Shindaiwa 81704 manual 139/150-Hour Maintenance, Spark Arrester Screen Maintenance

Page 16

139/150-Hour Maintenance

Maintenance after first 139-hours, then every 150-hours thereafter.

nCombustion chamber should be decar- bonized, and the valve clearance should be adjusted. It is highly recommended that this is done by a Shindaiwa-trained service technician.

nReplace the spark plug annually: Use only NGK CMR5H or equivalent resis- tor type spark plug of the correct heat range. Set spark plug electrode gap to 0.024-0.028 inch (0.6 -0.7 mm).

NOTE:

The NGK CMR5H also meets the requirements for electro magnetic compliance (EMC).

Valve Adjustment

1.Remove cylinder cover, rocker arm cover, and set piston at TDC-compresion.

CAUTION!

nPerforming a valve adjustment incorrectly may cause hard starting and/or can damage the engine.

nIf you are unfamiliar with this engine or uncomfortable with this proce- dure, consult with an authorized Shindaiwa servicing dealer.

2.Loosen adjuster locknut so that the 2.5 mm Allen socket head adjustment screw can turn freely.

3.Insert .004" (0.10 mm) feeler gauge for both intake and exhaust between valve stem tip and rocker arm.

4.Turn adjustment screw (clockwise = tighter, counter-clockwise = looser) until feeler gauge is almost snug. Back off just enough to allow gauge to slip out with limited resistance.

5.While holding adjustment screw in place with Allen driver, tighten locknut with wrench.

6.Turn engine over several times, and return to TDC-compression. Recheck with proper feeler gauge to make sure clearance adjustment did not change as a result of tightening locknut. Readjust as necessary.

7.Replace rocker arm cover gasket to as- sure proper sealing and install cover.

IMPORTANT!

If new gasket is not available and/or old gas- ket is not damaged, old gasket may be reused. Never use cracked or damaged gaskets!

Spark Arrester Screen Maintenance

If the engine becomes sluggish and low on power, check and clean the spark arrester screen.

WARNING!

Never operate the unit with a damage or missing muffler or spark arrester! Operating with a missing or damaged spark arrester is a fire hazard and could also damage your hearing.

1.With a 3 mm hex wrench remove the 3 engine cover screws and the engine cover. See Figure 32.

2.With a 4 mm hex wrench remove the 3 muffler bolts and the muffler. See Figure 32.

3.With a small flat bladed screwdriver remove the 2 screws holding the spark arrester screen and cover to the muffler. See Figure 32.

4.Remove the screen and clean it with a stiff bristle brush.

5.Inspect the cylinder exhaust port for any carbon buildup.

IMPORTANT!

If you note excessive carbon buildup, consult with an authorized Shindaiwa servicing dealer.

6.Reassemble the spark arrester, muffler and engine cover in the reverse order of disassembly.

Engine Cover

 

 

Screws

 

 

 

 

Engine

 

 

Cover

 

Muffler

Muffler

 

 

 

Gasket

 

 

 

Muffler

 

 

Bolts

 

 

Spark Arrester

 

 

Screen

 

 

Spark Arrester

 

Cover

Cover

 

 

Figure 32

Screws

 

16

Page 15 Page 17
Image 16
Page 15 Page 17
Contents C2510 Brushcutter C2510Safety Instructions ContentsIntroduction Properly Equipped Operator Always use the proper cutting tool for the jobSafety Labels Be Aware of the Working EnvironmentPrior to Assembly Specifications C2510Product Description Assembly Install the Cutting Attachment Shield C2510Cutting Attachment Shield Sub-Shield C2510Adjustments Handle Bar C2510 Install the handlebarAdjust Throttle Lever Free Play Reinstall the air cleaner coverInstalling a Trimmer Head Gear Case ShaftInstalling a Blade Remove the hex wrenchMixing Fuel Filling the Fuel TankStarting the Engine Examples of 501 mixing quantitiesAdjusting Engine Idle When the Engine StartsIdle Speed Adjustment Stopping the EngineShoulder Strap C2510 Checking Unit ConditionCutting Grass-Units equipped with a trimmer head Using a Blade C2510 Operating Units with a BladeDaily Maintenance General MaintenanceHour Maintenance 10/15-Hour Maintenance Every 10 to 15 hours of operation139/150-Hour Maintenance Spark Arrester Screen MaintenanceLong Term Storage Blade SharpeningShindaiwa Tornado Blade Multiple-tooth Circular BladeTroubleshooting Guide Engine does not StartAdditional Problems Manufacturers Warranty Coverage Garantía DE Servicio DE Solicitudes Continuación Diagnostico Guia Adicionales ProblemasDiagnostico Guia 18SPDiscos de Afilado Plazo Largo de AlmacenamientoMúltiples Dientes de Discos Tornado Shindaiwa DiscoGuardachispas Maya la de Mantenimiento Mantenimiento o horas 139/150 CadaShindaiwa autorizado Torsión de correctasHoras 50 Cada Mantenimiento Horas 10/15 Cada MantenimientoDiario Mantenimiento Horas 10 Cada MantenimientoGeneral Mantenimiento Cuchilla una con Unidades Operando C2510 Disco un UsandoCorte de Cabezal con Equipadas Máquinas Césped de Corte Unidad la de Condición la VerifiqueMotor del Mínima Marcha de Ajuste Motor del ParadaContinuación Motor del Arranque Mínima Marcha de AjusteMotor del Arranque Combustible de Tanque el LlenandoCombustible de Mezcla De proporción a mezclaCuchilla la Instalando Nylon de Cabezal del Instalación Continuación Ensamblaje Seguridad de tuercas las AprieteAcelerador del holgura la Ajuste Ajustes C2510 MangoEnsamblaje Producto del Descripción C2510 EspecificacionesEnsamblar de Antes Seguridad de Etiquetas Trabajo de Area del Alerta EstéEquipado Debidamente Operario El Seguridad de Instrucciones Limpios mangos los mantenga SiempreContenido Humana reproducción la Nocivos efectos otros u congénitosAlerta Mantengase Cuidado con TrabajeOrador
Top Page Image Contents