Scag Power Equipment STT-31EFI-SS E v e n C u t o n F l at, Cut, or Rough Contour

Page 25

Section 5

TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)

R

Condition

Cause

Cure

U n e v e n C u t o n F l at

Lift worn from blade

Replace blade

Ground - Wavy High-Low

 

 

Appearance, Scalloped

Blade upside down

Mount with cutting edge toward ground

Cut, or Rough Contour

 

 

 

Deck plugged, grass accumulation

Clean underside of deck

 

Too much blade angle (deck pitch)

Adjust pitch and level

 

Deck mounted improperly

See your authorized SCAG dealer

 

Bent spindle area

See your authorized SCAG dealer

Width of Deck

 

 

SGB020

Dull blade

Sharpen blade

Uneven Cut on Uneven Ground-WavyAppearance, High-Low Scalloped Cut, or Rough Contour

 

May need to reduce ground speed, raise

Uneven ground

cutting height, and/or change direction

 

of cut

Width of Deck

 

 

SGB021

 

 

Sloping Ridge Across

Tire pressures not equal

Check and adjust tire pressure

Width of Cutting Path

 

 

 

Wheels uneven

Check and adjust tire pressure

 

Deck mounted incorrectly

See your authorized SCAG dealer

Deck not level side-to side

Check for level and correct

Width of Deck

SGB023

21

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Contents OPERATOR’S Manual With a serial number E3700001 to E3799999 STT61V-31EFI-SSSTT-31EFI-SS Table of Contents Following Section AdjustmentsGeneral Information USE only Scag Approved Attachments and AccessoriesIntroduction Direction ReferenceSymbol Description SymbolsSTT Models Signal Words Safety InformationThis symbol means Attention! Become Alert! Your Signal WordOperation Considerations Section Foldable Roll-over protection system if equipped Roll-Over Protection SystemFoldable Roll-Over Protection System Using a spark arrestor Maintenance Considerations & StorageSafety And Instructional Decals Install Belt COvER Before Power Head SpecificationsEngine ElectricalCutter Deck Weights And DimensionsHydraulic System Controls And Instrument Identification Operating InstructionsDump Valve Control Safety Interlock SystemStarting The Engine Initial Run-In ProceduresGround Travel And Steering Forward TravelReverse Travel Engaging The Deck Drive Cutter BladesParking The Mower Hillside OperationAfter Operation Removing Clogged MaterialMoving Mower With Engine Stopped Adjusting Cutting HeightRecommendations For Mowing Adjusting The Height Adjust Pedal Adjusting The Steering LeversTowing Optional Hitch Accessory Condition Cause Cure Troubleshooting Cutting ConditionsGround Wavy High-Low Appearance, Scalloped E v e n C u t o n F l atCut, or Rough Contour Sloping Ridge AcrossDirt or CuttingVery Close To the Ground Scalping Blades HittingStep Cut Ridge in Center Cutting pathBrake Adjustment AdjustmentsRH Steering Control Rod Adjustment Neutral AdjustmentTracking Adjustment Throttle Control and Choke AdjustmentsCutter Deck Pitch Cutter Deck LevelCutter Deck Height Cutter Deck Height AdjustmentPosition Custom-Cut Baffle Adjustment Early Models Custom-Cut Baffle AdjustmentPosition Custom-Cut Baffle Adjustment Current Production Position Custom-Cut Baffle Adjustment Clutch Air Gap Adjustment Electric clutch adjustmentMaintenance Chart Recommended Service Intervals MaintenanceProcedure Comments Break-In 100 200 500 First HoursLocation Lubrication Interval Lubricant NO. Places LubricationLubrication Fitting Points Changing Hydraulic Oil Checking Hydraulic Oil LevelEngine Fuel System Engine OilCleaning and/or Replacing Air Cleaner Element Engine Air CleanerReplacing In-Line Fuel Filter Elements Charging the Battery BatteryBattery Electrolyte First AID Jump StartingDrive Belts Blade ReplacementCutter Blades Blade InspectionCutter Deck Gearbox TiresChecking Lubricant Level Cooling System Cleaning the Radiator Debris ScreenChanging Lubricant Checking Coolant LevelChecking The Fan Belt Tension Body, Deck, And UpholsteryScag Approved Attachments And Accessories Illustrated Parts ListIllustrated Parts List 61V & 72VS Cutter Decks Description Cutter Deck Controls Cutter Deck Controls Sheet Metal Components Fender Weldment, RH Bolt, Hex Hd., 5/16-18 x 1, Zinc 43606 STT ROLL-OVER Protection System with Suspension Seat STT ROLL-OVER Protection System with Suspension Seat Deck Drive Components Belt Guard, Rear Hinge, Belt Guard 481309 Latch, Hood 482845 Engine & Attaching Parts 31HP-EFI Kohler Available through the individual engine manufacturer Brake and Steering Components Grip, Handle Bar Fuel and Hydraulic System Kohler 31EFI 24 403 BDP-16A Hydraulic Pump Assembly with Cooling FAN HG70924 Charge Pump Kit .19 STD. Splined HG51457 Electrical System 31HP-EFI Kohler Electrical System 31HP-EFI Kohler Heavy-Duty Commercial STT-EFI Decals Page2 Electrical Schematic Kohler 31HP EFI Limited Warranty Commercial Equipment Garantía Limitada Equipo Comercial Radiador del desechos de criba la de Limpieza .B Tapicería y plataforma CuerpoVentilador del correa la de tensión la de Verificación .C NotaRefrigeración de Sistema La de cambios de CajaCorte de plataforma Cuchilla la de Reemplazo .C LlantasNota Cuchilla la de Reemplazo .8-7 Figura Corte de cuchillas con trabajar al ojos yTransmisión de Correas Corte de CuchillasCuchilla la de Inspección .A Puente por Arranque .BBatería la de Carga .A BateríaAgua con Enjuague externo Contacto Batería DE Electrolito Para Auxilios PrimerosAire de filtro del elemento del reemplazo y/o Limpieza .A Motor del aire de FiltroLínea en combustible de filtro Del elementos los de Reemplazo .BMotor del Aceite Motor del combustible de SistemaHidráulico aceite de nivel del Verificación .A Hidráulico SistemaHidráulico aceite de Filtro .3-7 Figura Conexión de puntos de Lubricación .1-7 Figura Ciones Lubricación Ubica Lubricante Ubicación DE Intervalo LubricaciónHoras Recomendados servicio de Intervalos mantenimiento de Tabla MantenimientoMontaje de accesorios de Ubicación Montaje de Ranura Posiciones 7 de personalizado corte de deflector del Ajuste Personalizado corte de deflector del AjustePosiciones 3 de personalizado corte de deflector del Ajuste Corte de plataforma la de Tope .8-6 Figura Corte de plataforma la de AlturaCorte de Plataforma la de altura de Ajuste .7-6 FiguraCorte de plataforma la de Nivel Corte de plataforma la de InclinaciónCorte de Plataforma la de nivel del Ajuste .5-6 Figura De controles los de Ajustes Estrangulación y aceleraciónAlineación de Ajuste Neutral Ajuste Desplazamiento de AjustesEstacionamiento de freno del Ajuste AjustesFreno de varilla la de Ajuste .2-6 Figura Freno del vAjuste .1-6 FiguraLa de ancho del través Corte de trayectoriaInclinadas Crestas Inclinado CorteInclinadas Salientes La de ancho lo aIrregular perfil o Volado corte onduladaEntre cortar sin césped Corte de trayectoriasDe Franjas Vetas La en cortar sin céspedAltura la de ajuste de pedal del Ubicaciones .8-4 Figura Opcional enganche de accesorio RemolqueDirección de palancas las de Ajuste Altura de ajuste de pedal del AjusteDirección De palancas las de Ajuste .7-4 Figura Plataforma la de liberación de Palanca .6-4 FiguraCésped el Corte de altura la de AjusteCortar para Recomendaciones Detenido motor el con cortacésped del DesplazamientoOperación la de Después Atascado material del RetriroCortacésped del Estacionamiento Cuesta una en OperaciónReversa en Desplazamiento Corte de cuchillas plataforma de transmisión la de ConexiónCortador Del accionamiento de Interruptor .3-4 FiguraMotor del Arranque Dirección y terreno el en DesplazamientoInicial arranque de Procedimientos Adelante hacia DesplazamientoDescarga de válvula de Control .2-4 Figura Seguridad de bloqueo de SistemaLa Indica .1-4 Figura combustible de Indicador Usado .1-4 Figura dirección de derecho ControlInstrumentos e controles de Identificación Operación DE InstruccionesInstrumentos e Controles .1-4 Figura Productividad Dimensiones y PesosPotencia de Cabezal EspecificacionesEléctrico Sistema MotorSeguridad de y instructivas Calcomanías REvErSA AdELAntEAlmacenamiento y mantenimiento Chispas de supresor un UtiliceDe Consideraciones Mantener y inspeccionar de incumplimiento El Muerte la o graves lesiones ocasionarVuelco contra protección de plegable Sistema .1-2 Figura Equipado viene si vuelco contra Vuelco contra protección de SistemaProtección de Plegable Sistema Peligro Operación de Consideraciones Información Seguridad DEOperación la a previas Consideraciones Señalización de PalabrasSTT Modelos SímbolosDescripción Símbolo Instrucciones de Referencia General InformaciónScag POR Aprobados Dispositivos USE Sólo List Parts Illustrated 8 Sección Sección Sigue Comercial Equipo Limitada GarantíaMantenimiento 7 Sección Ajustes 6 SecciónEspecificaciones 3 Sección Operación DE Instrucciones 4 SecciónSeguridad DE Información 2 Sección General Información 1 Sección61V-SMT 72VS-SMTSS-31EFI-STT SS-31EFI-STT61VOperador DEL Manual

STT-31EFI-SS specifications

Scag Power Equipment is renowned for producing high-quality commercial mowing equipment, and the STT-31EFI-SS stand-on mower is no exception. Designed with professional landscapers in mind, the STT-31EFI-SS offers a perfect blend of power, efficiency, and maneuverability.

One of the standout features of the STT-31EFI-SS is its 31 hp EFI (Electronic Fuel Injection) engine. This powerhouse engine not only delivers impressive power but also enhances fuel efficiency. The EFI technology ensures that the engine operates at optimal performance by automatically adjusting the air-to-fuel ratio under varying conditions. This results in smoother starts, improved throttle response, and reduced emissions, making the mower both environmentally friendly and cost-effective in the long run.

The STT-31EFI-SS features a durable construction built to withstand the rigors of commercial use. Its robust steel frame and heavy-duty components are designed for maximum longevity. Moreover, the mower is equipped with Scag's cutting-edge Hydro-Gear ZT-3400 transmission, which offers exceptional speed and agility. This transmission allows operators to navigate tight spaces with ease and provides a top speed of up to 10.5 mph, making it ideal for large properties or demanding mowing tasks.

Operator comfort is another key aspect of the STT-31EFI-SS. The stand-on design promotes better visibility and quick maneuverability, enabling operators to navigate obstacles with confidence. The padded operator platform and adjustable controls ensure a comfortable experience, even during extended use. Additionally, the mower’s low center of gravity enhances stability on slopes and uneven terrain.

One of the most notable characteristics of the STT-31EFI-SS is its advanced cutting deck. The mower features a 48", 52", or 61" Velocity Plus cutting deck, which is known for delivering a superior cut and impressive grass dispersal. The deck is engineered for optimal airflow, enabling precision mowing while preventing clumping. This technology ensures that grass clippings are evenly distributed, resulting in a healthier lawn appearance.

In conclusion, the Scag STT-31EFI-SS stand-on mower integrates powerful performance, innovative engineering, and comfort. Featuring a reliable EFI engine, robust construction, and exceptional maneuverability, this mower stands out as an excellent choice for professional landscapers seeking efficiency and reliability in their equipment.
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