Scag Power Equipment STT manual Cutter Deck Adjustments, Cutter Deck Level, Cutter Deck Pitch

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Section 6

6.6 CUTTER DECK ADJUSTMENTS

Cutter deck level, pitch and height are set at the factory. However, if these adjustments should ever need to be made, the following procedures will aid in obtaining the proper cutter deck adjustment.

-NOTE-

Before proceeding with the cutter deck adjustments, be sure that all tires are properly inflated.

Cutter Deck Level

The cutter deck should be level from side-to-side for proper cutting performance. To check for level, be sure that the mower is on a flat, level surface, the tires are properly inflated and the cutter deck is set at the most common cutting height that you will use. On the RH side of the machine, check the distance from the bottom of the cutter deck to the floor. Next check the distance from the bottom of the cutter deck to the floor on the LH side of the machine. Both measurements should be the same. If the two measurements are different, the cutter deck level must be adjusted as follows:

1.On the front LH side of the cutter deck locate the cutter deck adjusting bolt. (See Figure 6.5)

JAM NUT

ADJUST HERE

CUTTER DECK

ADJUSTING BOLT

390S0174

Figure 6-5. Cutter Deck Adjustment

3.Tighten the serrated hex nut to secure the cutter deck in the proper position.

Cutter Deck Pitch

The pitch of the cutter deck should be 1/4" down toward the front of the cutter deck for proper cutting performance. To check for proper deck pitch, be sure that the mower is on a flat, level surface and the tires are properly inflated.

Check the distance from the bottom of the cutter deck to the floor at the rear RH side of the cutter deck directly behind the cutter deck hanging chains. Next check the distance from the bottom of the cutter deck to the floor at the front RH side of the cutter deck directly in front of the cutter deck hanging chains. The measurement at the front of the cutter deck should be 1/4" lower than the measurement at the rear of the deck. Make these measurements at the LH side of the cutter deck also. If the measurement at the front of the deck is not 1/4" lower, the cutter deck pitch must be adjusted as follows:

1.Loosen the jam nuts on both adjusting rods. (See Figure 6.5)

2.Using a wrench on the spring compression nut (See Figure 6.5) turn the adjusting rods until the 1/4" forward pitch is obtained on both the RH and the LH side of the cutter deck. Tighten both jam nuts.

-NOTE-

To prevent the cutter deck from teetering, all four cutter deck hanging chains must have tension on them. If all four chains do not have tension on them and the deck teeters, you must readjust the cutter deck as outlined in the procedures above.

2.Loosen the serrated flange hex nut and move the bolt up or down in the slot to adjust the cutter deck until the distance from the bottom of the cutter deck to the floor is the same as the measurement on the RH side of the machine.

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Introduction Direction ReferenceServicing the Engine and Drive Train Components Signal Words Before Operation ConsiderationsBefore Operation Considerations Contd Operation ConsiderationsMaintenance Considerations Operation Considerations ContdSafety and Instructional Decals Spinning Blade Start / Drive ProcedureRotating Blades and Belts Engine ElectricalTractor Weights and Dimensions Model Tractor ContdCutter Deck Hydraulic SystemSection Operating Instructions Controls and Instrument IdentificationSafety Interlock System Ground Travel and Steering Starting the EngineForward Travel Reverse Travel Engaging the Deck Drive Cutter BladesHillside Operation Parking the MowerAfter Operation 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 Adjustments Cutter Deck LevelCutter Deck Pitch 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 SystemBattery Checking Electrolyte Level and Cleaning BatteryCharging the Battery Jump Starting Drive BeltsBlade Sharpening Cutter BladesBlade Replacement TiresCutter Deck Gearbox Checking Lubricant LevelKawasaki Cooling System Checking Coolant LevelCleaning the Radiator Debris Screen Checking The Fan Belt TensionBODY, DECK, and Upholstery 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.
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