Makita DCS 7300 ContrBle de la tension de la chaine, Frein de chaine, Liberer le frein a main

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ContrBle de la tension de la chaine

Une tension correcte de la chaine est realisee lorsque la chaine s’appliquesur le rail inferieuret qu’elle peut encore Qtre legerement ecartee du guide a la main.

Ce faisant, le frein de la chaine doit etre libere.

Contrdler frequemment la tension de la chaine, les chaines neuves ayant tendance a s’allonger !

Par consequent, verifier souvent la tension de la chaine le moteur &ant arrete.

REMARQUE:

En pratique, on devrait utiliser alternativement2 a 3 chaines de sciage.

Pour atteindreune usure regulieredes rails, on devra retourner le guide de la chaine lors du changement de la chaine.

Frein de chaine

Les modeles DCS 6400, 6401, 7300. 7301, 7900. 7901 sont equipes en serie d’un frein de chaine a declenchement d’acceleration. Si un contrecoup se produit (kickback),dO a un heurt de la pointe du guide contre le bois (voir chapitre ((CONSIGNES DE SECURITEn a la page 45), le frein de chaine se declenche automatiquement en cas de contrecoup suffisamment fort par inertie de masse.

La chaine de sciage est interrompue pendant une fraction de seconde.

Lefrein de chainen’est prevue que pour des cas d’urgence et pour le blocage de la chaine avant le demarrage.

ATTENTION : Ne jamais utiliser la tronGonneuse quand le frein de chaine est declenche (sauf pendapt le contrBle,voir chaine (( ContrBle du frein de chaine N),sinon la tronGon- neuse risque de s’abimer en tres peu de temps !

Desserrer imllerativementle frein de chaine avant de com- mencer a travailler I

Enclencher le frein de chaine (bloquer)

En cas de contrecoup suffisamment fort, le frein de chaine se

declenche automatiquement dO a I’acceleration rapide de

la chaine de sciage et a I’inertiede masse du protege-main(I).

Lors d’un enclenchement manuel le protege-main (1 ) est pousse par la main gauche en direction de la pointe du guide de la chaine (fleche 1).

Liberer le frein a main

Tirer le protege-main (2) en direction de la poignee en etrier (fleche 2 ) jusqu’a son enclenchement. Le frein a frein est libere.

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Contents Manuel d’emploi et de securite DCS 6400,6401,7300,7301,7900,7901 Contents Page WARNlNGf Safety precautions for chain saw operatorsAdditional safety precautions Ansi B175.1-2000Compliance with Ansi -Standards Physical ConditionUse of the saw Transporting the chain sawChain saw operating instructions Working conditions Cutting instructionsMost common reactive forces are Kickback Pushback Pull-in KickbackReactiveforces duringthe cut, includingkickback Saw chain cutter sharpness To avoid kickbackSpeed of contact at which the cutter contacts ObjectPushback To avoid pushbackTo avoid pull-in FellingThen, determine the placement of the felling notch Felling instructionsNoise of your engine may drown any warning call First CutBegin the felling cut slighty higher than the felling Plunge-Cut MethodSectioning Method Limbing BuckingMaintenance and Repair Attempt any maintenance or repair work not deCross cut By your Makita service shop only Maintaining and storing the sawDenomination of components Identification plate Muffler with spark arrester screenTechnical data Putting Into Operation Mounting the guide bar and saw chainTightening the saw chain Checking the chain tension Releasing the chain brakeFuel Gasoline 50l 40lGuide RefuellingChecking the chain lubrication Adjusting the chain lubricationEngine must be switched off Starting the engine Cold-startingWarm starting Stopping the engineAdjusting the carburetor Working in winter025 65 mm Min Sharpening the saw chainFiles and how to work with them FileCleaning the brake band and sprocket interior Replacing the suction head Cleaning the guide barReplacing the saw chain Cleaning the air filter Checking the ignition spark Replacing the return spring Replacing the starter cable Replacing the return springCAREFUL1Injury hazard! The return spring can pop out Mounting the fan housing Replacinglcleaning the spark arrester screenInstructions for periodic maintenance Service, spare parts and guaranteeGuarantee Spare partsMalfunction System Observation CauseDCS 7900,7901 Extract from the spare parts listDCS 7300,7301 Page DCS 6400,6401,7300,7301 , 7900,7901 Additionnels Mesures de securite supplementaires Condition physique Transport de la tronqonneuse Utilisation de la tronGonneusePorter le casque, les lunettes et acoustiques de protection Instructionsde ravitaillement @ @ Ravitaillementen carburantDemarrage Instructions de coupe ’huile ou de graisseIA-A Choc de recul KickbackAffQtage des plaquettes de coupe de la Chalne Pour eviter le choc de reculLaforce de choc derecul est proportionnelleaI’impact Les limiteurs de profondeursLe recul Pour eviter le reculPour eviter la traction AbattageInstructions d’abattage Methode de sectionnement Methode de coupe en plongeeEbranchage DebitageCouDe transversale Entretien et reparationEntretien et stockage de la tronqonneuse Designation des pieces Silencieux avec pare-etincellesCaracteristiques techniques Mise EN Route Montage du guide et de la chaine de sciageTendre la chaine de sciage ContrBle de la tension de la chaine Frein de chaineEnclencher le frein de chaine bloquer Liberer le frein a mainHuile de chaine de sciage CarburantsMelange carburant Remplissage des reservoirs Remarque importante pour les huiles de chaine de sciage bioVerifier le graissage de la chaine Reglage du graissage de la chaine0Remarque Effectuer que si le moteur est arrete! StopDemarrer le moteur Verifier le frein de chaineReglage du carburateur Mincll. .ll~.,ral Affirtage de la chaine de sciageLime et guidage de la lime NettoyerIinterieurde labandedefrein dechaine Et de la roue a chaineNouvelle chaine de sciage Remplacement de la crepine daspirationNettoyer le guide de la chaine Nettoyage du filtre d’air Ne pas nettoyer le filtre a air a I’essenceRemplacement de bougie Verification de I’etincelle d’allumagePage Changement I nettoyage du pare-etinceiles Montage du carter du ventilateurNettoyage de I’espace cylindre Indications de maintenance et d’entretien periodiques AockagePieces de rechange GarantieExtrait de la liste des pieces de rechange DCS 6400,6401 DCS 7300, 7301 DCS 7900Page Makita Canada Inc Dolmar Division Forbes Street Whitby, Ontario Canada, L I N

DCS 7301, DCS 7900, DCS 6400, DCS 7300, DCS 7901 specifications

Makita, a leading manufacturer of power tools, has a robust lineup of professional-grade chainsaws, including the DCS 7900, DCS 7901, DCS 7300, DCS 7301, and DCS 6401 models. Each chainsaw is designed with advanced technology to meet the demanding needs of forestry and construction professionals.

The Makita DCS 7900 is a powerful chainsaw equipped with a 79cc engine that delivers high cutting performance. It features a lightweight design combined with a powerful engine, allowing for maximum maneuverability. The saw's decompression valve ensures easy starting, while the adjustable chain oiler provides lubrication tailored to various cutting conditions. Its anti-vibration technology minimizes user fatigue during prolonged use, making it an excellent choice for professionals.

The DCS 7901 is an enhanced version of the DCS 7900, featuring an electronically controlled ignition system that optimizes fuel combustion for increased efficiency and lower emissions. This model maintains the same robust power but with improved fuel economy, making it an environmentally friendly option without sacrificing performance. The DCS 7901 also includes a heavy-duty air filter system, ensuring longer operation times by extending the life of the engine.

The DCS 7300 and DCS 7301 models are mid-range chainsaws that deliver exceptional power and versatility. The DCS 7300 features a 73cc engine, offering a perfect balance of weight and power, ideal for both felling and limbing. The DCS 7301 shares similar specifications with the DCS 7300 but includes additional features such as a tool-less chain adjustment system and a larger fuel tank for increased run time. Both models come with advanced anti-vibration technologies that ensure smooth operation.

Finally, the Makita DCS 6401 is a compact yet powerful chainsaw designed for users who require maneuverability without compromising on power. Equipped with a 64cc engine, this chainsaw is suitable for a variety of cutting tasks. It features a lightweight construction, making it ideal for prolonged use in tight spaces. The DCS 6401 also has a high-performance air filtration system, which increases engine life and efficiency.

In summary, all Makita chainsaws in this lineup are designed with user comfort and efficiency in mind. With powerful engines, advanced technology, and robust features, the DCS 7900, DCS 7901, DCS 7300, DCS 7301, and DCS 6401 ensure reliability and performance for professional users in demanding environments.
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