Craftsman 79480 manual Rocker Arms Intake, Exhaust, Replacing the Spark Plug, Cleaning

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N uts

Rocker Arms INTAKE

EXHAUST

Feeler Gauge

Spark Plug Hole

Fig. 33

Adjusting Nut _,

Rocker Arm

.003-.006 in.

(.076-.152 mm)

Intake Valve

Stem3auge

Valve Stem

Fig. 34

b. Recheck both clearances, and adjust as necessary.

9.Reinstall the rocker arm cover using a new gasket. Torque the screw to 20-30 in°lb (2.2-3.4 N°m).

10.Check the spark plug and reinstall. See Replacing the Spark Plug.

11.Replace the spark plug wire.

12.Reinstall the engine cover. Check alignment of the cover before tightening the screws. Tighten screws.

REPLACING THE SPARK PLUG

electrodesWARNING:. Grit in the engine could damage the cylinder. I Do not sand blast, scrape or clean

Use a Champion RDZ19H or a replacement part number 753-05255 spark plug. The correct air gap is 0.025 in. (0.635 mm.). Remove the plug after every 25 hours of operation and check its condition.

1.Stop the engine and allow it to cool. Remove the eight (8) screws on the back of the engine cover with a Flat-head or T- 25 Torx screwdriver (Fig. 31).

If using a torque wrench torque to: 110-120 in.*lb. (12.3-13.5 N°m) Do not over tighten.

SPARK ARRESTOR MAINTENANCE

Inspect the spark arrestor after every 50 hours of operation.

1.Remove the rear engine cover. See Rocker Arm Clearance.

2.With a flat blade screwdriver, or a Torx T-20 bit and a T-25 bit, remove the 2 screws attaching the spark arrestor cover to the muffler (Fig. 36).

Muffler _____

 

T-25 Screw

Spark Arrestor Screen

 

 

Spark Arrestor Cover

__<_

T-20 Screw

 

Fig. 36

 

3.Pull the tab on the spark arrestor cover out of the muffler. Remove the spark arrestor cover.

4, Remove the spark arrestor screen from the spark arrestor cover.

5.Clean the spark arrestor screen with a wire brush or replace it.

6.Reinstall the spark arrestor screen, spark arrestor cover, and screws.

CLEANING

 

turn your unit off and allow it to cool before you clean

I ,_

I WARNING:or service it. To avoid serious personal injury, always

Use a small brush to clean off the outside of the unit. Do not use

strong detergents. Household cleaners that contain aromatic oils such as pine and lemon, and solvents such as kerosene, can damage plastic housing or handle. Wipe off any moisture with a soft cloth.

STO RAG E

Never store the unit with fuel in the tank where fumes may reach an open flame or spark.

Allow the engine to cool before storing.

Lock up the unit to prevent unauthorized use or damage.

Store the unit in a dry, well-ventilated area.

Store the unit out of the reach of children.

LONG TERM STORAGE

1.Drain all gasoline from the gas tank into a container. Do not use gas that has been stored for more than 60 days. Dispose of the old gasoline in accordance to Federal, State, and Local regulations.

2.Start the engine and allow it to run until it stalls. This ensures that all gasoline has been drained from the carburetor.

3.Allow the engine to cool. Remove the seven (7) screws on the back of the engine cover with a Flat-head or T-25 Torx screwdriver. Remove the spark plug and put 5 drops of high quality motor oil into the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.

NOTE: Remove the spark plug and drain all of the oil from the cylinder before attempting to start the blower after storage.

2.Grasp the plug wire firmly and pull the cap from the spark plug.

3.Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise.

4.Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.635 mm.) using a feeler gauge (Fig. 35).

0.025 in.

(0.635 mm.)

I.

T

A

T

4.Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance to Federal, State and Local regulations.

5.Thoroughly clean the unit and inspect for any loose or damaged parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts. The unit is ready for storage.

TRANSPORTING

Allow the engine to cool before transporting.

Secure the unit while transporting.

Drain the gas tank before transporting.

Tighten gas cap before transporting.

5. Install a correctly-gapped sparkFig. 35 plug in the cylinder head. Turn

the 5/8 in. socket clockwise until snug.

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Contents Operators Manual California Proposition 65 Warning Spark Arrestor NoteRead ALL Instructions SpecialOfinjuryatarateforwhichitwasdesigned Other Safety WarningsSymbol Meaning Safety Alert Symbol Safety and International SymbolsCraftsman Professional Full Warranty Weareyeand Hring ProtectionPage Installing Flex Tube Installing the Lower Blower Tubes and NozzleInstalling the Upper Blower Tube Secure the Throttle Cables Second LowerAdding OIL to Crankcase Initial USE Recommended OIL TypeRecommended Fuel Type Fueling the UnitStopping Instructions Starting Instructions Cold StartHolding the Blower Adjusting the Suspension SystemOperating Tips ApplicationsFrequency Maintenance Required Maintenance ScheduleAIR Filter Maintenance Refer toRocker ARM Clearance Idle Speed AdjustmentAir Filter Cover Back Plate RemoveRocker Arms Intake CleaningExhaust Replacing the Spark PlugHELP? Owners Warranty Responsibilities Your Warranty Rights and ObligationsManufacturers Warranty Coverage Emission Warranty Parts List Defects Warranty RequirementsSoplador DE Mochila Parac H Ispas Indice DE ContenidosProposicion 65 DE California Simbolo SignificadoDurante LA Operacion CargaoelcombustiblemientrasoperalaunidadDealerta DE Seguridao Simbolos DE Seguridad E InternacionalesI0 LEA EL Manual DEL Operador USE Proteccion OCULAR¥ AUDIT!VATubo del codo Boquilla Instalacibn del tubo superior de la sopladora Instalacibn del tubo flexibleTubo flexible Cables del Abrazadera Tubo del codoAbrazadera De laCarga DE Aceite EN EL Carter DEL Cigueiial USO Inicial Tipo DE Aceite RecomendadoTipo DE Combustible Recomendado Instrucciones DE Parada Instrucciones DE Arranque Arranque EN FrioCuerda de arranque Desconexibn del sistema de suspensibn Ajuste DEL Sistema DE SuspensionSostenimiento DE LA Sopladora EIO Consejos Utiles Sobre LA OperacionFrequencia Programa DE MantenimientoMantenimiento Requerido VEA Cambio DEL AceiteAjuste DEL Velocidad Minima Huelgo DEL Brazo OscilanteMantenimiento DEL Amortiguador DE Chispas EscapeCambio DE LA Bujia DE Encendido LimpiezaE14 CausaResponsabilidades del Propietario segtn la Garantia Los Derechos y Obligaciones de Usted segtn la GarantiaE15 Los Derechos y Obligaciones de Usted segdn la Garantia Lista de Piezas de Emisiones en GarantiaCobertura de la Garantia del Fabricante Respensabilidades del Prepietarie segtn la GarantiaDescription E17E18 E19 MY-HOME

79480 specifications

The Craftsman 79480 is a versatile and powerful tool designed to meet the needs of both DIY enthusiasts and professionals alike. Known for its robust performance, this tool combines innovative technologies with user-friendly features to enhance efficiency and convenience.

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