Scag Power Equipment STT manual Checking Hydraulic Oil Level, Changing Hydraulic Oil

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Section 7

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-

Iftheoillevelisconsistentlylow,checkfor 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 3-1/4" 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).

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

HYDRAULIC OIL

RESERVOIR

STT99HOR

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.

-NOTE-

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 reservoir. Remove the fill cap from the reservoir. Remove the drain plug from the bottom of the reservoir. (See Figure 7-2). Allow the fluid to drain into the container and properly discard it.

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

-NOTE-

Before refilling the hydraulic oil reservoir the hydraulic oil filter should be chaged as outlined in section C on the next page.

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 Servicing the Engine and Drive Train Components IntroductionDirection Reference Before Operation Considerations Signal WordsOperation Considerations Before Operation Considerations ContdOperation Considerations Contd Maintenance ConsiderationsRotating Blades and Belts Safety and Instructional Decals Spinning BladeStart / Drive Procedure Tractor EngineElectrical Tractor Contd Weights and Dimensions ModelCutter Deck Hydraulic SystemSection Controls and Instrument Identification Operating InstructionsSafety Interlock System Forward Travel Ground Travel and SteeringStarting the Engine Engaging the Deck Drive Cutter Blades Reverse TravelAfter Operation Hillside OperationParking the Mower Removing Clogged Material Rotating BladesMoving Mower with Engine Stopped Recommendations for MowingDeck Release Lever Adjusting Cutting HeightCondition Cause Cure Troubleshooting Cutting ConditionsScalloped Cut, or Rough Contour Troubleshooting Contd Condition Cause CureGround Troubleshooting ContdTravel Adjustments Parking Brake AdjustmentRH Steering Control Rod Adjustment Neutral AdjustmentThrottle Control and Choke Adjustments Tracking AdjustmentBelt Adjustment Belt AlignmentCutter Deck Pitch Cutter Deck AdjustmentsCutter Deck Level Cutter Deck Height Cutter Deck Height AdjustmentMaintenance Chart Recommended Service Intervals MaintenanceLubrication Grease Fitting Lubrication Chart see Figure Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Changing Hydraulic Oil Checking Hydraulic Oil LevelEngine OIL Changing Hydraulic Oil Filter ElementChecking Engine Crankcase Oil Level Changing Engine Crankcase OilEngine Fuel System Engine AIR CleanerCharging the Battery BatteryChecking Electrolyte Level and Cleaning Battery Drive Belts Jump StartingBlade Sharpening Cutter BladesTires Blade ReplacementChecking Lubricant Level Cutter Deck GearboxKawasaki Cooling System Checking Coolant LevelBODY, DECK, and Upholstery Cleaning the Radiator Debris ScreenChecking The Fan Belt Tension Section 52 & 61 Cutter Decks Ref. Part Description 52& 61 Cutter DecksCutter Deck CONTROLS, 52 & 61 Decks Part Description Cutter Deck CONTROLS, 52 & 61 DecksSheet 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 Operating Machine Replacement Decals and Information Plates2018 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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