Makita GA9050R, GA7050R, GA9050, GA7050 User Manual

INSTRUCTION MANUAL MANUEL D'INSTRUCTION MANUAL DE INSTRUCCIONES

Angle Grinder Meuleuse d'Angle Esmeriladora Angular

GA7050 GA7050R GA9050 GA9050R

IMPORTANT: Read Before Using. IMPORTANT: Lire avant usage. IMPORTANTE: Leer antes de usar.

010638

DOUBLE INSULATION DOUBLE ISOLATION DOBLE AISLAMIENTO

ENGLISH (Original instructions)

SPECIFICATIONS

Model GA7050 GA7050R GA9050 GA9050R

Wheel diameter 180 mm (7") 180 mm (7") 230 mm (9") 230 mm (9")

Max. wheel thickness 6.5 mm (1/4")

Spindle thread 15.87 mm (5/8") 15.87 mm (5/8") 15.87 mm (5/8") 15.87 mm (5/8")

Rated speed (n) / No load speed (n0) 8,500 /min 8,500 /min 6,600 /min 6,600 /min

• 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 according to EPTA-Procedure 01/2003

General Power Tool Safety Warnings

WARNING Read all safety warnings and all

instructions. Failure to follow the warnings and

instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

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

dark areas invite accidents.

2. Do not operate power tools in explosive

atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools

create sparks which may ignite the dust or fumes.

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

Electrical safety

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

reduce risk of electric shock.

5. Avoid body contact with earthed or grounded

surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of

electric shock if your body is earthed or grounded.

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

7. Do not abuse the cord. Never use the cord for

carrying, pulling or unplugging the power tool.

Overall length 432 mm (17")

Net weight 4.5 kg (9.9 lbs) 4.6 kg (10.1 lbs) 4.7 kg (10.4 lbs) 4.8 kg (10.6 lbs)

GEA008-2

455 mm (17-7/8")

Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords

increase the risk of electric shock.

8. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.

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

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

GFCI reduces the risk of electric shock.

Personal safety

10.

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

moment of inattention while operating power tools may result in serious personal injury.

11. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

12. Prevent unintentional starting. Ensure the

switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools

with your finger on the switch or energising power tools that have the switch on invites accidents.

13. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.

14. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.

15.

Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts.

or long hair can be caught in moving parts.

432 mm (17")

Loose clothes, jewellery

455 mm (17-7/8")

16.

If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used.

Use of

dust collection can reduce dust-related hazards.

Power tool use and care

17. Do not force the power tool. Use the correct power tool for your application. The correct

power tool will do the job better and safer at the rate for which it was designed.

18. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

19. Disconnect the plug from the power source

and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such

preventive safety measures reduce the risk of starting the power tool accidentally.

20. Store idle power tools out of the reach of

children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are

dangerous in the hands of untrained users.

21. Maintain power tools. Check for misalignment

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

are caused by poorly maintained power tools.

Table 1: Minimum gage for cord

22. Keep cutting tools sharp and clean. Properly

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

23. Use the power tool, accessories and tool bits

etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power

tool for operations different from those intended could result in a hazardous situation.

Service

24. Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power

tool is maintained.

25. Follow instruction for lubricating and

changing accessories.

26. Keep handles dry, clean and free from oil and grease.

USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Table 1 shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

Volts

Ampere Rating

120V 25 ft. 50 ft. 100 ft. 150 ft.

220V - 240V 50 ft. 100 ft. 200 ft. 300 ft.

More Than Not More Than

000300

GEB033-9

GRINDER SAFETY WARNINGS

Safety Warnings 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

Total length of cord in feet

AWG

16 16 14

1416

Not Recommended

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.

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.

6. Threaded mounting of accessories must

match the grinder spindle thread. For accessories mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange. Accessories that do not

match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

7. 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.

8. 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.

9. 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.

10. Hold the 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 could give the operator an electric shock.

11. 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.

12. 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.

13. 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.

14. 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.

15. Do not operate the power tool near flammable materials. Sparks could ignite these materials.

16. Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Kickback and Related Warnings 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.

Safety Warnings 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 grinding surface of centre depressed

wheels must be mounted below the plane of the guard lip. An improperly mounted wheel that

projects through the plane of the guard lip cannot be adequately protected. c) 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

the operator from broken wheel fragments, accidental contact with wheel and sparks that could ignite clothing. d)

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. e) 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. f) 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 Safety Warnings 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.

Safety Warnings 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.

Safety Warnings 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 any 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:

17. When using depressed centre grinding wheels, be sure to use only fiberglass-reinforced wheels.

18. NEVER USE Stone Cup type wheels with this grinder. This grinder is not designed for these

types of wheels and the use of such a product may result in serious personal injury.

19. 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.

20. Make sure the wheel is not contacting the

workpiece before the switch is turned on.

21. 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.

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

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

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

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

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

27. Use only flanges specified for this tool.

28. 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.

29. Check that the workpiece is properly supported.

30. Pay attention that the wheel continues to rotate after the tool is switched off.

31. 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.

32. Do not use the tool on any materials containing asbestos.

33. When use cut-off wheel, always work with the dust collecting wheel guard required by domestic regulation.

34. Cutting discs must not be subjected to any lateral pressure.

35. Do not use cloth work gloves during operation. Fibers from cloth gloves may enter the tool, which causes tool breakage.

SAVE THESE INSTRUCTIONS.

WARNING:

DO NOT let comfort or familiarity with product (gained from repeated use) replace strict adherence to safety rules for the subject product. 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.

･ volts

･ amperes

･ hertz

･ alternating current

･ alternating or direct current

･ rated speed

･ no load speed

･ Class II Construction

･ revolutions or reciprocation per minute

USD292-3

FUNCTIONAL DESCRIPTION

CAUTION:

• Always be sure that the tool is switched off and

unplugged before adjusting or checking function on the tool.

Shaft lock

CAUTION:

• Never actuate the shaft lock when the spindle is

moving. The tool may be damaged.

010639

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

Switch action

CAUTION:

• Before plugging in the tool, always check to see

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

1. Shaft lock

1. Switch trigger

2. Lock lever

For tool with the lock-off switch

CAUTION:

• Do not pull the switch trigger hard without

pressing in the lock-off button. This can cause

For tool with the lock on and lock-off switch

CAUTION:

• Do not pull the switch trigger hard without

pressing in the lock-off button. This can cause

switch breakage. To prevent the switch trigger from accidentally pulled, a lock lever is provided. To start the tool, push in the lock lever (in the A direction) and then pull the switch trigger (in the B direction). Release the switch trigger to stop. For continuous operation, push in the lock lever (in the A direction), pull the switch trigger (in the B direction) and then pull the lock lever (in the C direction). To stop the tool from the locked position, pull the switch trigger fully (in the B direction), then release it.

Indication lamp (For model GA7050R/GA9050R)

1. Indication lamp

010640

For tool with the lock-on switch

CAUTION:

• 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, simply pull the switch trigger (in the B direction). Release the switch trigger to stop. For continuous operation, pull the switch trigger (in the B direction) and then push in the lock lever (in the A direction). To stop the tool from the locked position, pull the switch trigger fully (in the B direction), then release it.

010864

The indication lamp lights up green when the tool is plugged. If the indication lamp does not light up, the mains cord or the controller may be defective. The indication lamp is lit but the tool does not start even if the tool is switched on, the carbon brushes may be worn out, or the controller, the motor or the ON/OFF switch may be defective.

Unintentional restart proof

Even locking lever keeping the switch trigger depressed (Lock-on position) does not allow the tool to restart even when the tool is plugged. At this time, the indication lamp flickers red and shows the unintentional restart proof device is on function. To cancel the unintentional restart proof, pull the switch trigger fully, then release it.

Soft start feature

These models begin to run slowly when they are turned on. This soft start feature assures smoother operation.

ASSEMBLY

CAUTION:

•

Always be sure that the tool is switched off and

unplugged before carrying out any work on the

tool.

Installing side grip (handle)

CAUTION:

• Always be sure that the side grip is installed

securely before operation.

For tool with clamp lever type wheel guard

010644

1. Wheel guard

2. Bearing box

3. Nut

4. Lever

1. Nut

2. Lever

010642

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

Installing or removing wheel guard (For depressed center wheel , multi disc , wire wheel brush )

WARNING:

• When using a depressed center grinding

wheel/Multi-disc, flex wheel or wire wheel brush,

the wheel guard must be fitted on the tool so that

the closed side of the guard always points toward

the operator.

For tool with locking screw type wheel guard

010643

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 counterclockwise. Be sure to tighten the screw securely. To remove wheel guard, follow the installation procedure in reverse.

1. Wheel guard

2. Bearing box

3. Screw

010645

Loosen the lever on the wheel guard. 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 to the position shown in the figure. Tighten the lever to fasten the wheel guard. If the lever is too tight or too loose to fasten the wheel guard, loosen or tighten the nut to adjust the tightening of the wheel guard band. To remove wheel guard, follow the installation procedure in reverse.

Installing or removing depressed center grinding wheel/Multi-disc (accessory)

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.

1 2

010656

Mount the inner flange onto the spindle. Fit the wheel/disc on the inner flange and screw the lock nut with its protrusion facing downward (facing toward the wheel).

WARNING:

•

Never use a more than 6.5 mm thick grinding wheel.

1. Lock nut

2. Depressed center grinding wheel/Multi-disc

3. Inner flange

NOTE:

• In countries other than United States and Canada,

Inner flange 45 can be also used. 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.

010647

1. Lock nut wrench

2. Shaft lock

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

Installing or removing flex wheel (optional accessory)

WARNING:

• Always use supplied guard when flex wheel is on

tool. Wheel can shatter during use and guard helps

to reduce chances of personal injury.

1 2 3 4

010657

1. Lock nut

2. Flex wheel

3. Plastic pad

4. Inner flange

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.

010658

1. Lock nut

2. Abrasive disc

3. Rubber pad

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.

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:

• Never switch on the tool when it is in contact with

the workpiece, it may cause an injury to operator.

• Always wear safety goggles or a face shield during

operation.

• After operation, always switch off the tool and wait

until the wheel has come to a complete stop before putting the tool down.

Grinding and sanding operation

15°

010648

ALWAYS hold the tool firmly with one hand on rear handle 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.

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.

1. Wire cup brush

2. Urethane washer

010660

Unplug tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Mount urethane washer then 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.

NOTE:

• When using wire cup brush, mount urethane

washer to the spindle. It will make it easier to remove wire cup brush.

Operation with wire wheel brush (optional accessory)

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.

1. Wire wheel

010659

brush

Unplug tool and place it upside down allowing easy access to spindle. Remove any accessories on spindle. Thread 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 / diamond wheel (optional accessory)

WARNING:

• When using an abrasive cut-off / diamond wheel,

be sure to use only the special wheel guard designed for use with cut-off wheels. (In some European countries, when using a diamond wheel, the ordinary guard can be used. Follow the regulations in your country.)

• NEVER use cut-off wheel for side grinding.

•

Do not "jam" the 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, 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.

• 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.

• A diamond wheel shall be operated perpendicular

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

1 2 3

010828

1. Lock nut

2. Abrasive cut-off wheel/diamond wheel

3. Inner flange

4. Wheel guard for abrasive cut-off wheel/diamond wheel

For United States and Canada

Installing or removing abrasive cut-off wheel/ diamond wheel (optional accessory)

1. Lock nut

2. Outer flange 78

3. Abrasive cut-off wheel/diamond wheel

4. Inner flange 78

5. Wheel guard for abrasive cut-off wheel/diamond wheel

When the resin insulating tip inside the carbon brush is exposed to contact the commutator, it will automatically shut off the motor. When this occurs, both carbon brushes should be replaced. Keep the carbon brushes clean and free to slip in the holders. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes. Use a screwdriver to remove the brush holder caps. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.

1. Brush holder cap

2. Screwdriver

010946

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or maintenance.

•

Never use gasoline, benzine, thinner, alcohol or the like. Discoloration, deformation or cracks may result.

010653

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

001146

1. Exhaust vent

2. Inhalation vent

1. Commutator

2. Insulating tip

3. Carbon brush

010649

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.

OPTIONAL 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.

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

recommended grinding wheel, multi-disc, flex wheel and wire wheel brush. If a diamond wheel and/or cut-off wheel are also available for use with the tool, they should only be used with the appropriate optional guard for cut-off wheels. 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.

015774

12 14

*1 In countries other than United States and Canada, Inner flange 45 can be also used. *2 Use inner flange 78 and outer flange 78 together (United States and Canada only).

Inner flange 45 / Inner flange 78 (United States and Canada only)*2

Inner flange 45 / Inner flange 89 *1

Depressed center grinding wheel / Multi-disc

Wheel guard (for abrasive cut-off / diamond wheel)

Abrasive cut-off wheel / Diamond wheel

Outer flange 78 (United States and Canada only) *2

Side grip

Wheel guard

Lock nut 5/8 - 45

Back up pad

Flex wheel

Rubber pad 170

Abrasive disc

Sanding lock nut 5/8 - 48

Wire wheel brush

Urethane washer 14

Wire cup brush

Lock nut wrench 28

NOTE:

• Some items in the list may be included in the tool

package as standard accessories. They may differ from country to country.

MAKITA LIMITED ONE YEAR WARRANTY

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.

EN0006-1

FRANÇAIS (Mode d’emploi original)

SPÉCIFICATIONS

Modèle GA7050 GA7050R GA9050 GA9050R

Diamètre de la meule 180 mm (7") 180 mm (7") 230 mm (9") 230 mm (9")

Épaisseur max. meule 6,5 mm (1/4")

Vitesse nominale (n) / Vitesse à vide (n0) 8 500 /min 8 500 /min 6 600 /min 6 600 /min

• Étant donné l'évolution constante de notre programme de recherche et de développement, les spécifications contenues dans ce manuel sont sujettes à modification sans préavis.

• Les spécifications peuvent varier suivant les pays.

• Poids conforme à la procédure EPTA du 01/2003

Consignes de sécurité générales pour outils électriques

MISE EN GARDE Veuillez lire toutes les mises en

garde de sécurité et toutes les instructions.

L'ignorance des mises en garde et des instructions comporte un risque de choc électrique, d'incendie et/ou de blessure grave.

Conservez toutes les mises en garde et instructions pour référence future.

Le terme ≪ outil électrique ≫ qui figure dans les avertissements fait référence à un outil électrique branché sur une prise de courant (par un cordon d'alimentation) ou alimenté par batterie (sans fil).

Sécurité de la zone de travail

1. Maintenez la zone de travail propre et bien

2. N'utilisez pas les outils électriques dans les

3. Assurez-vous qu'aucun enfant ou curieux ne

Sécurité en matière d'électricité

4. Les fiches d'outil électrique sont conçues

Filetage de l'arbre 15,87 mm (5/8") 15,87 mm (5/8") 15,87 mm (5/8") 15,87 mm (5/8")

Longueur totale 432 mm (17")

Poids net 4,5 kg (9,9 lbs) 4,6 kg (10,1 lbs) 4,7 kg (10,4 lbs) 4,8 kg (10,6 lbs)

GEA008-2

éclairée. Les zones de travail encombrées ou sombres ouvrent grande la porte aux accidents.

atmosphères explosives, par exemple en présence de liquides, gaz ou poussières inflammables. Les outils électriques produisent

des étincelles au contact desquelles la poussière ou les vapeurs peuvent s'enflammer.

s'approche pendant que vous utilisez un outil électrique. Vous risquez de perdre la maîtrise de

l'outil si votre attention est détournée.

pour s'adapter parfaitement aux prises de courant. Ne modifiez jamais la fiche de quelque façon que ce soit. N'utilisez aucun adaptateur de fiche sur les outils électriques avec mise à la terre. En ne modifiant pas les

455 mm (17-7/8")

fiches et en les insérant dans des prises de courant pour lesquelles elles ont été conçues vous réduirez les risques de choc électrique.

5. Évitez tout contact corporel avec les surfaces

mises à la terre, telles que les tuyaux, radiateurs, cuisinières et réfrigérateurs. Le

risque de choc électrique est plus élevé si votre corps se trouve mis à la terre.

6. N'exposez pas les outils électriques à la pluie ou à l'eau. La présence d'eau dans un outil électrique augmente le risque de choc électrique.

Ne maltraitez pas le cordon. N'utilisez jamais le cordon pour transporter, tirer ou débrancher l'outil électrique. Maintenez le cordon à l'écart des sources de chaleur, de l'huile, des objets à bords tranchants et des pièces en mouvement.

Le risque de choc électrique est plus élevé lorsque les cordons sont endommagés ou enchevêtrés.

8. Lorsque vous utilisez un outil électrique à

l'extérieur, utilisez un cordon prolongateur prévu à cette fin. Les risques de choc électrique

sont moindres lorsqu'un cordon conçu pour l'extérieur est utilisé.

9. Si vous devez utiliser un outil électrique dans

un endroit humide, utilisez une source d'alimentation protégée par un disjoncteur de fuite à la terre. L'utilisation d'un disjoncteur de

fuite à la terre réduit le risque de choc électrique.

Sécurité personnelle

10.

Restez alerte, attentif à vos mouvements et faites preuve de bon sens lorsque vous utilisez un outil électrique. Évitez d'utiliser un outil électrique si vous êtes fatigué ou si vous avez pris une drogue, de l'alcool ou un médicament.

Un moment d'inattention pendant l'utilisation d'un outil électrique peut entraîner une grave blessure.

11. Portez des dispositifs de protection

personnelle. Portez toujours un protecteur pour la vue. Les risques de blessure seront

432 mm (17")

455 mm (17-7/8")

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