BTW120 - Screwdriver MAKITA - Free user manual and instructions

Product Type	Cordless Impact Driver
Brand	Makita
Model	BTW120
Capacities (standard bolt)	8 mm - 14 mm
Capacities (high-tensile bolt)	6 mm - 12 mm
Square drive	12.7 mm
No-load speed	0 - 2,300 min⁻¹
Impacts per minute	0 - 3,000
Max tightening torque	120 Nm
Overall length	176 mm
Net weight (with battery)	1.5 kg
Rated voltage	12 V DC
Power supply	Rechargeable lithium-ion battery
Battery capacity	2.0 Ah or 3.3 Ah
Charging time	Approx. 30 min (2.0 Ah) or 50 min (3.3 Ah)
Charger type	Makita charger (included)
Switch	Variable speed trigger
Forward/reverse switch	Yes (clockwise/counterclockwise + center position)
Cooling system	Built-in fan
Sound pressure level	94 dB(A)
Sound power level	107 dB(A)
Weighted acceleration	7 m/s²
Maintenance	Carbon brush replacement
Safety	Hearing protection recommended; always disconnect battery before maintenance

Frequently Asked Questions - BTW120 MAKITA

How to install the battery on the Makita BTW120 impact driver?

To install the battery, align the battery tab with the groove in the housing and slide it until it clicks. Make sure the red part of the button is no longer visible to ensure a secure lock.

What is the battery charging time?

The charging time is approximately 30 minutes for a 2.0 Ah battery and approximately 50 minutes for a 3.3 Ah battery. Use only the supplied Makita charger.

How to reverse the rotation direction?

Use the reverser located above the trigger. Move the lever to side A for clockwise rotation (tightening) or side B for counterclockwise rotation (loosening). Always set the reverser to neutral position when not using the tool.

How to install and remove the socket?

Depending on the socket type: for a socket without O-ring, push it onto the anvil until it locks. For a socket with O-ring, remove the O-ring and pin, insert the socket aligning the holes, then reinsert the pin and replace the O-ring. To remove, reverse the operation.

What is the maximum tightening torque of the BTW120?

The maximum tightening torque is 120 Nm. This torque may vary depending on the type and size of the bolt. Use a torque wrench to verify the torque after tightening.

What to do if the charge indicator flashes red?

If the indicator flashes red, it may indicate that the battery is too hot or too cold. Wait for the battery to cool down or warm it to room temperature. If flashing persists, clean the terminals or check the battery condition.

How to replace the tool's carbon brushes?

As soon as one of the carbon brushes reaches its wear limit, replace the pair with brushes of the same type. Unscrew the brush holder cap and remove the worn brushes. For safety, have this operation performed by a Makita service center.

What types of bolts can I tighten with this impact driver?

The impact driver can tighten standard bolts from 8 mm to 14 mm and high-tensile bolts from 6 mm to 12 mm. Use an appropriate socket for precise torque.

How to maintain the Makita BTW120 impact driver?

Before any maintenance, disconnect the battery. Regularly clean the charger and battery vents. For carbon brush replacement, go to an authorized service center. Store the tool in a dry place at a temperature below 50°C.

What accessories are recommended for the BTW120?

Use only recommended Makita accessories: appropriately sized sockets, original charger and battery. Use of non-approved accessories may present a risk of injury.

USER MANUAL BTW120 MAKITA

Explanation of general view

1 Red part
2 Button
3 Battery cartridge
4 Terminal cover
5 Charging lights
6 Battery charger
7 Socket
8 Anvil

9 Pin

10 O-ring
11 Switch trigger
12 Reversing switch lever
13 A side
14 B side
15Clockwise
16 Counterclockwise

17 Fastening time
18 Seconds
19 Proper fastening torque for
20 Fastening torque
21 Limit mark
22 Brush holder cap
23 Screwdriver

SPECIFICATIONS

Model BTW120

Capacities

Standard bolt 8 mm - 14 mm

High tensile bolt 6 mm - 12 mm

Square drive 12.7 mm

No load speed (mft) 0 - 2,300

Impacts per minute 0-3,000

Max. fastening torque 120

Overall length 176 mm

Net weight (with battery cartridge) 1.5 kg

Rated voltage D.C. 12 V

• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
  Note: Specifications may differ from country to country.

Safety Hints

For your own safety, please refer to the enclosed safety instructions.

IMPORTANT SAFETY INSTRUCTIONS FOR CHARGER & BATTERY

ENC002-3

1. SAVE THESE INSTRUCTIONS - This manual contains important safety and operating instructions for battery charger.
2. Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.
3. CAUTION - To reduce risk of injury, charge only MAKITA type rechargeable batteries. Other types of batteries may burst causing personal injury and damage.
4. Do not expose charger to rain or snow.
5. Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fire, electric shock, or injury to persons.
6. To reduce risk of damage to electric plug and cord, pull by plug rather than cord when disconnecting charger.
7. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.

8. Do not operate charger with damaged cord or plug - replace them immediately.

9. Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman.

10. Do not disassemble charger or battery cartridge; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.

11. To reduce risk of electric shock, unplug 9 charger from outlet before attempting any maintenance or cleaning. Turning off controls will not reduce this risk.

12. The battery charger is not intended for use by young children or infirm persons without supervision.
13. Young children should be supervised to ensure that they do not play with the battery charger.
14. If operating time has become excessively shorter, stop operating immediately. It may result in a risk of overheating, possible burns and even an explosion.
15. 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.

ADDITIONAL SAFETY RULES FOR CHARGER & BATTERY CARTRIDGE

1. Do not charge battery cartridge when temperature is BELOW 10^ (50^) or ABOVE 40^ (104^) .
2. Do not attempt to use a step-up transformer, an engine generator or DC power receptacle.
3. Do not allow anything to cover or clog the charger vents.
4. 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.

1. Do not store the tool and battery cartridge inOPERATING INSTRUCTIONS locations where the temperature may reach or exceed 50^ (122^) . Installing or removing battery cartridge
2. Do not incinerate the battery cartridge even if(Fig. 1) it is severely damaged or is completely worn. Always switch off the tool before insertion or out. The battery cartridge can explode in a fire removal of the battery cartridge.
3. Be careful not to drop, shake or strike battery. To remove the battery cartridge, withdraw it from the
4. Do not charge inside a box or container of any kind. The battery must be placed in a well ventilated area during charging.

ADDITIONAL SAFETY RULES FOR TOOL

• 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 up it locks in place with a little click. If you can see th

• Be aware that this tool is always in an operating condition, because it does not have to be plugged into an electrical outlet.

• Hold tool by insulated gripping surfaces when the tool, causing injury to you or someone around performing an operation where the cutting tool you.

may contact hidden wiring. Contact with a Do not use force when inserting the battery carlive" wire will also make exposed metal partstridge. If the cartridge does not slide in easily, it is of the tool "live" and shock the operator. not being inserted correctly.

1. Wear ear protectors.
2. Check the socket carefully for wear, cracks or damage before installation.
3. Hold the tool firmly.
4. Always be sure you have a firm footing.
5. 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.

Charging (Fig. 2)

1. Plug the battery charger into the proper A/C voltage source. Two charging lights will flash in green co repeatedly.
2. Insert the battery cartridge into charger until it stops adjusting to the guide of charger. Terminal cover charger can be opened with inserting and closed with pulling out the battery cartridge.
3. When the battery cartridge is inserted, the charging light color will change from green to red and char will begin. The charging light will keep lighting up lit steadily during charging. One red charging light indicates charged condition in 0 - 80% and two red ones indicate 80 - 100% .
4. With finish of charge, the charging lights will change from two red ones to two green ones.
5. If you leave the battery cartridge in the charger after the charging cycle is complete, the charger will into its "trickle charge (maintenance charge)" mode which will last approximately 24 hours.
6. After charging, unplug the charger from the power source. Refer to the table below for the charging time

Battery type Capacity (mAh) Number of cells Charging time
BH1220	2,000	10	Approx. 30 min.
BH1233	3,300	10	Approx. 50 min.

NOTE:

• The battery charger is for charging Makita-battery cartridge. Never use it for other purposes or for other manufacturer's batteries.
• When you charge a new battery cartridge or a battery cartridge which has not been used for a period of time, it may not accept a full charge. Is a normal condition and does not indicate a problem. You can recharge the battery cartridge fully after discharging it completely and recharging couple of times.
• If you charge a battery cartridge from a just-operated tool or battery cartridge which has been left in a location exposed to direct sunlight for a time, the charging light may flash in red color. If occurs, wait for a while. Charging will begin after battery cartridge is cooled by the cooling fan installed in the charger. When the temperature or battery is more than approx. 70^ , two charging lights may flash in red color, and when approx. 50^ - 70^ , one charging light in red color.
• If the charging light flashes alternately in green a red color, charging is not possible. The terminals the charger or battery cartridge are clogged with dust or the battery cartridge is worn out or damaged.

Cooling system

• This charger is equipped with cooling fan for heated battery in order to enable the battery to prove its own performance. Sound of cooling air comes out3, during cooling, which means no trouble on the charger.

• Yellow light will flash for warning in the following cases.

• Trouble on cooling fan

• Incomplete cool down of battery, such as, being clogged with dust

The battery can be charged in spite of the yellowAlways use the correct size socket for bolts and nuts. warning light. But the charging time will be longerAn incorrect size socket will result in inaccurate and than usual in this case. inconsistent fastening torque and/or damage to the

Check the sound of cooling fan, vent on the chargeit or nut. and battery, which can be sometime clogged with Installing

• The cooling system is in order although no soundCofUtion:
  cooling fan comes out, if the yellow warning light A ways be sure that the tool is switched off and the not flash. battery cartridge is removed before installing or
  Always keep clean the vent on charger and battenmoving the socket. for cooling. 1 For socket withb
• The products should be sent to repair or maintenance, if the yellow warning light will frequently flash.
  To install the socket, push it onto the anvil of the tool until it locks into place.

Conditioning charge

Conditioning charge can extend the life of battery by automatically searching the optimum charging condition for the batteries in every situation.

The battery employed in the following conditions long, will be worn out shortly, and yellow warning light may flash.

1. Recharge of battery with its high temperature
2. Recharge of battery with its low temperature
   3a Recharge of full charged battery
3. Over-discharge of battery (continue to discharge battery in spite of down of power.)
4. Recharge under broken cooling system
   The charging time of such battery is longer than this usual.

Trickle charge (Maintenance charge)

If you leave the battery cartridge in the charger to prevent spontaneous discharging after full charge, the charger will switch into its "trickle charge (maintenance charge)" mode and keep the battery car

edge fresh and fully charged.

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.
   And Never recharge a fully charged battery cartridge.
   Overcharging shortens the battery service life.
   Charge the battery cartridge with room temperature at 10^ - 40^ (50^ - 104^) .
   Let a hot battery cartridge cool down by inserting it into the charger.
2. Charge the Nickel Metal Hydride battery cartridge when you do not use it for more than six months.

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

Installing or removing socket (Fig. 3 & 4)

1. For socket without O-ring and pin

To remove the socket, simply pull it off.

2. For socket with O-ring and pin

• 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.

Switch action (Fig. 5)

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.

To start the tool, simply pull the trigger. Tool speed increased by increasing pressure on the trigger. Release the trigger to stop.

Reversing switch action (Fig. 6)

CAUTION:

• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes a complete stop. Changing the direction of rotation before the tool stops may damage the tool.
• When not operating the tool, always set the revering 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.

Operation (Fig. 7 & 8)

The proper fastening torque may differ depending upon the kind or size of the bolt. The relation bet fastening torque and fastening time is shown in the figures.

Hold the tool firmly and place the socket over the or nut. Turn the tool on and fasten for the proper fastening time.

NOTE:

• Hold the tool pointed straight at the bolt or nut without applying excessive pressure on the tool.
• Excessive fastening torque may damage the bolt nut. Before starting your job, always perform a test operation to verify the adequate fastening speed and time for your bolt or nut.

The fastening torque is affected by a wide variety factors including the following. After fastening, alwa 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.

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 the 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.

• 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.

Type of materials to be fastened, the manner of holding the tool and the tool speed will affect the torque.

CAUTION:

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.

MAINTENANCE

CAUTION:

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

Replacement of carbon brushes (Fig. 9 & 10)

Replace carbon brushes when they are worn down to the limit mark. Both identical carbon brushes should be replaced at the same time.

to maintain product safety and reliability, repairs, maintenance or adjustment should be carried out by a Makita Authorized Service Center.

VEILIGHEIDSVOORSCHRIFTEN VOOR ACCULADER EN ACCU

Reversbryter (Fig. 6)

NB!

These accessories or attachments are recommended for use with your Makita tool specified in this manual. Use of any other accessories or attachments might present a risk of injury to persons. The accessories or attachments should be used only in the proper and intended manner.

F ACCESSOIRES

ATTENTION :

EC-DECLARATION OF CONFORMITY

The undersigned, Yasuhiko Kanzaki, authorized by Makita Corporation, 3-11-8 Sumiyoshi-Cho, Anjo, Aichi 446-8502 Japan declares that this product

(Serial No.: series production)

manufactured by Makita Corporation in Japan is in compliance with the following standards or standardized documents,

EN50260, EN55014,

in accordance with Council Directives, 89/336/EEC and 98/37/EC.

FRANÇAISE

DECLARATION DE CONFORMITE CE

Director Aministratore

Director Director

Direktor Director

MAKITA INTERNATIONAL EUROPE LTD.

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

PORTUGUES

EU-DEKLARATION OM KONFORMITET

Undertegnede, Yasuhiko Kanzaki, med fuldmagt fra Makit Corporation, 3-11-8 Sumiyoshi-Cho, Anjo, Aichi 446-8502

(AuEwAp: npaywyn oεipac)

Kaataokvuao evo any Etaipeia Makita otny Ianwvia, pioke tal ooupwvia u ta akolouo npotuna n tunonoineva eyypapa,

EN50260. EN55014

ouφwva με Tiç Oδηγες Tou Σuβouλiou, 89/336/EEC ka 98/37/KE.

Yasuhiko KanzakiCE 2000

Director Direktor

Direktor Johtaja

Direktor

MAKITA INTERNATIONAL EUROPE LTD.

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

ENGLISH

EC-DECLARATION OF CONFORMITY

The undersigned, Yasuhiko Kanzaki, authorized by Kao Lung Tamura Electronics Co., Ltd. No. 4 Industry 1st St Ping Tung Industry District Chiao Nan Li, Ping Tung City Taiwan declares that this battery charger

(Serial No.: series production)

manufactured by Kao Lung Tamura Electronics Co., Ltd. Taiwan is in compliance with the following standards or standardized documents,

in accordance with Council Directives, 73/23/EEC and 89/336/EEC.

ITALIANO

Director Aministratore

Director Directeur

Direktor Director

MAKITA INTERNATIONAL EUROPE LTD.

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

PORTUGUES

NORSK

de accordo com as directivas 73/23/CEE e 89/336/CEE Conselho.

Kandertegnede, Yasuhiko Kanzaki, med fullmakt fra Kao Streeting Tamura Electronics Co., Ltd. No. 4 Industry 1st Street City Ping Tung Industry District Chiao Nan Li, Ping Tung City, Taiwan bekrefter herved at dette batterilader

EU-DEKLARATION OM KONFORMITET

1. Undertegnede, Yasuhiko Kanzaki, med fuldmagt fra Kaia Chung Lung Tamura Electronics Co., Ltd. No. 4 Industry 1st to 3 Ping Tung Industry District Chiao Nan Li, Ping Tung 6000 Taiwan, erklær hermed, at dette batteriopladeren

O unoypaaw, Yasuhiko Kanzaki, eouoioofoetnuevo
Stree nv etaipia Kao Lung Tamura Electronics Co.,
City Ltd. No. 4 Industry 1st Street, Ping Tung Industry District Chiao Nan Li, Ping Tung City, Taiwan, oto auto to optiotnc matapia

(AuEwAp: npaywyn oεipac)

dar-kataokueaogevo ano tnv Etaipia Kao Lung Tamura Electronics Co., Ltd. otnv Taiwan, pioketau o eoupwvia e ta akoloutheta npotuna n tunooineva

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

ENGLISH

Noise And Vibration

The typical A-weighted noise levels are sound pressure level: 94 dB (A) sound power level: 107 dB (A)

• Wear ear protection. -

The typical weighted root mean square acceleration valueO valor medio da acceleracao é 7 m/s is 7 m/

PORTUGUES

Ruido e Vibração

Os niveis normais de ruido A sao nivel de pressao de som: 94 dB (A) nivel do sum: 107 dB (A)