Makita BGA452 User Manual

INSTRUCTION MANUAL MANUEL D'INSTRUCTION MANUAL DE INSTRUCCIONES

Cordless Angle Grinder Meuleuse angulaire sans fil Amoladora de disco a batería

BGA452

WARNING:

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

AVERTISSEMENT:

Pour votre propre sécurité, prière de lire attentivement avant l’utilisation. GARDER CES INSTRUCTIONS POUR RÉFÉRENCE ULTÉRIEURE.

ADVERTENCIA:

Para su seguridad personal, LEA DETENIDAMENTE este manual antes de usar la herramienta.

007214

ENGLISH

SPECIFICATIONS

Model BGA452

Wheel diameter 115mm (4-1/2”)

Spindle thread 5/8”

No load speed (RPM) 10,000/min

Overall length 317 mm (12-1/2”)

Net weight 1.9 kg (4.2 lbs)

Rated voltage D.C. 18V

Standard battery cartridge BL1830

• 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.

GENERAL SAFETY RULES

USA003-2

(FOR ALL BATTERY OPERATED TOOLS)

WARNING:

Read and understand all instructions.

Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury.

SAVE THESE INSTRUCTIONS

Work Area

1. Keep your work area clean and well lit. Cluttered

benches and dark areas invite accidents.

2. Do not operate power tools in explosive atmo-

spheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks

which may ignite the dust or fumes.

3. Keep bystanders, children, and visitors away

while operating a power tool. Distractions can

cause you to lose control.

Electrical Safety

4. A battery operated tool with integral batteries or

a separate battery pack must be recharged only with the specified charger for the battery. A

charger that may be suitable for one type of battery may create a risk of fire when used with another battery.

5. Use battery operated tool only with specifically

designated battery pack. Use of any other batter-

ies may create a risk of fire.

Personal Safety

6. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use tool while tired or under the influence of drugs, alcohol, or medication. A moment of inat-

tention while operating power tools may result in serious personal injury.

7. Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves away from moving parts. Loose

clothes, jewelry, or long hair can be caught in moving parts.

8. Avoid accidental starting. Be sure switch is in the locked or off position before inserting battery pack. Carrying tools with your finger on the

switch or inserting the battery pack into a tool with the switch on invites accidents.

9. Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that is left

attached to a rotating part of the tool may result in personal injury.

10. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance

enables better control of the tool in unexpected situations.

11. Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat, or

hearing protection must be used for appropriate conditions.

Tool Use and Care

12. Use clamps or other practical way to secure and support the workpiece to a stable platform. Hold-

ing the work by hand or against your body is unstable and may lead to loss of control.

13. Do not force tool. Use the correct tool for your application. The correct tool will do the job better

and safer at the rate for which it is designed.

14. Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled with the

switch is dangerous and must be repaired.

15. Disconnect battery pack from tool or place the switch in the locked or off position before making any adjustments, changing accessories, or storing the tool. Such preventive safety measures

reduce the risk of starting the tool accidentally.

16. Store idle tools out of reach of children and other untrained persons. Tools are dangerous in

the hands of untrained users.

17. 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 sparks, burns, or a fire.

18. Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained tools with

sharp cutting edges are less likely to bind and are easier to control.

19. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool’s operation. If damaged, have the tool serviced before using. Many acci-

dents are caused by poorly maintained tools.

20. Use only accessories that are recommended by the manufacturer for your model. Accessories

that may be suitable for one tool may create a risk of injury when used on another tool.

SERVICE

21. Tool service must be performed only by qualified repair personnel. Service or maintenance per-

formed by unqualified personnel could result in a risk of injury.

22. When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance section of this manual. Use of unau-

thorized parts or failure to follow Maintenance instructions may create a risk of shock or injury.

SPECIFIC SAFETY RULES

USB063-1

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.

1. Always use proper guard with grinding wheel. A

guard protects operator from broken wheel fragments.

2. Accessories must be rated for at least the speed recommended on the tool warning label. Wheels

and other accessories running over rated speed can fly apart and cause injury.

3. Hold tool by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live”

wire will make exposed metal parts of the tool “live” and shock the operator.

4. When using depressed center grinding wheels, be sure to use only fiberglass-reinforced wheels.

5. Always use safety glasses or goggles. Ordinary eye or sun glasses are NOT safety glasses.

6. Check the wheel carefully for cracks or damage before operation. Replace cracked or damaged wheel immediately. Run the tool (with guard) at no load for about a minute, holding tool away from others. If wheel is flawed, it will likely separate during this test.

7. Use only flanges specified for this tool.

8. 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.

9. NEVER use tool with wood cutting blades or other sawblades. Such blades when used on a grinder frequently kick and cause loss of control leading to personal injury.

10. Hold the tool firmly.

11. Keep hands away from rotating parts.

12. Make sure the wheel is not contacting the workpiece before the switch is turned on.

13. 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.

14. Use the specified surface of the wheel to perform the grinding.

15. Watch out for flying sparks. Hold the tool so that sparks fly away from you and other persons or flammable materials.

16. Do not leave the tool running. Operate the tool only when hand-held.

17. Do not touch the workpiece immediately after operation; it may be extremely hot and could burn your skin.

18. ALWAYS wear proper apparel including long sleeve shirts, leather gloves and shop aprons to protect skin from contact with hot grindings.

19. Use of this tool to grind or sand some products, paints and wood could expose user to dust containing hazardous substances. Use appropriate respiratory protection.

SAVE THESE INSTRUCTIONS

WARNING:

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

SYMBOLS

The followings show the symbols used for tool.

V............................volts

.......................direct current

.......................no load speed

.../min....................revolutions or reciprocation per

minute

USD301-1

ENC007-2

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 con-

ductive material.

(2) Avoid storing battery cartridge in a con-

tainer 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°C (122°F).

7. Do not incinerate the battery cartridge even if it is severely damaged or is completely worn out. The battery cartridge can explode in a fire.

8. 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°C - 40°C (50°F - 104°F). 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

• 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 car-

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

007215

1. Button

2. Red part

3. Battery cartridge

Shaft lock

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

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.

• Switch can be locked in “ON” position for ease of

operator comfort during extended use. Apply caution when locking tool in “ON” position and maintain firm grasp on tool.

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

007216

1. Shaft lock

007217

1. Slide switch

007224

1. Indication lamp

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)

007225

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

007218

1. Wheel guard

2. Bearing box

3. Screw

2 3

CAUTION:

• When using a depressed center grinding wheel/

Multi-disc, 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

1 2

007219

1. Lock nut

2. Depressed cen-

3. Inner flange

ter grinding wheel/Multi-disc

007220

1. Lock nut wrench

2. Shaft lock

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

Installing or removing diamond wheel (optional accessory)

CAUTION:

• Always install the wheel guard before installing the

diamond wheel.

• When mounting the wheel ensure that the arrow

(indicating the direction of rotation) on the wheel is pointing in the same direction as the arrow for rotation provided on the tool.

Mount the inner flange onto the spindle so that the side of the inner flange with the 7/8” diameter protrusion faces the diamond wheel. Place the diamond wheel onto the inner flange making sure the protrusion fits into the arbor of the wheel. Use the lock nut to secure the wheel by placing it on the spindle so that the flat side faces the wheel 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.

1 2

7/8"

007238

1. Lock nut

2. Diamond wheel

3. Inner flange

4. Spindle

WARNIN G:

• 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.

Installing or removing flex wheel (optional accessory)

007241

1 2

3 4

1. Lock nut

2. Flex wheel

3. Plastic pad

4. Inner flange

WARNIN G:

• Always use supplied guard when flex wheel is on

tool. Wheel can shatter during use and guard helps to reduce chances of personal injury.

Follow instructions for depressed center grinding wheel/ Multi-disc but also use plastic pad over wheel. See order of assembly on accessories page in this manual.

Installing or removing abrasive disc (optional accessory)

NOTE:

• Use sander accessories specified in this manual.

These must be purchased separately.

Mount the rubber pad onto the spindle. Fit the disc on the rubber pad 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.

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

007240

1 2

1. Lock nut

2. Abrasive disc

3. Rubber pad

OPERATION

WARNIN G:

• 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 5 mm. 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

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.

007221

Operation with diamond wheel (optional accessory )

CAUTION:

• Do not “jam” the wheel or apply excessive pres-

sure. 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, wheel breakage and overheating of the motor may occur.

• Do not start the cutting operation in the workpiece.

Let the wheel reach full speed and carefully enter into the cut moving the tool forward over the workpiece surface. The wheel may bind, walk up or kickback if the power tool is started in the workpiece.

• A diamond wheel shall be operated perpendicular

to the material being cut.

Operation with wire cup brush (optional accessory)

CAUTION:

• Check operation of brush by running tool with no

load, insuring that no one is in front of or in line with brush.

• Do not use brush that is damaged, or which is out

of balance. Use of damaged brush could increase potential for injury from contact with broken brush wires.

Remove the battery cartridge from the tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread wire cup brush onto spindle and tighten with supplied wrench. When using brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage.

007242

1. Wire cup brush

Operation with wire wheel brush (optional accessory)

007243

1. Wire wheel brush

onto spindle and tighten with the wrenches. When using wire wheel brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage.

Operation with abrasive cut-off wheel

WARNIN G:

• When using an abrasive cut-off wheel, be sure to

use only the special wheel guard designed for use with cut-off wheels.

• NEVER use cut-off wheel for side grinding.

• Do not “jam” the wheel or apply excessive pres-

• Do not start the cutting operation in the workpiece.

• During cutting operations, never change the angle

of the wheel. Placing side pressure on the cut-off wheel (as in grinding) will cause the wheel to crack and break, causing serious personal injury.

007244

1 2 3

1. Lock nut

2. Abrasive cut-off wheel

3. Inner flange

4. Wheel guard for cut-off wheel

CAUTION:

• Check operation of wire wheel brush by running

tool with no load, insuring that no one is in front of or in line with the wire wheel brush.

• Do not use wire wheel brush that is damaged, or

which is out of balance. Use of damaged wire wheel brush could increase potential for injury from contact with broken wires.

• ALWAYS use guard with wire wheel brushes,

assuring diameter of wheel fits inside guard. Wheel can shatter during use and guard helps to reduce chances of personal injury.

Remove the battery cartridge from the tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread wire wheel brush

MAINTENANCE

CAUTION:

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

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

007222

1. Exhaust vent

2. Inhalation vent

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

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.

001145

1. Limit mark

007226

1. Holder cap cover

2. Screwdriver

ACCESSORIES

CAUTION:

• These accessories or attachments are recom-

mended 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.

• Your tool is supplied with a guard for use with a

depressed center grinding wheel, multi-disc, diamond wheel, flex wheel and wire wheel brush. A cut-off wheel can also be used with an optional guard. If you decide to use your Makita grinder with approved accessories which you purchase from your Makita distributor or factory service center, be sure to obtain and use all necessary fasteners and guards as recommended in this manual. Your failure to do so could result in personal injury to you and others.

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

• Various type of Makita genuine batteries and charg-

ers

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.

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 or Factory Service Centers, always using Makita replacement parts.

007223

1. Brush holder cap

2. Screwdriver

007245

2 3

4-1/2" Depressed center grinding wheel/4-1/2" Multi-disc/4-1/2"Diamond wheel

5 6

8 9

10 11

Wheel gurad

Inner flange 45

Lock nut 5/8-45

Rubber pad 100

Abrasive disc

Sanding lock nut 5/8-48

Wire wheel brush

Grip 36

N/A

12 13

Wire cup brush

Wheel guard (For cut-off wheel)

Cut-off wheel

Lock nut wrench 28

MAKITA LIMITED ONE YEAR WARRANTY

EN0006-1

Warranty Policy

Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to be free of defects from workmanship and materials for the period of ONE YEAR from the date of original purchase. Should any trouble develop during this one year period, return the COMPLETE tool, freight prepaid, to one of Makita’s Factory or Authorized Service Centers. If inspection shows the trouble is caused by defective workmanship or material, Makita will repair (or at our option, replace) without charge.

This Warranty does not apply where:

• repairs have been made or attempted by others:

• repairs are required because of normal wear and

tear:

• the tool has been abused, misused or improperly

maintained:

• alterations have been made to the tool.

IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM THE SALE OR USE OF THE PRODUCT. THIS DISCLAIMER APPLIES BOTH DURING AND AFTER THE TERM OF THIS WARRANTY.

MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF “MERCHANTABILITY” AND “FITNESS FOR A SPECIFIC PURPOSE,” AFTER THE ONE YEAR TERM OF THIS WARRANTY.

This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.

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