BGA402 - Grinders MAKITA - Free user manual and instructions

Frequently Asked Questions - BGA402 MAKITA

USER MANUAL BGA402 MAKITA

GB Cordless Angle Grinding Instruction manual

F Meuleuse d'angle sans fil Manuel d'instructions
D Akku-Winkelschleifer Betriebsanleitung

Explanation of general view

1.	Button	8. Bearing box	14. Exhaust vent
2.	Red part	9. Screw	15. Inhalation vent
3.	Battery cartridge	10. Lock nut	16. Limit mark
4.	Shaft lock	11. Depressed center grinding wheel/ Multi-disc	17. Holder cap cover
5.	Slide switch		18. Screwdriver
6.	Indication lamp	12. Inner flange	19. Brush holder cap
7.	Wheel guard	13. Lock nut wrench

SPECIFICATIONS

Model BGA402 BGA450 BGA4	52
Wheel diameter 100 mm 115 mm
Spindle thread M10	M14
Rated speed (n) / No load speed (n0)	10,000 (min-1)
Overall length	317 mm
Net weight	2.2 kg	2.2 kg	2.3 kg
Rated voltage	D.C. 18 V	D.C. 14.4 V	D.C. 18 V

• 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.
  Weight, with battery cartridge, according to EPTA-Procedure 01/2003

Intended use

ENE048-1

The tool is intended for grinding, sanding and cutting of metal and stone materials without the use of water.

SPECIFIC SAFETY RULES GEB033-2

DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to grinder safety rules. If you use this tool unsafely or incorrectly, you can suffer serious personal injury. SafetyWarnings Common for Grinding, Sanding, Wire Brushing, or Abrasive Cutting-Off Operations:

1. This power tool is intended to function as a grinder, sander, wire brush or cut-off tool. 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.
2. Operations such as polishing are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.
3. Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
4. The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.
5. The outside diameter and the thickness of your accessory must be within the capacity rating of

your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.

1. The arbour size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.
2. Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.
3. Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.
4. Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of

workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

1. Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live" and shock the operator.
2. Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.
3. Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.
4. Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.
5. Regularly clean the power tool's air vents. The motor's fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.
6. Do not operate the power tool near flammable materials. Sparks could ignite these materials.
7. Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Kickback and RelatedWarnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory's rotation at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel's movement at the point of pinching. Abrasive wheels may also break under these conditions.

Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

a) Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or kickback forces, if proper precautions are taken.
b) Never place your hand near the rotating accessory. Accessory may kickback over your hand.
c) Do not position your body in the area where power tool will move if kickback occurs. Kickback

will propel the tool in direction opposite to the wheel's movement at the point of snagging.

d) Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.
e) Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control.

SafetyWarnings Specific for Grinding and Abrasive Cutting-Off Operations:

a) Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel. Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.
b) The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The guard helps to protect operator from broken wheel fragments and accidental contact with wheel.
c) Wheels must be used only for recommended applications. For example: do not grind with the side of cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
d) Always use undamaged wheel flanges that are of correct size and shape for your selected wheel. Proper wheel flanges support the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.
e) Do not use worn down wheels from larger power tools. Wheel intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

Additional SafetyWarnings Specific for Abrasive Cutting-Off Operations:

a) Do not "jam" the cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage.
b) Do not position your body in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.
c) When wheel is binding or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate and take corrective action to eliminate the cause of wheel binding.
d) Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully reenter the cut. The wheel may bind, walk

up or kickback if the power tool is restarted in the workpiece.

e) Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
f) Use extra caution when making a "pocket cut" into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

SafetyWarnings Specific for Sanding Operations:

a) Do not use excessively oversized sanding disc paper. Follow manufacturers recommendations, when selecting sanding paper. Larger sanding paper extending beyond the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc or kickback.

SafetyWarnings Specific for Wire Brushing

Operations:

a) Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not overstress the wires by applying excessive load to the brush. The wire bristles can easily penetrate light clothing and/or skin.
b) If the use of a guard is recommended for wire brushing, do not allow interference of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due to work load and centrifugal forces.

Additional safety warnings:

1. When using depressed center grinding wheels, be sure to use only fiberglass-reinforced wheels.
2. Be careful not to damage the spindle, the flange (especially the installing surface) or the lock nut. Damage to these parts could result in wheel breakage.
3. Make sure the wheel is not contacting the workpiece before the switch is turned on.
4. Before using the tool on an actual workpiece, let it run for a while. Watch for vibration or wobbling that could indicate poor installation or a poorly balanced wheel.
5. Use the specified surface of the wheel to perform the grinding.
6. Watch out for flying sparks. Hold the tool so that sparks fly away from you and other persons or flammable materials.
7. Do not leave the tool running. Operate the tool only when hand-held.
8. Do not touch the workpiece immediately after operation; it may be extremely hot and could burn your skin.
9. Always be sure that the tool is switched off and unplugged or that the battery cartridge is removed before carrying out any work on the tool.

10. Observe the instructions of the manufacturer for correct mounting and use of wheels. Handle and store wheels with care.

11. Do not use separate reducing bushings or adaptors to adapt large hole abrasive wheels.

12. Use only flanges specified for this tool.
13. For tools intended to be fitted with threaded hole wheel, ensure that the thread in the wheel is long enough to accept the spindle length.
14. Check that the workpiece is properly supported.
15. Pay attention that the wheel continues to rotate after the tool is switched off.
16. If working place is extremely hot and humid, or badly polluted by conductive dust, use a short-circuit breaker (30 mA) to assure operator safety.
17. Do not use the tool on any materials containing asbestos.
18. Do not use water or grinding lubricant.
19. Ensure that ventilation openings are kept clear when working in dusty conditions. If it should become necessary to clear dust, first disconnect the tool from the mains supply (use non metallic objects) and avoid damaging internal parts.
20. When use cut-off wheel, always work with the dust collecting wheel guard required by domestic regulation.
21. Cutting discs must not be subjected to any lateral pressure.

WARNING:

MISUSE or failure to follow the safety rules stated in this instruction manual may cause serious personal injury.

SAVE THESE INSTRUCTIONS.

IMPORTANT SAFETY INSTRUCTIONS

ENC007-4

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.

1. Do not store the tool and battery cartridge in locations where the temperature may reach or exceed 50^ (122^) .
2. 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.
3. Be careful not to drop or strike battery.
4. Do not use dropped or struck 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^ - 40^ (50^ - 104^) . Let a hot battery cartridge cool down before charging it.

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 (Fig. 1)

• Always switch off the tool before insertion 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.

Shaft lock (Fig. 2)

CAUTION:

• Never actuate the shaft lock when the spindle is moving. The tool may be damaged.

Press the shaft lock to prevent spindle rotation when installing or removing accessories.

Switch action (Fig. 3)

CAUTION:

• Before inserting the battery cartridge into the tool, always check to see that the slide switch actuates properly and returns to the "OFF" position when the rear of the slide switch is depressed.

To start the tool, slide the slide switch toward the "I (ON)" position. For continuous operation, press the front of the slide switch to lock it.

To stop the tool, press the rear of the slide switch, then slide it toward the "O (OFF)" position.

Indication lamp with multi function (Fig. 4)

Indication lamps are located in two positions.

When the battery cartridge is inserted on the tool with the slide switch positioned in the "O (OFF)" position, the indication lamp flickers quickly for approximately one second. If it does not flicker so, the battery cartridge or indication lamp has broken.

- Overload protection

• When the tool is overloaded, the indication lamp lights up. When the load on the tool is reduced, the lamp goes out.
• If the tool continues to be overloaded and the indication lamp continues to light up for approximately two seconds, the tool stops. This prevents the motor and its related parts from being damaged.
• In this case, to start the tool again, move the slide switch to the "O (OFF)" position once and then to the "I (ON)" position.

- Battery cartridge replacing signal

• When the remaining battery capacity gets small, the indicator lamp lights up during operation earlier than enough capacity battery use.

- Accidental re-start preventive function

• Even if the battery cartridge is inserted on the tool with the slide switch in the "I (ON)" position, the tool does not start. At this time, the lamp flickers slowly and this shows that the accidental re-start preventive function is at work.
• To start the tool, first slide the slide switch toward the "O (OFF)" position and then slide it toward the "I (ON)" position.

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.

Installing side grip (handle) (Fig. 5)

CAUTION:

• Always be sure that the side grip is installed securely before operation.

Screw the side grip securely on the position of the tool as shown in the figure.

Installing or removing wheel guard (Fig. 6)

CAUTION:

• When using a depressed center grinding wheel/Multidisc, flex wheel, wire wheel brush, cut-off wheel or diamond wheel, the wheel guard must be fitted on the tool so that the closed side of the guard always points toward the operator.

Mount the wheel guard with the protrusion on the wheel guard band aligned with the notch on the bearing box.

Then rotate the wheel guard around 180 degrees. Be sure to tighten the screw securely.

To remove wheel guard, follow the installation procedure in reverse.

Installing or removing depressed center grinding wheel/Multi-disc (Fig. 7)

WARNING:

• Always use supplied guard when depressed center grinding wheel/Multi-disc is on tool. Wheel can shatter during use and guard helps to reduce chances of personal injury.

Mount the inner flange onto the spindle. Fit the wheel/disc on the inner flange and screw the lock nut onto the spindle.

To tighten the lock nut, press the shaft lock firmly so that the spindle cannot revolve, then use the lock nut wrench and securely tighten clockwise. (Fig. 8)

To remove the wheel, follow the installation procedure in reverse.

WARNING:

• Only actuate the shaft lock when the spindle is not moving.

OPERATION

WARNING:

• It should never be necessary to force the tool. The weight of the tool applies adequate pressure. Forcing and excessive pressure could cause dangerous wheel breakage.
• ALWAYS replace wheel if tool is dropped while grinding.
• NEVER bang or hit grinding disc or wheel onto work.
• Avoid bouncing and snagging the wheel, especially when working corners, sharp edges etc. This can cause loss of control and kickback.
• NEVER use tool with wood cutting blades and other sawblades. Such blades when used on a grinder frequently kick and cause loss of control leading to personal injury.

CAUTION:

• Make the depth of a single cut up to 5mm . Adjust pressure on the tool so that the tool does not slow down during the operation.

• After operation, always switch off the tool and wait until the wheel has come to a complete stop before putting the tool down.

• 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.

Grinding and sanding operation (Fig. 9)

ALWAYS hold the tool firmly with one hand on housing and the other on the side handle. Turn the tool on and then apply the wheel or disc to the workpiece.

In general, keep the edge of the wheel or disc at an angle of about 15 degrees to the workpiece surface.

During the break-in period with a new wheel, do not work the grinder in the B direction or it will cut into the workpiece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both A and B direction.

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and the battery cartridge is removed before attempting to perform inspection or maintenance. (Fig. 10)

The tool and its air vents have to be kept clean. Regularly clean the tool's air vents or whenever the vents start to become obstructed.

Replacing carbon brushes (Fig. 11)

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.

Insert the top end of slotted bit screwdriver into the notch in the tool and remove the holder cap cover by lifting it up. (Fig. 12)

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. (Fig. 13)

Reinstall the holder cap cover on the tool.

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.
• Wheel guard (Wheel cover)
• Inner flange
  Depressed center wheels

• Lock nut (For depressed center wheel)
  Rubber pad

• Abrasive discs

• Lock nut (For abrasive disc)
• Lock nut wrench
  Wire cup brush
  Wire bevel brush 85
• Side grip
• Dust collecting wheel guard
  Diamond wheel
• Various type of Makita genuine batteries and chargers

For Model BGA450

ENG104-2

Noise

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

Sound pressure level (L_pA) : 74 dB (A)

Uncertainty (K): 3 dB (A)

The noise level under working may exceed 80 dB (A).

Wear ear protection.

Vibration

ENG208-4

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

Work mode: surface grinding

Vibration emission (a_h,AG) .. 8.5m / s^2

Uncertainty (K): 1.5m / s^2

If the tool is used for other applications, the vibration values may be different.

ENG312-1

Work mode: disc sanding

Vibration emission (a_h,SG) .. 2.5m / s^2 or less

Uncertainty (K): 1.5m / s^2

For Model BGA452

ENG104-2

Noise

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

Sound pressure level (L_pA) : 73 dB (A)

Uncertainty (K): 3 dB (A)

The noise level under working may exceed 80 dB (A).

Wear ear protection.

Vibration

ENG208-4

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

Work mode: surface grinding

Vibration emission (a_h,AG) .. 8.5m / s^2

Uncertainty (K): 1.5m / s^2

If the tool is used for other applications, the vibration values may be different.

For European countries only

ENH101-13

EC Declaration of Conformity

We Makita Corporation as the responsible manufacturer declare that the following Makita machine(s):

Designation of Machine: Cordless Angle Grinding

Model No./ Type: BGA450, BGA452

are of series production and

Conforms to the following European Directives:

98/37/EC until 28th December 2009 and then with

2006/42/EC from 29th December 2009

And are manufactured in accordance with the following standards or standardised documents:

EN60745

The technical documentation is kept by our authorised representative in Europe who is:

Makita International Europe Ltd.,

Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, England

30th January 2009

Tomoyasu Kato

Director

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

FRANÇAIS

Descriptif

Makita International Europe Ltd., Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, Angleterre

30 janvier 2009

Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, England

1. Januar 2009

Tomoyasu Kato Direktor

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

ITALIANO

Makita International Europe Ltd., Michigan, Drive, Tongwell, Milton Keynes, MK15 8JD, Inghilterra

30 gennaio 2009

Michigan Drive, Tongwell,

Milton Keynes, MK15 8JD, England

30 januari 2009

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

ESPANOL

Tomoyasu Kato Director

Makita Corporation

3-11-8, Sumiyoshi-cho, Anjo, Aichi, JAPAN

PORTUGUES

Descrição geral

Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, England

30 de Janeiro de 2009

Tomoyasu Kato

Director

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

DANSK

Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, England

1. januar 2009

Tomoyasu Kato

Direktør

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

EAAHNIKA

NepiypaΦn yevikns oyns

1. Koumu

2. Bioda

3. Avoiya eiofoou aepa

4. Kokkivo Tmu

5. Naigmuabi kAeiodwauTOC

6. Evδειη npoiou

7. Mttatapia

8. Tpoxoc tpoxioaTOXaunawmuevou Kevtpou/ PlouiaKoC

9. KaIuμa KaTnAIOU UTOOoxNc

10. Kλειδωμα αξονα

11. Katoaβiδ

12. Kuλióμενος διακότπης

13. KaTaki UToDoxnS Yia To KapBouvaki

14. Evöεικική λυχία

15. Poootataeutiko tpoxou

16. KIβωTIO pouλεμαν

17. EoWTepiKn Avtzα

18. Kλειδί παξιμαιδίου κλειδωματος
19. Avoivma xóobou aépa

TEXNIKA XAPAKTHPIIETIKA

aTOTeAouv Tnpaywyn Oe eipka Kai

Euupopovovtai e tis akoloutheta Eupwtaikcs

OsnyieS:

98/37/EK TnV 28n 2009 ka

Michigan, Drive, Tongwell,

Milton Keynes, MK15 8JD, England

30η lavouapiou 2009

Tomoyasu Kato

△ieuOuvns

Makita Corporation

3-11-8, Sumiyoshi-cho,

Anjo, Aichi, JAPAN

Makita Corporation

Anjo, Aichi, Japan

884662C997