Craftsman 1450 Series, 247.77638 Sharpening or Replacing the Shredder Blade, Flail Housing

Page 17

4, Removethechipperchutesupportbracefromthe frameby removingthe hexbolts.

5.Rotateimpellerassemblyby handuntil youlocateone of two chipperbladesin thechipperchuteopening.

6, Removethebladeby removingthe internalhex screws,lock washers,andhex nutswhichsecureit to the impeller.Retainthe hardware,SeeFigure15,

NOTE:Usea3/16" hexkey(Allen)wrenchon theoutsideof the blade anda 1/2" box(or socket)wrenchonthe insideof the impeller.Hold the Allenwrenchstationaryand rotatethe box(or socket)wrenchto loosenthenut.

7.

Installa replacementblade(Part No. 742-0544)withthe hardware

 

 

removedearlieror sharpenand replaceexistingblade.

 

IMPORTANT:Whensharpeningthe blade,protecthandsby using

 

gloves.Followthe originalangleof grindandmakesureto removean

 

equalamountfromeachblade.

 

8.

To replacetheother blade,rotatethe impellerto exposethe

Figure15

 

secondbladeand repeatthe stepsabove.

 

NOTE: Makecertainbladesare reassembledwiththe sharpedge facingthe samedirectionas when removed.Torquehardwareto 250

-300in. Ibs.

Weld Studs,

The impeller'schipperbladesand shredderbladearesharp.Wear leatherworkglovesto protectyour hands.

Impeller

Blade

J

SHARPENING OR REPLACING THE SHREDDER BLADE

1.Stopthe engineandmakecertainthatallmovingpartshave cometo a completestop.

2.Disconnectthe sparkplugwire andgroundagainsttheengine.

3.Lowerthehopperassemblyandplacea blockundertheflailhousing.

4.Removethesix hexlocknutsandflatwashersfromthe weld studsonthe flail housing.Retainthe hardware.

5.Carefullyseparatethe hopperassemblyfromthe impelleras- semblyand removethe shredderplate.The shredderplatecan be identifiedby referringto item29in the partsliston page20 &21.

NOTE:Whenreassemblingthe shredderplate,makecertainthe embossedtab facesinwardtowardstheimpeller.

6.Removethetwo wingknobsthatsecurethe chutedeflectorand raisethe chute.

7.Inserta 1/2" or3/4" diameterpipethroughthe flail screenintothe impellerto keepit fromturningor removethe flail screenand inserta pieceof woodintothe chuteopening.

8.A. Removethe twointernalhex screws,lockwashers,andhex locknutswhichsecurethe shredderbladeto the impeller.

B. Removethe hexbolt,lockwasher,andflat washerto completelyfreeshredderblade.SeeFigure16.

9.Installa replacementblade(Part No.742-0544)withthe hardware removedearlieror sharpenandreplaceexistingblade.

/

Flail Housing

Figure16

IMPORTANT:When reassemblingthe shredderblade,tightencenter boltto between550and700in.-Ibs,andthe twooutsideboltsto

between250and350in.-Ibs.

NOTE:Usea 3/16"hex key(Allen)wrenchonthe outsideof the shredderbladeanda 1/2" box(or socket)wrenchon the insideof the shredderblade.Holdthe Allenwrenchstationaryand rotatethe box (orsocket)wrenchto loosenthe nut. Usecautionwhen removingthe bladeto avoidcontactingthe weldstudson housing.

IMPORTANT:Whensharpeningthe blade,followtheoriginalangle of grindas a guide.It is extremelyimportantthateachcuttingedge receivesan equalamountof grindingto preventan unbalancedblade. An unbalancedbladewill causeexcessivevibrationwhen rotatingat highspeedsandmaycausedamageto the unit. The bladecan be testedby balancingit on ascrewdriverornail. Removemetalfromthe heavysideuntil it is balancedevenly.

17

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Contents FORM1/O.769-05040 5/4/2009 Model NoPac Page19Es3-6 Page31Maintainor replacesafetyandinstructionslabels,as necessary Your Responsibility=Restrict the useof this powermachinetoTraining PreparationReplacegasolinecapandtightensecurely Maintenance & StorageOperation Spark Arrestor Do not Modify EngineRead the Operatorsmanuals Safety SymbolsTo Avoid Serious iNJURY To Avoid Serious iNJURYOpening Carton Attaching the Hopper AssemblyRemoving UNiT from Carton Loose Parts in CartonAttaching the Chipper Chute Attaching the Chute DeflectorAttaching the BAG Hopper Assembly Meets Ansi Safety StandardsTamper Chute DeflectorGAS and OIL FILL-UP Older 32F Warmer Oil Viscosity ChartTo Start Engine Oil one bottle shipped with unit FirstTime UseTo Stop Engine Lowering the Hopper AssemblyShredding ChippingMaintenance Maintenance SchedulePorcelain General RecommendationsReplacesparkplugwire beforestarting Servicing the Air CleanerEnd Cap----d To Drain OilLubrication Clean EquipmentRemoving the Flail Screen Sharpening or Replacing Chipper BladesBetween250and350in.-Ibs Flail HousingSharpening or Replacing the Shredder Blade Preparing the Chipper Shredder Cleanengineof surfacedebrisPreparing the Engine Andblowerhousing Plugwire andremovelodgedobjectWire.ContactyourSearsParts& RepairCenter OpeningCraftsman Chipper Shredder -- Model No Chipper Shredder B IViodel No Craftsman Chipper Shredder B IViodel No WheelComplete,10.0x 4.0 Gray 5o5 188 221O22I72A 1005 1070 6949180 Pin-FloatHinge 699220 ScrewFuelTank 192 690083 Adjuster-RockerArm6961360 696143 Valve-Choke699480 ScrewBlowerHousing 791478 Housing-Blower692603 Wire-Stop 356A 692390 695815 Wire-Stop794815 Fan-Flywheel 2043120536e9 ReplacementEngine690971.+ Gasket-RockerCover 697691 Cover-RockerIS Running Thah 10% EthaholSears Emission Control Defects Warranty Provisions Sears Emission Control Defects Warranty CoverageGDOC-100182RevA ModerateHereswhattheRepairProtectionAgreement*includes AggravationWhenhavingRepairProtectionAgreementcansaveyoumoneyand Expires.Purchaseyour RepairProtectionAgreementtodayOperaci6n seguras Declaraci6n de garanta Pagina36-39 MontajePreparativos CAPACITACiONUtilices61orecipientesparagasolinaautorizados OperacionManejoseguro de la gasolina No Modifique EL Motor Mantenimiento Y AlmacenamientoAviso Referido a Emisiones GuardachispasSilVIBOLOS DE Seguridad Coivio Sacar LA Unidad DE LA Caja Apertura DE LA Caja DE CartonPiezas Sueltas Dentro DE LA Caja Instalacion DE LA Tolva IviontajeDE LA Cortadora COLOCACl6N DEL Canal DeflectorCOLOCACl6N DEL Canal Sostienenel canalde lacortadoraa la cajadelmotor COLOCAClON DE LA BolsaCumple con los estandares de seguridad de Ansi Para Encender EL Motor Llenado DE Gasolina Y AceiteGasolina Aceite se enva una botella junto con la unidad PrimerusoTrituracion Para Detener EL MotorCorte C6MO Bajar EL Montaje DE LA TolvaLubricaci6nconpetr61eoligero Recomendaciones GeneralesUn aditivodegasolinaal gas enel TanqueSaquela varilladel niveldeaceitey limpielimpiocon latel Servicio Del Filtro De AireCambio Del Aceite Del Motor Sustituyay aprieteel enchufededesagQedel aceiteLimpieza DEL Equipo LUBFIICACI6NExtraccion DE LA Pantalla DE DES Granado Afilado O Recambio DE LAS Cuchillas DE LA Cortadora250- 300pulgadasIbs Afilado O Canibio DE LA Cuchilla DELA Trituradora LA Preparacion LA Cortadora Trituradora PREPARACI6N DEL MotorYaquelos rnotoresalrnacenaronrn.sde 30dfas Lirnpieel motorde escornbrossuperficialesSears XirnoEs necesarioajustarelcarburador Alta velocidad Poca Ladistanciadisruptivade labujiaes rnuyBujiaensuciada Elfiltrode aireest,. sucioEsta p.ginase aplica s61oen EE.UU. y Canada GDOC-100182Rev.A El*Coverage en Canadvariaen algunosarticulos. Paradetalles Continuaci6nsedetallanlos puntosincluidosenel AcuerdoIlenosla IlarnadaCharnuscaCanaden Servicio de instalaci6nde SearsCall anytime, day or night U.S.A. and Canada LE-FOYER MSU-HOGAR

247.77638, 77638, 1450 Series specifications

The Craftsman 1450 Series Model 77638, also known as the 247.77638, is a powerful addition to the Craftsman lineup, showcasing the brand's dedication to quality and innovation in outdoor power equipment. This model is designed to provide reliable performance for both residential and commercial users, ensuring efficiency and ease of use in various applications.

One of the standout features of the Craftsman 1450 Series is its robust engine. Equipped with a strong 1450W motor, this model delivers ample power for tackling tough tasks. The motor is designed to be efficient, minimizing energy consumption while maximizing output, making it an eco-friendly choice for users conscious of their environmental footprint.

The 77638 also incorporates a user-friendly interface, making it accessible for both seasoned professionals and novices alike. Its ergonomic design includes comfortable handles and control mechanisms that ensure ease of operation, reducing operator fatigue during extended use. Coupled with its lightweight construction, maneuverability becomes a significant advantage, allowing users to navigate challenging terrains without hassle.

Durability is another key characteristic of the Craftsman 1450 Series. Constructed with high-quality materials, the model is built to withstand the rigors of frequent use. This ruggedness ensures longevity, making the investment worthwhile for anyone needing reliable outdoor equipment. The corrosion-resistant finish enhances its lifespan, protecting it against the elements.

In terms of technology, the Craftsman 1450 Series incorporates advanced safety features. An automatic shut-off mechanism prevents overheating, while the protective casing shields users from potential hazards. These safety measures ensure that users can operate the equipment confidently, knowing that they are protected.

Moreover, maintenance is simple with this model, as it is designed for easy access to internal components. Regular upkeep can be performed without the need for specialized tools, making it convenient for users to ensure their equipment remains in optimal condition.

In summary, the Craftsman 1450 Series Model 77638, 247.77638 stands out with its powerful motor, user-friendly design, durability, and innovative safety features. Ideal for a wide range of outdoor tasks, this model exemplifies Craftsman's commitment to delivering quality and performance. Whether for home maintenance or professional landscaping, the 77638 is a significant asset for any toolkit, reflecting the brand's renowned reputation for excellence in craftsmanship.
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