Scag Power Equipment STT manual Engine, Electrical, Tractor

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Section 3

3.1 ENGINE

SPECIFICATIONS

 

General Type

Heavy Duty Industrial/Commercial Gasoline

Brand

Kohler, 22HP (Spec. #PS-76510) 25HP (Spec. #PS-68579)

 

Kawasaki, 22HP (Spec. # FD661D-AS0201)

Model

Kohler Command, Kawasaki FD661D

Horsepower

22 HP at 3600 RPM (Model STT52&52b-22CH, STT61&61B-22CH)

 

25 HP at 3600 RPM (Model STT52&52B-25CH, STT61&61B-25CH)

 

22 HP at 3600 RPM (Model STT52&52B-22KA, STT61&61B-22KA)

Type

4 Cycle Gasoline, Twin Cylinder, Horizontal Shaft

Displacement

22HP Kohler 674 cc., 25HP Kohler 725cc., 22HP Kawasaki 617cc

Cylinders

2 with Cast Iron Sleeves

Governor

Mechanical Type with Variable Speed Control Set At 3600 RPM

Idle Speed

1400 RPM

Kohler Fuel Pump Group

Mechanical Type Fuel Pump with In-Line Fuel Filter, Fixed Jet

 

Carburetor with Smart-Choke™ and Fuel Shutdown Solenoid

Kawasaki Fuel Pump Group

Electric Fuel Pump with In-Line Fuel Filter,Fixed Jet Downdraft

 

Carburetor.

Fuel

Non-Leaded Gasoline with a Minimum Octane Rating of 87

Oil Pump Group

Positive Displacement Gerotor™ Oil Pump with Remote Oil

 

Filter

Starter

Electric Starting with Solenoid Shift Starter

Belts:

Kevlar cord. Self-adjusting, Self-tightening

Deck Drive Belt

Scag Part Number - 481460

Pump Drive Belt

Scag Part Number - 481461

Kawasaki Fan Belt

Part Number - Mitsubishi 59011-2056 (N/A Through Scag)

3.2 ELECTRICAL

 

Battery

12 Volt

Charging System

Alternator

Charging Output

12 Volt, 15 Amp

System Polarity

Negative Ground

Starter

12 Volt Electric Ring Gear Type, Key and Solenoid Operated

Interlock Switches

Seat, Neutral Control, Mower Engagement (BBC), Parking Brake

Instrument Panel

Ammeter, Hourmeter, Key Switch, Throttle Lever, Manual Choke,

 

BBC Switch, Fuses and Safety Start module, Temp. gauge (KA)

Fuses

Two (2) 20 Amp

3.3 TRACTOR

 

Drive System

Hydraulic Drive with Two Variable Displacement Pumps and Two

 

Cast-iron High Torque Motors

Hydrostatic Pumps

Two Hydro-Gear™ BDP 10L Pumps with Dump Valves for

 

movement without running the engine

Drive Wheel Motors

Two Ross Model MB 15 cu. inch Cast-iron High Torque Motors

Steering/Travel Control

Twin Lever Fingertip Steering Control with Individual Control to

 

Each Wheel with Gas Spring Dampers

Parking Brake

Lever Actuated Linkage to Brakes on Both Drive Wheel Axles

Wheels:

 

(2) Front Caster

13 X 5.00 Four-Ply

(2) Drive

23 X 10.5 X 12 Four-Ply Pneumatic Tubeless, Radius Edge, 52"

...................................................................................................

24X12.0X12.0 Four-Ply Pneumatic Tubeless, Radius Edge, 61"

Fuel Tank

10-Gallon Seamless Polyethylene Tank with Fuel Gauge Fill Cap

Tire Pressure:

 

Front Caster

25 PSI

Drive

12 PSI

Seat

Padded, Thick Cushion with Extra Spring Support

 

6

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Servicing the Engine and Drive Train Components IntroductionDirection Reference Signal Words Before Operation ConsiderationsBefore Operation Considerations Contd Operation ConsiderationsMaintenance Considerations Operation Considerations ContdRotating Blades and Belts Safety and Instructional Decals Spinning BladeStart / Drive Procedure Tractor EngineElectrical Weights and Dimensions Model Tractor ContdCutter Deck Hydraulic SystemSection Operating Instructions Controls and Instrument IdentificationSafety Interlock System Forward Travel Ground Travel and SteeringStarting the Engine Reverse Travel Engaging the Deck Drive Cutter BladesAfter Operation Hillside OperationParking the Mower Rotating Blades Removing Clogged MaterialMoving Mower with Engine Stopped Recommendations for MowingAdjusting Cutting Height Deck Release LeverTroubleshooting Cutting Conditions Condition Cause CureTroubleshooting Contd Condition Cause Cure Scalloped Cut, or Rough ContourTroubleshooting Contd GroundParking Brake Adjustment Travel AdjustmentsNeutral Adjustment RH Steering Control Rod AdjustmentTracking Adjustment Throttle Control and Choke AdjustmentsBelt Adjustment Belt AlignmentCutter Deck Pitch Cutter Deck AdjustmentsCutter Deck Level Cutter Deck Height Adjustment Cutter Deck HeightMaintenance Maintenance Chart Recommended Service IntervalsMaintenance Chart Recommended Service Intervals Contd Lubrication Grease Fitting Lubrication Chart see FigureLubrication Fitting Points Checking Hydraulic Oil Level Changing Hydraulic OilChanging Hydraulic Oil Filter Element Engine OILChecking Engine Crankcase Oil Level Changing Engine Crankcase OilEngine AIR Cleaner Engine Fuel SystemCharging the Battery BatteryChecking Electrolyte Level and Cleaning Battery Jump Starting Drive BeltsBlade Sharpening Cutter BladesBlade Replacement TiresCutter Deck Gearbox Checking Lubricant LevelKawasaki Cooling System Checking Coolant LevelBODY, DECK, and Upholstery Cleaning the Radiator Debris ScreenChecking The Fan Belt Tension Section 52 & 61 Cutter Decks 52& 61 Cutter Decks Ref. Part DescriptionCutter Deck CONTROLS, 52 & 61 Decks Cutter Deck CONTROLS, 52 & 61 Decks Part DescriptionSheet Metal Components Sheet Metal Components Deck Drive Components Deck Drive Components Engine and Attaching Parts Kohler Engine and Attaching Parts Kohler Engine and Attaching Parts Kawasaki Engine and Attaching Parts Kawasaki Brake and Steering Components Brake and Steering Components Fuel and Hydraulic System Fuel and Hydraulic System Electrical System Kohler Electrical System Kohler Electrical System Kawasaki Electrical System Kawasaki Hydraulic Pump Assembly Housing Kit Includes Housing, Journal Bearing Replacement Decals and Information Plates Operating Machine2018 Electrical Schematic Kohler Electrical Schematic Kawasaki Limited WARRANTY-COMMERCIAL Equipment 1998

STT specifications

Scag Power Equipment is renowned for producing high-quality outdoor power equipment, and among its impressive lineup is the Scag STT series of zero-turn mowers. These machines are designed for professionals who require efficient, durable, and powerful mowing performance. The STT offers several features that set it apart from the competition, making it a fantastic choice for landscaping and lawn care businesses.

One of the standout features of the Scag STT is its powerful engine options. The mower is available with various engine choices, including the reliable Kawasaki and Kohler engines, which provide ample power to tackle even the toughest mowing tasks. With horsepower ratings reaching up to 25 HP, the STT ensures that operators can efficiently handle large properties and dense grass without any strain.

The STT's innovative design includes a robust steel frame and deck that provide exceptional durability and longevity. The mower's heavy-duty construction ensures it can withstand the rigors of daily professional use. The commercial-grade cutting deck is available in sizes ranging from 48 to 61 inches, allowing for versatility based on the user's specific needs. This deck features Scag's patented design, which enhances airflow for superior cutting performance and an immaculate finish.

Another key characteristic of the STT is its patented Velociti Drive System. This technology allows for faster ground speeds while maintaining optimum control, ensuring that operators can cover large areas quickly without sacrificing mowing quality. Additionally, the STT is equipped with a hydrostatic drive system that provides smooth acceleration and efficient operation, making it easy to navigate around obstacles and tight spaces.

Operators will also appreciate the comfort features incorporated into the STT design. The mower comes with a premium high-back seat, complete with adjustable armrests, which contributes to reduced fatigue during long mowing sessions. The ergonomic control layout, including easy-to-use controls and a spacious operator platform, enhances comfort and usability, making it ideal for professionals who spend hours mowing.

Maintenance is straightforward with the Scag STT, thanks to features like easy-access maintenance components and a simplified grease system. This design minimizes downtime and allows for quick servicing, enabling operators to spend more time on the job.

In summary, the Scag Power Equipment STT combines robust engineering, powerful engine options, and innovative technologies to deliver outstanding mowing performance. Its durability, comfort features, and ease of maintenance make it an excellent choice for landscape professionals looking for a reliable and efficient zero-turn mower for their business.