Scag Power Equipment STT-31EFI-SS operating instructions Section

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Section 2

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3.To prevent tipping or loss of control, start and stop smoothly, avoid unnecessary turns and travel at reduced speed.

4.When using any attachment, never direct the discharge of material toward bystanders or allow anyone near the machine while in operation.

5.Before attempting to start the engine, with the operator in the seat, disengage power to the cutter deck, place the steering control levers in the neutral position and engage the parking brake.

6.If the mower discharge ever plugs, shut off the engine, remove the ignition key, and wait for all movement to stop before removing the obstruction.

15.The machine and attachments should be stopped and inspected for damage after striking a foreign object, and damage should be repaired before restarting and operating the machine.

Caution

Do not touch the engine or the muffler while the engine is running or immediately after stopping. These areas may be hot enough to cause a burn.

WARNING

DO NOT use your hand to dislodge the clogged discharge chute. Use a stick or other device to remove clogged material after the engine has stopped running and the blades have stopped turning.

7.Be alert for holes, rocks, roots and other hidden hazards in the terrain. Keep away from any drop- offs. Beware of overhead obstructions (low limbs, etc.), underground obstacles (sprinklers, pipes, tree roots, etc.). Cautiously enter a new area. Be alert for hidden hazards.

8.Disengage power to cutter deck before backing up. Do not mow in reverse unless absolutely necessary and then only after observation of the entire area behind the mower. If you must mow in reverse, maintain a constant lookout to the rear of the machine and mow slowly.

9.DO NOT turn sharply. Use care when backing up.

10.Disengage power to cutter deck before crossing roads, walks or gravel drives.

11.Mow only in daylight or good artificial light.

12.NEVER raise the deck with the blades engaged.

13.Take all possible precautions when leaving the machine unattended, such as disengaging the mower, lowering the attachments, setting the parking brake, stopping the engine, and removing the key.

14.Disengage power to the attachments when transporting or when not in use.

DANGER

DO NOT run the engine inside a building or a confined area without proper ventilation. Exhaust fumes are hazardous and contain carbon monoxide which can cause brain injury and death.

16.Keep hands and feet away from cutter blades and moving parts. Contact can injure.

17.Transport the mower using a heavy duty trailer or truck. Insure the trailer or truck has all of the necessary lighting and markings as required by laws, codes, and ordinances. Secure a trailer with a safety chain.

18.Be cautious when loading and unloading onto trailers or trucks. Use only a full width ramp. Ramp angle should be no more than 15 degrees. Back up the ramp and drive down forward.

19.When transporting the mower, make sure the park brake is engaged, the steering control levers are in the neutral position, the engine is off with the key removed, and the wheels have been blocked.

20.Tie the mower down securely using straps, chains, cable, or ropes. Both front and rear straps must be directed down and outward from machine.

21.Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.

22.NEVER leave the machine running unattended.

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Contents OPERATOR’S Manual STT61V-31EFI-SS With a serial number E3700001 to E3799999STT-31EFI-SS Table of Contents Following Section AdjustmentsGeneral Information USE only Scag Approved Attachments and AccessoriesIntroduction Direction ReferenceSymbols Symbol DescriptionSTT 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 ElectricalWeights And Dimensions Cutter DeckHydraulic 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 MaterialAdjusting Cutting Height Moving Mower With Engine StoppedRecommendations 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 AdjustmentCustom-Cut Baffle Adjustment Position Custom-Cut Baffle Adjustment Early ModelsPosition 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 OilEngine Air Cleaner Cleaning and/or Replacing Air Cleaner ElementReplacing In-Line Fuel Filter Elements Charging the Battery BatteryBattery Electrolyte First AID Jump StartingDrive Belts Blade ReplacementCutter Blades Blade InspectionTires Cutter Deck GearboxChecking 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 NotaLa de cambios de Caja Refrigeración de SistemaCorte 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 Sistema Hidráulico aceite de nivel del Verificación .AHidráulico aceite de Filtro .3-7 Figura Conexión de puntos de Lubricación .1-7 Figura Lubricación Ciones Lubricación Ubica Lubricante Ubicación DE IntervaloHoras Recomendados servicio de Intervalos mantenimiento de Tabla MantenimientoMontaje de accesorios de Ubicación Montaje de Ranura Personalizado corte de deflector del Ajuste Posiciones 7 de 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 Inclinación Corte de plataforma la de NivelCorte de Plataforma la de nivel del Ajuste .5-6 Figura Estrangulación y aceleración De controles los de AjustesAlineación 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 ControlOperación DE Instrucciones Instrumentos e controles de IdentificaciónInstrumentos e Controles .1-4 Figura Productividad Dimensiones y PesosPotencia de Cabezal EspecificacionesEléctrico Sistema MotorSeguridad de y instructivas Calcomanías REvErSA AdELAntEChispas de supresor un Utilice Almacenamiento y mantenimientoDe Consideraciones Muerte la o graves lesiones ocasionar Mantener y inspeccionar de incumplimiento ElVuelco contra protección de plegable Sistema .1-2 Figura Vuelco contra protección de Sistema Equipado viene si vuelco contraProtección de Plegable Sistema Peligro Operación de Consideraciones Información Seguridad DEOperación la a previas Consideraciones Señalización de PalabrasSímbolos STT ModelosDescripción Símbolo General Información Instrucciones de ReferenciaScag 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.