Scag Power Equipment STT-31BSG manual 481588 481937

Page 60

REPLACEMENT DECALS AND INFORMATION PLATES

48825

48314

IMPORTANT ADJUSTMENT

PROCEDURES

READ OPERATOR'S MANUAL

FOR MORE DETAILS

Check tire pressure- (Drive tires - 12 psi, Caster tires -25 psi)

NEUTRAL ADJUSTMENT

Loosen jam nuts

Rotate turnbuckle

With an operator in the seat, engine running, control levers in neutral and the parking brake disengaged - adjust control linkage. Loosen jam nuts. If wheel rotates forward, adjust turnbuckle CCW. If wheel rotates rearward, adjust turnbuckle CW. Adjust until drive wheel stops turning. Tighten jam nuts. Repeat for opposite side.

TRACKING ADJUSTMENT

If the machine pulls to the right, adjust LH control linkage CCW to slow left wheel. If the machine pulls to the left, adjust RH control linkage CCW to slow right wheel. Readjust neutral if necessary.

Gearbox lubricant:

SAE 80W90 gear oil

FREE WHEEL OPERATION

To move machine without running the engine, rotate both dump valve levers located at the LH side of the pumps CCW 1/2 turn to "freewheel" positions. Return levers to original position to operate the mower.

HYDRAULIC TANK FLUID LEVEL

Check hydraulic fluid level

daily while fluid is cool.

Fluid level should be 3-1/4"

below top of filler neck.

Fill with SAE 20W50 motor oil only.

IMPORTANT!:

Do not overfill. Room for hot

fluid expansion must be allowed or resulting expansion may cause leaks in the system.

481588

481588

481937

481921

481921

R

481921

481925

481664

481664

482165

481663

481663

STT-31BSG Decals 2

56

Image 60

Contents OPERATOR’S Manual Remember Your Mower is only AS Safe AS the Operator Table of Contents Table of Contents Contd General Information IntroductionDirection Reference Servicing the Engine and Drive Train ComponentsISO Symbols Fast Slow Safety Information Signal WordsBefore Operation Considerations Before Operation Considerations Contd Operation ConsiderationsMaintenance Considerations Operation Considerations ContdForward Reverse Engine Engine DeckDrive System Specifications Operating Instructions Controls and Instrument IdentificationSafety Interlock System Starting the Engine Ground Travel and SteeringForward Travel Reverse Travel Engaging the Deck Drive Cutter BladesHillside Operation Parking the MowerAfter Operation Removing Clogged Material Moving Mower with Engine StoppedRecommendations for Mowing Adjusting Cutting Height Deck Release LeverTroubleshooting Cutting Conditions Condition Cause CureTroubleshooting Contd Condition Cause Cure Scalloped Cut, or Rough ContourTroubleshooting Contd GroundAdjustments Parking Brake AdjustmentTravel Adjustments Neutral Adjustment RH Steering Control Rod AdjustmentTracking Adjustment Throttle Control and Choke AdjustmentsBelt Adjustment Belt AlignmentCutter Deck Adjustments Cutter Deck LevelCutter Deck Pitch Cutter Deck Height Adjustment Cutter Deck HeightMaintenance Maintenance Chart Recommended Service IntervalsMaintenance Chart Recommended Service Intervals Contd Lubrication Grease Fitting Lubrication Chart see FigureLubrication Fitting Points Hydraulic System Checking Hydraulic Oil LevelChanging Hydraulic Oil Engine OIL Changing Hydraulic Oil Filter ElementChecking Engine Crankcase Oil Level Changing Engine Crankcase OilEngine AIR Cleaner BatteryEngine Fuel System Charging the Battery Battery Electrolyte First AIDJump Starting Drive BeltsBlade Sharpening Cutter BladesBlade Replacement TiresCutter Deck Gearbox Checking Lubricant LevelCooling System Checking Coolant LevelCleaning the Radiator Debris Screen Checking The Fan Belt TensionBODY, DECK, and Upholstery 61A, 72A Cutter Decks Ref. Part Description Cutter Deck Controls Part Description Sheet Metal Components Ref. Part No. No Description Deck Drive Components Ref. Part Description RADIATOR, Coolers & Engine Brackets Ref. Part No. No. Description Brake and Steering Components Ref. Part Description Fuel and Hydraulic System Elbow, 90 Degree-1/4 NPT x 3/8 Hose 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 481588 481937 Limited Warranty Commercial Equipment 2000

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