Scag Power Equipment STC61V-25CV, STC48V26BS Checking Hydraulic Oil Level, Changing Hydraulic Oil

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Section 7

R

7.3 Hydraulic System

A. Checking Hydraulic Oil Level

The hydraulic oil level should be checked after the first 10 hours of operation. Thereafter, check the oil after every 200 hours of machine operation or monthly, whichever occurs first.

- IMPORTANT -

If the oil level is consistently low, check for leaks and correct immediately.

1.Wipe dirt and contaminants from around the reservoir cap. Remove the cap from the hydraulic oil reservoir.

2.Visually check the level of hydraulic oil. Hydraulic oil must be at least 3" inches from top of the filler neck. If the level cannot be determined visually, use a clean tape measure to check the level. If the fluid is low, add 20W50 motor oil. DO NOT overfill; (overfilling the oil reservoir may cause oil seepage around the cap area).

3.Clean the fill cap and install it onto the reservoir.

- IMPORTANT -

The hydraulic oil should be changed if you notice the presence of water or a rancid odor to the hydraulic oil.

1.Park the mower on a level surface and stop the engine.

2.Place a suitable container under the hydraulic oil filter. Tilt the seat forward. Remove the fill cap from the reservoir and the drain plug from the bottom of the drain tee fitting on the front side of the filter base. See Figure 7-3. Allow the fluid to drain into the container and properly discard it.

STC2001HODP

HYDRAULIC OIL

DRAIN PLUG

HYDRAULIC OIL FILTER

HYDRAULIC OIL

RESERVOIR

STC2002HOR

Figure 7-2. Hydraulic Oil Reservoir

B. Changing Hydraulic Oil

The hydraulic oil should be changed after every 500 hours or annually, whichever occurs first. The oil should also be changed if the color of the fluid has become black or milky. A black color and/or a rancid odor usually indicates possible overheating of the oil, and a milky color usually indicates water in the hydraulic oil.

Figure 7-3. Hydraulic Oil Filter and Drain Plug

3.Re-install the drain plug into the tee fitting and be sure it is tight.

- NOTE -

Before refilling the hydraulic oil reservoir the hydraulic oil filter should be changed as outlined in Procedure C "Changing Hydraulic Oil Filter Element" on page 32.

4.Fill the reservoir to 3-1/4" inches from the top of the filler neck with 20W50 motor oil.

5.Replace the reservoir fill cap. Start the engine and drive forward and backward for two minutes. Check the oil level in the reservoir. If necessary, add oil to the reservoir.

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Table of Contents Inside Back Cover Limited Warranty Commercial EquipmentServicing The Engine and Drive Train Components General InformationIntroduction Direction ReferenceSymbol Description SymbolsBefore Operation considerations Safety InformationSignal Words Operation Considerations Section Foldable Roll-over protection system if equipped Roll-over protection systemFoldable Roll-Over Protection System Maintenance Considerations & storage Install Belt COvER Before Safety and Instructional DecalsTractor SpecificationsEngine ElectricalProductivity Weights and Dimensions 48V 52V 61VCutter Deck Hydraulic SystemControls and Instrument Identification Operating InstructionsInitial RUN-IN Procedures Safety Interlock SystemForward Travel Starting the EngineGround Travel and Steering Reverse Travel Engaging the Deck Drive Cutter BladesRemoving Clogged Material Hillside OperationParking the Mower After OperationRecommendations for Mowing Adjusting Cutting HeightMoving Mower with Engine Stopped Towing optional hitch accessory Adjusting the Steering LeversCondition Cause Cure Troubleshooting Cutting ConditionsTroubleshooting Cutting Conditions Contd Scalping Blades Hitting Travel Adjustments AdjustmentsParking Brake Adjustment Tracking Adjustment Neutral AdjustmentBelt Alignment Throttle Control and Choke AdjustmentsBelt Adjustment Cutter Deck AdjustmentsCutter Deck Pitch Cutter Deck Height Adjustment ROD Lock NUTPosition Custom-Cut Baffle Adjustment cURRENT pRODUCTION Custom-Cut Baffle AdjustmentPosition Custom-Cut Baffle Adjustment eARLY mODELS Position Custom-Cut Baffle Adjustment Maintenance Chart Recommended Service Intervals MaintenanceLubrication Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Changing Hydraulic Oil Checking Hydraulic Oil LevelEngine Fuel System Engine OilReplacing In-Line Fuel Filter Elements Engine Air CleanerCleaning and/or Replacing Air Cleaner Element Jump Starting BatteryCharging the Battery Blade Inspection Blade ReplacementDrive Belts Cutter BladesBODY, DECK, and Upholstery TiresScag Approved Attachments and Accessories Illustrated Parts List48V & 52V Cutter Decks Description 61V Cutter Deck 424367 Dust Shield 483210 Idler Pulley, 5 Dia Cutter Deck Controls Cutter Deck Controls Sheet Metal Components 482619 Tire, 13 x 6.5-6 Smooth 483736 STC Fixed ROLL-OVER Protection System STC Fixed ROLL-OVER Protection System STC Foldable ROLL-OVER Protection System STC Foldable ROLL-OVER Protection System Drive System Components 04019-04 Nut, Serr. Flange 3/8-16 04001-136 Engine & Attaching Parts Engine and Attaching Parts Steering Components Damper orange colored print Damper blue colored print Brake Components Brake Components 33 47 Fuel and Hydraulic System Electrical System Battery, 330CCA Not Available Through Scag BDP-10A Hydraulic Pump Assembly Housing Kit Operating Machine Install Belt COvER Before482166R STC 2008 RDP2 Electrical Schematic Limited Warranty Commercial Equipment Garantía Limitada Equipo Comercial Llantas PrecauciónCuchillas las de Afilado 8-7 Figura Cuchilla la de Reemplazo 9-7 FiguraPara apropiada protección la lleve Siempre Cuchilla la de Reemplazo .CRajada o rota cuchilla una suelde nunca Transmisión DE CorreasCorte DE Cuchillas Seguridad garantizar paraDel elemento del reemplazo y/o Limpieza .A BateríaGases producen ácido-plomo baterías Las Advertencia DEL Combustible DE Sistema MotorAceite de filtro del elemento del Cambio .C Cárter del aceite de Cambio .BCárter del aceite de nivel del Verificación .A Hidráulico aceite de nivel del Verificación .A Hidráulico SistemaHidráulico aceite de Cambio .B Lubricación DE Grasa DE Conexiones Grasa DE Conexión DE Lubricación DE Tabla Lubricación Figura LA VEARecomendados Servicio DE Intervalos Mantenimiento DE Tabla MantenimientoSección De personalizado corte de deflector del Ajuste PosicionesCorte de plataforma la de Altura DE Plataforma LA DE Ajustes Corte de plataforma la de InclinaciónCorte de plataforma la de Nivel CorteAlineación de Ajuste Correa LA DE AlineaciónCorrea LA DE Ajuste Ajustes Estrangulación Aceleración DE ControlDirección De control de varilla la de Ajuste .3-6 Figura Neutral AjusteDesplazamiento DE Ajustes Freno de Ajuste .1-6 Figura AjustesDE Freno DEL Ajuste Solución Causa Condición Solución Causa Condición Continuación Fallas DE Solución La en cortar sin césped Corte de trayectoriasEntre cortar sin césped De Franjas VetasOpcional Enganche de accesorio Remolque Plataforma AdvertenciaCortacésped DEL Estacionamiento Detenido Motor EL CON Cortacésped DEL DesplazamientoAtascado Material DEL Retiro Corte DE Cuchillas Plataforma DE Transmisión LA DE Conexión Cuesta UNA EN OperaciónDirección Y Terreno EL EN Desplazamiento PrecauciónSeguridad DE Bloqueo DE Sistema Motor DEL ArranqueFigura combustible de cambio de Válvula Controles DE Identificación InstrumentosCorte DE Plataforma ProductividadTractor Eléctrico SistemaSeguridad DE Y Instructivas Calcomanías Cuchillas las suelde NUNCAni enderece.cuchillas DE Consideraciones Almacenamiento Y MantenimientoVuelco contra protección de plegable Sistema 1-2 Figura Rops del Bisagra 2-2 FiguraVuelco Contra Protección DE Sistema Operación DE Consideraciones AdvertenciaAdvertencia Introducción Operación LA a Previas ConsideracionesSeñalización DE Palabras Descripción Símbolo ISO Símbolos Scag POR Aprobados Dispositivos USE Sólo Instrucciones DE ReferenciaAjustes 6 Sección Repuesto de Piezas 8 SecciónMantenimiento 7 Sección General Información 1 Sección Operación De Instrucciones 4 SecciónEspecificaciones 3 Sección Seguridad de Información 2 SecciónAdvertencia Operadordel Manual

STC61V-25CV-FR, STC48V-26BS, STC48V26BS, STC61V-25CV, STC61V-23BV specifications

Scag Power Equipment has established itself as a leader in the outdoor power equipment industry, and its line of mowers, particularly the STC series, exemplifies premium engineering and cutting-edge technology. Among the standout models are the STC52V-23BV, STC52V-25CV-FR, STC52V-25CV, STC61V-23BV, and STC61V-25CV. Each model is designed to meet the diverse demands of commercial and residential landscaping, providing efficiency, performance, and durability.

The STC52V-23BV and the STC52V-25CV-FR are both equipped with powerful V-twin engines that deliver dependable performance under tough conditions. These engines are designed to provide high torque, enabling users to tackle tougher mowing tasks without sacrificing speed or efficiency. With a cutting deck width of 52 inches, the STC52V models offer excellent maneuverability while providing ample coverage for large lawns.

On the other hand, the STC61V-23BV and STC61V-25CV models feature an impressive 61-inch cutting deck, making them ideal for larger properties. The wider deck allows for more efficient mowing with fewer passes, ultimately saving time and reducing operator fatigue. Both models also boast V-twin engines, ensuring robust performance that can handle dense grass and uneven terrain with ease.

One of the significant characteristics of the STC series is Scag's innovative Velocity Plus cutting deck technology. This unique design enhances airflow beneath the deck, resulting in superior grass cutting and improved discharge. The deck's aerodynamic shape not only ensures a clean cut but also allows for better grass collection in conjunction with optional bagging systems.

Additionally, all STC models are built with operator comfort in mind. Ergonomically designed controls, spacious seating, and intuitive instrument panels enable operators to work efficiently without discomfort during extended periods. These mowers also come standard with heavy-duty frames and high-quality components that offer durability and long-lasting performance, even in the most demanding conditions.

Another noteworthy feature across the STC lineup is the ease of maintenance. Scag Power Equipment has designed these mowers with accessible components, making it easier for users to perform routine maintenance tasks. This focus on practicality ensures that owners can keep their equipment in optimum condition with minimal effort.

In conclusion, the Scag Power Equipment STC52V-23BV, STC52V-25CV-FR, STC52V-25CV, STC61V-23BV, and STC61V-25CV represent the pinnacle of performance, comfort, and durability in the commercial mower sector. With powerful engines, advanced cutting technology, and a focus on user experience, these mowers continue to set the standard for excellence in outdoor power equipment.
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