Makita BTW450RFE User Manual

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ENGLISH

INSTRUCTION MANUAL

Cordless Impact Wrench

BTW450

WARNING:

For your personal safety, READ and UNDERSTAND before using. SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

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ENGLISH

SPECIFICATIONS

Model BTW450

Capacities

Square drive 12.7 mm

No load speed (min-1) 1,600

Impacts per minute 2,200

Max. fastening torque 440 N.m

Overall length 266 mm

Net weight 3.4 kg

• Due to our continuing programme of research and development, the specifications herein are subject to change without notice.

• Note: Specifications may differ from country to country.

Rated voltage D.C.18 V

Symbols

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

Intended use The tool is intended for fastening bolts and nuts.

For European countries only Noise

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

Vibration

The vibration total value (tri-axial vector sum) determined according to EN60745-2-2:

･ Read instruction manual.

･ Only for EU countries

Do not dispose of electric equipment together with household waste material! In observance of European Directive 2002/96/EC on waste electric and electronic equipment and its implementation in accordance with national law, electric equipment that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.

Sound pressure level (L Sound power level (L Uncertainty (K) : 3 dB(A)

Wear ear protection

Work mode : impact tightening of fasteners of the maximum capacity of the tool Vibration emission (a Uncertainty (K) : 1.5 m/s

) : 19 m/s

Standard bolt M12 - M22

High tensile bolt M12 - M16

END004-2

EC-DECLARATION OF CONFORMITY

Model; BTW450

We declare under our sole responsibility that this product is in compliance with the following standards of standardized documents; EN60745, EN55014 in accordance with Council Directives, 2004/108/EC, 98/37/EC.

000230

Responsible Manufacturer: Makita Corporation 3-11-8, Sumiyoshi-cho, Anjo, Aichi, JAPAN

ENE036-1

Authorized Representative in Europe: Makita International Europe Ltd. Michigan Drive, Tongwell, Milton Keynes, Bucks MK15

ENG102-1

8JD, ENGLAND

General Power Tool Safety Warnings

) : 94 dB(A)

) : 105 dB(A)

ENG205-1

WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

Work area safety

1. Keep work area clean and well lit. Cluttered or dark areas invite accidents.

2. Do not operate power tools in explosive

atmospheres, such as in the presence of

CE2007

Tomoyasu Kato

Director

ENH102-7

GEA006-1

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flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.

3. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

4. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will

reduce risk of electric shock.

5. 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.

6. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

7. 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.

8. 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.

9. If operating a power tool in a damp location is

unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of an

GFCI reduces the risk of electric shock.

Personal Safety

10. 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.

11. 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.

12. 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 energising power tools that have the switch on invites accidents.

13. 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.

14. Do not overreach. Keep proper footing and

balance at all times. This enables better control of the power tool in unexpected situations.

15. 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.

16. If devices are provided for the connection of

dust extraction and collection facilities, ensure these are connected and properly used.

Use of dust collection can reduce dust-related hazards.

Power tool use and care

17. 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.

18. 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.

19. 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.

20. 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.

21. Maintain power tools. Check for misalignment

or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents

are caused by poorly maintained power tools.

22. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.

23. 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.

Battery tool use and care

24. 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.

25. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.

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26. 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 fire.

27. 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.

SERVICE

28. 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.

29. Follow instruction for lubricating and

changing accessories.

30. Keep handles dry, clean and free from oil and

grease.

GEB009-2

SPECIFIC SAFETY RULES

DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to recipro saw safety rules. If you use this tool unsafely or incorrectly, you can suffer serious personal injury.

1. Hold power tools by insulated gripping

surfaces when performing an operation where the cutting tool may contact hidden wiring or its own cord. Contact with a "live" wire will make

exposed metal parts of the tool "live" and shock the operator.

2. Wear ear protectors.

3. Check the socket carefully for wear, cracks or

damage before installation.

4. Hold the tool firmly.

5. Always be sure you have a firm footing.

Be sure no one is below when using the tool in high locations.

6. The proper fastening torque may differ

depending upon the kind or size of the bolt. Check the torque with a torque wrench.

SAVE THESE INSTRUCTIONS.

WARNING:

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 battery cartridge, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.

2. Do not disassemble battery cartridge.

3. If 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 battery cartridge in a

container with other metal objects such as nails, coins, etc.

(3) Do not expose 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 the tool and battery cartridge in locations where the temperature may reach or exceed 50 ﾟ C (122 ﾟ 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. Be careful not to drop or strike battery.

SAVE THESE INSTRUCTIONS.

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 with room temperature at 10 ﾟ C - 40 ﾟ C (50 ﾟ F - 104 ﾟ F). Let a hot battery cartridge cool down before charging it.

ENC007-2

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FUNCTIONAL DESCRIPTION

CAUTION:

• Always be sure that the tool is switched off and the

battery cartridge is removed before adjusting or checking function on the tool.

Installing or removing battery cartridge

1. Red part

2. Button

3. Battery cartridge

tool stops may damage the tool. The switch is reversible, providing either clockwise or counterclockwise rotation. To start the tool, simply pull the lower part (A) of the switch trigger for clockwise or the upper part (B) for counterclockwise. Release the switch trigger to stop.

Lighting up the front lamp

1. Lamp

2. Lamp switch

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• Always switch off the tool before installation or

removal of the battery cartridge.

• To remove the battery cartridge, withdraw it from

the tool while sliding the button on the front of the cartridge.

• To insert the battery cartridge, align the tongue on

the battery cartridge with the groove in the housing and slip it into place. Always insert it all the way until it locks in place with a little click. If you can see the red part on the upper side of the button, it is not locked completely. Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury to you or someone around you.

• Do not use force when inserting the battery

cartridge. If the cartridge does not slide in easily, it is not being inserted correctly.

Switch action

1. Switch trigger

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CAUTION:

• Before inserting the battery cartridge into the tool,

always check to see that the switch trigger actuates properly and returns to the "OFF" position when released.

• Change the direction of rotation only when the tool

comes to a complete stop. Changing it before the

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CAUTION:

• Do not look in the light or see the source of light

directly. Push the upper position of the lamp switch for turning on the light and the lower position for off.

NOTE:

• Use a dry cloth to wipe the dirt off the lens of lamp.

Be careful not to scratch the lens of lamp, or it may

lower the illumination.

• The light is provided with anti excessive discharge

circuit. When the lamp does not light up even after

the light switch is turned on, there is likely to be

battery power drop. Try to charge the battery

cartridge.

• Keep the lamp switch in "off" position while not in

need of the light.

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.

Selecting correct socket

Always use the correct size socket for bolts and nuts. An incorrect size socket will result in inaccurate and inconsistent fastening torque and/or damage to the bolt or nut.

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Installing or removing socket

1. Socket

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1. For socket without O-ring and pin To install the socket, push it onto the anvil of the tool until it locks into place. To remove the socket, simply pull it off.

2. For socket with O-ring and pin

2. Anvil

1. Socket

2. O-ring

3. Pin

The hook is convenient for temporarily hanging the tool. This can be installed on either side of the tool. To install the hook, insert it into a groove in the tool housing on either side and then secure it with a screw. To remove, loosen the screw and then take it out.

OPERATION

CAUTION:

• Always insert the battery cartridge all the way until

it locks in place. If you can see the red part on the upper side of the button, it is not locked completely. Insert it fully until the red part cannot be seen. If not, it may accidentally fall out of the tool, causing injury

to you or someone around you. Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and fasten for the proper fastening time.

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Move the O-ring out of the groove in the socket and remove the pin from the socket. Fit the socket onto the anvil of the tool so that the hole in the socket is aligned with the hole in the anvil. Insert the pin through the hole in the socket and anvil. Then return the O-ring to the original position in the socket groove to retain the pin. To remove the socket, follow the installation procedures in

reverse. Align the hole in the side of the socket with the detent pin on the anvil and push it onto the anvil of the tool until it locks into place. Tap it lightly if required. To remove the socket, simply pull it off.

Hook

CAUTION:

After installing the hook, make sure that it is screwed firmly.

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1. Groove

2. Screw

3. Hook

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The proper fastening torque may differ depending upon the kind or size of the bolt, the material of the workpiece to be fastened, etc. The relation between fastening torque and fastening time is shown in the figures.

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N m

(kgf cm)

300

(3060)

200

(2040)

Fastening torque

100

(1020)

01 23

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N m

(kgf cm)

300

(3060)

200

(2040)

Fastening torque

100

(1020)

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Standrad bolt

M16

M12

Fastening time(S)

High tensile bolt

M14

M12

Fastening time(S)

M20

M16

(M20)

Proper fastening torque

(M16)

(M12)

(M16)

(M14)

(M12)

Proper fastening torque

NOTE:

• Hold the tool pointed straight at the bolt or nut.

• Excessive fastening torque may damage the

bolt/nut or socket. Before starting your job, always perform a test operation to determine the proper fastening time for your bolt or nut.

• If the tool is operated continuously until the battery

cartridge has discharged, allow the tool to rest for 15 minutes before proceeding with a fresh battery

cartridge. The fastening torque is affected by a wide variety of factors including the following. After fastening, always check the torque with a torque wrench.

1. When the battery cartridge is discharged almost completely, voltage will drop and the fastening torque will be reduced.

2. Socket

• Failure to use the correct size socket will

cause a reduction in the fastening torque.

• A worn socket (wear on the hex end or square

end) will cause a reduction in the fastening torque.

3. Bolt

• Even though the torque coefficient and the

class of bolt are the same, the proper fastening torque will differ according to the diameter of bolt.

• Even though the diameters of bolts are the

same, the proper fastening torque will differ according to the torque coefficient, the class of bolt and the bolt length.

4. The use of the universal joint or the extension bar somewhat reduces the fastening force of the impact wrench. Compensate by fastening for a longer period of time.

5. The manner of holding the tool or the material of driving position to be fastened will affect the torque.

6. Operating the tool at low speed will cause a reduction in the fastening torque.

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and the

battery cartridge is removed before attempting to perform inspection or maintenance.

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Replacing carbon brushes

1. Limit mark

001145

Remove and check the carbon brushes regularly. Replace when they wear down to the limit mark. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes. Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.

1. Brush holder

cap

2. Screwdriver

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To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Makita Authorized Service Centers, always using Makita replacement parts.

ACCESSORIES

CAUTION:

• These accessories or attachments are

recommended for use with your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury to persons. Only use accessory or

attachment for its stated purpose. If you need any assistance for more details regarding these accessories, ask your local Makita Service Center.

• Sockets

• Extension bar

• Universal joint

• Bit adapter

• Makita genuine battery and charger

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