Scag Power Equipment STT-31BSG Cutter Deck Gearbox, Checking Lubricant Level, Cooling System

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Section 7

7.11 CUTTER DECK GEARBOX

A. Checking Lubricant Level

CAUTION:

The cutter deck gearbox can reach high operating temperatures. Allow the cutter deck gearbox to cool before servicing.

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

CUTTER DECK￿

GEARBOX CHECK￿

PLUG

390S0161

Figure 7-12 Cutter Deck Gearbox

The fluid level in the cutter deck gearbox (Figure 7-12) should be checked after every 100 hours of operation or bi-weekly, whichever occurs first.

1.Lower the cutter deck to to its lowest position to gain access to the cutter deck gearbox.

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 80W90 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.

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.

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.

Fill to Bottom of￿

Filler Neck

B. Changing Lubricant

The lubricant in the cutter deck gearbox should be changed after 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.

35

030467-13

Figure 7-13 Coolant Level in Radiator

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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 Servicing the Engine and Drive Train Components General InformationIntroduction Direction ReferenceISO Symbols CE Mark Fast Slow Before Operation Considerations Safety InformationOperation Considerations Before Operation Considerations ContdOperation Considerations Contd Maintenance ConsiderationsSafety and Instructional Decals Engine Engine DeckDrive System Productivity SpecificationsAdditional Specifications Approximate DimensionsControls and Instrument Identification Operating InstructionsDump Valve Control Safety Interlock SystemStarting the Engine Ground Travel and SteeringForward Travel Engaging the Deck Drive Cutter Blades Reverse TravelHillside Operation Parking the MowerAfter Operation Removing Clogged Material Moving Mower with Engine StoppedRecommendations for Mowing Towing optional hitch accessory Adjusting Cutting HeightCondition Cause Cure Troubleshooting Cutting ConditionsScalloped Cut, or Rough Contour Troubleshooting Contd Condition Cause CureGround Troubleshooting ContdAdjustments Parking Brake AdjustmentTravel Adjustments RH Steering Control Rod Adjustment Neutral AdjustmentBelt Alignment Tracking AdjustmentThrottle Control and Choke Adjustments Belt AdjustmentCutter Deck Adjustments Cutter Deck LevelCutter Deck Pitch 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 Hydraulic System Checking Hydraulic Oil LevelChanging Hydraulic Oil Changing Engine Crankcase Oil Engine OILChanging Hydraulic Oil Filter Element Checking Engine Crankcase Oil LevelEngine AIR Cleaner BatteryEngine Fuel System Battery Electrolyte First AID Charging the BatteryBlade Inspection Jump StartingDrive Belts Cutter BladesTires Blade ReplacementChecking Coolant Level Cutter Deck GearboxChecking Lubricant Level Cooling SystemCleaning the Radiator Debris Screen Checking The Fan Belt TensionBODY, DECK, and Upholstery Page 61A, 72A Cutter Decks Ref. Part Description Cutter Deck Controls Part Description Sheet Metal Components Wheel Assy Inc.items 20, 42, 43, 54 Deck Drive Components Ref. Part Description RADIATOR, Coolers & Engine Brackets Ref. Part No. No. Description Brake and Steering Components Part Description Fuel and Hydraulic System Ref. Part Description Electrical System Ref. Part No. No. Description Hydraulic Pump Assembly BDP-21L Housing Kit Includes Housing, Journal Bearing Wire HARNESS, STT 31BSG Part Number Heavy-Duty 48825 48314 481937 Limited Warranty Commercial Equipment 2002
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