www.BOSTITCH.com Instruction manual Manuel d’instructions Manual de’instrucciones BTE820 7A 4-1/2 inch (114mm) angle grinder/cut off tool Meuleuse d’angle/outil coupant de 114 mm (4 1/2 po) et de 7 A Esmeriladora angular/cortar herramienta de 7 mperios y 114 mm (4-1/2 pulg.) INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.
SAFETY GUIDELINES - DEFINITIONS It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information. DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
f) 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. g) 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. 4) Power tool use and care a) Do not force the power tool. Use the correct power tool for your application.
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. h) Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.
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 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.
use face or dust mask if operation is dusty. ALWAYS WEAR CERTIFIED SAFETY EQUIPMENT: • ANSI Z87.1 eye protection (CAN/CSA Z94.3), • ANSI S12.6 (S3.19) hearing protection, • NIOSH/OSHA/MSHA respiratory protection. WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
2 A 4 FUNCTIONAL DESCRIPTION 1. Paddle switch 1a. Lock off lever 2. Cord 3. Tool free guard 4. Body grip 5. Auxiliary handle (3 positions) 6. Spindle lock button 7. Guard (Type 27 or Type 1 if so equipped) (not shown) 6 1a 1 3 5 Assembly WARNING: To prevent accidental operation, turn off and unplug tool before performing the following operations. Failure to do this could result in serious personal injury.
4. Figure C - Close the guard latch (7) to secure the guard on the gear case. You should not be able to C rotate the guard by hand when the latch is closed. Do not operate the grinder with a loose guard or the guard latch in open position. 5. To remove the guard, open the guard latch, rotate the guard so that the lugs and slots are aligned and pull up on the guard. 7 Adjusting the Guard (Figure D) Note: The guard is pre-adjusted to the diameter of the gear case hub at the factory.
4-1/2 inch (114mm) Grinding Wheels Wire Wheels Type 27 guard Type 27 guard Type 27 guard unthreaded backing flange Type 27 hubbed wheel 3 inch wire cup brush Type 27 depressed center wheel Sanding Discs Type 27 guard threaded clamp nut 4-1/2 inch (114mm) Sanding Flap Discs rubber backing pad 4 inch wire cup brush sanding disc Type 27 guard threaded clamp nut 4-1/2 inch (114mm) Cutting Wheels hubbed sanding flap disc Type 27 guard unthreaded backing flange non-hubbed sanding flap disc Ty
Spindle Lock WARNING: To prevent accidental operation, E1 turn off and unplug tool before performing the following operations. Failure to do this could result in serious personal injury. The spindle lock button (6) is provided to prevent 6 the spindle from rotating when installing or removing wheels. Operate the spindle lock only when the tool is turned off and the wheel has come to a complete stop. WARNING: Do not engage the spindle lock while the tool is operating.
than 1/8 inch (3mm) thick, place the threaded clamp nut on the spindle so that the raised section (pilot) fits into the center of the wheel. H 1/4 inch wheels Threaded Clamp Nut Backing Flange • Figure I - If the wheel you are installing is 1/8 inch (3mm) thick or less, place the threaded clamp nut on the spindle so that the raised section 1/8 inch wheels I (pilot) is not against the wheel. 4.
Surface Finishing with Sanding Flap Discs 1. Allow the tool to reach full speed before touching the tool to the work surface. 2. Apply minimum pressure to work surface, allowing the tool to operate at high speed. Sanding rate is greatest when the tool operates at high speed. 3. Figure K - Maintain a 5˚ to 10˚ angle between the tool and work K surface. 4. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface. 5˚-10˚ 5.
PERSONAL SAFETY 1. No children or pregnant women should enter the work area where the paint sanding is being done until all clean up is completed. 2. A dust mask or respirator should be worn by all persons entering the work area. The filter should be replaced daily or whenever the wearer has difficulty breathing. NOTE: Only those dust masks suitable for working with lead paint dust and fumes should be used. Ordinary painting masks do not offer this protection.
Material removal rate is greatest when the tool operates at high speed. 3. Figure N - Maintain a 5˚ to 10˚ angle between the tool and work surface for wire cup brushes. 4. Maintain contact between the edge of the wheel and the work surface with wire wheels. N 5. Continuously move the tool in a forward and back motion to avoid creating gouges in the work surface.
USING CUTTING WHEELS WARNING: Do not use edge grinding/cutting wheels for surface grinding applications because these wheels are not designed for side pressures encountered with surface grinding. Wheel breakage and injury may result. 1. Allow tool to reach full speed before touching tool to work surface. 2. Apply minimum pressure to work surface, allowing tool to operate at high speed. Cutting rate is greatest when the tool operates at high speed. 3.
Troubleshooting Problem Possible Cause Possible Solution • Unit will not start. • Cord not plugged in. • Plug tool into a working outlet. • Circuit fuse is blown. • Replace circuit fuse. (If the product repeatedly causes the circuit fuse to blow, discontinue use immediately and have it serviced at a Bostitch service center or authorized servicer.) • Circuit breaker is tripped. • Reset circuit breaker.
90 DAY MONEY BACK GUARANTEE: If you are not completely satisfied with the performance of your Bostitch Power Tool for any reason, you can return it within 90 days from the date of purchase with a receipt for a full refund – no questions asked. LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products sold in Latin America, see country specific warranty information contained in the packaging, call the local company or see website for warranty information.