Dolmar MS-250.4 Resharpening the Cutting Tool, Stopping, Adjustment of LOW-SPEED Rotation Idling

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B: Startup after warm-up operation

1)Push the primer pump repeatedly.

2)Keep the throttle lever at the idling position.

3)Pull the recoil starter strongly.

4)If it is difficult to start the engine, open the throttle by about 1/3. Pay attention to the cutter blade which may rotate.

Attention in Operation

When the engine is operated upside down, white smoke may come out from the muffler.

STOPPING

STOP

1)Release the throttle lever (6) fully, and when the engine rpm has lowered, set the I-O switch to STOP the engine will now stop.

2)Be aware that the cutting head may not stop immediately and allow it to slow down fully.

I-O switch (1)

Throttle lever (6)

ADJUSTMENT OF LOW-SPEED ROTATION (IDLING)

When it is necessary to adjust the low-speed rotation (idling), perform it by the carburetor adjusting screw.

CHECKUPOF LOW-SPEED ROTATION

Set the low-speed rotation to 3000/min.

If it is necessary to change the rotation speed, regulate the adjusting screw (illustrated on the left), with Phillips screwdriver.

Turn the adjusting screw to the right, and the engine rotation will increase. Turn the adjusting screw to the left, and the engine rotation will drop.

The carburetor is generally adjusted before shipment. If it is necessary to readjust it, please contact Authorized Service Agent.

Adjusting screw

Carburetor

RESHARPENING THE CUTTING TOOL

CAUTION : The cutting tools mentioned below must only be resharpened by an authorized facility. Manual resharpening will result in imbal- ances of the cutting tool causing vibrations and damage to the equipment.

cutter blade (star blade (4 teeth), eddy blade (8 teeth))

An expert resharpening and balancing service is provided by Authorized Service Agents.

NOTE : To increase the service life of the cutter blade (star blade, eddy blade) it may be turned over once, until both cutting edges have become blunt.

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Contents MS-250.4MS-251.4 Symbols Safety Instructions General InstructionsIntended use of the machine Personal protective equipmentRefuelling Maintenance instructions Method of operationKickback Kickback preventionWhen asking for help, please give the following information Never straighten or weld damaged cutting toolsFirst Aid PackagingTechnical Data MS-250.4, MS-251.4 MS-251.4 MS-250.4 ModelDesignation of Parts MS-250.4 Brush Cutter MS-251.4 String trimmerFor machines with U Handle models Mounting of HandleFor machines with Loop Handle Mounting of Protector For MS-250.4 with the hex wrench still in place Mounting of Cutter Blade or Nylon Cutter HeadMounting of nylon cutting head Before Start of Operation Point 1 in Replacement of Oil Oil GaugeInspection and Refill of Engine Oil Refueling Storageof Machineand RefilltankCorrect Handling of Machine Points in Operation and HOW to StopStarting For machine with U Handle or Loop Handle OpenAdjustment of LOW-SPEED Rotation Idling Resharpening the Cutting ToolStopping Startup after warm-up operationOperation Nylon Cutting HeadReplacing the nylon cord Daily checkup and maintenance Replacement of Engine OILServicing Instructions Points in Handling Air Cleaner Element Cleaning of AIR CleanerPoints on OIL Cleaning of Fuel Filter Replacement of Fuel PipeCleaning of Parts Replacement of Gaskets and PackingsFault location StorageOperating time Troubleshooting Emission Compliance Period Manufacturers Warranty Coverage Owners Warranty ResponsibilitiesWhat is Covered What is not CoveredHOW to File a Claim Waranty Commencement DateParts Covered Under the California Emission Warranty Where to GET Warranty ServiceMaintenance Statements Repair and Replacement of EMISSION-RELATED Parts Emission Component Defect Warranty Period Parts CoveredObtaining Warranty Service HOW to Make a Claim Symboles DolmarConsignes DE Sécurité Instructions généralesUtilisation spéciale de la machine Équipement personnel de protectionRavitaillement MètresInstructions de maintenance Méthode dutilisationEffet de retour Outils de coupePremier secours EmballageCaracteristiques Techniques MS-250.4, MS-251.4 MS-251.4 MS-250.4 ModèleMS-250.4 Débroussailleuses MS-251.4 Taille-borduress Nomenclature DES PiècesPour les modèles à polgnée en U Montage DE LA PoignéeMachines à poignée simple Montage DU Dispositif DE Protection Pour MS-250.4Pour MS-250.4, MS-251.4 Utilisation du protecteur pour lame métallique/lame à filPour MS-250.4 avec clé hexgonale étant toujours en place Montage DE LA Lame DE Coupe OU DE LA Téte DE Coupe À FILMontage du dispositif de coupe à fil Avant Mise EN Marche Controle ET Ravitaillement DE L’HUILE MoteurRavitaillement Entrepôsage DE L’APPAREIL ET DU Réservoir DE RavitallementManipulation Correcte DE LA Machine Consignes DE Mise EN Marche ET Arrêt DE LA MachineFixation du harnais RetraitPour les machines à poignée en U ou en Boucle FermerOuvrir Consignes de sécurité lors du fonctionnementReglage DE LA Marche a Petite Vitesse AU Ralenti Réaffûtage DE Loutil DE CoupeVerification DE LA Rotation a Petite Vitesse Tête de coupe à fil en nylon Contrôle et opérations de maintenance réguliers Remplacement DE L’HUILE a MoteurInstructions Relatives AUX Réparations Nettoyage DU Filtre À AIR Essentiels Pour L’HUILERemplacement DU Tuyau a Carburant Remplacement DES Joints ET GarnituresContôle DE LA Bougie Dallumage Graissage DU Carter D’ENGRENAGERemisage Localisation des défautsDurée de marche Depannage Símbolos Lista de contenidos PáginaInstrucciones DE Seguridad Instrucciones generalesEquipo Personal de Protección Puesta en Marcha de la Desbrozadora/CortabordesReabastecimiento Método de trabajo ContragolpeHerramientas de Corte Cabezal de NylonPrimeros Auxilios Nunca rectificar o soldar las herramientas de corte dañadasEmbalaje Datos Técnicos MS-250.4, MS-251.41 Denominación DE Partes CortabordesPara máquinas con manillar en U Montaje DEL ManillarPara máquinas con manillar cerrado Montaje DEL Protector USO DE Protector Parahojas METALICAS/CORTADOR DE CuerdaMontaje DE LA Hoja DE Corte O Cabezal DE Corte DE Nylon Montaje de la cabeza de corte de nylonInspeccióny Reabastecimientode Aceitedemotor Antes DE Empezar EL TrabajoPunto 1 de reabastecimiento de aceite bayoneta de aceite Reabastecimiento DE Combustible Almacenaje DE Lamáquinay DEL Tanque DE ReabastecimientoPuntos Relacionados CON EL Manejo Y LA Parada USO Correcto DE LA MáquinaArranque Máquina con manillar U ó cerrado Precauciones durante la operaciónAfilar LA Herramienta DE Corte Ajuste DEL Giro a Baja Velocidad RalentíArrancar después de la operación de calentamiento CuidadoOperación CabezaldenylonSustitución del cabezal de Nylon Cambio DEL Aceite DEL Motor Instrucciones DE ServicioComprobación y mantenimiento diarios Puntos Relacionados Conel Aceite Limpieza DEL Depurador DE AireManipulación del elemento del filtro de aire Comprobación DE LA Bujía Suministro DE Grasa a LA Caja DE EngranajesLimpieza DEL Filtro DE Combustible Cambio DEL Tubo DE CombustibleAtención después de almacenamiento de largo tirmpo AlmacenamientoLocalizacion de averias Tiempo de Iinvestigación DE Averías Dolmar GmbH Postfach 70 04 Hamburg Germany