DeWalt DW745 Blade , 27, Riving Knife Selection, Kickback, Operation, Replacing the Blade

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FIG. 31

Blade (Fig. 3, 27, 28)

REPLACING THE BLADE

FIG. 27

1.

Raise the saw blade arbor to its

 

maximum height by turning the blade

C

 

height

adjustment wheel (I)

 

 

clockwise.

 

2.

If replacing the blade, remove the

Y

 

Blade guard assembly (D) and throat

 

 

plate (X) prior to installing the new

 

 

blade. (Refer to To Remove Blade

 

 

guard

assembly under Assembly

 

 

and To Remove Throat Plate.)

 

 

NOTE: It may be easier to change

 

 

the blade with the saw blade

 

 

beveled to 45˚.

 

3.

Remove the arbor nut (Y) and outer

 

 

washer (Z) and set aside.

Z

4.

Place the blade (C) on the arbor

 

making sure the teeth of the blade

 

point downward and toward the front of the saw.

 

5. Place the outer washer (Z) against the blade,

FIG. 28

raised side out and tighten the arbor nut against

 

the washer as far as possible by hand. Ensure that

 

the outer washer and arbor nut are free of dust and

 

debris before installing.

 

6. To further tighten the arbor nut (Y), use the open

 

ended spindle wrench (supplied) to keep the

 

spindle from rotating (Fig 27).

 

7. Use the arbor wrench (supplied) to hold the nut

 

and tighten it by turning it clockwise. Reposition the

 

wrench on the arbor nut and repeat as necessary

Y

until the nut and washer are securely fastened

 

against the blade (Fig. 28).

 

NOTE: Different types of blades make different kerfs (width of cuts). Therefore, it is

necessary to check adjustment of rip scale when changing blades. Replacement blade

MUST not exceed the thickness stated on the riving knife. The riving knife provided with the

saw is 2.2 mm thick.

 

Riving Knife Selection

WARNING: To minimize the risk of kickback and to insure proper cutting, the riving knife must be the proper thickness for the blade used.

The riving knife supplied with this table saw is the correct size for the blade supplied with the saw.

If a different blade is used, check the blade body, or plate, thickness and the blade kerf, or cutting, width marked on the blade or on the blade packaging. The riving knife thickness must be greater than the body thickness and less than the kerf width as shown in Figure 29. If it is not, the riving knife MUST be replaced with one that has the correct thickness.

The riving knife provided with this saw is marked as follows (Fig. 30):

0.087" (2.2 mm) THICK RIVING KNIFE. ONLY USE FOR 10" (254 mm) Ø BLADE WITH 0.094" (2.4 mm) MIN. KERF WIDTH AND 0.067" (1.75 mm) MAX. BODY THICKNESS.

The Riving knife available as an accessories marketed by DEWALT is marked as follows: 0.110" (2.8 mm) THICK RIVING KNIFE. ONLY USE FOR 10" (254 mm) Ø BLADE WITH 0.118" (3.0 mm) MIN. KERF WIDTH AND 0.098" (2.5 mm) MAX. BODY THICKNESS

FIG. 29

RIVING KNIFE

 

FIG. 30

 

THICKNESS

 

 

 

KERF WIDTH

(WIDTH OF CUT

MADE BY THE

BLADE)

BODY (OR PLATE)

THICKNESS OF

THE BLADE

All DEWALT blade body thickness and kerf widths are provided at www.DEWALT.com.

If a different blade is used and the body thickness and kerf width dimensions are not provided, use the following procedure to determine the correct riving knife thickness:

1. Measure the body thickness of the blade.

2.Make a shallow cut in scrap material and measure the kerf width.

3.Select the riving knife as shown in Figure 29.

4.Slide the riving knife through the shallow cut made in step 2 to confirm the correct riving knife has been selected. The riving knife should not bind or drag through the cut.

IMPORTANT: If any dragging or binding of the material is encountered as it reaches the riving knife, turn unit off and disconnect machine from power source. Repeat steps 1–4 to make the proper riving knife selection before attempting another cut.

Kickback

Kickback is a dangerous condition! It is caused by the workpiece binding against the blade. The result is that the workpiece can move rapidly in a direction opposite to the feed direction. During kickback, the workpiece could be thrown back at the operator. It can also drag the operator’s hand back into the blade if the operator’s hand is at the rear of the blade. If kickback occurs, turn the saw OFF and verify the proper functioning of the riving knife, anti- kickback assembly and blade guard assembly before resuming work.

WARNING: See Additional Safety Rules for Table Saws and follow all warnings provided regarding KICKBACK.

OPERATION

WARNING: Before using the saw, verify the following each and every time:

1.ALWAYS wear proper eye, hearing and respiratory equipment.

2.Blade is tight.

English

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Contents Dewalt Double Insulation Definitions Safety GuidelinesGeneral Safety Rules Grounding Instructions Important Safety InstructionsAmpere Rating Additional Safety Rules for Table SawsMinimum Gage for Cord Sets Volts Total Length of Cord in FeetKickbacks Making a Push Stick Inside Back CoverUnpacking FeaturesFor Future USE SpecificationsRip Fence AssemblyMiter Gauge Anti-Kickback Assembly FigBlade guard assembly Rip Fence Operation Connecting Saw to Power SourceAdjustments On-Off Switch Bench MountingBevel Lock Adjustment FIG Rail Lock AdjustmentBevel Stop and Pointer Adjustment RIP Scale AdjustmentAligning Riving Knife to Blade FIG Miter Gauge Adjustment Calibrating Miter Gauge PointerSaw Blades Operation Blade , 27Riving Knife Selection KickbackRipping Guard Operating Feature FigBevel Ripping Ripping Small PiecesNarrow Rip Auxiliary Fence Push BlockCompound Mitering Bevel CrosscuttingMitering Miter Gauge OperationLubrication Accessories StorageDust Collection Year Free Service MaintenanceCleaning Repairs Three Year Limited WarrantyDirectives de mise à la terre Définitions Consignes de sécuritéRègles de sécurité Généralités Conserver CES ConsignesIntensité en ampères Consignes de sécurité importantesCalibres Minimaux DES Rallonges Volts Longueur totale de cordon en piedsFrançais Rebonds Désemballage Conserver CES Consignes Pour Utilisation UltérieureFiche technique Caractéristiques Pour Retirer LA Plaque DE Lumière a AssemblageGuide longitudinal Assemblage DU Guide LongitudinalDispositif anti-rebonds Fig Pour Réinstaller LA Plaque DE LumièreInstallation DU Dispositif DE Carter DE Lame Dispositif de carter de lameRéglages Montage sur établiBranchement de la scie Fonctionnement du guide longitudinal Interrupteur Marche/ArrêtRéglage DE L’ÉCHELLE Desciage EN Long Réglage DU Système DE BlocageDE LA Barre DE Guidage Réglage DE LA Butée ET DE L’INDICATEUR DE ChanfreinAlignement DU Couteau Diviseur ET DE LA Lame FIG Lames de scieChoix du couteau diviseur Remplacement DE LA LameLame , 27,28 Caractéristiques du dispositif de protection Fig RebondsFonctionnement Bloc-poussoir Coupes longitudinalesCoupes longitudinales de petites pièces Guide longitudinal auxiliaire étroitTronçonnage en biseau Sciage sur le long en biseauCoupes transversales Construction d’un peigne OngletUtilisation du guide d’onglet Découpe à onglet mixteEntretien Français Instrucciones de Conexión a Tierra Definiciones Lineamientos de SeguridadReglas de Seguridad Generales Guarde Estas InstruccionesAmperaje Nominal Instrucciones Importantes de SeguridadCalibre Mínimo Para Juegos DE Cables Voltios Longitud Total del Cable en PiesReglas de Seguridad Adicionales para Sierras de Banco Cómo evitarlos y Protegerse de Posibles Lesiones RebotesDesembalaje Guarde Estas Instrucciones Para Futuras ConsultasCaracterísticas Guía de corte longitudinal EnsamblajeCambio DE LA Placa DE Garganta Ensamble Protector de la HojaEnsamble de Anti-rebote Fig Calibrador de ingleteInterruptor de encendido/ apagado Montaje en el banco de trabajoConexión de la sierra a la fuente de alimentación Funcionamiento de la guía de corte longitudinalAjustes De la Cuchilla en Ensamblaje Hojas para sierrasHoja , 27 Alineación DE LA Cuchilla CON LA Hoja FIGHacia afuera y apriete manualmente la tuerca del Selección de CuchillaRebote Ranurado OperaciónFunción de Operación del Protector Fig Bloque de Empuje Ranurando Piezas PequeñasGuía Auxiliar Para Cortes Delgados Inglete Ranurado de BiselCorte Cruzado Cortes transversales en biselAlmacenamiento Póliza de Garantía MantenimientoLimpieza ReparacionesMONTERREY, N.L GUADALAJARA, JALMEXICO, D.F MERIDA, YUC
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