Delta 20-400 instruction manual Adjustments, Cutting Curves, Adjusting the Blade Tension

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OPERATION

CUTTING CURVES

Turn the stock carefully so that the blade follows without twisting. For very abrupt curves, consider using a narrower blade, or a blade with more set. Another solution to this problem is to make relief cuts (Figure 16)

When you withdraw the workpiece or change the cut,

 

be careful not to accidentally pull the blade off of the

 

wheels. The preference is to turn the stock and saw out

 

through the waste material.

Figure 16

ADJUSTMENTS

ADJUSTING THE BLADE TENSION

Disconnect the machine from the power source before making any adjustments!

See Figure 17 (show set up as in sample to the rightCaption: A standard blade should have approximately 1/4" deflection on either side.)

Unless you have a tension meter, achieving optimum blade tension is a matter of trial and error. There are a number of suggested methods for achieving the proper tension.

Most blade manufacturers recommend 15,000 psi to 20,000 psi for a common carbon-steel blade. Stronger bimetal, spring-steel, and carbide-tipped blades generally require 25,000 psi to 30,000 psi. The tighter the blade is stretched, the more rigid it becomes and the less tendency it will have to deflect in the cut.

It should be noted that maximum blade tension is only required for the most demanding cuts, such as re-sawing dense hardwoods or stock of maximum thickness.

NOTE: DELTA® Timber Wolf® band saw blades are recommended as they are designed to operate with less tension, thus increasing their serviceable life. Follow the tensioning directions on the package

To check and adjust the blade tension on your DELTA® 14" Steel Frame Band Saw, do the following:

Disconnect the machine from the power source before making any adjustments!

Set the upper blade guide assembly about 6 in. off the table.

Use a moderate amount of pressure with your index finger to push the blade sideways in both directions. The blade should not deflect more than 1/4" in either direction.

If the blade deflects more than 1/4", increase the tension on the blade by tightening the blade tensioning knob at the top of the machine (refer to B in Figure 6, page 9).

If the blade does not deflect at all, it may be too tight. Loosen the blade tensioning knob slightly until there is a minimal amount of deflection.

Figure 17

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Contents 14 in. Steel Frame Band Saw Table of Contents Important Safety InstructionsSafety Guidelines Definitions General Safety RulesAdditional Specific Safety Rules Refer to them often and use them to instruct othersGrounding Instructions POWER CONNECTIONSMotor Specifications All grounded, cord-connected machinesEXTENSION CORDS Minimum Gauge Extension CordKEY Features and Components Functional DescriptionProduct Specifications UnpackingSecure Table to Table Trunnion System AssemblyStand Assembly Attaching the SAW to the StandInstall Blade Tensioning Knob Install Band SAW BladeInsert Throat Plate Adjust the Blade TrackingSee Figure Disconnect the machine from the power source Square Table to BladeStarting and Stopping the SAW Using the Safety KEY to Lock the Switch in the OFF PositionOperation Selecting Proper Cutting SpeedTilting the Table Disconnect the machine from the power source See FigureOperation Positioning the Upper Blade GuideCutting Curves AdjustmentsAdjusting the Blade Tension Adjusting the Blade Guides and Bearings Adjusting Blade TrackingKeep Machine Clean MaintenanceTroubleshooting Failure to StartTrouble Band SAW does not Come UP to Speed Probable CauseAbout Band SAW Blades AccessoriesWarranty TipsReplacement Parts Service and RepairsConsignes DE Sécurité Importantes Consignes DE Sécurité DéfinitionsRègles DE Sécurité Générales Suite à laRègles DE Sécurité Spécifiques Supplémentaires Conservez CES ConsignesInstructions DE Mise À LA Terre Raccordements ÉlectriquesSpécifications DU Moteur Rallonges Fonctionnement monophasé 240 VoltsCaractéristiques ET Composantes Description du FONCTIONNEmentCaractéristiques DU Produit DéballageFixer LA Table AU Système DE Tourillons DE Table MontageMontage DU Support Fixer LA Scie AU SupportVoir Figure Installer LA Poignée DE Tension DE LA LameInstaller LA Lame DE LA Scie À Ruban Aligner LA Table ET LA Lame Régler LE Suivi DE LA LameInsérer LA Plaque Lumière Sélection DE LA Bonne Vitesse DE Coupe FonctionnementDémarrage ET Arrêt DE LA Scie Incliner LA Table Positionner LE Guide DE Lame SupérieurRégler LA Tension DE LA Lame AjustementsCouper DES Courbes Régler LES Guides DE Lame ET Paliers Régler LE Suivi DE LameDépannage Cause probable SolutionEntretien Échec DU DémarrageCause probable Solution Curseur déréglé Réglez le curseur Cause probableGarantie AccessoiresPropos DES Lames DE Scie À Ruban ConseilsAide Pour LES PIÈCES, LE Service OU LA Garantie Service ET RéparationsInstrucciones Importantes DE Seguridad Normas DE Seguridad DefinicionesReglas Generales DE Seguridad Continúa en la páginaReglas Adicionales DE Seguridad Guarde Estas InstruccionesInstrucciones DE Conexión a Tierra Conexiones DE AlimentaciónEspecificaciones DEL Motor Alargadores Eléctricos Alargador Eléctrico DE Calibre MínimoCaracterísticas Y Componentes Clave Descripción FuncionalEspecificaciones DEL Producto DesembalajeSujete LA Mesa AL Sistema DE Muñones DE Mesa EnsamblajeEnsamblaje DE LA Base Consulte la FiguraVea la figura Instale LA Perilla Tensionadora DE LA HojaInstale LA Hoja DE LA Sierra Cinta Cuadre LA Mesa a LA Hoja Ajuste DEL Desplazamiento DE LA HojaInserte LA Placa DE Garganta Selección DE LA Velocidad DE Corte Adecuada FuncionamientoEncender Y Detener LA Sierra Inclinación DE LA Mesa Posicionamiento DE LA Guía DE LA Hoja SuperiorAjuste DE LA Tensión DE LA Hoja AjustesCorte DE Curvas Ajuste DE LAS Guías Y LOS Rodamientos DE LA Hoja De la fuente de alimentaciónFalla EN EL Encendido ReSOLUCIÓN DE ProblemasMantenimiento Mantenga LA Máquina LimpiaProblema LA Sierra Cinta no Alcanza LA Velocidad Deseada Causa probableGarantía Acerca DE LAS Hojas Para Sierra CintaAccesorios SugerenciasAsistencia Sobre GARANTÍA, Servicio O Piezas Servicio Técnico Y ReparacionesAirport Road Anderson, SC 800