Scag Power Equipment STT-31BSG manual Jump Starting, Drive Belts, Blade Sharpening, Cutter Blades

Page 36

Section 7

WARNING:

BATTERIES PRODUCE EXPLOSIVE GASES. Charge the battery in a well ventilated space so gases produced while charging can dissipate.

Charging rates between 3 and 50 amperes are satisfactory if excessive gassing or spewing of electrolyte does not occur or the battery does not feel excessively hot (over 125°F). If spewing or gassing occurs or the temperature exceeds 125°F, the charging rate must be reduced or temporarily stopped to permit cooling.

C. Jump Starting

1.The booster battery must be a 12 volt type. If a vehicle is used for jump starting, it must have a negative ground system.

2.When connecting the jumper cables, connect the positive cable to the positive battery post, then connect the negative cable to the negative battery post.

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.

7.8 DRIVE BELTS

All drive belts are spring loaded and self-tensioning, however after the first 2, 4, 8 and 10 hours of operation, the belts should be checked for proper alignment and wear. Thereafter, check the belts after every 40 hours of operation or weekly, whichever occurs first.

-NOTE-

If you experience frequent belt wear or breakage, see your authorized Scag service center for belt adjustment.

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 7-9, Page 33.

1.Sharpen the cutting edge at the same bevel as the original. See Figure 7-9, Page 33. Sharpen only the top of the cutting edge to maintain sharpness.

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 positon to prevent the cutter deck from falling.

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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 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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