BTW151 - Screwdriver MAKITA - Free user manual and instructions

Product Type	Cordless Impact Wrench
Brand	Makita
Model	BTW151
Power Source	14.4 V DC lithium-ion rechargeable battery
Battery Type	Makita BH1420 (2.0 Ah) or BH1433 (3.3 Ah)
No Load Speed	0 - 2300 min⁻¹
Impacts per Minute	0 - 3000 min⁻¹
Max Tightening Torque	150 Nm
Standard Bolt Capacity	10 mm - 16 mm
High Tensile Bolt Capacity	8 mm - 12 mm
Square Drive	12.7 mm (1/2")
Overall Length	200 mm
Net Weight (with battery)	1.9 kg
Sound Pressure Level	90 dB(A)
Sound Power Level	103 dB(A)
Vibration (weighted acceleration)	7 m/s²
Automatic Stop Function	Adjustable by number of impacts (0-99 or up to 200 impacts)
Rotation Reverser	Yes, with neutral position
Variable Speed Trigger	Yes
Charger Included	Yes, with charge indicators and cooling fan
Typical Charging Time	Approximately 30 min (BH1420) to 50 min (BH1433)
Maintenance	Carbon brush replacement possible (wear mark)
Safety	Protection against overload, short circuit and excessive temperature

Frequently Asked Questions - BTW151 MAKITA

What type of battery does the Makita BTW151 use?

The impact wrench uses Makita 14.4 V lithium-ion batteries, models BH1420 (2.0 Ah) or BH1433 (3.3 Ah).

How to adjust the automatic stop on the BTW151?

Remove the battery, then use a screwdriver to adjust the two dials at the rear of the tool. The left dial selects the mode (0-99, B, C) and the right dial sets the number of impacts or the delay. Refer to the manual for details.

What is the maximum tightening torque of the BTW151?

The maximum tightening torque is 150 Nm. It may vary depending on the bolt, socket, and battery condition.

How to install and remove the socket?

For a standard socket, push it onto the anvil until it locks. For a socket with an O-ring and pin, first remove the pin, insert the socket, then reinsert the pin aligning the holes and replace the O-ring.

What to do if the battery does not charge?

Check that the temperature is between 10°C and 40°C. If the indicators flash red and green, the terminals may be dirty or the battery is worn. Clean the contacts or contact a repair service.

How to know when to replace the carbon brushes?

The brushes must be replaced as soon as one reaches the wear mark. Always use a pair of identical brushes and contact a Makita service center.

Can I use non-Makita sockets?

It is recommended to use Makita accessories. Using unsuitable sockets may reduce tightening torque and damage the tool or fasteners.

How to reverse the rotation direction?

Use the reverser located above the trigger. Push the lever to the right (side A) for clockwise rotation, to the left (side B) for counterclockwise. Always set to neutral when not using the tool.

What is the typical charging time?

For a BH1420 (2.0 Ah) battery, approximately 30 minutes. For a BH1433 (3.3 Ah), approximately 50 minutes. Times may vary depending on temperature and battery condition.

How to clean and maintain the impact wrench?

Always disconnect the battery before any maintenance. Clean the charger and battery vents with a dry cloth. For carbon brush replacement, have it done by a professional. Do not disassemble the charger.

USER MANUAL BTW151 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
15 Clockwise
16 Counterclockwise
17 Example: Setting dial 52
18 Second digit

19 First digit
20 Fastening time
21 Seconds
22 Number of impacts
23 (Dial setting)
24 Limit mark
25 Brush holder cap
26 Screwdriver

SPECIFICATIONS

Model BTW151

Capacities
Standard bolt 10 mm - 16 mm
High tensile bolt 8 mm - 12 mm
Square drive
No load speed (mi) 0-2,300
Impacts per minute 0 - 3,000
Max. fastening torque 150
Overall length 200 mm
Net weight (with battery cartridge) 1.9 kg
Rated voltage D.C. 14.4 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

CARTRIDGE

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 5. 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 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.

Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50^ (122^) .

1. 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.
2. Be careful not to drop, shake or strike battery.
3. 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

ENB025-1

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 performing an operation where the cutting tool may contact hidden wiring. Contact with a "live" wire will also make exposed metal parts of the tool "live" and shock the operator.

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 highstalling or removing battery cartridge (Fig. 1) locations. Always switch off the tool before insertion or removal
6. The proper fastening torque may differ depending upon the kind or size of the bolt. Check the torque with a torque wrench.
   Installing or removing battery cartridge (Fig. 1)
7. Always switch off the tool before insertion or removal of the battery cartridge.
8. To remove the battery cartridge, withdraw it from the tool while sliding the button on the side of the cartridge.

SAVE THESE INSTRUCTIONS.

OPERATING INSTRUCTIONS

• 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.

Charging (Fig. 2)

1. Plug the battery charger into the proper A/C voltage source. Two charging lights will flash in green color repeatedly.
2. Insert the battery cartridge into charger until it stops adjusting to the guide of charger. Terminal cover of 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 charging 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 switch 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
BH1420 2,000 12	Approx. 30 min.
BH1433 3,300 12	Approx. 50 min.

NOTE:

The battery charger is for charging Makita-battery cartridge. This charger is equipped with cooling fan for heated battery Never use it for other purposes or for other manufacturer's in order to enable the battery to prove its own performance. batteries. Sound of cooling air comes out during cooling, which means
- When you charge a new battery cartridge or a battery no trouble on the charger.
- cartridge which has not been used for a long period of time yellow light will flash for warning in the following cases.
- it may not accept a full charge. This is a normal condition - Trouble on cooling fan

and does not indicate a problem. You can recharge the battery cartridge fully after discharging it completely and recharging a couple of times.

• If you charge a battery cartridge from a just-operated tool, battery cartridge which has been left in a location exposed to direct sunlight for a long time, the charging light may flash in red color. If this occurs, wait for a while. Charging will begin after the battery cartridge is cooled by the cooling installed in the charger. When the temperature on 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 and red color, charging is not possible. The terminals on the charge or battery cartridge are clogged with dust or the battery cartridge is worn out or damaged.

Cooling system

Incomplete cool down of battery, such as, being clogged with dust
The battery can be charged in spite of the yellow warning dight. But the charging time will be longer than usual in this case.

Check the sound of cooling fan, vent on the charger and battery, which can be sometime clogged with dust.
The cooling system is in order although no sound of cooling fan comes out, if the yellow warning light will not flash.
Always keep clean the vent on charger and battery for cooling.
The products should be sent to repair or maintenance, if the yellow warning light will frequently flash.

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 repeatedly, 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
3. Recharge of full charged battery
4. Over-discharge of battery (continue to discharge battery in spite of down of power.)
5. Recharge under broken cooling system

The charging time of such battery is longer than 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 cartridge 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.

1. Never recharge a fully charged battery cartridge. Overcharging shortens the battery service life.
2. Charge the battery cartridge with room temperature at 10^ - 40^ (50^ - 104^)

Let a hot battery cartridge cool down by inserting it in charger.

1. 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 bolt or nut.

Installing or removing socket (Fig. 3 & 4)

CAUTION:

Always be sure that the tool is switched off and the battery cartridge is removed before installing or removing the socket

1. For socket without O-ring and pin

To install the socket, push it onto the anvil of the tool, it locks into place.

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 is 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 to a complete stop. Changing the direction of rotation before the tool stops may damage the tool.
• When not operating the tool, always set the reversing switch R_RV lever to the neutral position.

This tool has a reversing switch to change the direction of rotation. Depress the reversing switch lever from the Aside 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.

Auto-stop setting for number of impacts (Fig. 7)

This tool has a convenient auto-stop mechanism that allows you to preset the desired number of impacts in terms of the application. The tool then stops automatically after reaching the preset number of impacts.

1. To set the dial on the back of the tool, first slide out the battery cartridge by sliding the button on the side of the cartridge.
2. Two dials can be seen on the battery holder side. Use a slotted screwdriver to set the dial to a desired 2-digit setting.
3. You cannot set the auto-stop setting for fastening with more than 200 impacts (over 4 sec.)

Note:

Do not force the dial when turning. You might break it.

Dial setting and function (Fig. 7)

Bolt fastening

Dial setting Clockwise Counterclockwise Application
01-98	Tool stops after the twice the set number of impacts is reached. See the next section for the appropriate fastening torque.	Pull the trigger to start the tool; release it to stop.	Bolt fastening while controlling the number of impacts.
99	Pull the trigger to start the tool; release it to stop.		Bolt fastening without controlling the number of impacts; or when fastening with more than 200 impacts (over 4 sec.)
00	No rotation even with trigger pulled.	Pull the trigger to start the tool; release it to stop.	—

Temporary bolt fastening and loosening

By using the B or C on the left dial in combination with one of the digits (from 0 to 9) on the right-hand dial, you can do temporary bolt fastening or bolt loosening.

Dial setting Clockwise Counterclockwise Application
B [*]Select dial 0 - 9 for B [*]	After catching the first impact, tool stops [*] x 0.1 seconds later.	Pull the trigger to start the tool; release it to stop.	For temporary bolt fastening
C [*]Select dial 0 - 9 for C [*]	Pull the trigger to start the tool; release it to stop.	After stopping to impact, tool stops [*] x 0.1 seconds later.	To loosen bolts.

Operation

MAINTENANCE

CAUTION:

CAUTION:

Always insert the battery cartridge all the way until it locks always be sure that the tool is switched off and the battery place. If you can see the red part on the upper side of the cartridge is removed before carrying out any work on the tool. button, it is not locked completely. Insert it fully until the red

part cannot be seen. If not, it may accidentally fall out of tool, causing injury to you or someone around you.

Replacement of carbon brushes (Fig. 10 & 11)

The proper fastening torque may differ depending upon the kind or size of the bolt, the material of the workpiece to be

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

fastened, etc. The relation between fastening torque and To maintain product safety and reliability, repairs, maintefastening time is shown in Fig. 8 for standard bolt or Fig. 9 or adjustment should be carried out by a Makita high tensile bolt. Hold the tool firmly and place the socket Averorized Service Center.

the bolt or nut. Turn the tool on and fasten for the proper fastening time.

[^*1] Presetting number of impacts is impossible for more than 200 impacts (4 seconds).

[2] Fastening time includes when you pull the trigger completely.

NOTE:

• When fastening screw M8 or smaller, carefully adjust pressure on the switch trigger so that the screw is not damaged.
• Hold the tool pointed straight at the bolt.
• If you fasten the bolt for a time longer than shown in the figure, the bolt or the socket may be overstressed, damaged, etc. Before starting your job, always perform a test operation to determine the proper fastening time for your bolt. Especially for the bolt other than M8, perform the above test operation to prevent the trouble on socket or bolt, etc.

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

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

for at fremme afkoling,

Reversbryter (Fig. 6)

NB!

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 Directeur

Direktor Director

MAKITA INTERNATIONAL EUROPE LTD.

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

PORTUGUES

DECLARACAO DE CONFORMIDADE DA CE

de accordo com as directivas 89/336/CEE e 98/37/CE do Conselho.

DANSK

EU-DEKLARATION OM KONFORMITET

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

Japan, erklærer hermed, at dette produit

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

(Serlal 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.

FRANÇAISE

DECLARATION DE CONFORMITE CE

J. Je soussigné, Yasuhiko Kanzaki, mandaté par Kao Lung, Tamura Electronics Co., Ltd. No. 4 Industry 1st Street, Li Tung industry District Chiao Nan Li, Ping Tung City, Taiwan declare que ce chargeur de batterie

El abajo firmante, Yasuhiko Kanzaki, autorizzato por Kao Lung Tamura Electronics Co., Ltd. No. 4 Industry 1st Street, Ping Tung Industry District Chiao Nan Li, Ping Tung City,

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

PORTUGUES

DECLARACAO DE CONFORMIDADE DA CE

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

DANSK

EU-DEKLARATION OM KONFORMITET

Undertegnede, Yasuhiko Kanzaki, med fuldmagt fra Kao Lung Tamura Electronics Co., Ltd. No. 4 Industry 1st Str Ping Tung Industry District Chiao Nan Li, Ping Tung City Taiwan, erklær hermed, at dette batteriopladeren

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

O unoypaaw, Yasuhiko Kanzaki, EouoiobotnEvoc ano Tnv etaipexia Kao Lung Tamura Electronics Co., Ltd. No. 4 Industry 1st Street, Ping Tung Industry District Chiao Nan Li, Ping Tung City, Taiwan, oTto auto to optiotncmuatapia

(AuEwAp: npaywyn oεiρac)

Kataokcuo evo ano tvn Etaipia Kao Lung Tamura Street, Electronics Co., Ltd. otnv Taiwan, pioketau oE ouqwvia e ta aokoloutheta npotuna n tuonnoiueva eyypapa,

Michigan Drive, Tongwell, Milton Keynes,

Bucks MK15 8JD, ENGLAND

ENGLISH

Noise And Vibration

The typical A-weighted noise levels are

sound pressure level: 90 dB (A)

sound power level: 103 dB (A)

• Wear ear protection. -

The typical weighted root mean square acceleration value is 7m / s

FRANÇAISE

Bruit et vibrations