Angle Grinder 8273757

Transcript

Angle Grinder 8273757 OWNER'S MANUAL Please read and understand all instructions before use. Retain this manual for future reference. 8273757 Angle Grinder INTRODUCTION Read and save this instruction manual. Tool specifications: Model Voltage (V) Bore Weight (kg) CH3301 120 60 Frequency (Hz) 7 Rated Current (A) No-load speed (Min-1) Input power: 1,200 W - 9 Amps Electric current voltage 120±10% VAC Frequency 60 Hz No loaded speed: 11,000 RPM Grinding disc: 4.5" Weight (approx.) Spindle 11000 4-1/2“ 5/8“-11UNC SPECIFICATIONS Safety class: Disc dia. / II 2.05 kg IMPORTANT SAFETY PRECAUTIONS WARNING! Read and understand all instructions before using this tool. Keep this manual for the safety warnings and precautions, operating, inspection and maintenance instructions. When using this tool, basic precautions should always be followed to reduce the risk of personal injury and/or damage to the equipment. WORK AREA 1. Keep your work area clean and well lit. Cluttered and dark areas invite accidents. 2. Operate in a safe work environment. Do not use machines or power tools in damp or wet locations. Do not expose to rain. Do not use power tools in the presence of flammable gases or liquids. 3. Keep children, bystanders and visitors away from the work area. Do not let them handle tools or extension cords. No one should be in the work area if they are not wearing suitable protective equipment. 4. Store unused equipment. When not in use, tools must be stored in a dry location to prevent rust. Always lock up tools and keep them out of reach of children. PERSONAL SAFETY 1. Use eye, face, head, breathing and ear protection. Always wear ANSI approved impact safety goggles, which must provide both frontal and side protection. Wear a full face shield if your work creates metal filings or wood chips. Wear an ANSI approved dust mask or respirator when working around metal, wood and chemical dusts and mists. Wear ANSI approved earplugs. 2. Do not over reach; keep proper footing and balance at all times. Proper footing and balance enables better control of the tool in unexpected situations. 3. Dress properly, wear protective equipment. Do not wear loose clothing or jewelry as they can be caught in moving parts. Tie back long hair. Protective, electrically non-conductive clothes and non-skid footwear are recommended when working. 4. Stay alert, watch what you are doing and use your common sense. Do not operate any machine or tool when you are tired, under the influence of drugs, alcohol or medications. For any technical questions, please call 1-800-665-8685 2 8273757 5. Use clamps or other practical ways to secure and support the work piece to a stable platform. Holding the work piece by hand or against your body is unstable and may lead to loss of control. TOOL USE AND CARE 1. Use the right tool for the job. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool. The tool will perform better and safer at the task for which it was intended. Do not modify this tool or use for a purpose for which it was not designed. Do not use this tool to cut wood or sharpen tools. 2. Maintain tools with care. Keep tools clean, sharp and in good condition for a better and safer performance. Follow instructions for lubricating and changing accessories. Inspect tool fittings, alignment and hoses periodically and, if damaged, have them repaired by an authorized technician or replaced. The handles must be kept clean, dry and free from oil and grease at all times. A properly maintained tool reduces the risk of binding and is easier to control. Sharp tools are safer than tools which have become dull because you do not have to apply excessive amounts of force to make your cuts. Applying excessive force can lead to slips and damage to your projects or personal injury. 3. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches are removed from the tool or machine before connecting it. A wrench or key that is left attached to a rotating part of the tool increases the risk of personal injury. 4. Avoid unintentional starts. Be sure that the throttle/ignition switch is in neutral or OFF position when not in use and before connecting it to any power/air source. Do not carry the tool with fingers near or on the switch. 5. Only use the lubricants supplied with the tool or specified by the manufacturer. Other lubricants may not be suitable and may damage the tool or even make the tool explode. 6. When not in use for an extended period, apply a thin coat of lubricant to the steel parts to avoid rust. SERVICE 1. Check for damaged parts. Before using any tool, any part that appears to be damaged should be carefully checked to determine that it will operate properly and perform it's intended functions. Check for alignment and binding of moving parts; broken parts or mounting fixtures, or any other condition that may affect proper operation. Any part that is damaged should be properly repaired or replaced by a qualified technician. 2. When servicing, use only identical replacement parts. Only use accessories intended for use with this tool. ELECTRICAL SAFETY 1. Disconnect power supply. Disconnect from power supply when not in use, before cleaning, servicing or changing any parts or accessories. 2. Protect yourself against electric shocks when working on electrical equipment. Prevent body contact with grounded surfaces such as pipes, radiators, cooking stoves and refrigerators. There is an increased chance of electrical shock if your body is grounded. 3. Double Insulated tools are equipped with a polarized plug (one blade is wider than the other), this plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install a polarized outlet. Do not change the plug in any way. Double Insulation eliminates the need for a three wire grounded power cord and grounded power supply system. 4. Grounded tools must be plugged into an outlet properly installed and grounded in accordance with all codes and ordinances. Never remove the grounding prong or modify the plug in any way. Do not use any adapter plugs. Check with a qualified electrician if you are in doubt as to whether the outlet is properly grounded. If the tool should electronically malfunction or break down, grounding provides a low resistance path to carry electricity away from the user. 5. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock. 6. Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an outlet. Keep cord away from heat, oil, sharp edges or moving parts. Do not operate this tool if the power cord is frayed or damaged. Replace damaged cords immediately. Damaged cords increase the risk of electric shock. Do not modify the plug in any way. 7. When operating a power tool outside, use an outdoor extension cord marked “W-A” or “W”. These cords are rated for outdoor use and reduce the risk of electric shock. 8. Avoid using an unnecessarily long extension cord. Choose a cord that is appropriate for the situation, as a cord that is too long and running across the floor can be more dangerous than helpful. For any technical questions, please call 1-800-665-8685 3 8273757 9. Always position the cord so that it will not be caught in the workpiece when the grinder is in use. Position the tool so that the power cord always stays behind the machine during operation. Keep the power cord away from the work area during use. SPECIFIC SAFETY INSTRUCTIONS WARNING! Damage to the disc is possible even if the safety instructions are observed. ALWAYS USE THE WHEEL GUARD even if you are going to use the machine for a short period of time. 1. When the machine is in operation, keep your hands away from the cutting or grinding area and from the tool's rotating parts. 2. The disc will not stop immediately when the machine is turned off. Do not place the tool down until the grinding or cutting wheel has come to complete stop. 3. Do not start the tool when the grinding or cutting wheel is touching the work area. 4. Always ensure the safety guard is attached correctly. Do not operate the angle grinder without the guard attached. 5. Only use grinding and cutting wheels that are approved for a maximum speed of 11,000 RPM or greater. When using grinding wheels, be sure to use only fiberglass-reinforced wheels. 7. Before connecting the tool to the power supply follow the safety instructions to install the grinding or cutting wheels. Do not lock it too tight, otherwise cracks may occur. 8. Always use both hands when operating the tool. Always hold the tool firmly with one hand on housing and the other on the side handle. Turn the tool on and then apply the wheel or disc to the work-piece. 9. Do not install more than one disc at a time. 10. During long work periods do not allow the motor to overload and/or overheat, take work breaks. 11. Cutting discs must not be subjected to any latteral pressure. 12. Check the wheel carefully for cracks or damage before operation. Replace the cracked or damaged wheel immediately. 13. Before using the tool on an actual work piece, make a test run of the tool at the highest no-load speed for at least 30 seconds in a safe position. Stop immediately if there is any vibration or wobbling that could indicate poor installation or a poorly balanced wheel. Check the tool to determine the cause. 14. Do not touch the work piece immediately after operation; it may be extremely hot and could burn your skin. 15. A large amount of sparks will be created when working with angle grinder. Hold the tool so that sparks fly away from you and other persons or flammable materials. Keep up to date fire-prevention safety instructions in the event of a fire. 16. Do not use the tool on any materials containing asbestos. 17. This power tool is intended to function as a grinder, sander, wire brush, polisher or cut-off tool. Operations such as grinding, sanding, wire brushing, polishing or cutting-off 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. 19. 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. 21. 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. 22. Only use grinding or cutting wheels, flanges, backing pads or any other accessory that will correctly fit the power tool. Accessories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control. 23. Do not use damaged accessories. Before each use inspect the accessories for chips, cracks, tears or excess wear or cracked wires. If a tool or accessory is dropped, inspect for damage or install before resuming use. 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. 24. Hold the tool by insulated gripping surfaces when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and shock the operator. 25. 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. 27. 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. 28. 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. For any technical questions, please call 1-800-665-8685 4 8273757 29. Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock. This tool is intended for grinding, cutting and deburring metal materials without the use of water. 31. Do not apply pressure on the tool; let the speed of the cutting disc do the work. 32. Cutting operations with bonded abrasive cut-off wheels should only be done when a cut-off guard is used. 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 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. 1. 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. 2. Never place your hand near the rotating accessory. Accessory may kickback over your hand. 3. 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 wheel’s movement at the point of snagging. 4. 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. 5. Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent kickback and loss of control. ADDITIONAL SAFETY INSTRUCTIONS FOR GRINDING AND CUTTING-OFF OPERATIONS 1. 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. 2. The guard must be securely attached to the power tool and positioned for maximum safety , so the least amount of wheel is exposed towards the operator. The guard helps to protect operator from broken wheel fragments and accidental contact with wheel. 3. 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 . 4. 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 cutoff wheels may be different from grinding wheel flanges. 5. 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 . Operating Controls: 1 Auxiliary handle 2 Spindle lock button 3 Ventilation slots 4 On/off switch 5 Threads(for auxiliary handle)X2 6 Speed controller 7 Grinding guard 8 Cutting guard 9 Inner flange 10 Grinding disc 11 Cutting disc 12 Outer flange 13 Spanner For any technical questions, please call 1-800-665-8685 5 8273757 Figure 6 3) Stop the tool by pressing the button of on/off switch. SPEED CONTROLLER ACTION The tool speed can be changed by turning the speed controller (6) to a given number setting from 1 to 6 (at the time when the on/off switch is fully pulled). Higher speed is obtained when the dial is turned in the direction of number 6. And lower speed is obtained when it is turned in the direction of number 1. CAUTION: If the tool is operated continuously at low speeds for along time, the motor will get overloaded, resulting in tool malfunction. The speed controller (6) can be turned only as far as 6 and back to 1. Do not force it past 6 or 1,or the speed adjusting function may no longer work. ASSEMBLY Warning: Switch off the grinder and disconnect it from the power point. Note: You must use the cutting guard when using the cutting disc . 1. Place the backing washer over the spindle, making sure the fit is tight. 2. Place the grinding or cutting wheel on the top of the backing washer ensuring the bore fits into the step of the flange. 3. Mount the concave recess side of the locking nut over the spindle. 4. Press the spindle lock and ensure there is no movement in the spindle. Then while the spindle lock is depressed tighten the locking nut in a clockwise direction using the pin spanner. 5. Allow the angle grinder to run idle for at least a minute with the grinding or cutting disc correctly assembled, a vibrating wheel should immediately be replaced. 6. The auxiliary handle (1) can be fitted to the left or the right. Select the position which gives the most comfortable and safe use. 7. Fitting the grinding guard or cutting guard: 8. Open the guard trigger (A) mechanism of the grinding or cutting guard; 9. Position the lug on the inside of the central guard ring in the vertical slot in the spindle cover and press the grinding or cutting guard onto the spindle cover; (See figure 1) 10. Twist the grinding or cutting guard to the appropriate position for either grinding or cutting (see Fig. 2). 11. Lock the grinding or cutting guard in position by press the guard trigger. PREPARATION INSTALLATION OF THE WHEEL GUARD 1. Always be sure that the tool is switched off and unplugged before attempting to perform any adjustments. 2. Install the wheel guard in a position that is convenient for operating. Make sure that it is in the proper position and is not loose. 3. The wheel guard must be fitted on the tool so that the closed side of the guard always points toward the operator. INSTALLATION OF THE SIDE HANDLE 1. Attach the side handle firmly into the desired position. It can be installed in any of the two locations on the machine’s housing. 2. 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. INSTALLING OR REMOVING THE GRINDING DISC Attention! Always be sure that the tool is switched off and unplugged before attempting to perform any adjustments. 1. Only use discs from well-known manufacturers before the expiry date that is indicated on the package. Remember, that disc’s properties are greatly influenced by the conditions of storage. 2. Mount the wheel guard on the inner flange and put the outer flange onto it. 3. To screw the disc securely press the shaft lock to stop the wheel and use a wrench after that. IMPORTANT: put the protruding part of the outer flange close to disc if you mount sanding disc, put the protruding part of the outer flange outside if you mount a cut-off disc. 4. To remove wheel guard, follow the installation procedure in reverse. 5. Place the inner flange (9) over the spindle making sure the fit is tight. For any technical questions, please call 1-800-665-8685 6 8273757 CAUTION: An O-ring is inserted in the inner flange around the spigot. If the O-ring is missing or is damaged , it must in all cases be replaced before the inner flange is mounted. 6. Place the grinding(10) or cutting disc (11 )on the top of the inner flange ensuring the bore fits into the step of the flange. 7. Mount the concave recess side of the outer flange (12) over the spindle. 8. Press the spindle locking button (2) firm and ensure there is no movement in the spindle. 9. Then while the spindle lock is depressed tighten the outer flange in a clockwise direction using the spanner (13) (See figure 5). OPERATION This angle grinder can be used for grinding and cutting steel, stone or ceramic workpieces such as pipe, box section, rectangular, angle iron steel bar, house bricks and tiles. Do not attempt to grind wood or a soft metal such as lead. The material will quickly “fill” the disc and render it useless. Before starting the grinder first ensure that the disc guard and tool are in good condition. Position the guard so that it will deflect hot sparks away from the operator. 1. Do not cover exhaust vents when the tool is in use. This may cause damage to the motor and reduce the efficiency of the tool. 2. Guide back and forth over the work piece in a steady motion. 3. To cut hard stone a diamond cutting wheel is recommended. Allow the angle grinder to run in idle for at least a minute with the grinding or cutting disc correctly assembled, vibration disc should be immediately replaced. SWITCH ACTION 1. When starting hold the tool firmly with both hands i.e. One hand on the motor housing and the other on the side auxiliary handle (1). 2. Start the tool by pressing the button of on/off switch(4) down slightly then pushing forward on the button of on/off switch. (See figure 6) CUTTING OPERATION 1. Do not cover exhaust vents when the tool is in use. This may cause damage to the motor and reduce the efficiency of the tool. 2. For the best work results hold the grinder at a 10° to 15° angle. 3. Guide back and forth over the work piece in a steady motion. 4. When cutting avoid tilting the tool in the cutting plane. Ensure the cutting wheel has a clean cutting edge. 5. To cut hard stone a diamond cutting wheel is recommended. 6. Do not use a cutting wheel for rough grinding. 7. When cutting, do not press, tilt or oscillate. Work with a moderate feed rate that is suited to the material to be worked. 8. The direction in which one cuts is important. 9. The machine must always rotate opposite to the direction of motion; therefore never move the machine in the other direction. Otherwise, the danger exists that it will be forced uncontrolled out of the cut. 10. When cutting profiles or square pipes, it is best to start with the smallest cross section. 11. 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. 12. Do not position your body in lime 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 . 13. 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. 14. Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece. 15. Support panels or any oversized workpiece to minimize the 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. 16. Use extra caution when making a “pocket cut ” into existing walls or other blind areas. The For any technical questions, please call 1-800-665-8685 7 8273757 protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback. GRINDING AND SANDING OPERATION 1. In general, keep the edge of the wheel or disc at an angle of about 30° to 40° to the work-piece surface. 2. Move the machine back and forth with light pressure. In this manner, the workpiece does not become too hot, no discoloration occurs and no ridges are produced. 3. When breaking in a new wheel, do not work the grinder in the reverse direction or it will cut into the work-piece. Once the edge of the wheel has been rounded off by use, the wheel may be worked in both forward and reverse direction. 4. Use cut-off disc for cutting steel rods, pipes, other metal ware and stone. Under no circumstances should a cutting disc be used for roughing work. SWITCH ACTION 1. When starting, hold the tool firmly with both hands i.e. One hand on the rear handle or motor housing and the other on the side handle. 2. The switch can be locked in the “ON” position for long grinding operations. 3. To turn the tool “ON” without locking it, press the trigger. When pressure is released the switch will return to “OFF” position. 4. TO LOCK THE SWITCH “ON”, push the switch button forward and press lock button. 5. TO UNLOCK THE SWITCH, simply press and release the button. The switch is spring loaded and will snap back automatically. 1. The armature and stator (motor) is the heart of the power tool. Exercise due care to ensure they do not become damaged or affected by oil or water. 2. Clean and dust the tool after each use. CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance. 3. The carbon brushes should be checked periodically and worn-out brushes should be replaced in time. After replacing, inspect whether the new carbon brushes can move freely in the brush bolder. Keep running the motor for 15 minutes to match the contact of the carbon brushes and commutator. 4. Regularly inspect all mountings and screws and ensure they are properly tightened. Showed any of the screws be loose, tighten them immediately. Failure to do so may result in serious damage. 5. The supply cord of the tool and any extension cord used should be checked frequently for damage. If damaged, have the cordset replaced by an authorized service facility. Replace the extension cord if necessary. 6. The grease in the gearbox will require replacement after extensive use of the tool. Please refer to an authorized service agent to provide this service. For any technical questions, please call 1-800-665-8685 8 8273757 DIAGRAM PDF 文件使用 "FinePrint pdfFactory Pro" 试用版本创建 www.fineprint.com.cn For any technical questions, please call 1-800-665-8685 9 8273757 PARTS LIST # Description Qty # Description Qty 1 Outer flange 1 29 Ball Bearing 6000.2RS 1 2 O-ring 1 30 Bearing cover 1 3 Inner Flange 1 31 Armature 1 4 Grinding guard 1 32 Dustproof ring 1 5 Hex. nut M5 1 33 Ball Bearing 608.2Z 1 6 Spring lock washer 1 34 Bearing bush 1 7 Square washer 1 35 Baffle 1 8 Guard trigger 1 36 Topping Screw ST4X70C 2 9 Pan head screw M4X14 4 37 Stator 1 10 Spring washer 4 38 Spring 2 11 Spindle 1 39 Carbon brush 2 12 Gear box cover 1 40 Brush holder 2 13 Felt ring 24x 16.5x2.5 1 41 Switch 1 14 Ball bearing 6201.RS 1 42 Plastic plate 1 15 Bearing cover 3 43 Housing 1 16 Pan head screwM4x10 1 44 Cord camp 1 17 Gear 1 45 Tapping Screw ST4X14F 2 18 Needle bearing 1 46 Inductor 2 19 Auxiliary handle 1 47 Switch slide 1 20 Snap ring 1 48 Switch button 1 21 Tapping screwST4.2X28F 4 49 Cord sleeve 1 22 Pan head screw M4X8 3 50 Rear cover 1 23 Spindle lock spring 1 51 Topping screw ST4.2X16F 1 24 Spindle lock button 1 52 Cord 1 25 Gear box 1 53 Rating label 1 26 Nut M8x1 1 54 Brand label 1 27 Pinion 1 55 Spanner 1 28 Bearing rubber ring 1 For any technical questions, please call 1-800-665-8685 10