MTD TBPS manual Maintenance and Repair Instructions, SAW Chain REPLACEMENT/INSTALLATION

Page 11

MAINTENANCE AND REPAIR INSTRUCTIONS

SAW CHAIN REPLACEMENT/INSTALLATION

WARNING: Whenever handling the saw chain,

always wear work gloves for protection against sharp cutting edges.

1.Remove the bar retaining nuts and screw. Then take off the sprocket cover (Fig. 8a).

2.Using a straight screwdriver turn tension adjustment screw counterclockwise (Fig. 8b) as far as it will go or to the end of its travel, take off the chain then remove the bar.

A

 

 

 

 

 

 

B

 

 

 

 

 

Sprocket

 

 

 

 

 

 

 

Cover

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Screw

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tension

Bar Retaining

 

 

 

 

 

 

 

 

 

 

 

 

 

Adjustment

 

Nuts

 

 

 

 

 

 

 

Screw

 

 

 

 

 

Fig. 8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.Prepare new chain or bar.

4.Loop the saw chain over the drive sprocket with the cutting edges of the chain pointing in the direction of rotation (Fig. 9).

5.Adjust the tension adjustment screw (Fig. 8b) to allow insertion of the bar (Fig. 10). Make sure the chain follows the slot in the guide bar and adjust the tension adjustment screw to make the chain tighten.

6.Install the sprocket cover and tighten bar retaining nuts and screw (Fig. 8a).

Fig. 9

SAW CHAIN TENSION ADJUSTMENT

Proper tension of the saw chain is extremely important and must be checked before starting, as well as during, any cutting operation. Taking the time to make needed adjustments to the saw chain will result in improved cutting performance and prolonged chain life.

NOTE: A new chain and bar will need readjustment after as few as 5 cuts. This is normal during the break-in period, and the interval between future adjustments will lengthen quickly (Fig. 11).

CAUTION: If a chain is too loose or too tight, the bar

chain and saw bearings will wear more rapidly. Refer to Figure 11 for information concerning correct cold tension (A), correct warm tension (B), and a chain in need of adjustment (C).

ABC

Fig. 11

To adjust the saw chain tension:

1.Loosen the bar retaining nuts so they are hand tight (Fig. 8a).

2.Holding the nose of the bar up, use the screwdriver or scrench (if provided in your unit’s hardware pack) to turn the guide bar adjustment screw clockwise to tighten the chain (Fig. 8b). Turning the screw counterclockwise loosens the chain on the guide bar.

3.While wearing heavy duty work gloves (after you’ve made the adjustment), move the saw chain back and forth on the guide bar to be sure the chain moves freely and is in proper mesh with the sprocket. Never move the chain with your bare hands.

NOTE: IF the chain is difficult to rotate or if it binds on the guide bar, there is too much tension applied and it must be adjusted. To decrease tension, turn the adjustment screw counterclockwise, slowly. Move the chain back and forth until it moves freely.

4.Holding the nose in upper position, securely tighten the bar retaining nuts.

Fig. 10

11

Image 11
Contents Operator’s Manual Introduction Product REFERENCES, Illustrations and SpecificationsService Information Table of ContentsRead ALL Instructions Important Safety InstructionsSpecial Safety Warnings for GAS Powerheads Rules for Safe OperationChain SAW Operating Procedures Kickback Safety PrecautionsOther Safety Precautions Save These Instructions Maintenance and StorageUSE Both Hands Safety and International SymbolsSymbol Meaning Safety Alert SymbolKnow Your Unit Assembling the Coupler Operating InstructionsOperating Precautions Operating Tips SAW Chain Tension Adjustment Maintenance and Repair InstructionsSAW Chain REPLACEMENT/INSTALLATION Bar Grooves Guide BAR MaintenanceOiling the Chain Bar WearChain Tension SpecificationsChain Maintenance Low-Kickback Saw ChainTroy-Bilt LLC Manuel de Lutilisateur Table DES Matières Tous NOS RemerciementsNformations D’ENTRETIEN Importantes Consignes DE Sécurité Alerte DE SécuritéAutres Précautions DE Sécurité Procédures D’OPÉRATION DE LA TronçonneuseEntretien ET Entreposage Conservez CES InstructionsSymboles DE Sécurité ET Internationaux FAMILIARISEZ-VOUS Avec Votre Appareil Installation de laccessoire Mise EN Garde laccessMode Demploi Retrait de laccessoireAvertissement Portezdes Precautions D’UTILISATIONTailler UN Arbre Elaguar Reglage DE LA Tension DE LA Chaine Chainion RemplacementAvertissement Pour toute Instrucciones DE Mantenimiento Y ReparaciónUsure du Guide-Chaine Avertissement AssurezEntretien DU GUIDE-CHAINE Huiler LA ChaîneEntretien DE LA Chaine Avertissement Ne jamaisCaractéristiques Garantie Limitée DU Fabricant Pour Manual Del Operador Indice DE Contenidos IntroduccionMuchas Gracias Informacion DEL ServicioNormas Para UNA Operacion Segura Importante Informacion DE SeguridadAdvertencia Se debe Advertencia Laes muygasolinaProcedimientos Para LA Operación DE Sierras DE Cadena Advertencia El conNormas Para UNA Operación Segura Protejase Contra EL ContragolpeMantenimiento Y Almacenaje Guarde Estas InstruccionesAviso Sobre LA Barra DE Guía Simbolos DE Seguridad E InternacionalesConozca SU Unidad Instrucciones DE Operación Advertencia Lea yAdvertencia Para evitar Precaucion Trabe elPrecauciones DE Corte Advertencia Vista enSugerencias DE Operación Ajuse DE LA Tension DE LA Cadena DE LA Sierra Cadena Instalacion DE RemplazoMantenimiento DE LA Barra Guia Advertencia CercióreseLubricación DE LA Cadena Mantenimiento DE LA Cadena Advertencia AdemenosqueAdvertencia Nunca EspecificacionesNotas Replacement Parts Model Tbps Pole SAW ADD-ON Parts ListGarantía Limitada DEL Fabricante Para