Shindaiwa 69033-94310, 502s manual Chain Brake Testing, Chain Brake Maintenance

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Chain Brake

Chain Brake Operation

This saw is equipped with a dual func- tion chain brake designed to stop the saw chain from rotating whenever kick- back occurs.

WARNING!

The chain brake is installed only to reduce the risk from kickback! The chain brake is not a substitute for careful operation!

WARNING!

The chain brake system for this unit type 502s is not adjust- able! If the chain brake fails to stop the chain when activated, DO NOT USE THE SAW! Return the saw to your dealer for repairs.

IMPORTANT!

Release the throttle whenever the chain brake is activated!

1.Engaging the brake lever causes a brake band to tighten around the clutch drum, stopping the saw chain.

2.The chain brake is designed to engage whenever the brake lever strikes the operator’s hand or from the inertial effects of kickback.

3.The chain brake can also be activated by pushing the brake lever forward manually.

To release (disengage) the chain brake, pull the brake lever rearward, towards the front handle until a positive stop is felt.

Chain Brake Testing

Step 1: Inertia Chain Brake Function (engine “OFF”)

WARNING!

Step 1

 

Both of the following testing procedures must cause the chain brake to engage and prevent the saw chain from moving! If the chain brake does not fully engage and prevent the saw chain from moving during either test, DO NOT OPER- ATE THE SAW! Return the saw to your dealer for repairs!

Use the following procedure to test for

2. Hold the chain saw normally, gripping

proper operation:

the rear handle with the right hand

1. Turn the engine “OFF,” and verify

and the front handle with the left hand.

While keeping the chain saw level, hold

that the ignition switch is in the “O” or

the nose of the guide bar approximately

“OFF” position.

14” (35 cm) above a solid wood block.

 

Step 2: Manual Chain Brake Function (engine running)

3.Release the front handle only and allow the guide bar nose to drop onto the wood. The chain brake lever should move forward to position 2 and activate the brake as soon as the nose strikes the wood block. Wearing gloves, make sure that the saw chain cannot be pulled around the guide bar.

Use the following procedure to test for proper operation:

1.Start the saw and warm the engine to operating temperature.

CAUTION!

Operating the saw at wide open throt- tle for longer than 5 seconds without a load could result in engine damage.

2.With the saw on a flat stable surface, main- tain a firm grip on the rear handle with the right hand and the top of the front handle with the left hand. The left hand should be centered with the front hand guard.

3.Accelerate engine to full throttle, then, without releasing the front handle, roll the left wrist forward against the front hand guard/chain brake lever to push the brake lever forward until the chain brake activates (position 2). The saw chain must stop immediately. If either of step 1 or step 2 tests fail, contact an authorized Shindaiwa dealer for repairs.

Step 2

1Chain Can Move

2 Chain

Stopped

Chain Brake Maintenance

CAUTION!

Never start or operate this saw while the chain brake is activated!

Periodically clean the brake mecha- nism of sawdust or debris.

If the chain brake becomes damaged or worn, or fails to completely engage or release the clutch drum, return the saw to your dealer for repairs.

Never carry the saw by the brake lever! Carry the saw by the front handle.

Always stop the saw and disengage the chain brake before removing or replacing the clutch cover!

Never make carburetor adjustments while the chain brake is engaged!

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Contents 502s Chain SAW Contents IntroductionsChain Saw Kickback Safety Devices Kickback Safety PrecautionsChain Brake Kickback can happen lightning-fastAdditional Safety Precautions Stop the engine before setting the chain saw downImproper maintenance, use of non Safety Labels Specifications Unit DescriptionRecommended BAR and Chain Combinations Assembly and Adjustments Prior to assemblyInstalling and Adjusting the Guide Bar and Saw Chain Never operate this saw Without the clutch cover installed Re-Adjusting the Saw ChainMixing fuel Filling the fuel tankBar Oil Oil Pump Adjustment Starting the EngineEngine Start Stopping the Engine Adjusting Engine Idle Idle Speed AdjustmentStarting a Flooded Engine Saw chain must never rotate at engine idle speedChain Brake Testing Chain Brake MaintenanceChain Brake Cutting with the Saw Felling TreesBefore Felling a Tree Felling Small TreesFelling Larger Trees BuckingLimbing Maintenance 40/50 Hour Maintenance Spark Arrester MaintenanceLong Term Storage Saw Chain Performance How the Saw Chain WorksSharpening Technique For consistent filing angles, use a filing guideTroubleshooting Guide What To CheckPossible Cause RemedyAdditional Problems SymptomLimited Warrantly Page Specifications subject to change without notice 502s Motosierra Introducción ÍndiceNotas de interés especial Dispositivos de seguridad de contragolpe de la motosierra Precauciones de seguridad contra los contragolpesFreno de la cadena Equipo de cortePrecauciones adicionales de seguridad Rótulos de seguridad Descripción de la unidad EspecificacionesCombinaciones Recomendadas DE Barra Y Cadena Ensamblar y adjuste Antes de EnsamblarEnsamblar y adjuste continuación EmbragueReajuste de la cadena de la sierra Mezcla del combustible Llenando el tanque de combustibleAceite de la barra PrecauciónAceite de la barra continuación Arranque del motorAjuste de la bomba de aceite Arranque del motorArranque del motor continuación Detención del motorAjuste de la marcha mínima Arrancando un motor ahogadoFreno de la cadena Prueba del freno de la cadenaFuncionamiento del freno de la cadena Mantenimiento del freno de la cadenaCorte con la sierra Tala de árboles¡PROCEDA CONTala de árboles Continuación Tala de árboles grandesTronzado DesrameMantenimiento Mantenimiento continuacion Almacenamiento prolongadoMantenimiento luego de 40 a 50 horas de uso Mantenimiento del guardachispasRendimiento de la cadena de la sierra Funcionamiento de la cadena de la sierraTécnica de afilado Para limar en ángulos iguales, use una guía para la limaGuía de localización de fallas Qué RevisarPosible causa RemedioGuía de localización de fallas continuación Qué Revisar Posible causaEsta Garantía ES Administrada POR Notas SP22 Scie À Chaîne 502s Introduction Table des matièresMises en garde AVERTISSEMENT Dispositifs antirebond de la scie à chaîne Consignes de sécurité relatives au rebondFrein de chaîne AVERTISSEMENT  AvertissementAutres consignes de sécurité REMARQUE Étiquettes de sécurité Combinaisons DE Guide ET DE Chaîne Recommandées Description de l’appareilCaractéristiques techniques Installation et réglage du guide-chaîne et de la chaîne Assemblage et réglageAvant l’assemblage Mise EN GARDE Assemblage et réglage suite Ne jamais utiliser la scie sansRéglage de la chaîne Mélange d’essence Remplissage du réservoir à carburantHuileur du guide Huileur du guide suite Démarrage du moteurRéglage de la pompe à huile Démarrage du moteur Démarrage d’un moteur noyé Arrêt du moteurRéglage du ralenti moteur Réglage du régime de ralenti Frein de chaîne Vérification du frein de chaîneEntretien du frein de chaîne Fonctionnement du frein de chaîneUtilisation de la scie Abattage d’arbresAbattage de petits arbres Abattage d’arbres suite Abattage d’arbres de grande tailleTronçonnage ÉbranchageEntretien Entretien suite Remisage à long termeEntretien aux 40 à 50 heures Entretien du pare-étincellesPerformances de la chaîne de la scie Fonctionnement de la chaîneMéthode d’affûtage Solution Points à contrôler Cause probable SolutionGuide de dépannage Points à contrôlerGuide de dépannage suite Autres ProblèmesÉtendue DE LA Garantie DU Fabricant Responsabilités DU Propriétaire À L’ÉGARD DE LA GarantiePièces Prises EN Charge LimitationsFR21 Shindaiwa Inc

69033-94310, 502s specifications

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