Bosch Power Tools 1347A, 1348AE Operating Instructions, Grinding Operations, Sanding Operations

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BM F000622188 12-04 12/10/04 9:27 PM Page 9

Operating Instructions

SLIDE ON-OFF SWITCH WITH LOCK

The tool is switched “ON” by the switch button located at the side of the motor housing. The switch can be locked in the “ON” position, a convenience for long grinding operations.

TO TURN THE TOOL “ON” without locking it, slide the switch button forward by applying pressure ONLY at the REAR portion of the button. When pressure is released the switch button will snap to “OFF” position.

TO LOCK THE SWITCH “ON”, slide the switch button forward and press “IN” the FRONT portion.

TO UNLOCK THE SWITCH, simply press and release the REAR portion of the button. Switch is spring loaded and will snap back automatically.

! WARNING

Hold the tool with both hands

 

while starting the tool, since

 

torque from the motor can cause the tool to twist.

ELECTRONIC FEEDBACK CIRCUITRY (EFC)

(Model 1348AE only)

The internal electronic feedback system provides a "soft start", which will reduce the stresses that occur from a high torque start. The system also helps to keep the no load speed virtually constant between no-load and load conditions.

Start the tool before applying to work and let the tool come to full speed before contacting the workpiece. Lift the tool from the work before releasing the switch. DO NOT turn the switch “ON” and “OFF” while the tool is under load; this will greatly decrease the switch life.

Grinding Operations

SELECTING GRINDING WHEELS

!WARNING Before using a grinding wheel, be certain that its

maximum safe operating speed is not exceeded by the nameplate speed of the grinder. Do not exceed the recommended wheel diameter.

DISC GRINDING WHEELS

Grinding wheels should be carefully selected in order to use the grinder most efficiently. Wheels vary in type of abrasive, bond, hardness, grit size and structure. The correct type of wheel to use is determined by the job. Use disc grinding wheels for fast grinding of structural steel, heavy weld beads, steel casting, stainless steel and other ferrous metals.

GRINDING TIPS

Efficient grinding is achieved by controlling the pressure and keeping the angle between wheel and workpiece at 10° to 15°. If the wheel is flat, the tool is difficult to control. If the angle is too steep, the pressure is concentrated on a small area causing burning to the work surface.

!WARNING Excessive or sudden pressure on the wheel will

slow grinding action and put dangerous stresses on the wheel.

When grinding with a new wheel be certain to grind while pulling tool backwards until wheel becomes rounded on its edge. New wheels have sharp corners which tend to “bite” or cut into workpiece when pushing forward.

Sanding Operations

SELECTING SANDING DISC

Sanding discs are made of extremely hard and sharp aluminum oxide grits, phenol-resin bonded to a sturdy fiber backing for fast heavy-duty service and long life. The discs vary as to size and spacing of the abrasive

grits. OPEN COAT (type H) — used for soft materials and on paint or varnish. CLOSED COAT (type K) —used for metal, hardwood, stone, marble and other materials.

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Contents For English Parlez-vous français? SeeVoir Ver página Electrical Safety Power Tool Safety RulesPersonal Safety Work AreaService Angle Grinder Safety RulesBM F000622188 12-04 12/10/04 927 PM Symbols Angle Grinders Functional Description and SpecificationsMeasures reduce the risk of starting the tool accidentally Model number 1347A 1348AEDisc Grinding Wheel Assembly AssemblyWheel Guard Installation Lock NUT and Backing FlangeSanding Accessories Assembly Masonry Cutting Wheel AssemblyOperating Instructions Grinding OperationsSanding Operations Sanding Tips Wire Brush OperationsSanding Wood Sanding MetalCleaning MaintenanceTool’s AccessoriesAire de travail Règles de Sécurité GénéralesSécurité électrique Sécurité des personnesRéparation Consignes de sécurité de la rectifieuse dangleLe plomb provenant des peintures à base de plomb Symboles Description fonctionnelle et spécifications Rectifieuses d’anglesCapacités maximales Ensemble de meule à disque AssemblagePose DU Protecteur Écrou DE Blocage ET Bride DappuiEnsemble de meule pour coupe de maçonnerie Disque D’APPUIEnsemble DE Brosse Métallique Consignes de fonctionnement Travaux de meulageTravaux de ponçage Maintenu à plat contre la Travaux à la brosse métalliquePonçage DU Bois Ponçage DES MétauxNettoyage EntretienSi un cordon de rallonge Area de trabajo Normas de seguridad para herramientas mecánicasSeguridad eléctrica Seguridad personalServicio Normas de seguridad para amoladoras angularesBM F000622188 12-04 12/10/04 927 PM Símbolos Con aislamiento dobleDe Ni-Cd Amoladoras angulares Descripción funcional y especificacionesRiesgo de arrancar la herramienta accidentalmente Modelo número 1347A 1348AEMango Lateral EnsamblajeTuerca DE Fijacion Y Pestaña DE Soporte LA MuelaZapata DE Soporte Ensamblaje de la rueda de corte de MamposteríaEL Disco DE Lijar Para Quitar LA Zapata DE Soporte EL Disco DE LijarInstrucciones de funcionamiento Operación de amoladoOperaciones de lijado Consejos Para Lijar Operaciones con escobillas de alambreSi la lijadora se inclina Lijado DE MaderaLimpieza MantenimientoProtector de la muela Tuerca de fijación AccesoriosRemarques Notas Limited Warranty of Bosch Portable and Benchtop Power Tools