Makita EM4250CA, EM4251CA manual Method of operation, Kickback prevention, Cutting Tools

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Method of operation

–Only use the Brush cutter/String trimmer in good light and visibility. During the winter season beware of slippery or wet areas, ice and snow (risk of slipping). Always ensure a safe footing.

–Never cut above waist height.

–Never stand on a ladder and run the Brush cutter/String trimmer.

–Never climb up into trees to perform cutting operation with the Brush cutter/ String trimmer.

–Never work on unstable surfaces.

–Remove sand, stones, nails etc. found within the working range. Foreign particles may damage the cutting tool and can cause dangerous kick-backs.

–Before commencing cutting, the cutting tool must have reached full working speed.

Kickback

–When operating the brush cutter, uncontrolled kickback may occur.

–This is particularly the case when attempting to cut within a blade segment between 12 and 2 o’clock.

–Never apply the brush cutter within a segment between 12 and 2 o’clock.

–Never apply this segment of the brush cutter blade to solids, such as bushes and trees, etc., having a diameter in excess of 3 cm or the brush cutter will be deflected at great force with the risk of injuries.

Kickback prevention

To avoid kickbacks, observe the following:

–Operation within a blade segment between 12 and 2 o’clock presents positive hazards, especially when using metal cutting tools.

–Cutting operations within a blade segment between 11 and 12 o’clock, and between 2 and 5 o’clock, must only be performed by trained and experi- enced operators, and then only at their own risk.

Easy cutting with almost no kickback is possible within a blade segment between 8 and 11 o’clock.

Cutting Tools

Employ only the correct cutting tool for the job in hand.

EM4250/EM4250CA, EM4251/EM4251CA with cutter blade (Star Blade (4 teeth), Eddy Blade (8 teeth)), Nylon cutting head

For cutting thick materials, such as weed, high grass, bushes, shrubs, underwood, thicket etc. (max. 2 cm dia. thickness). Perform this cutting work by swinging the brush cutter evenly in half-circles from right to left (similar to using a scythe).

Maintenance instructions

–The condition of the cutter, in particular of the cutting tool of the protective devices and also of the shoulder strap must be checked before commencing work. Particular attention is to be paid to the cutting blades which must be correctly sharpened.

–Turn off the engine and remove spark plug connector when replacing or sharpening cutting tools, and also when cleaning the cutter or cutting tool.

Caution:

Kickback

Diagrammatic flgure

Diagrammatic flgure

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Contents EM4250CA EM4251CA English SymbolsGeneral Instructions Safety InstructionsIntended use of the machine Personal protective equipmentRefuelling Method of operation Maintenance instructionsKickback Kickback preventionNever straighten or weld damaged cutting tools When asking for help, please give the following informationFirst Aid PackagingEM4251/EM4251CA EM4250/EM4250CA Model Technical Data EM4250, EM4251EM4250/EM4250CA Brush Cutter EM4251/EM4251CA String trimmer Designation of PartsFor machines with Loop Handle models Mounting of HandleFor machines with U Handle models Mounting of Protector Mounting of nylon cutting head Mounting of Cutter Blade or Nylon Cutter HeadFor EM4250/EM4250CA with the hex wrench still in place Inspection and Refill of Engine Oil Point 1 in Replacement of Oil Oil GaugeBefore Start of Operation Storageof Machineand Refilltank RefuelingStarting Points in Operation and HOW to StopCorrect Handling of Machine Open For machine with U Handle or Loop HandleResharpening the Cutting Tool Adjustment of LOW-SPEED Rotation IdlingStopping Startup after warm-up operationReplacing the nylon cord Nylon Cutting HeadOperation Servicing Instructions Replacement of Engine OILDaily checkup and maintenance Points on OIL Cleaning of AIR CleanerPoints in Handling Air Cleaner Element Replacement of Fuel Pipe Cleaning of Fuel FilterCleaning of Parts Replacement of Gaskets and PackingsStorage Fault locationOperating time Troubleshooting Emission Compliance Period MANUFACTURER’S Warranty Coverage Page Every 8 hours daily Every 8 hours daily ProcedureFederal Emission Component Defect Warranty Obtaining Warranty Service HOW to Make a Claim Français SymbolesInstructions générales Consignes DE SécuritéUtilisation spéciale de la machine Équipement personnel de protectionMètres RavitaillementMéthode dutilisation Instructions de maintenanceEffet de retour Outils de coupeEmballage Premier secoursCaracteristiques Techniques EM4250/EM4250CA, EM4251/EM4251CA Nomenclature DES Pièces Machines à poignée simple Montage DE LA PoignéePour les modèles à polgnée en U Montage DU Dispositif DE Protection Montage du dispositif de coupe à fil Montage DE LA Lame DE Coupe OU DE LA Téte DE Coupe À FILControle ET Ravitaillement DE L’HUILE Moteur Remplacement de l’huile Jauge d’huileAvant Mise EN Marche ENTREPÔSAGEDEL’APPAREILET Duréservoir DE Ravitallement RavitaillementConsignes DE Mise EN Marche ET Arrêt DE LA Machine Manipulation Correcte DE LA MachineFixation du harnais RetraitConsignes de sécurité lors du fonctionnement Pour les machines à poignée en U ou en BoucleReglage DE LA Marche a Petite Vitesse AU Ralenti Réaffûtage DE Loutil DE CoupeDémarrage après réchauffage Verification DE Larotationapetite VitesseFonctionnement Remplacement du fil en nylonTête de coupe à fil en nylon Instructions Relatives AUX Réparations Remplacement DE L’HUILE a MoteurContrôle et opérations de maintenance réguliers ESSENTIELSPOURL’HUILE Nettoyage DU Filtre a AIRRemplacement DES Joints ET Garnitures Remplacement DU Tuyau a CarburantContôle DE LA Bougie Dallumage Graissage DU Carter D’ENGRENAGELocalisation des défauts RemisageDurée de marche Depannage Lista de contenidos Página SimbolosInstrucciones generales Instrucciones DE SeguridadUso intentado de la máquina Equipo Personal de ProtecciónReabastecimiento Contragolpe Método de trabajoHerramientas de Corte Cabezal de NylonEmbalaje Nunca rectificar o soldar las herramientas de corte dañadasPrimeros Auxilios EM4251/EM4251CA EM4250/EM4250CA Modelo Datos Técnicos EM4250/EM4250CA, EM4251/EM4251CAEM4250/EM4250CA Desbrozadora EM4251/EM4251CA Cortabordes Denominación DE PartesPara máquinas con manillar cerrado Montaje DEL ManillarPara máquinas con manillar en U USO DE Protector Para Hojas METALICAS/CORTADOR DE Cuerda Montaje DEL ProtectorMontaje de la cabeza de corte de nylon Montaje DE LA Hoja DE Corte O Cabezal DE Corte DE NylonPara EM4250/EM4250CA con la llave hexagonal todavía puesuta Punto 1 de reabastecimiento de aceite bayoneta de aceite Antes DE Empezar EL TrabajoInspección Yreabastecimientode Aceitedemotor Almacenaje DE Lamáquinay DEL Tanque DE Reabastecimiento Reabastecimiento DE CombustibleArranque USO Correcto DE LA MáquinaPuntos Relacionados CON EL Manejo Y LA Parada Precauciones durante la operación Máquina con manillar U ó cerradoAjuste DEL Giro a Baja Velocidad Ralentí Afilar LA Herramienta DE CorteArrancar después de la operación de calentamiento CuidadoSustitución del cabezal de Nylon CabezaldenylonUtilización Comprobación y mantenimiento diarios Instrucciones DE ServicioCambio DEL Aceite DEL Motor Manipulación del elemento del filtro de aire Limpieza DEL Depurador DE AirePuntos Relacionados Conel Aceite Suministro DE Grasa a LA Caja DE Engranajes Comprobación DE LA BujiaLimpieza DEL Filtro DE Combustible Cambio DE LA Tubería DE CombustibleLocalizacion de averias AlmacenamientoAtención después de almacenamiento de largo tirmpo Tiempo de Iinvestigación DE Averías Page Advertencia
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EM4250, EM4251, EM4250CA, EM4251CA specifications

The Makita EM4251CA and EM4250CA models are the latest additions to Makita's robust range of outdoor power equipment, specifically designed for professional landscapers and gardening enthusiasts. These brushcutters are known for their powerful performance, ease of use, and advanced technologies that enhance efficiency and durability.

The Makita EM4251CA features a displacement of 25.4cc, while the EM4250CA is slightly larger, with a 30.5cc engine. Both models are equipped with a high-performance 2-stroke engine that delivers impressive power and torque for tackling thick grass, weeds, and underbrush. The engines are designed for low emissions and fuel consumption, contributing to environmentally friendly operation while maintaining compliance with the latest regulatory standards.

One of the standout features of these brushcutters is the Easy Start System, which significantly reduces the effort required to start the engine. This system incorporates a spring-assisted starter that provides a smooth and reliable start every time. Additionally, the models offer a semi-automatic choke system that adjusts fuel flow for optimal performance in varying conditions.

For user comfort, the EM4251CA and EM4250CA are designed ergonomically, with a lightweight construction that enhances maneuverability without compromising strength. The adjustable bike handle provides solid control during operation, minimizing user fatigue during lengthy tasks. Both models also feature anti-vibration technology that reduces vibrations transmitted to the user, ensuring a more comfortable experience.

A robust and durable design is another hallmark of Makita's brushcutters. The fuel tank is constructed from high-quality materials to resist impacts and environmental factors, while the shaft is reinforced to withstand rigorous use. The inclusion of a reinforced cutter head allows for versatile cutting options, accommodating both trimmer line and metal blades for various applications.

For added convenience, these models are equipped with a soft grip handle that provides comfort during extended use, alongside a quick-release harness that allows for swift transitions between tasks. Overall, the Makita EM4251CA and EM4250CA brushcutters represent a blend of power, efficiency, and user-oriented design, making them ideal tools for anyone serious about maintaining their outdoor spaces.

With their mix of advanced technology and practical features, the EM4251 and EM4250 models ensure that users can tackle tough landscaping jobs with confidence and ease, making them invaluable assets for both professionals and hobbyists alike.
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