docAutomatic Belt Tensioners Automatic Belt Tensioners
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Automatic Belt Tensioners Automatic Belt Tensioners
Important Facts About Dayco® Automatic Belt Tensioners “We’ll build on the technology we introduced in the development of our OE Heavy Duty Tensioner to engineer a version for passenger and light truck tensioner applications.” Dayco Research and Development committee..1980 Dayco has been a pioneer in Original Equipment automatic belt tensioners since obtaining their first tensioner patent in 1976; progressing through the development of the revolutionary serpentine belt drive system for the 1979 Ford Mustang and ultimately, the development and patenting of the first production “flat spring” automotive tensioner. In 1997, Dayco scored another first by introducing the Dayco Tensioner to the Aftermarket. In the process, Dayco generated a completely new and profitable avenue of sales for automotive part suppliers. The Dayco commitment to the Aftermarket then…as it continues to be…was “to continually set the industry standard for tensioner quality and VIO tensioner replacement coverage.” Facts To Consider: • Dayco manufactures automotive and heavy-duty tensioners for both Original Equipment and Aftermarket Applications. • Technology developed for Dayco manufactured heavy-duty tensioners is incorporated into the Dayco manufactured passenger car and light truck tensioner line. • Dayco engineered tensioners for the Aftermarket utilize the same components used to build Dayco Original Equipment Tensioners. • Dayco Original Equipment and Aftermarket manufactured tensioners are built in Dayco’s QS9000/ISO9001 facility in Springdale, Arkansas. • Dayco manufactured Aftermarket tensioners are designed to fit and perform to Original Equipment specifications regardless of mid-year model changes. • Dayco manufactured tensioners feature the unique, patented “flat spring” design. • Dayco manufactured tensioners utilize tough, long lasting cast aluminum housing and arms. • Pulleys incorporated into Dayco tensioners feature smoother surfaces; tighter tolerances and lifetime lubricated ball bearings. • Dayco tensioners offer superior application coverage. A1 Tensioners... What Do They Do? Serpentine drive systems utilize a single long belt which “snakes” around most, if not all, of the Automatic Belt Tensioner utilizes a “flat spring” technology, accessory pulleys. The Dayco which allows for an increase in torque to be transmitted to the belt when needed. In a conventional V-belt system, this torque is limited to static tension due to the belt adjustments having locked centers. If, when installed, the belt was tensioned insufficiently, or if the belt has stretched or worn through use, it will slip when placed under a load resulting in poor accessory performance and premature belt failure. If the belt was over tensioned when installed, there is risk of premature accessory bearing failure. A spring-loaded automatic tensioner compensates for the belt’s stretch and wear by maintaining a constant tension on the belt throughout the life of the belt. Automatic Belt Tensioner Dayco® Features And Benefits 1 ® 13 6 2 3 4 14 12 5 7 8 9 10 11 Replace A Tensioner When: Serpentine belt drives consist of a single belt, which powers a variety of accessory drives. To maintain the proper tension and to prevent the belt from slipping or flipping off the pulleys, an automatic (spring loaded) tensioner is incorporated into the drive system. Tensioner Noise Listen closely to the tensioner when the engine is running. When the engine is shut off and the belt is removed...check the pulley for free rotation. If you hear noise or feel resistance to turning this could be the sound of impending bearing failure. Loss Of Tension Tension loss is evidenced by belt squeal or an accessory that has stopped working completely. Metal To Metal Contact If there is any metal to metal contact between arm and spring case, this is a sign of spring bushing or pivot bushing wear. A2 Belt Tracking Improperly If the belt is tracking off center, at or off the edge of the pulley, or if the belt flips off the tensioner, this is a sign of bushing wear resulting in tensioner misalignment. Sticking Or Notchy Movement When removing or replacing the belt, check the tensioner torque by applying torque to move the tensioner arm from stop to stop. The arm should move smoothly and without hesitant movement. Broken Or Cracked Tensioner “Stops” When removing or replacing the belt, check the tensioner “stops” located on both the tensioner arm and of spring case to see if they are broken. All components of the Dayco Automatic Belt Tensioner have been selected for their individual characteristics such as weight, wear protection, lubricity, overall strength and deflection rates. Typical component materials include high-grade spring steel, diecast aluminum and engineered resins. These materials and engineering expertise have resulted in the design of a tensioner, which will deliver the proper output torque required to maintain belt tension throughout the service life of the system. Dayco Automatic Belt Tensioners…built to outperform and outlast competitive OE parts. Features Benefits 1. Steel locator pin • Properly locates tensioner 2. Heavy duty cast aluminum spring case • Resists cracking and fatigue 3. Thermoplastic rubber spring slot plug • Protects against detrimental environmental elements 4. Steel pivot tube (where application demands) • Provides additional strength for critical torque requirements 5. Lubricated Nylon pivot tube bushing • Promotes quieter performance and longer life 6. Teflon strip • Abrasion resistant • Permits spring to operate smoothly and efficiently 7. Coated flat wire spring • Coated to resist rust • Concentric, provides a more even degree of constant tension 8. Nylon spring bushing • Promotes quieter performance • Maintains pulley alignment 9. Heavy duty cast aluminum tensioner arm • Assures additional strength and less distortion 10. Nylon armplate bushing • Wear surface between arm and armplate provides smooth operation and damping 11. Steel Armplate • Provides uniform axial force for consistent damping and arm alignment 12. Engineered grooved or (crowned) glass filled polymer pulley (or steel where application demands) • Meets OEM performance standards • Pulley bearing lubricated for life • Keeps belts running in the center of pulley 13. Pulley dust cover • Protects against detrimental environmental elements 14. Zinc coated pulley mounting bolt • Resists rust and corrosion A3 Caractéristiques et avantages du tendeur à courròie automatique de Dayco® Dayco® Tensor Automático De Correas 1 1 13 6 2 3 4 13 14 6 2 12 5 3 7 4 14 12 5 7 8 8 9 9 10 10 11 11 El accionamiento con correas serpentinas consiste de una única correa la cual impulsa una variedad de accesorios. Con el fin de mantener la tensión correcta y evitar que la correa resbale o salte de las poleas, se incorpora un tensor automático (cargado con resorte) en el sistema de accionamiento. Un système d’entraînement par courroie à serpentin consiste en une courroie unique qui alimente toute une gamme d’autres mécanismes secondaires. Le système incorpore un tendeur automatique (à ressort) servant à maintenir une tension adéquate et à empêcher que la courroie ne ressorte des poulies ou se torde. Todos los componentes del Tensor Automático de Correas Dayco (Sin Huelgo) han sido seleccionados por sus características individuales tales como el peso, protección contra el desgaste, lubricidad, resistencia total y grado de desviación. Los materiales componentes típicos incluyen: acero de alta calidad para resortes, aluminio fundido a presión y resinas de fórmula especial. Estos materiales y la pericia en ingeniería han dado como resultado el diseño de un tensor que entrega el torque de salida requerido para mantener la tensión de las correas durante toda la vida de servicio del sistema. Tensores Automáticos Para Correas Dayco … construidos para durar y rendir más que las piezas del Equipo Original. Tous les composants du tendeur de courroie automatique de Dayco ont été sélectionnés en raison de leurs caractéristiques individuelles telles le poids, la résistance à l’usure, la lubricité, la solidité et le taux de déflection. Les matéraux typiques formant ces composants comprennent de l’acier à ressorts de qualité supérieure, de l’aluminium moulé sous pression et des résines de haute technologie. Ces matériaux, jumelés à l’expertise en génie qui les caractérise, produisent un tendeur apte à livrer le couple de sortie nécessaire au maintien de la tension de courroie requise pendant la période d’utilisation du système. Les tendeurs à courroie automatiques de Dayco ... conçus pour surpasser les pièces originales, tant au niveau de la performance que de la résistance. Características Beneficios Caractéristiques Avantages 1. Pasador localizador de acero • Ubica correctamente al tensor 1. Goupille de positionnement en acier • Assoit correctement le tendeur 2. Caja del resorte de aluminio de servicio pesado • Resiste rajaduras y fatiga 2. Logement de ressort en aluminium moulé résistant • Résiste aux fissures et à l’usure 3. Tapón de ranura del resorte de caucho termoplástico • Protege contra elementos perjudiciales del ambiente 3. Bouchon à fente de ressort de caoutchouc thermoplastique • Offre une protection contre les éléments environnementaux néfastes 4. Tubo pivote de acero (donde la aplicación lo requiera) • Provee resistencia adicional para requerimientos críticos de torque 4. Tube de pivot en acier (lorsque l’application le requiert) 5. Buje del tubo pivote de Nylon lubricado • Conduce a un funcionamiento más silencioso y mayor duración • Fournit une force supplémentaire lorsque qu’un couple supérieurest requis 6. Tira de teflón • Resistente a la abrasión • Permite que el resorte funcione suavemente y eficientemente 5. Manchon de tube de pivot en nylon lubrifié • Favorise une performance moins bruyante et une durabilité accrue 6. Bande de téflon • Résiste à l’usure • Permet le fonctionnement doux et efficace du ressort 7. Ressort à fil plat enduit • Enduit pour résister à la rouille • Concentrique pour offrir une tension encore plus constante et uniforme 8. Manchon à ressort en nylon • Favorise une performance moins bruyante • Maintient l’alignement de la poulie 9. Bras de tendeur en aluminium moulé résistant • Assure une force supplémentaire et une distorsion réduite 7. Resorte de alambre plano revestido • Revestido para resistir el óxido • Concéntrico, para proveer un mayor grado de tensión constante 8. Buje del resorte de Nylon • Favorece un funcionamiento más silencioso • Mantiene la alineación de la polea 9. Brazo del tensor de aluminio de servicio pesado • Asegura mayor resistencia y menor distorsión 10. Buje de Nylon para la placa del brazo • La superficie de desgaste entre el brazo y la placa del brazo provee un funcionamiento suave y amortiguación 11. Placa del brazo, realizado en acero • Provee un esfuerzo axial uniforme para brindar consistencia en la alineación y amortiguación del brazo. 10. Manchon de plaque de bras en nylon • Procure en fonctionnement lisse et amorti de la surface d’usure entre le bras et sa plaque 12. Polea especial ranurada (o abombada) de polímero relleno con vidrio (o de acero donde lo exija la aplicación) • Cumple con las normas de desempeño de los Fabricantes de Equipos Originales • Cojinete de la polea con lubricación perpetua • Mantiene a las correas en el centro de la polea 11. Plaque de bras en acier • Fournit une force axiale uniforme pour un amortissement et un alignement du bras constants 12. Poulie en polymère et verre rainurée (ou bombée) et sophistiquée(ou en acier lorsque l’application le requiert) • Satisfait aux normes de performance originales • Roulement de poulie lubrifié à vie • Assure le déploiement central des courroies dans la poulie 13. Couvercle de poulie antipoussière 14. Boulon de fixation de poulie galvanisé • Offre une protection contre les éléments environnementaux néfastes • Résiste à la rouille et à la corrosion 13. Tapa cubrepolvo de la polea • Protege contra elementos perjudiciales del ambiente 14. Perno de montaje bañado en cinc • Resiste el óxido y la corrosión A4 A5 Automatic Belt Tensioners Automatic Belt Tensioners 89201 89202 89208 89209 89210 89203 89204 89211 89213 89205 89206 89215 89207 89216 A6 A7 Automatic Belt Tensioners Automatic Belt Tensioners 89225 89218 89217 89226 89219 89227 89220 89221 89228 89222 89229 89223 89230 89224 A8 A9 Automatic Belt Tensioners Automatic Belt Tensioners 89237 89231 89238 89232 89239 89233 89240 89234 89235 89241 89242 89236 A10 A11 Automatic Belt Tensioners Automatic Belt Tensioners 89249 89250 89244 89243 89251 89245 89252 89246 89253 89247 89248 A12 89254 A13 Automatic Belt Tensioners 89255 Automatic Belt Tensioners 89256 89261 89262 89257 89263 89264 89258 89265 89259 A14 89266 89260 A15 Automatic Belt Tensioners Automatic Belt Tensioners 89284 89267 89268 89285 89269 89286 89280 89287 89288 89281 89283 89289 A16 A17 Automatic Belt Tensioners Automatic Belt Tensioners 89295 89290 89291 89296 89297 89292 89298 89299 89293 89300 89294 A18 A19 Automatic Belt Tensioners Automatic Belt Tensioners 89303 89304 89301 89305 89306 89302 89307 89308 A20 A21 Automatic Belt Tensioners Automatic Belt Tensioners 89309 89315 89310 89316 89311 89317 89312 89318 89313 89319 89314 89320 A22 A23 Automatic Belt Tensioners Automatic Belt Tensioners 89327 89321 89328 89322 89323 89329 89324 89326 89331 89330 89333 89325 A24 A25 Automatic Belt Tensioners Automatic Belt Tensioners 89340 89334 89341 89335 89342 89336 89337 89343 89344 89338 89339 89345 89346 A26 A27 Automatic Belt Tensioners Automatic Belt Tensioners 89354 89347 89355 89356 89348 89349 89350 89357 89360 89351 89352 A28 89353 89361 A29 Idler/Tensioner Pulleys Automatic Belt Tensioners 89362 89001 89363 89002 89003 89364 89004 89005 89365 89006 89367 89366 89007 A30 A31 Idler/Tensioner Pulleys Idler/Tensioner Pulleys 89008 89017 89018 89009 89010 89020 89025 89012 89026 89013 89014 89027 89028 89015 A32 89016 A33 Idler/Tensioner Pulleys Idler/Tensioner Pulleys 89029 89038 89036 89031 89032 89037 89039 89040 89042 89033 89043 89035 89034 A34 A34 89044 A35 Idler/Tensioner Pulleys Idler/Tensioner Pulleys 89045 89046 89052 89053 89047 89054 89055 89056 89048 89049 89057 89050 89058 89051 A36 A36 A37 A37 Idler/Tensioner Pulleys Idler/Tensioner Pulleys 89076 89059 89070 89077 89078 89071 89072 89079 89073 89080 89074 A38 89075 89081 89082 A39 Idler/Tensioner Pulleys Idler/Tensioner Pulleys 89083 89086 89085 89094 89087 89092 89093 89088 89095 89096 89089 89097 89098 89090 89091 A40 A41 Idler/Tensioner Pulley Dimensions And Configuration Idler/Tensioner Pulley Dimensions And Configuration DAYCO PULLEY O.D. PULLEY I.D. CONFIGURATION 89001 ..................................................90mm ....................................................17mm ..........................................Flat w/Flange, 31mm wide 89002 ..................................................90mm ....................................................17mm ..........................................4 Groove w/Flange 89003 ..................................................76mm ....................................................17mm ..........................................Flat w/Flange, 26mm wide 89004 ..................................................90mm ....................................................17mm ..........................................6 Groove w/o Flange 89005 ..................................................76mm ....................................................17mm ..........................................Flat, 33mm wide 89006 ..................................................90mm ....................................................17mm ..........................................Flat Steel, 30mm wide 89007 ..................................................76mm ....................................................17mm ..........................................Flat Steel, 31mm wide 89008 ..................................................76mm ....................................................17mm ..........................................7 Groove w/Flange 89009 ..................................................76mm ....................................................17mm ..........................................6 Groove w/Flange 89010 ..................................................82mm ....................................................17mm ..........................................Flat, 26mm wide 89012 ..................................................90mm ....................................................17mm ..........................................6 Groove w/Flange 89013 ............................................ 127mm ....................................................17mm ..........................................6 Groove w/Flange 89014 ............................................ 109mm ....................................................17mm ..........................................6 Groove w/Flange 89015 ..................................................70mm ....................................................17mm ..........................................6 Groove w/Flange 89016 ..................................................76mm ....................................................17mm ..........................................Flat Steel, 37mm wide 89017 ..................................................76mm ....................................................17mm ..........................................Flat, 26mm wide 89018 ..................................................90mm ....................................................17mm ..........................................Flat, 27mm wide 89020 ..................................................90mm ....................................................17mm ..........................................1/2 inch V-Belt pulley 89025 ..................................................94mm ..........................................................................................................1/2 inch V-Belt w/Bracket 89026 ............................................ 100mm ....................................................17mm ..........................................Flat Steel, 28mm wide 89027 ..................................................90mm ....................................................12mm ..........................................Flat Steel, 30mm wide 89028 ................................................127mm ....................................................12mm ..........................................6 Groove w/Flange 89029 ................................................ 70mm ....................................................17mm ..........................................4 Groove, Steel w/Flange 89031 ..................................................80mm ..........................................................................................................Flanged Pulley w/Bracket 89032 ..................................................80mm ..........................................................................................................Flanged Pulley w/Bracket 89033 ..................................................70mm ....................................................17mm ..........................................Flat, 26mm wide 89034 ................................................123mm ....................................................12mm ..........................................1/2 inch V-Belt pulley 89035 ..................................................95mm ....................................................12mm ..........................................3/8 inch V-Belt pulley 89036 ..................................................81mm ....................................................17mm ..........................................1/2 inch V-Belt pulley 89037 ..................................................76mm ....................................................17mm ..........................................Flat, 22mm wide 89038 ..................................................70mm ....................................................12mm ..........................................4 Groove, Steel w/Flange 89039 ..................................................81mm ....................................................12mm ..........................................1/2 inch V-Belt Pulley 89040 ..........................................................................................................................................................................Flanged Pulley w/Bracket 89042 ..................................................70mm ......................................................8mm ..........................................Flat, 28mm wide 89043 ..................................................70mm ......................................................8mm ..........................................Flat, 26mm wide 89044 ..................................................80mm ......................................................8mm ..........................................Flat, 25mm wide 89045 ..................................................80mm ......................................................9mm ..........................................Flat, 28mm wide 89046 ..................................................70mm ....................................................10mm ..........................................Flat, 25mm wide 89047 ..................................................90mm ..........................................................................................................Flanged Pully w/Bracket 89048 ..................................................90mm ....................................................17mm ..........................................Flat Steel, 37mm wide 89049 ..................................................80mm ....................................................17mm ..........................................4 Groove Steel w/Flange 89050 ..................................................70mm ....................................................15mm ..........................................4 Groove Steel w/Flange 89051 ..................................................76mm ....................................................17mm ..........................................6 Groove w/Flange 89052 ..................................................70mm ....................................................17mm ..........................................Flat Steel 27mm wide 89053 ..................................................76mm ....................................................17mm ..........................................8 Groove Steel w/Flange 89054 ..................................................90mm ....................................................17mm ..........................................7 Groove w/Flange 89055 ................................................100mm ....................................................17mm ..........................................Flat 30mm wide 89056 ................................................107mm ....................................................17mm ..........................................1/2 inch V-Belt Pulley 89057 ..................................................90mm ....................................................17mm ..........................................8 Groove Steel w/Flange 89058 ..................................................70mm ....................................................17mm ..........................................Flat Steel, 28mm wide A42 DAYCO PULLEY O.D. PULLEY I.D. CONFIGURATION 89059 ..................................................76mm ....................................................17mm ..........................................Flat Steel, 28mm wide 89070 ..................................................64mm ....................................................17mm ..........................................6 Groove, Steel w/Flange 89071 ..................................................78mm ......................................................9mm ..........................................Flat 25mm wide 89072 ..................................................60mm ..........................................................................................................4 Groove, w/Flange w/Bracket 89073 ..................................................70mm ....................................................15mm ..........................................3/8 inch V-Belt Pulley 89074 ..................................................90mm ....................................................15mm ..........................................Flat 25mm wide 89075 ..................................................85mm ......................................................8mm ..........................................Flat 25mm wide 89076 ..................................................90mm ......................................................8mm ..........................................Flat 25mm wide 89077 ..................................................70mm ..........................................................................................................Flat w/Bracket 89078 ..................................................70mm ............................................................................................................Flat w/Bracket 89079 ..................................................80mm ......................................................8mm ..........................................Flat 32mm wide 89080 ..................................................64mm ......................................................8mm ..........................................8 Groove w/Flange 89081 ..................................................80mm ....................................................12mm ..........................................Flat 25mm wide 89082 ..................................................80mm ......................................................8mm ..........................................Flat 25mm wide 89083 ..................................................64mm ......................................................8mm ..........................................6 Groove w/o Flange 89085 ..................................................70mm ......................................................8mm ..........................................6 Groove w/Flange 89086 ..................................................64mm ......................................................8mm ..........................................6 Groove w/Flange 89087 ..................................................80mm ....................................................17mm ..........................................Flat 25mm wide 89088 ..................................................80mm ......................................................8mm ..........................................Flat 21mm wide 89089 ..................................................80mm ....................................................10mm ..........................................Flat 25mm wide 89090 ..................................................75mm ......................................................8mm ..........................................6 Groove w/Flange 89091 ..................................................70mm ............................................................................................................Flat w/Bracket 89092 ..................................................75mm ............................................................................................................Flat w/Bracket 24.5mm wide 89093 ..................................................70mm ............................................................................................................Flat w/Bracket 28.5mm wide 89094 ..................................................74mm ....................................................17mm ..........................................Flat 39mm wide 89095 ..................................................59mm ....................................................17mm ..........................................6 Groove w/Flange 89096 ................................................129mm ....................................................17mm ..........................................8 Groove w/Fange 89097 ..................................................90mm ....................................................10mm ..........................................Flat Steel, 30mm wide 89098 ..................................................76mm ....................................................10mm ..........................................Flat Steel, 31mm wide A43 Notes A44
