cartridge

1. Before using the battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using the battery.
2. Do not disassemble or tamper with the battery cartridge. It may result in a fire, excessive heat, or explosion.
3. If the operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, possible burns, and even an explosion.
4. If electrolyte gets into your eyes, rinse them out with clear water and seek medical attention right away. It may result in loss of your eyesight.
5. Do not short the battery cartridge: (1) Do not touch the terminals with any conductive material. (2) Avoid storing the battery cartridge in a container with other metal objects such as nails, coins, etc. (3) Do not expose the battery cartridge to water or rain. A battery short can cause a large current flow, overheating, possible burns, and even a breakdown.
6. Do not store and use the tool and battery cartridge in locations where the temperature may reach or exceed 50 °C (122 °F).
7. Do not incinerate the battery cartridge even if it is severely damaged or is completely worn out. The battery cartridge can explode in a fire.
8. Do not nail, cut, crush, throw, drop the battery cartridge, or hit a hard object to the battery cartridge. Such conduct may result in a fire, excessive heat, or explosion.
9. Do not use a damaged battery.
10. The contained lithium-ion batteries are subject to the Dangerous Goods Legislation requirements. For commercial transports e.g. by third parties, forwarding agents, special requirements on packaging and labeling must be observed. For the preparation of the item being shipped, consulting an expert for hazardous material is required. Please also observe possibly more detailed national regulations. Tape or mask off open contacts and pack up the battery in such a manner that it cannot move around in the packaging.
11. When disposing of the battery cartridge, remove it from the tool and dispose of it in a safe place. Follow your local regulations relating to the disposal of batteries.
12. Use the batteries only with the products specified by Makita. Installing the batteries to non-compliant products may result in a fire, excessive heat, explosion, or leak of electrolyte.
13. If the tool is not used for a long period of time, the battery must be removed from the tool.
14. During and after use, the battery cartridge may take on heat which can cause burns or low-temperature burns. Pay attention to the handling of hot battery cartridges.
15. Do not touch the terminal of the tool immediately after use as it may get hot enough to cause burns.
16. Do not allow chips, dust, or soil to stuck into the terminals, holes, and grooves of the battery cartridge. It may result in poor performance or breakdown of the tool or battery cartridge.
17. Unless the tool supports the use of near high-voltage electrical power lines, do not use the battery cartridge near high-voltage electrical power lines. It may result in a malfunction or breakdown of the tool or battery cartridge.
18. Keep the battery away from children.

CAUTION: Only use genuine Makita batteries. Use of non-genuine Makita batteries, or batteries that have been altered, may result in the battery bursting causing fires, personal injury, and damage. It will also void the Makita warranty for the Makita tool and charger.

Tips for maintaining maximum battery life

1. Charge the battery cartridge before completely discharged. Always stop tool operation and charge the battery cartridge when you notice less tool power.
2. Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.
3. Charge the battery cartridge at room temperature at 10 °C – 40 °C (50 °F – 104 °F). Let a hot battery cartridge cool down before charging it.
4. When not using the battery cartridge, remove it from the tool or the charger.
5. Charge the battery cartridge if you do not use it for a long period (more than six months).

Important safety instructions for a wireless unit

1. Do not disassemble or tamper with the wireless unit.
2. Keep the wireless unit away from young children. If accidentally swallowed, seek medical attention immediately.
3. Use the wireless unit only with Makita tools.
4. Do not expose the wireless unit to rain or wet conditions.
5. Do not use the wireless unit in places where the temperature exceeds 50 °C (122 °F).
6. Do not operate the wireless unit in places where medical instruments, such as heart pacemakers are nearby.
7. Do not operate the wireless unit in places where automated devices are nearby. If operated, automated devices may develop malfunction or error.
8. Do not operate the wireless unit in places under high temperatures or places where static electricity or electrical noise could be generated.
9. The wireless unit can produce electromagnetic fields (EMF) but they are not harmful to the user.
10. The wireless unit is an accurate instrument. Be careful not to drop or strike the wireless unit.
11. Avoid touching the terminal of the wireless unit with bare hands or metallic materials.
12. Always remove the battery on the product when installing the wireless unit into it.
13. When opening the lid of the slot, avoid the place where dust and water may come into the slot. Always keep the inlet of the slot clean.
14. Always insert the wireless unit in the correct direction.
15. Do not press the wireless activation button on the wireless unit too hard and/or press the button with an object with a sharp edge.
16. Always close the lid of the slot when operating.
17. Do not remove the wireless unit from the slot while the power is being supplied to the tool. Doing so may cause a malfunction of the wireless unit.
18. Do not remove the sticker on the wireless unit.
19. Do not put any stickers on the wireless unit.
20. Do not leave the wireless unit in a place where static electricity or electrical noise could be generated.
21. Do not leave the wireless unit in a place subject to high heat, such as a car sitting in the sun.
22. Do not leave the wireless unit in a dusty or powdery place or in a place corrosive gas could be generated.
23. Sudden change in the temperature may bedew the wireless unit. Do not use the wireless unit until the dew is completely dried.
24. When cleaning the wireless unit, gently wipe with a dry soft cloth. Do not use benzine, thinner, conductive grease, or the like.
25. When storing the wireless unit, keep it in the supplied case or a static-free container.
26. Do not insert any devices other than Makita wireless unit into the slot on the tool.
27. Do not use the tool with the lid of the slot damaged. Water, dust, and dirt coming into the slot may cause malfunction.
28. Do not pull and/or twist the lid of the slot more than necessary. Restore the lid if it comes off from the tool.
29. Replace the lid of the slot if it is lost or damaged.

FUNCTIONAL DESCRIPTION

CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before adjusting or checking the function on the tool.

Installing or removing the battery cartridge

CAUTION: Always switch off the tool before installing or removing the battery cartridge.
CAUTION: Hold the tool and the battery cartridge firmly when installing or removing the battery cartridge. Failure to hold the tool and the battery cartridge firmly may cause them to slip off your hands and result in damage to the tool and battery cartridge and a personal injury.

► Fig.1:

1. Red indicator
2. Button
3. Battery cartridge

To remove the battery cartridge, slide it from the tool while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the battery cartridge with the groove in the housing and slip it into place. Insert it all the way until it locks in place with a little click. If you can see the red indicator as shown in the figure, it is not locked completely.

CAUTION: Always install the battery cartridge fully until the red indicator cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.
CAUTION: Do not install the battery cartridge forcibly. If the cartridge does not slide in easily, it is not being inserted correctly.

Indicating the remaining battery capacity

Press the check button on the battery cartridge to indicate the remaining battery capacity. The indicator lamps light up for a few seconds.
► Fig.2:

1. Indicator lamps
2. Check button

NOTE: Depending on the conditions of use and the ambient temperature, the indication may differ slightly from the actual capacity.
NOTE: The first (far left) indicator lamp will blink when the battery protection system works.

Tool/battery protection system

The tool is equipped with a tool/battery protection system. This system automatically cuts off power to the motor to extend tool and battery life. The tool will automatically stop during operation if the tool or battery is placed under one of the following conditions:

Overload protection
When the battery is operated in a manner that causes it to draw an abnormally high current, the tool automatically stops without any indication. In this situation, turn the tool off and stop the application that caused the tool to become overloaded. Then turn the tool on to restart.

Overheat protection
When the tool or battery is overheated, the tool stops automatically. In this case, let the tool and battery cool before turning the tool on again.

NOTE: When the tool is overheated, the lamp blinks.
Over-discharge protection
When the battery capacity is not enough, the tool stops automatically. In this case, remove the battery from the tool and charge the battery.

Switch action

WARNING: Before installing the battery cartridge into the tool, always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.

► Fig.3: 1. Switch trigger
To start the tool, simply pull the switch trigger. Tool speed is increased by increasing pressure on the switch trigger. Release the switch trigger to stop.

Speed change

The revolutions and blows per minute can be adjusted by turning the adjusting dial. The dial is marked 1 (lowest speed) to 5 (full speed).
► Fig.4: 1. Adjusting the dial
Refer to the table below for the relationship between the number on the adjusting dial and the revolutions and blows per minute.

CAUTION: Do not turn the adjusting dial when the tool is running. Failure to do so may result in the loss of control of the tool and cause an injury.

NOTICE: If the tool is operated continuously at a low speed for a long time, the motor will get overloaded, resulting in tool malfunction.
NOTICE: The speed adjusting dial can be turned only as far as 5 and back to 1. Do not force it past 5 or 1, or the speed adjusting function may no longer work.
NOTE: Soft no-load rotation function (For HR001G/HR002G) When the speed adjusting dial is set to “4” or higher, the tool automatically reduces the speed at no-load to reduce the vibration under no-load. Once the operation starts with a bit against concrete, blows per minute increase and reach the numbers as shown in the table. When the temperature is low and there is less fluidity in grease, the tool may not have this function even with the motor rotating.

Lighting up the front lamp

► Fig.5: 1. Lamp

CAUTION: Do not look in the light or see the source of light directly.

Pull the switch trigger to light up the lamp. The lamp keeps on lighting while the switch trigger is being pulled. The lamp goes out approximately 10 seconds after releasing the switch trigger.

CAUTION: For HR001G/HR002G If the lamp goes off after blinking for a few seconds, the active feedback sensing technology is not working properly. Ask your local Makita Service Center for repair.

NOTE: Use a dry cloth to wipe the dirt off the lens of the lamp. Be careful not to scratch the lens of a lamp, or it may lower the illumination.
NOTE: If the dust collection system is installed on the tool, the lamp of the dust collection system lights up instead of the lamp of the tool.

Reversing switch action

► Fig.6: 1. Reversing switch lever
CAUTION: Always check the direction of rotation before operation.
CAUTION: Use the reversing switch only after the tool comes to a complete stop. Changing the direction of rotation before the tool stops may damage the tool.
CAUTION: When not operating the tool, always set the reversing switch lever to the neutral position.

This tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the A-side for clockwise rotation or from the B-side for counterclockwise rotation. When the reversing switch lever is in the neutral position, the switch trigger cannot be pulled.

Changing the quick-change chuck for SDS-plus

For HR002G/HR004G
The quick-change chuck for SDS-plus can be easily exchanged for the quick change drill chuck.
Removing the quick-change chuck for SDS-plus
CAUTION: Before removing the quick-change chuck for SDS-plus, be sure to remove the bit.

Grasp the change cover of the quick-change chuck for SDS-plus and turn in the direction of the arrow until the change cover line moves from the symbol to the symbol. Pull forcefully in the direction of the arrow
► Fig.7: 1. Quick change chuck for SDS-plus 2. Change cover 3. Change cover line

Installing the quick-change drill chuck
Check the line of the quick change drill chuck shows the symbol. Grasp the change cover of the quick change drill chuck and set the line to the symbol. Place the quick-change drill chuck on the spindle of the tool. Grasp the change cover of the quick-change drill chuck and turn the change cover line to
the symbol until a click can clearly be heard.
► Fig.8:

1. Quick change drill chuck
2. Spindle
3. Change cover line
4. Change cover

Selecting the action mode

NOTICE: Do not rotate the action mode changing knob when the tool is running. The tool will be damaged.
NOTICE: To avoid rapid wear on the mode change mechanism, be sure that the action mode changing knob is always positively located in one of the three action mode positions.

Rotation with hammering For drilling in concrete, masonry, etc., rotate the action mode changing knob to the symbol. Use a tungsten carbide tipped bit (optional accessory).
► Fig.9: 1. Rotation with hammering 2. Action mode changing knob

Rotation only
For drilling in wood, metal, or plastic materials, rotate the action mode changing knob to the symbol. Use a twist drill bit or wood drill bit.
► Fig.10: 1. Rotation only

Hammering only
For chipping, scaling or demolition operations, rotate the action mode changing knob to the symbol. Use a bull point, cold chisel, scaling chisel, etc.
► Fig.11: 1. Hammering only

Hook

CAUTION: Always remove the battery when changing the tool with the hook.
CAUTION: Never hook the tool at a high location or on a potentially unstable surface.

The hook is convenient for temporarily hanging the tool. To use the hook, simply lift up the hook until it snaps into the open position. When not in use, always lower the hook until it snaps into the closed position.
► Fig.12: 1. Hook
► Fig.13

Connecting the lanyard (tether strap) to the hook

CAUTION: Do not use damaged hook and screws. Before use, always check for damages, cracks, or deformations, and make sure that the screws are tightened.
CAUTION: Make sure that the hook is securely installed with the screws.
CAUTION: Do not install or remove any accessory while hanging the tool. The tool may fall if the screws are not tightened.
CAUTION: Always use a locking carabiner (multi-action and screw gate type) and be sure to attach the lanyard (tether strap) to the double looped portion of the hook. Improper attachment may cause tool to drop from the hook and result in personal injury.

The hook is also used for connecting the lanyard (tether
strap). Be sure to connect the lanyard (tether strap) to
the double looped portion of the hook.
► Fig.14:

1.  A double looped portion of the hook
2. Lanyard (tether strap)
3. Locking carabiner (multi-action and screw gate type)

Adjusting the nozzle position of the dust collection system

Optional accessory
Push in the guide while pushing up the guide adjustment button, and then release the button at the desired position.
► Fig.15:
1. Guide
2. Guide adjustment button

NOTE: Before adjusting the nozzle position, release the nozzle forward completely by pushing up the guide adjustment button.

If a long drill bit is installed, extend the guide by pushing up the extension button.
► Fig.16:
1. Extension button

Adjusting the drilling depth of the dust collection system

Optional accessory Slide the depth adjustment button to the desired position while pushing it up. The distance (A) is the drilling depth.
► Fig.17:
1. Depth adjustment button

Torque limiter

NOTICE: As soon as the torque limiter actuates, switch off the tool immediately. This will help prevent premature wear of the tool.
NOTICE: Drill bits such as hole saw, which tend to pinch or catch easily in the hole, are not appropriate for this tool. This is because they will cause the torque limiter to actuate too frequently.

The torque limiter will actuate when a certain torque level is reached. The motor will disengage from the output shaft. When this happens, the drill bit will stop turning.
The tool is equipped with electronic functions for easy operation.

• Constant speed control
  The speed control function provides the constant rotation speed regardless of load conditions.
• Active Feedback sensing Technology (For HR001G/HR002G)
  If the tool is swung at the predetermined acceleration during operation, the motor is forcibly stopped to reduce the burden on the wrist.

NOTE: This function does not work if the acceleration does not reach the predetermined one when the tool is swung.
NOTE: If the bit is swung at the predetermined acceleration during chipping, scaling, or demolishing, the motor is forcibly stopped. In this case, release the switch trigger, and then pull the switch trigger to restart the tool.

ASSEMBLY

CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool.

Side grip (auxiliary handle)

CAUTION: Always use the side grip to ensure safe operation.
CAUTION: After installing or adjusting the side grip, make sure that the side grip is firmly secured.

To install the side grip, follow the steps below. 1. Loosen the thumbscrew on the side grip.
► Fig.18:
1. Thumbscrew 2. Attach the side grip while pressing the thumbscrew so that the grooves on the grip fit in the protrusions on the tool barrel.
► Fig.19:
1. Thumbscrew 3. Tighten the thumbscrew to secure the grip. The grip can be fixed at the desired angle.

Grease

Coat the shank end of the drill bit beforehand with a small amount of grease (about 0.5 – 1 g). This chuck lubrication assures smooth action and long service life.

Installing or removing the drill bit

Clean the shank end of the drill bit and apply grease before installing the drill bit.
► Fig.20:
1. Shank end 2. Grease Insert the drill bit into the tool. Turn the drill bit and push it in until it engages. After installing the drill bit, always make sure that the drill bit is securely held in place by trying to pull it out.
► Fig.21:
1. Drill bit To remove the drill bit, pull the chuck cover down all the way and pull the drill bit out.
► Fig.22:
1. Drill bit 2. Chuck cover

Chisel angle (when chipping, scaling or demolishing)

The chisel can be secured at the desired angle. To change the chisel angle, rotate the action mode changing knob to the symbol. Turn the chisel to the desired angle.
► Fig.23:
1. Action mode changing knob Rotate the action mode changing knob to the symbol. Then make sure that the chisel is securely held in place by turning it slightly.

Depth gauge

The depth gauge is convenient for drilling holes of uniform depth. Press and hold the lock button, and then insert the depth gauge into the hex hole. Make sure that the toothed side of the depth gauge faces the marking.
► Fig.24:
1. Depth gauge 2. Lock button 3. Marking 4. Toothed side Adjust the depth gauge by moving it back and forth while pressing the lock button. After the adjustment, release the lock button to lock the depth gauge.
NOTE: Make sure that the depth gauge does not touch the main body of the tool when attaching it.

Installing or removing the dust collection system

Optional accessory
To install the dust collection system, insert the tool into the dust collection system all the way until it locks in place with a little double click.
► Fig.25
To remove the dust collection system, pull the tool while pressing the lock-off button.
► Fig.26:
1. Lock-off button

Dust cup

Optional accessory
Use the dust cup to prevent dust from falling over the tool and on yourself when performing overhead drilling operations. Attach the dust cup to the bit as shown in the figure. The size of bits to which the dust cup can be attached is as follows.

► Fig.27: 1. Dust cup

Optional accessory Before installing the dust cup set, remove the bit from the tool if installed. Install the dust cup set on the tool so that the symbol on the dust cup is aligned with the groove in the tool.
► Fig.28: 1. symbol 2. Groove

NOTE: If you connect a vacuum cleaner to the dust cup set, remove the dust cap before connecting it.
► Fig.29: 1. Dust cap To remove the dust cup set, remove the bit while pulling the chuck cover in the direction of the arrow.
► Fig.30: 1. Bit 2. Chuck cover Hold the root of the dust cup and pull it out.
► Fig.31
NOTE: If the cap comes off from the dust cup, attach it with its printed side facing up so that groove on the cap fits in the inside periphery of the attachment.
► Fig.32

OPERATION

CAUTION: Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations.
CAUTION: Always make sure that the workpiece is secured before operation.
CAUTION: Do not pull the tool out forcibly even if the bit gets stuck. Loss of control may cause injury.

CAUTION: The dust collection system is intended for drilling in concrete only. Do not use the dust collection system for drilling in metal or wood.
CAUTION: When using the tool with the dust collection system, be sure to attach the filter to the dust collection system to prevent dust inhalation.
CAUTION: Before using the dust collection system, check that the filter is not damaged. Failure to do so may cause dust inhalation.
CAUTION: The dust collection system collects the generated dust at a considerable rate, but not all dust can be collected.

NOTICE: Do not use the dust collection system for core drilling or chiseling.
NOTICE: Do not use the dust collection system for drilling in wet concrete or use this system in a wet environment. Failure to do so may cause malfunction.
NOTE: If the battery cartridge is at a low temperature, the tool’s capability may not be fully obtained. In this case, warm up the battery cartridge by using the tool with no load for a while to fully obtain the tool’s capability.
► Fig.33

Hammer drilling operation

CAUTION: There is a tremendous and sudden twisting force exerted on the tool/drill bit at the time of hole break-through, when the hole becomes clogged with chips and particles, or when striking reinforcing rods embedded in the concrete. Always use the side grip (auxiliary handle) and firmly hold the tool by both side grip and switch handle during operations. Failure to do so may result in the loss of control of the tool and potentially severe injury.

Set the action mode changing knob to the symbol. Position the drill bit at the desired location for the hole, then pull the switch trigger. Do not force the tool. Light pressure gives the best results. Keep the tool in position and prevent it from slipping away from the hole. Do not apply more pressure when the hole becomes clogged with chips or particles. Instead, run the tool at an idle, then remove the drill bit partially from the hole. By repeating this several times, the hole will be cleaned out and normal drilling may be resumed.

NOTE: Eccentricity in the drill bit rotation may occur while operating the tool with no load. The tool automatically centers itself during operation. This does not affect the drilling precision.

Chipping/Scaling/Demolition

Set the action mode changing knob to the symbol. Hold the tool firmly with both hands. Turn the tool on and apply slight pressure on the tool so that the tool will not bounce around, uncontrolled.  Pressing very hard on the tool will not increase efficiency.
► Fig.34

Drilling in wood or metal

CAUTION: Hold the tool firmly and exert care when the drill bit begins to break through the workpiece. There is a tremendous force exerted on the tool/drill bit at the time of hole breakthrough.
CAUTION: A stuck drill bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool may back out abruptly if you do not hold it firmly.
CAUTION: Always secure workpieces in a vise or similar hold-down device.
NOTICE: Never use “rotation with hammering” when the drill chuck is installed on the tool. The drill chuck may be damaged. Also, the drill chuck will come off when reversing the tool.
NOTICE: Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your drill bit, decrease the tool performance and shorten the service life of the tool.
Set the action mode changing knob to the symbol.
For HR001G/HR003G
Optional accessory
Attach the chuck adapter to a keyless drill chuck to which a 1/2″-20 size screw can be installed and then install them to the tool. When installing it, refer to the section “Installing or removing drill bit”.
► Fig.35: 1. Keyless drill chuck 2. Chuck adapter
For HR002G/HR004G
Uses the quick-change drill chuck as standard equipment. When installing it, refer to “changing the quick-change chuck for SDS-plus”. Hold the ring and turn the sleeve counterclockwise to open the chuck jaws. Place the bit in the chuck as far as it will go. Hold the ring firmly and turn the sleeve clockwise to tighten the chuck.
► Fig.36: 1. Sleeve 2.
Ring To remove the bit, hold the ring and turn the sleeve counterclockwise.
Diamond core drilling
NOTICE: If performing diamond core drilling operations using “rotation with hammering” action, the diamond core bit may be damaged.
When performing diamond core drilling operations, always set the action mode changing knob to the position to use the “rotation only” action.

Beating dust on the filter

Optional accessory
CAUTION: Do not turn the dial on the dust case while the dust case is removed from the dust collection system. Doing so may cause dust inhalation.
CAUTION: Always switch off the tool when turning the dial on the dust case. Turning the dial while the tool is running may result in the loss of control of the tool.

By beating the dust on the filter inside the dust case, you can keep the vacuum efficient and also reduce the number of times to dispose of the dust. Turn the dial on the dust case three times after collecting every 50,000 mm of dust or when you feel the vacuum performance decline.

NOTE: 50,000 mm³ of dust equivalents to drilling 10 holes of ø10 mm and 65 mm depth (14 holes of ø3/8″ and 2″ depth).
► Fig.37: 1. Dust case 2. Dial

Disposing of dust

Optional accessory
CAUTION: Always be sure that the tool is switched off and the battery cartridge is removed before carrying out any work on the tool.
CAUTION: Be sure to wear a dust mask when disposing of dust.
CAUTION: Empty the dust case regularly before the dust case becomes full. Failure to do so may decrease the dust collection performance and cause dust inhalation. CAUTION: The performance of dust collection decreases if the filter in the dust case becomes clogged. Replace the filter with a new one after approximately 200 times of dust fulfillment as a guide. Failure to do so may cause dust inhalation. 1. Remove the dust case while pressing down the lever the dust case.
► Fig.38: 1. Lever 2. Open the cover of the dust case.
► Fig.39: 1. Cover 3. Dispose of the dust, and then clean the filter.
► Fig.40
NOTICE: When cleaning the filter, tap the case of the filter gently by hand to remove dust. Do not tap the filter directly; touch the filter with a brush or similar, or blow compressed air on the filter. Doing so may damage the filter.
Blow-out bulb
Optional accessory
After drilling the hole, use the blow-out bulb to clean the dust out of the hole.
► Fig.41

Using dust cup set

Optional accessory Fit the dust cup set against the ceiling when operating the tool.
► Fig.42
NOTICE: Do not use the dust cup set when drilling in metal or similar. It may damage the dust cup set due to the heat produced by small metal dust or similar.
NOTICE: Do not install or remove the dust cup set with the drill bit installed in the tool. It may damage the dust cup set and cause a dust leak.

Connecting lanyard (tether strap) to the hook

Safety warnings specific for use at height Read all safety warnings and instructions. Failure to follow the warnings and instructions may result in serious injury.

1. Always keep the tool tethered when working “at height”. The maximum lanyard length is 2 m. The maximum permissible fall height for a lanyard (tether strap) must not exceed 2 m.
2. Use only with lanyards appropriate for this tool type and rated for at least 8.0 kg.
3. Do not anchor the tool lanyard to anything on your body or on movable components. Anchor the tool lanyard to a rigid structure that can withstand the forces of a dropped tool.
4. Make su