Makita GA4040C Angle Grinder Instruction Manual

Angle Grinder
Instruction Manual

GA4040C/GA4540C/GA5040C/GA5040CN
GA6040C/GA4041C/GA4541C/GA5041C

(Original instructions)
Explanation of general view

SPECIFICATIONS

• Due to our continuing program of research and development, the specifications herein are subject tochange without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003

Intended use
The tool is intended for grinding, sanding, and cutting metal and stone materials without the use of water.
Power supply
The tool should be connected only to a power supply of the same voltage as indicated on the nameplate, and can only be operated on a single-phase AC supply. They are double-insulated and can, therefore, also be used from sockets without earth wire.
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.

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 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 that 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.
6. Threaded mounting of accessories must match the grinder spindle thread. For accessories mounted by flanges, the arbor 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 inspects the accessory such as abrasive wheels for chips and cracks, backing pad for cracks, tear, or excess wear, and wire brush for loose or cracked wires. If a 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 the application, use a face shield, safety goggles or safety glasses. As appropriate, wear a 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 the work area. Anyone entering the work area must wear personal protective equipment. Fragments of a workpiece or of a broken accessory may fly away and cause injury beyond the 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 the 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 an auxiliary handle, if provided, for maximum control over kickback or torque reaction during startup. The operator can control torque reactions or kickback forces if proper precautions are taken.
    b) Never place your hand near the rotating accessory. The accessory may kick back over your hand.
    c) Do not position your body in the area where the power tool will move if kickback occurs. Kickback will propel the tool in a 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 center 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 to the operator. The guard helps to protect the operator from broken wheel fragments, accidental contact with the 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 the 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 the 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. The wheel intended for a 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 the 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 kick back 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 manufacturer’s 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 operations. 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 workload and centrifugal forces. Additional safety warnings:
17. When using depressed center 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. Do not touch accessories immediately after operation; it may be extremely hot and could burn your skin.
26. Observe the instructions of the manufacturer for correct mounting and use of wheels. Handle and store wheels with care.
27. Do not use separate reducing bushings or adaptors to adapt large hole abrasive wheels.
28. Use only flanges specified for this tool.
29. For tools intended to be fitted with a threaded hole wheel, ensure that the thread in the wheel is long enough to accept the spindle length.
30. Check that the workpiece is properly supported.
31. Pay attention that the wheel continues to rotate after the tool is switched off
32. If the working place is extremely hot and humid, or badly polluted by conductive dust, use a shortcircuit breaker (30 mA) to assure operator safety.
33. Do not use the tool on any materials containing asbestos.
34. When using a cut-off wheel, always work with the dust collecting wheel guard required by domestic regulation.
35. Cutting discs must not be subjected to any lateral pressure.
36. Do not use cloth work gloves during operation. Fibers from cloth gloves may enter the tool, which causes tool breakage.
37. Make sure there are no electrical cables, water pipes, gas pipes etc. that could cause a hazard if damaged by use of the tool.
    SAVE THESE INSTRUCTIONS.

WARNING: DO NOT let comfort or familiarity with the 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.

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and unplugged before adjusting or checking the function on the tool.
Shaft lock (Fig. 1)
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. 2)
CAUTION:
• Before plugging in 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 the “ON” position for ease of operator comfort during extended use. Apply caution when locking the tool in the “ON” position and maintain a firm grasp on the tool.
For models GA4040C, GA4041C, GA4540C, GA4541C, GA5040C, GA5041C, and GA6040C
To start the tool, slide the slide switch toward the “I (ON)” position by pushing the rear of the slide switch. 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. For model, GA5040CN To start the tool, slide the slide switch toward the “I (ON)” position. To stop the tool, release the slide switch toward the “O (OFF)” position.
Indication lamp (Fig. 3)
The indication lamp lights up green when the tool is plugged. If the indicator lamp does not light up, the main 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
The tool does not start with the switch being lock-on 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, return the slide switch to the “O (OFF)” position.
Speed adjusting dial (Fig. 4)
The rotating speed can be changed by turning the speed and adjusting the dial to a given number setting from 1 to 5. Higher speed is obtained when the dial is turned in the direction of number 5. And lower speed is obtained when it is turned in the direction of number 1. Refer to the below table for the relationship between the number settings on the dial and the approximate rotating speed.

For model GA4040C, GA4540C, GA5040C, GA5040CN, GA4041C, GA4541C, GA5041C

012752
For model GA6040C

012756
CAUTION:

• If the tool is operated continuously at low speeds for a long time, the motor will get overloaded and heated up.
• The speed adjusting dial can be turned only as far as 5 and back to 1. Do not force it past 5 or 1, or the speed adjusting function may no longer work.

Electronic function
The tools equipped with electronic functions are easy to operate because of the following features.
Constant speed control
Constant speed control provides a fine finish by keeping the rotating speed constant under the loaded condition.
Soft start feature
The soft-start feature suppresses starting shock.
Overload protector
When the load on the tool exceeds admissible levels, power to the motor is reduced to protect the motor from overheating. When the load returns to admissible levels, the tool will operate as normal.
Mechanical brake
For model GA4041C, GA4541C, GA5041C
The mechanical brake is activated after the tool is switched off.
The brake does not work when the power supply is shut down with the switch still on.

ASSEMBLY

CAUTION:
• Always be sure that the tool is switched off and unplugged before carrying out any work on the tool.
Installing the 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 (For depressed center wheel, flap disc, flex wheel, wire wheel brush / abrasive cut-off wheel, diamond wheel)
WARNING:

• When using a depressed center wheel, flap 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.
• 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.)

For tool with locking screw type wheel guard (Fig. 6) 
Mount the wheel guard with the protrusions on the wheel guard band aligned with the notches on the bearing box. Then rotate the wheel guard around 180° counterclockwise.
Be sure to tighten the screw securely. To remove the wheel guard, follow the installation procedure in reverse.
For tool with clamp lever-type wheel guard (Fig. 7 & 8) 
Pull the lever in the direction of the arrow after loosening the screw. Mount the wheel guard with the protrusions on the wheel guard band aligned with the notches on the
bearing box. Then rotate the wheel guard around 180°. Tighten the wheel guard by fastening the screw after pulling a lever in the direction of the arrow. The setting angle of the wheel guard can be adjusted with the lever. To remove the wheel guard, follow the installation procedure in reverse.
Installing or removing the depressed center wheel or flap disc (optional accessory) (Fig. 9 & 10)
WARNING:
• When using a depressed center wheel or flap disc, the wheel guard must be fitted on the tool so that the closed side of the guard always points toward the operator.
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.
To remove the wheel, follow the installation procedure in reverse.
Super flange (Optional accessory)
Models with the letter F are standard-equipped with Super flange. Only 1/3 of efforts needed to undo lock nut, compared with conventional type.
CAUTION:
• Do not use super flange for models equipped with the mechanical brake. Otherwise, it may loosen when the brake is activated.
Installing or removing Ezynut (optional accessory) (Fig. 11, 12, 13 & 14)
CAUTION:
• Do not use Ezynut with Super Flange or angle grinder with “F” on the end of model No. Those flanges are so thick that the entire thread cannot be retained by the spindle.
Mount inner flange, abrasive wheel and Ezynut onto the spindle so that Makita Logo on Ezynut faces outside. Press shaft lock firmly and tighten Ezynut by turning the
abrasive wheel clockwise as far as it turns. Turn the outside ring of Ezynut counterclockwise to loosen.
NOTE:
• Ezynut can be loosened by hand as long as the arrow points to the notch. Otherwise, a lock nut wrench is required to loosen it. Insert one pin of the wrench into a hole and turn Ezynut counterclockwise.
Installing or removing the flex wheel (optional accessory) (Fig. 15)
WARNING: 
• Always use supplied guard when flex wheel is on a tool. The wheel can shatter during use and a guard helps to reduce the chances of personal injury. Follow instructions for depressed center wheel but also use a plastic pad over the wheel. See the order of assembly on the accessories page in this manual.
Installing or removing abrasive disc (optional accessory) (Fig. 16)
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 sanding lock nut onto the spindle.
To tighten the sanding 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. Installing or removing dust cover attachment (Optional accessory) (Fig. 17)
WARNING:

• Always be sure that the tool is switched off and unplugged before installing or removing the dust cover attachment. Failure to do so causes damage to the tool or a personal injury. There are four pieces of dust cover attachment and each is used in one of the different positions. Set the dust cover attachment so that the marking (A, B, C or D) places as shown. Snap its pins in the vents. The dust cover attachment can be removed by hand.

NOTE:

• Clean out the dust cover attachment when it is clogged with dust or foreign matters. Continuing operation with a clogged dust cover attachment will damage the tool.

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 the wheel if the 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 tools with wood cutting blades and other saw blades. 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 the operator.
• Always wear safety goggles or a face shield during operation.
• After the 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 (Fig. 18)
ALWAYS hold the tool firmly with one hand on the 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° 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 directions. Operation with abrasive cut-off/diamond wheel (optional accessory) (Fig. 19) The direction for mounting the lock nut and the inner flange varies by wheel thickness.

Refer to the table below

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 the 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 kick back 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.

Operation with wire cup brush (optional accessory) (Fig. 20)
CAUTION:

• Check the operation of the brush by the running tool with no load, insuring that no one is in front of or in line with a brush.
• Do not use a brush that is damaged, or which is out of balance. The use of a damaged brush could increase the potential for injury from contact with broken brush wires.

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

Operation with wire wheel brush (optional accessory) (Fig. 21)
CAUTION:

• Check operation of wire wheel brush by the running tool with no load, insuring that no one is in front of or in line with the wire wheel brush.
• Do not use a wire wheel brush that is damaged, or which is out of balance. The use of a damaged wire wheel brush could increase the potential for injury from contact with broken wires.
• ALWAYS use a guard with wire wheel brushes, assuring the diameter of the wheel fits inside the guard. The wheel can shatter during use and a guard helps to reduce the chances of personal injury.

Unplug the tool and place it upside down allowing easy access to the spindle. Remove any accessories on the spindle. Thread wire wheel brushes onto the spindle and tightens with the wrenches.
When using a wire wheel brush, avoid applying too much pressure which causes over bending of wires, leading to premature breakage.

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.
• Never use gasoline, benzene, thinner, alcohol or the like. Discoloration, deformation, or cracks may result. 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. (Fig. 22) To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection, and replacement, any other maintenance or adjustment should be performed by Makita Authorized 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. If you need any assistance with more details regarding these accessories, ask your local Makita Service Center.
• Dust cover attachment

Note:
*1 Do not use a Super flange with a grinder equipped with a brake function.
*2 Do not use Super flange and Ezynut together.
*3 In some European countries, when using a diamond wheel, the ordinary guard can be used instead of the special guard covering both sides of the wheel. Follow the regulations in your country.
013977
NOTE:
• Some items in the list may be included in the tool package as standard accessories. They may differ from country to country.

Noise
The typical A-weighted noise level is determined according to EN60745:
Model GA4040C, GA4540C, GA5040C
Sound pressure level (LpA): 86 dB (A)
Sound power level (LWA): 97 dB (A)
Uncertainty (K): 3 dB (A)
Model GA6040C
Sound pressure level (LpA): 87 dB (A)
Sound power level (LWA): 98 dB (A)
Uncertainty (K): 3 dB (A)
Model GA4541C
Sound pressure level (LpA): 83 dB (A)
Sound power level (LWA): 94 dB (A)
Uncertainty (K): 3 dB (A)
Model GA5041C
Sound pressure level (LpA): 84 dB (A)
Sound power level (LWA): 95 dB (A)
Uncertainty (K): 3 dB (A)
Wear ear protection
Vibration
The vibration total value (tri-axial vector sum) determined
according to EN60745:
Model GA4040C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 5.0 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 5.0 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with normal side gripVibration emission (ah, DS): 3.0 m/s 2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with anti vibration side grip
Vibration emission (ah, DS): 2.5 m/s or less
Uncertainty (K): 1.5 m/s2
Model GA4540C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 6.0 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 5.5 m/s2
Uncertainty (K): 1.5 m/s 2
Work mode: disc sanding with normal side grip
Vibration emission (ah, DS): 2.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with anti-vibration side grip
Vibration emission (ah, DS): 2.5 m/s2
Uncertainty (K): 1.5 m/s2
Model GA5040C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 6.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 5.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with normal side grip
Vibration emission (ah, DS): 2.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with anti vibration side grip
Vibration emission (ah, DS): 2.5 m/s2
Uncertainty (K): 1.5 m/s2
Model GA6040C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 6.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 6.0 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with normal side grip
Vibration emission (ah, DS): 2.5 m/s2
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with anti-vibration side grip
Vibration emission (ah, DS): 2.5 m/s2 or less
Uncertainty (K): 1.5 m/s 2
Model GA4541C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 6.5 m/s 2
Uncertainty (K): 1.5 m/s2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 5.5 m/s2
Uncertainty (K): 1.5 m/s 2
Work mode: disc sanding with normal side grip
Vibration emission (ah, DS): 2.5 m/s 2 or less
Uncertainty (K): 1.5 m/s2
Work mode: disc sanding with anti-vibration side grip
Vibration emission (ah, DS): 2.5 m/s 2 or less
Uncertainty (K): 1.5 m/s 2
Model GA5041C
Work mode: surface grinding with normal side grip
Vibration emission (ah, AG): 7.0 m/s 2
Uncertainty (K): 1.5 m/s 2
Work mode: surface grinding with anti vibration side grip
Vibration emission (ah, AG): 6.0 m/s 2
Uncertainty (K): 1.5 m/s 2
Work mode: disc sanding with normal side grip
Vibration emission (ah, DS): 2.5 m/s 2 or less
Uncertainty (K): 1.5 m/s 2
Work mode: disc sanding with anti vibration side grip
Vibration emission (ah, DS): 2.5 m/s or less
Uncertainty (K): 1.5 m/s 2

• The declared vibration emission value has been measured in accordance with the standard test method and may be used for comparing one tool with another.
• The declared vibration emission value may also be used in a preliminary assessment of exposure.
• The declared vibration emission value is used for main applications of the power tool. However, if the power tool is used for other applications, the vibration emission value may be different.

WARNING:

• The vibration emission during actual use of the power tool can differ from the declared emission value depending on the ways in which the tool is used.
• Be sure to identify safety measures to protect the operator that is based on an estimation of exposure in the actual conditions of use (taking account of all parts of the
  operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger time).

EC DECLARATION OF CONFORMITY
For European countries only
The EC declaration of conformity is included as Annex A to this instruction manual.
Makita Europe N.V.
Jan-Baptist Vinkstraat 2,
3070 Kortenberg, Belgium
Makita Corporation
3-11-8, Sumiyoshi-Cho,
Anjo, Aichi 446-8502 Japan
www.makita.com