Scag Power Equipment STT61V-25CH-LP Cutter Blades, Blade Inspection, Blade Sharpening

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Section 7

R

7.9 Cutter Blades

A. Blade Inspection

1.Remove the ignition key before servicing the blades.

2.Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position to prevent the cutter deck from falling.

WARNING

Always wear proper hand and eye protection when working with cutter blades.

3.Check the cutter blades for straightness. If the cutter blades appear bent, they will need to be replaced.

WARNING

Do not attempt to straighten a bent blade, and never weld a broken or cracked blade. Always replace it with a new blade to assure safety.

4.If a blade cutting edge is dull or nicked, it should be sharpened. Remove the blades for sharpening. See "Blade Replacement."

- NOTE -

Keep the blades sharp. Cutting with dull blades not only yields a poor mowing job, but slows the cutting speed of the mower and causes extra wear on the engine and the blade drive by pulling hard.

B. Blade Sharpening

- NOTE -

If possible, use a file to sharpen the blade. Using a wheel grinder may burn the blade.

- NOTE -

DO NOT sharpen the blades beyond 1/3 of the width of the blade. See Figure 7-6.

1.Sharpen the cutting edge at the same bevel as the original. See Figure 7-7. Sharpen only the top of the cutting edge to maintain sharpness.

Angle Blade Back

Do Not Cut In

 

X Must NOT Exceed

30

1/3 Blade Width

SGB033

 

Figure 7-6. Blade Sharpening

2.Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades.

C. Blade Replacement

WARNING

Always wear proper hand and eye protection when working with cutter blades.

1.Remove the ignition key before replacing the blades.

2.Raise the mower deck to the highest position. Place the lanyard pin in the highest cutting height position to prevent the cutter deck from falling.

3.Secure the cutter blades to prevent them from rotating, (use the optional Blade Buddy tool P/N 9212, to assist in securing the cutter blades), remove the nut from the blade attaching bolt. Remove the cutter blade, bolt and spacer from the spindle shaft. See Figure 7-7.

- NOTE -

The front of the machine will have to be raised slightly to remove the blade bolt from the cutter spindle.

4.To install the new cutter blade, put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade.

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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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