Yard Machines MTD1840AVCC, MTD1640NAVCC Limbing, Bucking Using a Sawhorse, Vertical Cutting

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6 - GENERAL CUTTING INSTRUCTIONS

6-2. LIMBING

Limbing a tree is the process of removing the branches from a fallen tree. Do not remove supporting limbs (A) until after the log is bucked (cut) into lengths (Figure 6-2A). Branches under tension should be cut from the bottom up to avoid binding the chain saw.

WARNING

Never cut tree limbs while standing on tree trunk.

A

6-2A

6-3. BUCKING

Bucking is cutting a fallen log into lengths. Make sure you have a good footing and stand uphill of the log when cutting on sloping ground. If possible, the log should be supported so that the end to be cut off is not resting on the ground. If the log is supported at both ends and you must cut in the middle, make a downward cut halfway through the log and then make the undercut. This will prevent the log from pinching the bar and chain. Be careful that the chain does not cut into the ground when bucking as this causes rapid dulling of the chain.

When bucking on a slope, always stand on the uphill side.

1.Log supported along entire length: Cut from top (over- buck), being careful to avoid cutting into the ground (Figure 6-3A).

2.Log supported on 1 end: First, cut from bottom (under- buck) 1/3 diameter of log to avoid splintering. Second, cut from above (overbuck) to meet first cut and avoid pinching (Figure 6-3B).

3.Log supported on both ends: First, overbuck 1/3 diam- eter of log to avoid splintering. Second, underbuck to

meet first cut and avoid pinching (Figure 6-3C). NOTE: The best way to hold a log while bucking is to use a sawhorse. When this is not possible, the log should be raised and supported by the limb stumps or by using sup- porting logs. Be sure the log being cut is securely support- ed.

6-3A

6-3B

6-3C

6-4.BUCKING USING A SAWHORSE

For personal safety and ease of cutting, the correct position for vertical bucking is essential (Figure 6-4A).

VERTICAL CUTTING:

A.Hold the saw firmly with both hands and keep the saw to the right of your body while cutting.

B.Keep the left arm as straight as possible.

C.Keep weight on both feet.

CAUTION

While the saw is cutting, be sure the chain and bar are being properly lubricated.

B

A

C

6-4A

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Contents Operator’s Manual Table of Contents IntroductionGeneral Identification Safety FeaturesGeneral Information Other Safety Precautions Safety PrecautionsKickback Safety Precautions General Safety Precautions for Chain SAW Users More about KickbackKickback Safety Labels International SymbolsAssembly Requirements Assembly InstructionsTools for Assembly Most Units are Assembled AT the Factory Guide BAR / SAW Chain / Clutch Cover InstallationTo Adjust SAW Chain SAW Chain Tension AdjustmentTo Install SAW Chain Chain Brake Mechanical Test To Test Chain BrakeMixing Fuel Fuel and Lubrication SymbolsFuel and Lubrication Fuel Mixing Table Recommended FuelsTo Start Engine Operating InstructionsEngine PRE-START Checks Important Idling InformationChain Brake Operational Test RE-STARTING a Warm EngineTo Stop Engine SAW Chain / BAR LubricationGeneral Guidelines for Felling Trees General Cutting InstructionsFelling Felling a TreeBucking Bucking Using a SawhorseLimbing Vertical CuttingMaintenance Instructions Preventive MaintenanceFuel Filter To Clean AIR FilterAIR Filter Storing a Chain SAW Carburetor AdjustmentSpark Plug Removing a Unit from StorageChain Maintenance BAR / Chain MaintenanceGuide BAR Maintenance Chain Replacement Information Bar Length Drive LinksTroubleshooting the Engine ProblemParts List Model MTD1640NAV/ MTD1640NAVCCModel MTD1840AV/ MTD1840AVCC Parts No DescriptionMTD LLC Manuel de Utilisation Introductioin Tous NOS RemerciementsIdentification DES Principaux Idispositifs DE SecuritePrecautions Pour Eviter LES Rebonds Measures DE SecuritePrécautions Générales DE Sécurité Rebonds Conseils Supplemen Taires Etiquette Securite Pour RebondsSymboles Internationaux Instructions Pour Montage GUIDE-CHAINE / Chaine / Installation DU Carter D’EMBRAYAGEInstallation DU GUIDE-CHAINE Montage D’ELEMENTSReglage DE LA Chaine Installation DE LA ChaineReglage DE LA Tension DE LA Chaine Test Mecanique DU Chain Brake Test du Chain BrakeCarburant ET Lubrification Mise EN Marche DU Moteur FonctionnementVerification DU Moteur Informations Importantes DimmobilitéTest Operationnel DU Chain Brake Redemarrage D’UN Moteur ChaudArret DU Moteur Graissage AutomatiqueAbattage D UN Arbre Instructions Pour LA CoupeAbattage Regles Generales a Observer Pour L’A- BattageTronconnage SUR Chevalet EbranchageTronconnage Coupe VerticaleInstrucciones DE Mantenimiento Entretien PreventifGrille PARE-ETINCELLES Filtre a AIRFiltre a Essence Nettoyage DU Filtre a AIREntreposage D’UNE Tronconneuse BougieReglage DU Carburateur Preparation Apres EmmagasinageEntretien DE LA Chaine Entretien DU GUIDE-CHAINEEntretien DU GUIDE-CHAINE Lubrification DE LA ChaineInformations Concernant LE Remplacement DE LA Chaîne ’unité RelieProbleme Depannage DU MoteurListe DES Pièces Model MTD1840AV/ MTD1840AVCC Garantie Limitée DU Fabricant Pour Manuel del Dueño/Operador Introduccion Muchas GraciasAspectos DE Seguridad Renseignments GenerauxIndentificacion General Otras Precauciones DE Seguridad Precautiones DE SeguridadPrecauciones DE Contragolpe Precautiones DE Seguridad MAS Acerca DEL Contragolpe Etiquetas DE Seguridad POR ContragolpeSimbolos Internacionales Para Instalar LA Barra Guia Instrucciones DE EnsembladoRequerimientos Para EL ENSAM- Blado Justes DE Tension DE LA Cadena DE LA Sierra Para Ajustar LA Cadena DE LA SierraPrecaucion Prueba Mecanica DEL Chain BrakeCombustible Y Lubricacion Para Arrancar EL Motor Instrucciones DE OperacionPuntos DE Inspeccion Para EL PRE-ARRANQUE DEL Motor Importante Información Sobre ParadoRueba Operacional DEL Chain Brake Para Volver a Encender EL Motor CalientePara Apagar EL Motor Lubricacion DE LA Barra / Cadena DE LA SierraReglas Generales Para EL Talado DE Arboles Instrucciones DE Cortado GeneralesTalado Desramando UN ArbolLeñado Usando UN Caballete Para Aserrar DesramadoLeñado Cortando VerticalmenteMantenimiento Preventivo Pantalla Contra Chispanota Filtro DE AireFiltro DE Combustible Para Limpiar EL Filtro DE AireRetirando UNA Unidad EL ALMACE- Naje Ajustes DEL CarburadorAlmacenando UNA SIERRA-DE Cadena Mantenimiento DE LA Cadena Mantenimiento DE LA Barra / CadenaMantenimiento DE LA Barra Guia Lubricacion DE LA CadenaAfilado DE LA Cadena Nformación Sobre EL Recambio DE LA CadenaDeteccion y Correccion DE Fallas DEL Motor Lista DE Piezas Model MTD1840AV/ MTD1840AVCC Garantía Limitada DEL Fabricante Para Stop

MTD1640NAVCC, MTD1840AVCC specifications

The Yard Machines MTD1840AVCC and MTD1640NAVCC are powerful lawn mowers designed for efficient grass cutting and yard maintenance, perfect for homeowners seeking reliability and performance. These models stand out for their robust construction, user-friendly features, and advanced technologies that ensure a seamless mowing experience.

The MTD1840AVCC model is equipped with an 18-inch cutting deck, making it ideal for small to medium-sized lawns. It features a reliable 40V lithium-ion battery, which not only provides impressive runtime but also operates quietly, reducing noise pollution during use. The mower offers three cutting options: mulching, side discharge, and rear bagging, allowing users to choose the best method for their yard care. The adjustable cutting height accommodates different grass lengths, making it versatile for various gardening needs.

In contrast, the MTD1640NAVCC model comes with a slightly smaller 16-inch cutting deck, making it an excellent choice for tighter spaces and small yards. It shares many of the same benefits as the MTD1840AVCC, with a 40V lithium-ion battery for efficient performance. The MTD1640NAVCC also offers multiple cutting modes, providing flexibility in achieving the desired finish for your lawn.

Both models are built with lightweight materials, ensuring easy maneuverability even on uneven terrain. The ergonomic handle design adds comfort during use, reducing strain on the arms and back. Additionally, the foldable handle feature allows for compact storage, making them ideal for garages and sheds with limited space.

Safety features have not been overlooked, with both mowers equipped with a blade brake mechanism that stops the blade quickly when the user releases the handle. This ensures added safety, especially in households with children or pets.

In conclusion, the Yard Machines MTD1840AVCC and MTD1640NAVCC are exemplary lawn mowers that combine innovative technology with practical features. Their durable construction, efficient battery operation, and versatile cutting options make them superb choices for maintaining a beautiful lawn. Whether you have a small urban yard or a larger suburban garden, these mowers deliver performance and reliability you can trust.
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