Bosch Power Tools 4212L manual Reaching with Your Hand Under a Coasting Blade is Dangerous

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Safety

!WARNING “READ ALL INSTRUCTIONS” — Failure to follow the SAFETY RULES identified by BULLET (●) symbol listed BELOW and other safety precautions, may result in serious personal injury.

●Inspect your workpiece before cutting. If workpiece is bowed or warped, clamp it with the outside bowed face toward the fence. Always make certain that there is no gap be- tween the workpiece, fence and table along the line of the cut. Bent or warped workpieces can twist or rock and may cause binding on the spinning saw blade while cutting. Also, make sure there are no nails or foreign objects in the workpiece.

●Do not use the saw until the table is clear of all tools, wood scraps, etc., except the work- piece. Small debris or loose pieces of wood or other objects that contact the revolving blade can be thrown with high speed at the operator.

●Do not feed workpiece into the blade or cut “freehand” in any way. Workpiece must be stationary and clamped or braced by your hand. Saw must be fed through the workpiece smoothly and at a rate which will not overload the saw’s motor.

●Cut only one workpiece at a time. Multiple workpieces cannot be adequately clamped or braced and may bind on the blade or shift dur- ing cutting.

●Be certain the miter saw is mounted or placed on a level, firm work surface before using. A level and firm work surface reduces the risk of the miter saw becoming unstable.

●Plan your work. Provide adequate support accessories such as tables, saw horses, table extension, etc. for workpieces wider or longer than the table top (see page 21). Workpieces longer or wider than the miter saw table can tip if not securely supported. If the cutoff piece or workpiece tips it can lift the lower guard or be thrown by the spinning blade.

●Do not use another person as a substitute for a table extension or as additional sup- port. Unstable support for the workpiece can cause the blade to bind or the workpiece to shift during the cutting operation pulling you and the helper into the spinning blade.

●The cutoff piece must not be jammed against or pressured by any other means against the spinning saw blade. If confined, i.e. using length stops, it could get wedged against the blade and thrown violently.

●Always use a clamp or a fixture designed to properly support round material such as dowel rods, or tubing. Rods have a tendency to roll while being cut, causing the blade to “bite” and pull the work with your hand into the blade.

●When cutting irregularly shaped work- pieces, plan your work so it will not slip and pinch the blade and be torn from your hand. A piece of molding, for example, must lie flat or be held by a fixture or jig that will not let it twist, rock or slip while being cut.

●Let the blade reach full speed before con- tacting the workpiece. This will help avoid thrown workpieces.

●If the workpiece or blade becomes jammed or bogged down, turn miter saw “OFF” by releasing switch. Wait for all moving parts to stop and unplug the miter saw, then work to free the jammed material. Continued saw- ing with jammed workpiece could cause loss of control or damage to miter saw.

●Braking action of the saw causes the saw head to jerk downward. Be ready for this reaction when making an incomplete cut or when releasing the switch before the head is completely in the down position.

●After finishing the cut, release the switch, hold the saw arm down and wait for blade to stop before removing work or cutoff piece. If blade does not stop within five (5) sec- onds, unplug the saw and follow the instruc- tions in the Troubleshooting section.

REACHING WITH YOUR HAND UNDER A COASTING BLADE IS DANGEROUS!

●There are additional safety instructions for particular operations of the saw in the operating section. Read the rest of the man- ual for safe operation.

●For chop action cutting, turn the saw “ON” and lower the head assembly to make the cut. Release the switch and wait for the blade to completely stop before raising the head assembly and removing the workpiece.

“SAVE THESE INSTRUCTIONS”

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Contents Operating/Safety Instructions Table of Contents General Safety Rules for Bench Top Tools SafetyElectrical Safety Personal SafetyTool Use and Care Safety Rules For Miter SawsService Reaching with Your Hand Under a Coasting Blade is Dangerous Some dust created by power Double Insulated Tools Extension Cords Electrical RequirementsElectric Brake Dust Bag and Dust Elbow Used to collect saw dust Getting To Know Your Miter SawPage Tools for Assembly & Alignment Unpacking & Checking ContentsInstallation And Removal Of The Blade AssemblyOuter Washer Inner Washer Blade Bolt Left Hand Thread ShoulderAssembling Dust Elbow Dust Bag Assembly Attaching Miter Lock KnobMiter Gauge Lock Knob Shaft Dust Bag Port ElbowChecking 0 Bevel Adjustment Adjustments3mm L Wrench Access Hole Bevel Pointer Calibrating Blade atChecking Right Bevel Stop 3mm L Wrench Right Access Hole Bevel PointerCalibrating Right Bevel Stop Combination SquareChecking Left Bevel Stop Adjusting Bevel Lock Lever TensionCalibrating Left Bevel Stop Blade Bevel Lock Combination Square LeverFence Alignment Blade Square to FenceFence Blade Combination Square Hex Fence Fence HexBolts Knob Knob BoltsKerf Insert Replacement Miter Scale Indicator AdjustmentScrew AccessPhillips HoleScrewdriver Miter Scale Indicator Screws Kerf InsertMounting Applications Transporting, Placement & MountingLifting Saw Mounting to WorkbenchPortable Mounting Using Clamps Adjusting the Four Position Switch HandleSetting Main Handle Desired Position Adjusting the Four-Position Handle Lock Clamp TensionBody and Hand Position Basic Saw OperationsCorrect Incorrect Use LipWorkpiece Clamp Workpiece SupportLong workpiece support Workpiece ClampFlat Head Machine Screws Auxiliary Fence Blade Slot Auxiliary FenceMiter Detent Override Switch ActivationTo Engage To DisengageSliding Base Sliding Base and Fence ExtensionsBase Extensions Sliding FenceMiter Cut Saw OperationsFollow these instructions for making your miter cut Workpiece Clamp Miter Scale Detents Miter Lock KnobBevel Range Selection Bevel CutTo operate in Bevel Range 0 to 45 Right To operate in Bevel Range 47 Left to 47 RightFollow these instructions for making Compound CutsYour bevel cut Follow these instructions for making your compound cutFor Use As Crown Stop Flip-Up Crown Stops Length StopFor Storage On The Tool For Use As a Length StopCutting Crown Molding Cutting Base MoldingInside Corner of wallCrown Molding Laying Flat on Table Miter and Bevel Settings for Standard Crown Molding CutsWhen Crown Molding is Lying Flat on Table Miter Bevel Tilt Setting Inside Corner When Workpiece Angled Against Fence AssumptionsCrown Molding Angled to Table and Fence For any Crown MoldingCutting Bowed Material Special CutsCutting Round or Irregularly Shaped Material Workpiece Clamp No Gap at this Point Fence Bowed MaterialService Maintenance & LubricationCleaning Carbon BrushesElectrical Troubleshooting Guide TroubleshootingCare of Blades Tool LubricationTroubleshooting Guide General MS1221 Horizontal Quick Clamp AccessoriesMS1220 Folding Stand with Wheels Page Página IndiceSeguridad Normas generales de seguridad para herramientas Herramientas necesarias para el ensamblajeArea de trabajo SeguridadSeguridad personal Seguridad eléctricaServicio Utilización y cuidado de las herramientasGroso Poner LA Mano Bajo UNA Hoja QUE AUN Gira POR Inercia Seguridad Freno eléctrico Requisitos eléctricosHerramientas con aislamiento doble Cordones de extensiónMovimiento suave del protector inferior Familiarización con la sierra para cortar ingletesPage Herramientas necesarias para el ensamblaje y la alineación Desempaquetado y comprobación del contenidoLista de comprobación de las piezas sueltas Escuadra de combinación no incluidaInstalación y remoción de la hoja EnsamblajePlaca de CubiertaDe inglete Ensamblaje continuaciónPomo de fijación De inglete Eje Bolsa para polvoCalibración de la hoja a 0º AjustesComprobación del ajuste De bisel a Calibración del tope de bisel De 45 a la derecha Ajustes continuaciónEscuadra de combinación Calibración del tope de bisel De 45 a la izquierdaHoja Mesa Alineación del tope-guía Hoja en ángulo recto Con el tope-guíaTope-guía Hoja Pomo delIndicador de la Escala de Ingletes Ajuste del indicador de la Escala de ingletesReemplazo del accesorio Aplicaciones de montaje Transporte, colocación y montajeCómo levantar la sierra Banco de trabajoAjuste del mango interruptor de cuatro posiciones Montaje de la sierraMontaje portátil utilizando abrazaderas Ajuste del mango principal en La posición deseadaPosición del cuerpo y de las manos Operaciones básicas de la sierraUso correcto Uso incorrecto Abrir Reborde AbrazaderaAbrazadera para la pieza de trabajo Soporte de la pieza de trabajoSoporte de piezas de trabajo largas Abrazadera para la Pieza de trabajoTope-guía auxiliar Operaciones básicas de la sierra continuaciónTornillos de Tope-guía Auxiliar Ranura para la hojaSobrecontrol del retén Del inglete Activación del interruptorPara acoplarlo Para desacoplarloExtensiones de la base y del tope-guía deslizantes Corte a inglete Operaciones de la sierraSiga estas instrucciones para hacer un Corte a inglete RetenesCorte en bisel Operaciones de la sierra continuaciónSelección del intervalo de biseles Palanca De fijación De bisel PerillaSiga estas instrucciones para hacer Un corte compuesto Cortes compuestosSiga estas instrucciones para hacer el corte en bisel Pieza de trabajo Ángulo de IngletePara almacenamiento en la herramienta Para utilización como tope de moldura de techoPara utilización como tope de longitud Instrucciones para instalar los topes de moldura de techoCorte de moldura de techo Corte de moldura de baseMoldura que se corta IzquierdaMoldura de techo colocada horizontalmente sobre la mesa Cuando la pieza está en ángulo contra el tope-guía Para cualquier moldura de techoCorte de material redondo o que tenga forma irregular Cortes especialesCorte de material arqueado Servicio Mantenimiento y lubricaciónEscobillas de carbón Banda motrizCuidado de las hojas Localización y reparación de averíasCojinetes Guía de localización y reparación de averías eléctricasGuía de localización y reparación de averías generales Aumenta la capacidad para material a 20 pies AccesoriosBase de soporte portátil T3B TracRac con ruedas Page 100 Table des matières106 107Sécurité personnelle SécuritéSécurité électrique Zone de travailDe graves blessures Utilisation et entretien de l’outilRéparation Sécurité Sécurité Frein électrique Spécifications électriquesDouble isolation RallongesCordon d’alimentation Fournit le courant au moteur Familiarisez-vous avec votre scie à ongletPoignée de transport avant Utilisée pour soulever l’outil Page Outils nécessaires à l’assemblage et à l’alignement Déballage et vérification du contenuPose et dépose de la lame AssemblageDébranchez la prise avant tout ’éviter tout risque de blessureAssemblage du coude De poussière Et du sac à poussière Assemblage suiteBouton de blocage De l’onglet Axe Sac à poussièreRéglage de la lame sur RéglagesLame Aiguille du BiseauContrôle de la butée ’inclinaison à 45 à droite Réglages suiteRéglage de la butée ’inclinaison à 45 à droite Équerre CombinéeRéglage de la tension du levier De blocage de l’inclinaison Contrôle de la butée ’inclinaison à 45 à gaucheRéglage de la butée ’inclinaison à 45 à gauche Guide Lame Équerre Combinée Lame d’équerre par rapport Au guideInsert ’encoche Remplacement de l’insert ’encocheRéglage de l’aguille de ’échelle d’onglet Applications de montage Transport, positionnement et montagePour soulever la scie Montage à l’établiRéglage de la poignée principale à la position désirée Montage de la scieSerre-joints PoignéePosition du corps et des mains Opérations de base de la scieUtilisation correcte Utilisation incorrecte Serre-jointSerre-joint de pièce Support de l’ouvrageSupport d’ouvrages longs Bridées et supportées sur toute leur longueurGuide Auxiliaire Fente à lame Opérations de base de la scie suiteGuide auxiliaire Effacement du cran ’arrêt d’onglet Actionnement de l’interrupteurPour enclencher Pour déclencherRallonges de la base Embase coulissanteGuides coulissants Pour démonter temporairement un guide coulissantCoupe à l’onglet Opérations de la scieCrans d’arrêt ’ongletSciage en biseau Opérations de la scie suiteSélection de la plage d’inclinaison Du biseau BoutonSuivez ces instructions pour pratiquer Votre coupe composée Coupes composéesSuivez ces instructions pour effectuer une coupe en biseau Pour une utilisation en butée de couronne Butées de couronne Escamotables/Butée de longueurPour le rangement sur l’outil Pour une utilisation en butée de longueurCoupe de moulures Coupe de moulures de baseEn couronne 101Corniche posée à plat sur la table de la scie Moulures en couronne reposant à plat sur la table102 Corniche inclinée contre le guide Pour toutes les corniches103 Coupe de matériaux courbés Coupes spécialesCoupe de matériaux ronds Ou de forme irrégulière 104Entretien Maintenance et lubrificationBalais de charbon Courroie d’entraînementEntretien des lames Lubrification de l’outil DépannageRoulements Guide de dépannage Électrique107 Guide de dépannage Généralités108 AccessoiresMS1220 Pied pliant avec roues MS1221 Bride rapide horizontale109 110 111 Limited Warranty of Bosch Portable and Benchtop Power Tools

4212L specifications

The Bosch Power Tools 4212L is a highly innovative and versatile tool that caters to the needs of both amateur and professional craftsmen. Designed for precision and efficiency, it stands out with its robust features and advanced technologies, making it an essential addition to any toolbox.

One of the main features of the 4212L is its powerful 15-amp motor, which delivers a remarkable 4,500 RPM. This power allows users to tackle various materials with ease, whether it’s cutting through hardwood, laminate, or even metal. The tool’s speed settings are adjustable, offering versatility in applications and allowing users to customize the tool’s performance based on the specific material being worked on.

The Bosch 4212L also incorporates a high-quality laser guide system that enhances precision. This technology ensures that users have a clear line of sight for accurate cuts, reducing the chances for errors. The integrated laser is easily adjustable, allowing for quick alignment and setup, which saves time and enhances efficiency on the job site.

Another key characteristic of the Bosch 4212L is its dual bevel feature. This allows for compound miter cuts up to 45 degrees in both directions, expanding the range of cuts that can be made. This feature is particularly useful for crown molding and other intricate trim work, providing users with the flexibility needed for more complex projects.

In terms of safety, Bosch has included various design features to protect users during operation. The 4212L is equipped with a soft start feature, which minimizes kickback when the tool is powered up. Additionally, the electric brake works to stop the blade quickly after the trigger is released, enhancing safety during operation.

The overall build quality of the Bosch 4212L reflects durability and reliability. Its sturdy construction is designed to withstand heavy use, ensuring longevity even in demanding work environments. The tool also features an ergonomic handle design, providing comfort and reducing fatigue, which is crucial during prolonged use.

In summary, the Bosch Power Tools 4212L brings together power, precision, and safety in a single, user-friendly package. With its impressive motor, adjustable laser guide, dual bevel capabilities, and safety features, it stands out as a top choice for anyone seeking a high-performance cutting tool. Whether you are a DIY enthusiast or a seasoned professional, the Bosch 4212L is engineered to meet your cutting needs efficiently and effectively.
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