Troubleshooting Guide | Hitachi Koki USA CW 20 manual

English

TROUBLESHOOTING GUIDE

WARNING

To avoid injury from accidental starting, always turn switch OFF (O) and unplug the tool before moving, replacing the blade or making adjustments.

Consult Hitachi Authorized Service Center if for any reason the motor will not run.

SYMPTOM		POSSIBLE CAUSES		CORRECTIVE ACTION

Breaking blades	1.	Wrong tension.	1.	Adjust blade tension. See BLADE
	2.	Overworking blades.		REMOVAL AND INSTALLATION
	3.	Wrong blade application.		section.
	4.	Twisting blade in wood.	2.	Reduce feed rate. See BLADE
				REMOVAL AND INSTALLATION
				section.
			3.	Use narrow blade. See BLADE
				SELECTION section.
			4.	Avoid side pressure on blade.
				See BLADE REMOVAL AND
				INSTALLATION section.
Motor will not run.	1.	Defective cord or plug.	1.	Replace defective parts before
	2.	Defective motor.		using saw again. See ELECTRICAL
	3.	Blown overload breaker.		REQUIREMENTS AND SAFETY
				section.
			2.	Call Service Center. Any attempt
				to repair this motor may create a
				HAZARD unless the repair is done
				by a qualiﬁed technician.
			3.	Push the motor switch to the OFF
				(O) position. Let the motor cool.
				See OPERATION-OVERLOAD
				BREAKER section.
Excessive vibration.	1.	Improper mounting of saw.	1.	See mounting instructions in
NOTE: There will always be	2.	Unsuitable mounting surface.		this manual for proper mounting
some vibration present when	3.	Loose table or table resting against		technique.
the saw is running because		motor.	2.	The heavier your workbench is, the
of motor operation.	4.	Loose motor mounting.		less vibration will occur. A plywood
				workbench will not be as good a
				work surface as the same size solid
				lumber.
			3.	Tighten the table lock knob.
			4.	Tighten motor mounting screw.
Blade run out.	1.	Blade holders not aligned.	1.	Loosen blade holder lock knob
Blade not in line with arm				holding blade holder to arms. Adjust
motion.				position of blade holders. Retighten
				blade holder lock knob. See BLADE
				REMOVAL AND INSTALLATION
				section.

– 20 –

Image 20

Hitachi Koki USA CW 20 instruction manual Troubleshooting Guide, Symptom Possible Causes Corrective Action

Contents

Mode D’EMPLOI ET Instructions DE Securite Contents Blade Product SpecificationsMotor English Power Tool SafetyGeneral Safety Instructions Before Using this Power Tool Scroll SAW Safety Specific Safety Instructions for this Scroll SAWThink Safety Hold Workpiece Firmly against the table top Guidelines for Extension Cords Electrical Requirements and SafetyGrounding Instructions Accessories and Attachments Tools Needed for AssemblyRecommended Accessories Supplied Not Supplied Mm Hex Wrench Medium Screwdriver Carton Contents Know Your Scroll SAW Woodworking Terms Glossary of TermsScroll SAW Terms Mounting the Scroll SAW FIG. A, B Assembly and AdjustmentsEstimated Assembly Time 15~20 Minutes Assemble Stand FIG. a Blade Removal and Installation Mounting Scroll SAW to Work Surface FIG. CBlade Storage FIG. D Sawdust Collection Port FIG. E PLAIN-END Blade Installation FIG. H, I, J PLAIN-END Blade Removal FIG. F, G, H PIN-END Blade Removal and Installation PIN-END Blade Removal FIG. K, L Sawdust Blower FIG. Q Blade Guard Foot Adjustment FIG. O, PBlade Selection FIG. R On I / OFF O Switch FIG. S OperationReplacing the Bulb FIG. S Variable Speed Control Knob FIG. S Freehand Cutting FIG. U Angle Cutting FIG. U RIP or Straight Line Cutting FIG. W Interior Cutting FIG Replacing Carbon Brushes FIG. Y, Z MaintenanceGeneral Troubleshooting Guide Symptom Possible Causes Corrective Action Fiche Technique DU Produit FrançaisMoteur Lames Découper Consignes DE Sécurité Générales ÀRespecter Avant D’UTILISER LA Scie 26.SÉCURITÉ Avant Tout Consignes DE Sécurité Spécifiques À Cette Scie À DécouperTenir Fermement LE Matériau À Scier Directives DE Mise À LA Terre Directives Concernant LESRallonges Mise EN Garde Fourni Not Fourni AccessoiresOutils Requis Pour Assemblage Pied Contenu DE LA BoîteART Description Quantité Apprendre À Connaìtre LA Scie À Découper Termes DE Menuiserie GlossaireTermes Relatifs AUX Scies À Découper Assemblage ET Réglages Remarque Compartiment DE Rangement DES Lames FIG. D Pose ET Dépose DES Lames À Ergot FIG. F, G, H Pose DES Lames Ordinaires FIG. H, I, J Pose ET Dépose DES Lames À Ergot Dépose DES Lames À Ergot FIG. K, L Souffleur DE Sciure FIG. Q Réglage DU Pied DU PROTÈGE-LAME FIG. O, PChoix DES Lames FIG. R Remplacement DE L’AMPOULE FIG. S Recommandations Pour LES CoupesUtilisation Interrupteur Marche I -ARRÊT O FIG. S Coupes EN Biais FIG. U Coupe À Main Libre Coupe Intérieure FIG Coupes DE Refente OU EN Ligne Droite FIG. WQuantité Description Généralités Remplacement DES Balais DE Charbon FIGEntretien Guide DE Dépannage Problèmes Causes Possibles Remèdes Especificaciones DEL Producto EspañolMotor Mesa Extractor DE Polvo Seguridad DE LAS Herramientas Instrucciones Generales DESeguridad Antes DE Utilizar Esta Herramienta Eléctrica Segurida DE LA Sierra Caladora Instrucciones Específicas DESeguridad Para Esta Sierra Caladora Seguridad Y Requisitos Eléctricos Instrucciones DE Puesta a TierraDirectrices Para EL Cable DE Extensión Funciona, a ﬁ n de proteger al operario de posibles Suministran No se suministran Accesorios Y AcoplamientosAccesorios Recomendados Contenido DEL Embalaje Desembalaje Y Comprobación DE SU ContenidoDesembalaje DE SU Sierra DE Marquetería Soporte Familiarícese CON SU Sierra Caladora Glosario DE Terminos Términos DE LOS Componentes DE LA SierraTérminos DEL Trabajo CON Madera Botón DE Bloqueo DEL PIE DEL Guardahojas Montaje DE LA Sierra DE Marqueteria FIG. A, B Montaje Y AjustesNota Montaje DE LA Sierra Caladora AL Plano DE Trabajo FIG. C Almacenamiento DE Hojas FIG. D Desmontaje DE LA Hoja DE Extremo Liso FIG. F, G, H Montaje DE LA Hoja DE Extremo Liso FIG. H, I, J Montaje DE LA Hoja CON Extremo DE Pasador FIG. M, N Desmontaje Y Montaje DE Hojas CON Extremo DE PasadorDesmontaje DE LA Hoja CON Extremo DE Pasador FIG. K, L Extractor DE Serrín FIG. Q Regulación DEL PIE DEL Guardahojas FIG. O, PSelección DE LA Hoja FIG. R Funcionamiento Cambio DE LA Bombilla FIG. SInterruptor DE Encendido I /APAGADO O FIG. S Boton DE Control DE Velocidad Variable FIG. S Corte a Mano FIG. U Corte EN Ángulo FIG. U Regado O Corte EN Línea Recta FIG. W Corte Interior FIG Reemplazo DE LAS Escobillas DE Carbon FIG. Y, Z MantenimientoGeneralidades Guia Para LA Solucion DE Problemas Problema Causa DEL Problema Solución Recomendada Parts List Parts List for SchematicScroll SAW Model NO. CW Always order by I.D. Number Scroll SAW Model NO. CW Parts List for Stand Hitachi Koki Canada Co