Craftsman 247.77635 manual Troubleshooting, Problem Cause Remedy

Page 18

TROUBLESHOOTING

Problem

 

Cause

 

Remedy

 

 

 

 

 

 

 

 

 

 

Engine fails to start

1.

Spark plug wire disconnected.

1.

Connect wire to spark plug.

 

2.

Fuel tank empty or stale fuel.

2.

Fill tank with clean, fresh gasoline.

 

3.

Throttle control lever not in

3.

Move throttle lever to FAST position.

 

 

correct starting position.

 

 

 

4.

Choke not in CHOKE position.

4.

Move choke to CHOKE position.

 

5.

Engine not primed.

5.

Prime engine.

 

6.

Blocked fuel system.

6.

See Sears Service Center to have fuel

 

 

 

 

system cleaned.

 

7.

Faulty spark plug.

7.

Clean, adjust gap, or replace.

 

 

 

 

 

Engine runs erratic

1.

Spark plug wire loose.

1.

Connect and tighten spark plug wire.

 

2.

Unit running on CHOKE.

2.

Move choke lever to OFF position.

 

3.

Dirt in fuel system

3.

See Sears Service Center to have fuel

 

 

 

 

system cleaned.

 

4.

Stale fuel.

4.

See Sears Service Center to have fuel

 

 

 

 

system cleaned. Fill tank with clean, fresh

 

 

 

 

gasoline.

 

5.

Dirty air cleaner.

5.

Clean or replace air cleaner.

 

6.

Carburetor out of adjustment.

6.

See authorized service dealer.

 

 

 

 

 

Too much vibration

1.

Loose parts or damaged

1.

See Sears Service Center.

 

 

impeller.

 

 

 

2.

Blade(s) damaged or not

2.

Replace or sharpen blade(s).

 

 

properly sharpened.

 

 

 

 

 

 

 

Engine overheats

1.

Engine oil level low.

1.

Fill crankcase with proper oil.

 

2.

Dirty air cleaner.

2.

Clean or replace air cleaner.

 

3.

Carburetor not adjusted

3.

See Sears Service Center.

 

 

properly.

 

 

 

 

 

 

 

Occasional skip

1.

Spark plug gap too narrow.

1.

Adjust gap to.030” (0.76 mm)

(hesitates) at high

 

 

 

 

speed

 

 

 

 

 

 

 

 

 

Unit does not

1.

Discharge chute clogged.

1.

Stop engine immediately and disconnect

discharge

 

 

 

spark plug wire. Clean shredder screen and

 

 

 

 

inside of discharge opening.

 

2.

Foreign object lodged in

2.

Stop engine and disconnect spark plug wire.

 

 

reduction chamber.

 

Remove lodged object.

 

3.

Low engine RPM.

3.

Always run engine at full throttle.

 

 

 

 

 

Rate of discharge

1.

Low engine RPM.

1.

Always run engine with the throttle in the

slows considerably or

 

 

 

FAST position.

composition of

2.

Chipper blades or shredder

2.

Replace blades or see your Sears Service

discharged material

 

blade dull.

 

Center.

changes.

 

 

 

 

 

 

 

 

 

NOTE: For repairs beyond the minor adjustments listed above, please contact your local Sears Service Center.

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Contents Horse Power Model NoSears, Roebuck And Co., Hoffman Estates, IL 60179 U.S.A Table of Contents WarrantySafety TrainingOperation Page Loose Parts In Carton See Figure AssemblyRemoving Unit From Carton Lowering the Chipper ChuteEmptying the Debris Collection Bag HousingAttaching The Debris Collection Bag Debris Collection BagKnow Your Chipper Shredder Meets Ansi safety standardsOperation Operating Controls See FigureTamper Gas And Oil Fill-upStopping Engine HopperType of Fuel Starting EngineGasoline Fuel Fill-upShredding Clearing the HopperCleaning the Reduction Chamber ChippingMaintenance Air CleanerLubrication Cleaning Engine Spark PlugChanging Oil Replacing the Chipper Blades Service and Adjustments Disconnecting Spark Plug Replacing the Shredder BladeCarburetor Adjustment ChamberStorage Chipper ShredderEngine Troubleshooting Problem Cause RemedySears Emission Control Defects Warranty Coverage Parts List Sears Craftsman 7.5 H.P. Chipper Shredder ModelPart Description Sears Craftsman 7.5 H.P. Chipper Shredder Model Carburetor Gasket SET 222 Repair Manual Cylinder Assembly Nut Governor Control Lever Engine Labels 777S32258 777D07574 777S32272Garantía limitada de la cortadora trituradora Craftsman ÍndiceGarantía 247.776350Seguridad CapacitaciónFuncionamiento Motor Piezas sueltas en la caja Ver Figura MontajeExtracción de la unidad de la caja Deslizamiento hacia abajo del canal de la cortadoraVaciado de la bolsa de recolección de desechos Colocación de la bolsa de recolección de desechosCumple con los estándares de seguridad de Ansi OperaciónConozca las propiedades de la cortadora trituradora Controles de funcionamiento Ver FiguraCarga de gas y aceite Detención del motorAceite se envía una botella de 20 onzas junto con la unidad Advertencia Sea sumamente Encendido del motorGasolina Tipo de combustibleLimpieza de la tolva TrituraciónCorte Cámara de reducciónLimpieza del canal de reducción Mantenimiento LubricaciónFiltro de aire Limpieza del motor Bujía de encendidoCambio de aceite Reemplazo de la hoja de la trituradora Servicio Y AjustesReemplazo de las hojas de la cortadora Desconexión de la bujíaAjuste del carburador Almacenamiento Cortadora trituradoraGuía Para LA Solución DE Problemas Problema Causa RemedioResponsabilidades del Propietario de la Garantía Repair Protection Agreements Acuerdo De Protección Para ReparacionesSears Parts & Repair Center Your HomeOur Home MY-HOME1-800-469-4663