Scag Power Equipment STT61V-25CH-LP Throttle Control and Choke Adjustments, Tracking Adjustment

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Section 6

R

6.Actuate the steering control levers forward and reverse several times and return them to the neutral position.

7.Check that the drive wheels remained in neutral and readjust if necessary.

8.Check that the steering control levers hit the stop before the pumps reach full stroke. Adjust as needed.

Tracking Adjustment

caution

Stop the engine and remove the key from the ignition before making any adjustments. Wait for all moving parts to come to a complete stop before beginning work.

caution

The engine and drive unit can get hot during operation causing burn injuries. Allow engine and drive components to cool before making any adjustments.

- NOTE -

Before proceeding with this adjustment, be sure that the caster wheels turn plus pivot freely and that the tire pressure in the drive wheels is correct. If the tire pressure is not correct, the machine will pull to the side with the lower pressure.

1.If at full speed the mower pulls right, it is an indication that the left wheel is turning faster than the right wheel. To adjust this condition, proceed as follows:

A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the LH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the LH pump less, slowing down the LH wheel. (See Figure 6-4, page 24)

- NOTE -

If after making the adjustment as outlined in step 1A, the machine creeps forward or backward, the neutral adjustment must be made as described on page 24.

2.If at full speed the mower pulls left, it is an indication that the right wheel is turning faster than the left wheel. To adjust this condition, proceed as follows:

A. Stop the machine and place the steering control levers in the neutral position. Loosen the lock nuts securing the ball joints at each end of the RH steering control rod. Rotate the control rod to lengthen the rod and tighten the lock nuts. This will cause the control rod to stroke the RH pump less, slowing down the RH wheel. (See Figure 6-3, page 24)

- NOTE -

If after making the adjustment as outlined in step 2A, the machine creeps forward or backward, the neutral adjustment must be made as described on page 24.

6.3Throttle Control and Choke Adjustments

These adjustments must be performed by your Scag dealer to ensure proper and efficient running of the engine. Should either need adjustment, contact your authorized Scag service center.

6.4 BELT ADJUSTMENT

WARNING

Before removing any guards, shut the engine off and remove the ignition key.

All drive belts and cutter deck belts are spring loaded and self-tensioning.The springs should be checked periodically for proper alignment and wear.

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Contents OPERATOR’S Manual STT61V-25CH-LP Remember Your Mower is only AS Safe AS the OperatorTable of Contents Inside Back Cover Troubleshooting Cutting Conditions AdjustmentsIntroduction General InformationDirection Reference Servicing The Engine And Drive Train ComponentsSymbol Description SymbolsBefore Operation Considerations Safety InformationSignal Words Operation Considerations Know the function of all controls and how to stop quicklySection Foldable Roll-Over Protection System Roll-Over Protection SystemSeat Belt Inspection SPARK Ignition System Maintenance Considerations & StorageUsing a spark arrestor Section Power Head SpecificationsEngine ElectricalCutter Deck Weights And Dimensions 52V 61VHydraulic System Productivity 52V 61VControls 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 BladesHillside Operation Rotating BladesParking The Mower After OperationRecommendations For Mowing Adjusting Cutting HeightMoving Mower With Engine Stopped Adjusting The Height Adjust Pedal Adjusting The Steering LeversTowing Optional Hitch Accessory Condition Cause Cure Troubleshooting Cutting ConditionsCut, or Rough Contour Troubleshooting Cutting Conditions ContdScalping Blades Hitting Parking Brake Adjustment AdjustmentsNeutral Adjustment Travel AdjustmentsTracking Adjustment Throttle Control and Choke AdjustmentsCutter Deck Pitch Cutter Deck LevelCutter Deck Height Cutter Deck Height AdjustmentCustom-Cut Baffle Adjustment Custom-Cut Baffle Adjustment10. Clutch Air Gap Adjustment Electric clutch adjustmentMaintenance Chart Recommended Service Intervals MaintenanceLubrication Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Changing Hydraulic Oil Checking Hydraulic Oil LevelEngine Fuel System Engine OilCleaning and/or Replacing Air Cleaner Element Engine Air CleanerBattery Jump Starting Charging the BatteryDrive Belts Cutter Blades Blade ReplacementBlade Inspection Blade SharpeningChecking Lubricant Level Cutter Deck GearboxTires Changing Lubricant Body, Deck, And UpholsteryScag Approved Attachments and Accessories Illustrated Parts ListSection Section Description 52V Cutter DeckSection 61V Cutter Deck 461863 Cutter Deck Velocity Plus Cutter Deck Controls 481764 Link, Deck Lift Sheet Metal Components 9278 STT ROLL-OVER Protection System STT ROLL-OVER Protection System STT Suspension Seat Section Deck Drive Components Bolt, Hex Head 3/8-16 x Engine and Attaching Parts Kohler LP Available through the individual engine manufacturer Brake and Steering Components Bolt, Carriage 5/16-18 x Hydraulic System Kohler LP Base LP System Kohler Available through the individual engine manufacturer BDP-16A Hydraulic Pump Assembly BDP-16A Hydraulic Pump Assembly Electrical System Kohler LP Electrical System Kohler LP Heavy-Duty Replacement Decals and Information Plates Electrical Schematic Kohler LP Limited Warranty Commercial Equipment

STT61V-25CH-LP, STT52V-25CH-LP specifications

Scag Power Equipment has long been synonymous with durability and performance in the lawn care industry, and their STT52V-25CH-LP and STT61V-25CH-LP mowers exemplify this commitment. Both models are part of the Scag Turf Tiger II series, designed for commercial landscapers and serious homeowners who demand the best in cutting efficiency and reliability.

The STT52V-25CH-LP features a 52-inch cutting deck, while the STT61V-25CH-LP boasts a 61-inch deck, allowing users to choose according to the size of their lawn or landscape maintenance requirements. The decks are constructed from high-strength steel, ensuring longer life and resistance to wear from heavy use. The signature Velocity Plus deck design enhances airflow for superior cutting quality, resulting in cleaner cuts and better grass dispersal.

Powered by a robust 25 HP Kohler Command Pro engine, both models deliver the necessary power to tackle tough mowing jobs with ease. The engine's exceptional torque and performance ensure that even thick grass doesn't slow these machines down. Additionally, the Kohler engine is designed for improved fuel efficiency, helping operators save on fuel costs during long hours of operation.

One of the standout features of the STT52V-25CH-LP and STT61V-25CH-LP is their advanced hydrostatic transmission, providing smooth and responsive speed control. Operators can effortlessly adjust their speed and direction, making it easy to navigate tight spaces and uneven terrain. The ergonomic operator platform enhances comfort, with padded seats and adjustable armrests allowing for extended periods of mowing without fatigue.

Both models come equipped with a heavy-duty, commercial-grade transmission, capable of withstanding the rigors of daily use in demanding conditions. Additionally, they feature an intuitive control panel, allowing users to easily monitor important metrics, such as fuel levels and hour meters.

For added convenience, these mowers incorporate an easy-access maintenance design, allowing for quick inspections and routine servicing. With a focus on user-friendliness, Scag has ensured that operators can maintain their equipment with minimal downtime.

In summary, the STT52V-25CH-LP and STT61V-25CH-LP from Scag Power Equipment offer a compelling combination of power, performance, and user-friendly features. Ideal for commercial landscapers and serious gardening enthusiasts alike, these mowers stand ready to deliver exceptional results in any mowing environment.
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