MAKITA GA9050R (01) PDF MANUAL

MAKITA GA9050R (01) PDF SUMMARY:

How do I install the side grip (handle)?

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

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What should I ensure before operating the tool with the side grip installed?

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

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How do I install or remove the wheel guard for a depressed center wheel, multi disc, or wire wheel brush on a tool with a locking screw type 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 180 degrees counterclockwise. Be sure to tighten the screw securely. To remove the wheel guard, follow the installation procedure in reverse.

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How do I install or remove the wheel guard for a depressed center wheel, multi disc, or wire wheel brush on a tool with a clamp lever type wheel guard?

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 the wheel guard, follow the installation procedure in reverse.

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What warning should I heed when using a depressed center grinding wheel or multi-disc?

Always use the supplied guard when a depressed center grinding wheel or multi-disc is on the tool. The wheel can shatter during use, and the guard helps reduce the chances of personal injury.

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How do I install or remove a depressed center grinding wheel or multi-disc?

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). 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.

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What is the maximum thickness of grinding wheel I should use?

Never use a grinding wheel thicker than 6.5 mm.

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What warning should I heed when using a flex wheel?

Always use the supplied guard when a flex wheel is on the tool. The wheel can shatter during use, and the guard helps reduce the chances of personal injury.

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How do I install or remove a flex wheel?

Follow the instructions for installing or removing a depressed center grinding wheel/Multi-disc, but also use a plastic pad over the wheel. Refer to the order of assembly on the accessories page in this manual.

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What type of abrasive discs should I use with this tool?

Use sander accessories specified in this manual. These must be purchased separately.

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How do I install or remove an abrasive disc?

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.

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What precautions should I take during grinding operations?

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 the grinding disc or wheel onto the work. Avoid bouncing and snagging the wheel, especially when working corners, sharp edges, etc. This can cause loss of control and kickback. NEVER use the tool 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.

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What cautions should I heed before and after operating the tool?

Never switch on the tool when it is in contact with the workpiece, as it may cause injury to the 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.

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How should I hold the tool during grinding and sanding operations?

ALWAYS hold the tool firmly with one hand on the 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.

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What technique should I use when grinding with a new wheel?

During the break-in period with a new wheel, do not work the grinder in the B direction (leading edge) 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.

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What cautions should I take when operating with a wire cup brush?

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

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How do I operate with a wire cup brush?

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

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Why should I mount a urethane washer when using a wire cup brush?

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

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What cautions should I take when operating with a wire wheel brush?

Check the operation of the wire wheel brush by running the tool with no load, ensuring 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 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 the guard helps to reduce the chances of personal injury.

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How do I operate with a wire wheel brush?

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

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What warnings should I heed when using an abrasive cut-off or diamond wheel?

When using an abrasive cut-off or 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 a 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.

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How do I install or remove an abrasive cut-off wheel or diamond wheel for the United States and Canada?

Mount the inner flange 78 onto the spindle. Fit the wheel/disc on the inner flange and screw the outer flange 78 onto the spindle. Use the lock nut to secure the wheel. Ensure you use the wheel guard for abrasive cut-off/diamond wheels.

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How do I install or remove an abrasive cut-off wheel or diamond wheel for countries other than the United States and Canada?

Mount the inner flange 45 onto the spindle. Fit the wheel/disc on the inner flange and screw the lock nut onto the spindle. Ensure you use the wheel guard for abrasive cut-off/diamond wheels.

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What should I always ensure before performing inspection or maintenance?

Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

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What should I avoid using to clean the tool?

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

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How should I maintain the tool?

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.

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When should I replace the carbon brushes?

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. Both carbon brushes should be replaced at the same time.

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How should I maintain the carbon brushes?

Keep the carbon brushes clean and free to slip in the holders.

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What type of replacement carbon brushes should I use?

Use only identical carbon brushes.

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How do I replace the 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.

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Who should perform repairs, maintenance, or adjustments to ensure safety and reliability?

Repairs, any other maintenance, or adjustments should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

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What is the warning regarding optional accessories?

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 an 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. Failure to do so could result in personal injury to you and others.

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Where can I get assistance for more details regarding accessories?

Ask your local Makita Service Center.

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What is the warranty policy for Makita tools?

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.

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Under what conditions does the Makita warranty not apply?

The 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, or alterations have been made to the tool.

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What limitations of liability does Makita have?

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.

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What legal rights does the warranty give me?

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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What are the specifications for the GA7050 and GA7050R models?

Wheel diameter: 180 mm (7") Max. wheel thickness: 6.5 mm (1/4") Spindle thread: 15.87 mm (5/8") Rated speed (n) / No load speed (n0): 8,500 /min Overall length: 432 mm (17") for GA7050, 455 mm (17-7/8") for GA7050R Net weight: 4.5 kg (9.9 lbs) for GA7050, 4.6 kg (10.1 lbs) for GA7050R

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What are the specifications for the GA9050 and GA9050R models?

Wheel diameter: 230 mm (9") Max. wheel thickness: 6.5 mm (1/4") Spindle thread: 15.87 mm (5/8") Rated speed (n) / No load speed (n0): 6,600 /min Overall length: 432 mm (17") for GA9050, 455 mm (17-7/8") for GA9050R Net weight: 4.7 kg (10.4 lbs) for GA9050, 4.8 kg (10.6 lbs) for GA9050R

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What are the general power tool safety warnings I should be aware of?

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.

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What are the work area safety precautions I should take?

Keep work area clean and well lit. Cluttered or dark areas invite accidents. 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. Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

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What are the electrical safety precautions I should take?

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 the risk of electric shock. 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. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. Do not abuse the cord. Never use the cord for carrying, pulling, or unplugging the power tool. Keep the cord away from heat, oil, sharp edges, or moving parts. Damaged or entangled cords increase the risk of electric shock. 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. If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

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What are the personal safety precautions I should take?

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. A moment of inattention while operating power tools may result in serious personal injury. Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to the power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents. 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. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts. 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.

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What are the power tool use and care guidelines?

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

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What are the service guidelines for the power tool?

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. Follow instructions for lubricating and changing accessories. Keep handles dry, clean, and free from oil and grease. Use the 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 gauge. The smaller the gauge number, the heavier the cord.

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Table 1: Minimum gauge for cord

Ampere Rating	Volts	Total length of cord in feet
More Than	Not More Than	120V
0	6	25 ft. 50 ft. 100 ft. 150 ft.
		AWG
0	6	18
6	10	16
10	12	16
12	16	14
16	20	12
20	30	10
30	40	–
40	50	–
		Not Recommended

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What are the grinder safety warnings common for grinding, sanding, wire brushing, or abrasive cutting-off operations?

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. 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. 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. 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. 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. 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 the 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. Wear personal protective equipment. Depending on application, use a face shield, safety goggles, or safety glasses. As appropriate, wear a dust mask, hearing protectors, gloves, and a 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. Keep bystanders a safe distance away from the work area. Anyone entering the work area must wear personal protective equipment. Fragments of the workpiece or of a broken accessory may fly away and cause injury beyond the immediate area of operation. 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. A cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock. 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. 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. 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. 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. Do not operate the power tool near flammable materials. Sparks could ignite these materials. Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

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What are the 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 the 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. 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 the 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.

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What are the 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 towards 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 a 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. A wheel intended for a larger power tool is not suitable for the higher speed of a smaller tool and may burst.

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What are the 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.

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What are the 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.

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What are the 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. The wire wheel or brush may expand in diameter due to workload and centrifugal forces.

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What are the additional safety warnings?

When using depressed center grinding wheels, be sure to use only fiberglass-reinforced wheels. 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. 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. Make sure the wheel is not contacting the workpiece before the switch is turned on. 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. Use the specified surface of the wheel to perform the grinding. Do not leave the tool running. Operate the tool only when hand-held. Do not touch the workpiece immediately after operation; it may be extremely hot and could burn your skin. Observe the instructions of the manufacturer for correct mounting and use of wheels. Handle and store wheels with care. Do not use separate reducing bushings or adapters to adapt large hole abrasive wheels. Use only flanges specified for this tool. 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. Check that the workpiece is properly supported. Pay attention that the wheel continues to rotate after the tool is switched off. If the working place is extremely hot and humid, or badly polluted by conductive dust, use a short-circuit breaker (30 mA) to assure operator safety. Do not use the tool on any materials containing asbestos. When using a cut-off wheel, always work with the dust collecting wheel guard required by domestic regulation. Cutting discs must not be subjected to any lateral pressure. Do not use cloth work gloves during operation. Fibers from cloth gloves may enter the tool, which causes tool breakage. 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.

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What are the symbols used for the tool?

• volts (V)
• amperes (A)
• hertz (Hz)
• alternating current (~)
• alternating or direct current (~

)

• rated speed (n)
• no-load speed (n0)
• Class II Construction (

)

• revolutions or reciprocation per minute (/min, r/min)

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What is the function of the shaft lock?

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

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What caution should I take when using the shaft lock?

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

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What should I check before plugging in the tool regarding the switch action?

Always check to see that the switch trigger actuates properly and returns to the “OFF” position when released.

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How do I operate the tool with a lock-on switch?

To start the tool, simply pull the switch trigger. Release the switch trigger to stop. For continuous operation, pull the switch trigger and then push in the lock lever. To stop the tool from the locked position, pull the switch trigger fully, then release it.

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What caution should I take when operating the tool with a lock-on switch?

The 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.

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How do I operate the tool with a lock-off switch?

To start the tool, push in the lock lever and then pull the switch trigger. Release the switch trigger to stop.

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What caution should I take when operating the tool with a lock-off switch?

Do not pull the switch trigger hard without pressing in the lock-off button. This can cause switch breakage. A lock lever is provided to prevent the switch trigger from being accidentally pulled.