Dolmar MS-250.4 Servicing Instructions, Replacement of Engine OIL, Daily checkup and maintenance

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Align the protrusion on the underside of the cover with the slots of the eyelets.

Then push cover firmly onto the housing to secure it.

Cover

Protrusion

Slot of eyelet

SERVICING INSTRUCTIONS

CAUTION : Before doing any work on the Brush cutter/String trimmer, always stop the engine and pull the plug cap off the spark plug (see “checking the spark plug”).

Always wear protective gloves!

To ensure a long service life and to avoid any damage to the equipment, the following servicing operations should be performed at regular intervals.

Daily checkup and maintenance

Before operation, check the machine for loose screws or missing parts. Pay particular attention to the tightness of the cutter blade or nylon cutting head.

Before operation, always check for clogging of the cooling air passage and the cylinder fins. Clean them if necessary.

Perform the following work daily after use:

Clean the Brush cutter/String trimmer externally and inspect for damage.

Clean the air filter. When working under extremely dusty conditions, clean the filter the severall times a day.

Check the blade or the nylon cutting head for damage and make sure it is firmly mounted.

Check that there is sufficient difference between idling and engagement speed to ensure that the cutting tool is at a standstill while the engine is idling (if necessary reduce idling speed).

If under idling conditions the tool should still continue to run, consult your nearest Authorized Service Agent.

Check the functioning of the I-O switch, the lock-off lever, the control lever, and the look button.

REPLACEMENT OF ENGINE OIL

Deteriorated engine oil will shorten the life of the sliding and rotating parts to a great extent. Be sure to check the period and quantity of replacement.

ATTENTION : In general, the engine main unit and engine oil still remain hot just after the engine is stopped. In replacement of oil, confirm that the engine main unit and engine oil are sufficiently cooled down. Otherwise, there may remain a risk of scald.

Note: If the oil filled above the limit, it may be contaminated or may catch fire with white smoke.

Interval of replacement : Initially, every 20 operating hours, and subsequently every 50 operating hours

Recommended oil : SAE10W-30 oil of API Classification SF Class or higher (4-stroke engine oil for automobile)

In replacement, perform the following procedure.

Fuel tank cap

1)Confirm that the tank cap is tightened securely.

2)Detach the oil gauge.

Keep the oil gauge free from dust or dirt.

Oil gauge

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Contents MS-250.4MS-251.4 Symbols Intended use of the machine Safety InstructionsGeneral Instructions Personal protective equipmentRefuelling Kickback Maintenance instructionsMethod of operation Kickback preventionFirst Aid When asking for help, please give the following informationNever straighten or weld damaged cutting tools 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 trimmerMounting of Handle For machines with U Handle modelsFor machines with Loop Handle Mounting of Protector Mounting of Cutter Blade or Nylon Cutter Head For MS-250.4 with the hex wrench still in placeMounting of nylon cutting head Point 1 in Replacement of Oil Oil Gauge Before Start of OperationInspection and Refill of Engine Oil Refueling Storageof Machineand RefilltankPoints in Operation and HOW to Stop Correct Handling of MachineStarting For machine with U Handle or Loop Handle OpenStopping Adjustment of LOW-SPEED Rotation IdlingResharpening the Cutting Tool Startup after warm-up operationNylon Cutting Head OperationReplacing the nylon cord Replacement of Engine OIL Daily checkup and maintenanceServicing Instructions Cleaning of AIR Cleaner Points in Handling Air Cleaner ElementPoints on OIL Cleaning of Parts Cleaning of Fuel FilterReplacement of Fuel Pipe Replacement of Gaskets and PackingsFault location StorageOperating time Troubleshooting Emission Compliance Period Manufacturers Warranty Coverage Owners Warranty ResponsibilitiesHOW to File a Claim What is CoveredWhat is not Covered Waranty Commencement DateWhere to GET Warranty Service Parts Covered Under the California Emission WarrantyMaintenance Statements Repair and Replacement of EMISSION-RELATED Parts Emission Component Defect Warranty Period Parts CoveredObtaining Warranty Service HOW to Make a Claim Symboles DolmarUtilisation spéciale de la machine Consignes DE SécuritéInstructions générales Équipement personnel de protectionRavitaillement MètresEffet de retour Instructions de maintenanceMéthode dutilisation 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 PiècesMontage DE LA Poignée Pour les modèles à polgnée en UMachines à poignée simple Pour MS-250.4, MS-251.4 Montage DU Dispositif DE ProtectionPour MS-250.4 Utilisation du protecteur pour lame métallique/lame à filMontage DE LA Lame DE Coupe OU DE LA Téte DE Coupe À FIL Pour MS-250.4 avec clé hexgonale étant toujours en placeMontage 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 RavitallementFixation du harnais Manipulation Correcte DE LA MachineConsignes DE Mise EN Marche ET Arrêt DE LA Machine RetraitOuvrir Pour les machines à poignée en U ou en BoucleFermer Consignes de sécurité lors du fonctionnementRéaffûtage DE Loutil DE Coupe Reglage DE LA Marche a Petite Vitesse AU RalentiVerification DE LA Rotation a Petite Vitesse Tête de coupe à fil en nylon Remplacement DE L’HUILE a Moteur Contrôle et opérations de maintenance réguliersInstructions Relatives AUX Réparations Nettoyage DU Filtre À AIR Essentiels Pour L’HUILEContôle DE LA Bougie Dallumage Remplacement DU Tuyau a CarburantRemplacement DES Joints ET Garnitures Graissage DU Carter D’ENGRENAGERemisage Localisation des défautsDurée de marche Depannage Símbolos Lista de contenidos PáginaEquipo Personal de Protección Instrucciones DE SeguridadInstrucciones generales Puesta en Marcha de la Desbrozadora/CortabordesReabastecimiento Herramientas de Corte Método de trabajoContragolpe Cabezal de NylonNunca rectificar o soldar las herramientas de corte dañadas Primeros AuxiliosEmbalaje Datos Técnicos MS-250.4, MS-251.41 Denominación DE Partes CortabordesMontaje DEL Manillar Para máquinas con manillar en UPara 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 nylonAntes DE Empezar EL Trabajo Inspeccióny Reabastecimientode AceitedemotorPunto 1 de reabastecimiento de aceite bayoneta de aceite Reabastecimiento DE Combustible Almacenaje DE Lamáquinay DEL Tanque DE ReabastecimientoUSO Correcto DE LA Máquina Puntos Relacionados CON EL Manejo Y LA ParadaArranque Máquina con manillar U ó cerrado Precauciones durante la operaciónArrancar después de la operación de calentamiento Afilar LA Herramienta DE CorteAjuste DEL Giro a Baja Velocidad Ralentí CuidadoCabezaldenylon OperaciónSustitución del cabezal de Nylon Instrucciones DE Servicio Cambio DEL Aceite DEL MotorComprobación y mantenimiento diarios Limpieza DEL Depurador DE Aire Puntos Relacionados Conel AceiteManipulación del elemento del filtro de aire Limpieza DEL Filtro DE Combustible Comprobación DE LA BujíaSuministro DE Grasa a LA Caja DE Engranajes Cambio DEL Tubo DE CombustibleAlmacenamiento Atención después de almacenamiento de largo tirmpoLocalizacion de averias Tiempo de Iinvestigación DE Averías Dolmar GmbH Postfach 70 04 Hamburg Germany