Scag Power Equipment STT-31BSD manual Changing Lubricant, Cooling System, Checking Coolant Level

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Section 7

2.Clean and remove the check plug from the side of the gearbox (See Figure 7-12). Visually check that the lubricant level is up to the bottom edge of the check plug hole. If lubricant is low, add SAE 80/90 lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole. Install the check plug and tighten securely.

2.Visually check the coolant level. The coolant level should be up to the bottom of the filler neck as shown in figure 7-13. Add a mixture of coolant and soft water as needed.

-NOTE-

Refer to the coolant manuafacturer's instruc- tions for the proper coolant mixture ratio.

B. Changing Lubricant

The lubricant in the cutter deck gearbox should be changed every 500 hours of operation or yearly, whichever occurs first.

1.Place a suitable container beneath the cutter deck gearbox and locate the gearbox drain plug.

2.Remove the drain plug and drain the lubricant into the container and properly discard it.

3.Re-install the drain plug and add EP-80/90 lubricant through the check plug hole in the gearbox until it is level with the bottom of the check plug hole. Install the check plug and tighten securely.

7.12 COOLING SYSTEM

WARNING:

To avoid burns, always allow the engine to cool before removing the radiator cap.

A. Checking Coolant Level

The coolant level should be checked before each day of operation.

1.Remove the radiator cap by turning it slowly counterclockwise to the first stop and allow any pressure to be released. Push down on the cap and turn counterclockwise to remove.

Fill to Bottom of

Filler Neck

030467-13

Figure 7-13 Coolant Level in Radiator

3.Replace the radiator cap. Push down on the cap and turn clockwise until it stops.

- NOT E -

The cooling system should be flushed and the coolant replaced every 500 hours of op- eration or annually. See your Scag dealer for proper coolant replacement.

B. Cleaning the Radiator Debris Screen

After each day of operation, remove and clean the radiator debris screen.

CAUTION:

To avoid personal injury, always wear safety glasses when using compressed air.

1.Pull the debris screen up to remove.

2.Clean the debris screen with compressed air or a water hose.

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Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Table of Contents Table of Contents Contd Introduction General InformationDirection Reference Servicing the Engine and Drive Train ComponentsISO Symbols CE Mark Fast Slow Before Operation Considerations Safety InformationSignal Words Operation Considerations Before Operation Considerations ContdRoll Over Protection System Operation Considerations ContdSeat Belt Inspection STT-BSD With Roll Over Protection System Maintenance Considerations & StorageSafety and Instructional Decals Drive System EngineEngine Deck Additional Specifications SpecificationsApproximate Dimensions ProductivityControls and Instrument Identification Operating InstructionsDump Valve Control Safety Interlock SystemForward Travel Starting the EngineGround Travel and Steering Engaging the Deck Drive Cutter Blades Reverse TravelAfter Operation Hillside OperationParking the Mower Recommendations for Mowing Removing Clogged MaterialMoving Mower with Engine Stopped Deck Release Lever Adjusting Cutting HeightCondition Cause Cure Troubleshooting Cutting ConditionsScalloped Cut, or Rough Contour Troubleshooting Contd Condition Cause CureGround Troubleshooting ContdTravel Adjustments AdjustmentsParking Brake Adjustment RH Steering Control Rod Adjustment Neutral AdjustmentBelt Adjustment Tracking AdjustmentThrottle Control Belt AlignmentCutter Deck Pitch Cutter Deck AdjustmentsCutter Deck Level Cutter Deck Height Custom-Cut Baffle AdjustmentCustom-Cut Baffle Maintenance Chart Recommended Service Intervals MaintenanceLubrication Grease Fitting Lubrication Chart see Figure Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Changing Hydraulic Oil Hydraulic SystemChecking Hydraulic Oil Level Changing Hydraulic Oil Filter Element Engine OILChecking Engine Crankcase Oil Level Changing Engine Crankcase OilEngine Fuel System Engine AIR CleanerBattery Jump Starting Charging the BatteryDrive Belts Blade ReplacementCutter Blades Blade InspectionChecking Lubricant Level TiresCutter Deck Gearbox Changing Lubricant Cleaning the Radiator Debris ScreenCooling System Checking Coolant LevelBODY, DECK, and Upholstery Checking The Fan Belt TensionPage 61A, 72A Cutter Decks Ref. Part Description Cutter Deck Controls Part Description Sheet Metal Components Wheel Assy Inc.items 20, 42, 43, 54 STT Roll Over Protection System Ref. Part No. No. Description Deck Drive Components Ref. Part Description Radiator & Engine Brackets Radiator & Engine Brackets Brake and Steering Components Part Description Fuel and Hydraulic System Ref. Part Description Electrical System 35 483072 Hour Meter HYDRAULICHYDRAULICPUMPPUMPASSEMBLYASSEMBLY- BDP-21L Hydraulic Pump Assembly BDP-21L Wire HARNESS, STT 31BSD Part Number Heavy-Duty 482367 48825 481937 48314 Limited Warranty Commercial Equipment