Scag Power Equipment STT-31BSD Starting the Engine, Ground Travel and Steering, Forward Travel

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Section 4

4.3INITIAL RUN-IN PROCEDURES (First Day of Use or Approximately 10 Hours)

1.Check all belts for proper alignment and wear at 2, 4 and 8 hours.

2.Change the engine oil and oil filter after the first 5 hours of operation. (See Section 7.4.)

3.Check hydraulic oil level in reservoir. (See Section 7.3.)

4.Check for loose hardware. Tighten as needed.

5.Check interlock system for proper operation. (See Section 4.2.)

6.Check tire pressure. Adjust pressure if necessary. (See Section 7.10)

4.4 STARTING THE ENGINE

CAUTION:

DO NOT USE STARTING FLUIDS. Use of starting fluids in the air intake system may be potentially explosive or cause a “runaway” engine condition that could result in engine damage and/or personal injury.

1.Before initial start or after running out of fuel, you must prime the fuel pump located on the right side of the engine. Pump the primer pump until it can no longer be depressed.

2.Be sure the fuel shutoff valve, located behind the operator's seat, is completely open. (See Section 7.5 Page 30)

3.Sit in the operator’s seat, fasten seat belt and place the steering control levers in the neutral position.

4.Engage the parking brake.

5.Place the PTO switch in the disengaged position.

6.Move the engine throttle control to about half engine speed.

7.Turn the ignition key to the on position until the yellow indicator for the glow plugs goes out. Then turn the ignition key to the START position and release the key as soon as the engine starts. Do not hold the key in the START position for more than 15 seconds at a time. Allow at least 60 seconds between each cranking attempt to prevent overheating of the starter motor. Prolonged cranking can damage the starter motor and shorten battery life.

8.Allow engine to warm before operating the mower.

4.5 GROUND TRAVEL AND STEERING

-IMPORTANT-

If you are not familiar with the operation of a machine with lever steering and/or hydrostatic transmissions, the steering and ground speed operations should be learned and practiced in an open area, away from buildings, fences, or obstructions. Practice until you are comfortable with the handling of the machine before attempting to mow. Learn the operation on flat ground before operating on slopes.

-IMPORTANT-

Start practicing with a slow engine speed and slow forward travel.

Learn to feather the steering controls to obtain a smooth operating action.

Practice operating the mower until you are comfortable with the controls before proceeding to mow.

Forward Travel

To travel forward with the mower, disengage the parking brake and slowly push the steering control levers forward an equal distance. The further the steering control levers are pushed forward, the greater the forward speed will be. To increase the speed, push the steering control levers further forward and to decrease the speed, pull the steering control levers back.

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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 Direction Reference General InformationIntroduction Servicing the Engine and Drive Train ComponentsISO Symbols CE Mark Fast Slow Safety Information Signal WordsBefore Operation Considerations Before Operation Considerations Contd Operation ConsiderationsOperation Considerations Contd Roll Over Protection SystemSeat Belt Inspection Maintenance Considerations & Storage STT-BSD With Roll Over Protection SystemSafety and Instructional Decals Engine Engine DeckDrive System Approximate Dimensions SpecificationsAdditional Specifications ProductivityOperating Instructions Controls and Instrument IdentificationSafety Interlock System Dump Valve ControlStarting 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 AdjustmentThrottle Control Tracking AdjustmentBelt Adjustment Belt AlignmentCutter Deck Adjustments Cutter Deck LevelCutter Deck Pitch Custom-Cut Baffle Adjustment Cutter Deck HeightCustom-Cut Baffle Maintenance 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 Checking Engine Crankcase Oil Level Engine OILChanging Hydraulic Oil Filter Element Changing Engine Crankcase OilEngine AIR Cleaner BatteryEngine Fuel System Charging the Battery Jump StartingCutter Blades Blade ReplacementDrive Belts Blade InspectionTires Cutter Deck GearboxChecking Lubricant Level Cooling System Cleaning the Radiator Debris ScreenChanging Lubricant Checking Coolant LevelChecking The Fan Belt Tension BODY, DECK, and UpholsteryPage 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