Scag Power Equipment STT-31BSG manual Blade Replacement, Tires

Page 38

Section 7

Angle Blade Back

Do Not Cut In

 

X Must NOT Exceed￿

30

1/3 Blade￿Width

 

2002SGB033

Figure 7-9 Blade Sharpening

2.Check the balance of the blade. If the blades are out of balance, vibration and premature wear can occur. See your authorized Scag dealer for blade balancing or special tools, if you choose to balance your own blades.

C. Blade Replacement

WARNING:

Always wear proper hand and eye protection when working with cutter blades.

1.Remove the ignition key before replacing 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.

3.Secure the cutter blades to prevent them from rotating, (Use the optional Blade Buddy tool, P/N 9212, to assist in securing the cutter blades), remove the nut from the blade attaching bolt. Remove the cutter blade, bolt and spacer from the spindle shaft. (Figure 7-10).

-NOTE-

The front of the machine will have to be raised slightly to remove the blade bolt from the cutter spindle.

4.To install the new cutter blade, put the flat washer onto the blade bolt and slide the bolt into the hole in the cutter blade.

HEX NUT-TORQUE￿

TO 75 LB-FT

SPINDLE￿

CUTTER￿

SHAFT

DECK

HEX HEAD￿

BOLT / NUT

SPINDLE ￿

ASSEMBLY

CUTTER BLADE￿

SPACER

CUTTER￿

BLADE

WASHER

HEX HEAD BOLT

390S0160

Figure 7-10 Blade Replacement

-NOTE-

Be sure that the blade is installed with the lift wing toward the top.

5.Install the spacer onto the blade bolt and insert the bolt into the cutter spindle shaft.

6.Install the hex nut to the blade bolt at the top of the cutter spindle. Secure the blades from rotating and torque to 75 ft-lbs. (See Figure 7-10)

7.10 TIRES

Check the tire pressures after every 8 hours of operation or daily.

Caster Wheels

25 PSI

Drive Wheels

12 PSI

34

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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 Before Operation ConsiderationsBefore Operation Considerations Contd Operation ConsiderationsMaintenance Considerations Operation Considerations ContdSafety and Instructional Decals Drive System EngineEngine Deck Approximate Dimensions SpecificationsAdditional Specifications ProductivityOperating Instructions Controls and Instrument IdentificationSafety Interlock System Dump Valve ControlForward Travel Starting the EngineGround Travel and Steering Reverse Travel Engaging the Deck Drive Cutter BladesAfter Operation Hillside OperationParking the Mower Recommendations for Mowing Removing Clogged MaterialMoving Mower with Engine Stopped Adjusting Cutting Height Towing optional hitch accessoryTroubleshooting Cutting Conditions Condition Cause CureTroubleshooting Contd Condition Cause Cure Scalloped Cut, or Rough ContourTroubleshooting Contd GroundTravel Adjustments AdjustmentsParking Brake Adjustment Neutral Adjustment RH Steering Control Rod AdjustmentBelt Adjustment Tracking AdjustmentThrottle Control and Choke Adjustments Belt AlignmentCutter Deck Pitch Cutter Deck AdjustmentsCutter Deck Level 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 Changing Hydraulic Oil Hydraulic SystemChecking Hydraulic Oil Level Checking Engine Crankcase Oil Level Engine OILChanging Hydraulic Oil Filter Element Changing Engine Crankcase OilEngine Fuel System Engine AIR CleanerBattery Charging the Battery Battery Electrolyte First AIDCutter Blades Jump StartingDrive Belts Blade InspectionBlade Replacement TiresCooling System Cutter Deck GearboxChecking Lubricant Level Checking Coolant LevelBODY, DECK, and Upholstery Cleaning the Radiator Debris ScreenChecking The Fan Belt Tension 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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