Scag Power Equipment STT61V-25KBD manual Tires, Blade Sharpening, Blade Replacement

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Section 7

R

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 7-6.

1.Sharpen the cutting edge at the same bevel as the original. See Figure 7-6. Sharpen only the top of the cutting edge to maintain sharpness.

Angle Blade Back

Do Not Cut In

		X Must NOT Exceed
	30	1/3 Blade Width
	30	SGB033
		SGB033

Figure 7-6. 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 7-7)

- 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
		390S0160

Figure 7-7. 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 7-7)

7.10 TIRES

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

Caster Wheels	Flat Free
Drive Wheels	12 PSI

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Contents OPERATOR’S Manual STT61V-28CAT-SS Remember Your Mower is only AS Safe AS the OperatorTable of Contents Adjustments Parking Brake Adjustment Travel Adjustments Introduction General InformationDirection Reference Servicing The Engine and Drive TraiN ComponentsSymbol Description SymbolsBefore Operation considerations Safety InformationSignal Words Operation Considerations Section Foldable Roll-Over Protection System Roll-over protection systemSeat Belt Inspection Using a spark arrestor Maintenance Considerations & storageDiesel Fuel only Safety and Instructional DecalsPower head SpecificationsEngine ElectricalCutter Deck Weights and DimensionsHydraulic System SMT61VControls and Instrument Identification Operating InstructionsDump Valve Control Safety Interlock SystemForward Travel Starting the EngineGround Travel and Steering Reverse Travel Engaging the Deck Drive Cutter BladesHillside Operation Rotating BladesParking the Mower After OperationRecommendations for Mowing Adjusting Cutting HeightMoving Mower with Engine Stopped Adjusting the Steering Levers Adjusting the Height Adjust PedalTowing optional hitch accessory Condition Cause Cure Troubleshooting Cutting ConditionsCut, or Rough Contour Troubleshooting Cutting Conditions ContdScalping Blades Hitting Parking Brake Adjustment AdjustmentsNeutral Adjustment Travel AdjustmentsTracking Adjustment Throttle Control and Choke AdjustmentsBelt Adjustment Belt Alignment Cutter Deck AdjustmentsCutter Deck Level Cutter Deck PitchCutter Deck Stop Cutter Deck HeightCustom-Cut Baffle Adjustment Custom-Cut Baffle AdjustmentClutch Air Gap Adjustment Electric clutch adjustmentMaintenance Chart Recommended Service Intervals MaintenanceLubrication Maintenance Chart Recommended Service Intervals ContdLubrication Fitting Points Changing Hydraulic Oil Checking Hydraulic Oil LevelEngine Fuel System Engine OilEngine Air Cleaner BatteryCleaning and/or Replacing Air Cleaner Element Replacing In-Line Fuel Filter ElementsCutter Blades Charging the BatteryBlade Inspection Jump StartingBlade Sharpening Blade ReplacementTires Cooling System Cutter Deck GearboxChecking Lubricant Level Changing LubricantChecking The Fan Belt Tension Cleaning the Radiator Debris ScreenBODY, DECK, and Upholstery Scag Approved Attachments and Accessories Illustrated Parts ListIllustrated Parts List Section 61V & 72V Cutter Deck Description Cutter Deck Controls 481764 Link, Deck Lift Sheet Metal Components Sheet Metal Components Section STT ROLL-OVER Protection System with Suspension Seat 9292 Deck Drive Components Deck Drive Components Engine & Attaching Parts CAT Diesel Available through the individual engine manufacturer Radiator & Attaching Parts CAT Diesel Radiator & Attaching Parts CAT Diesel Engine & Attaching Parts Kubota Diesel 424633 Latch, Hood Brake and Steering Components Brake and Steering Components Fuel and Hydraulic System CAT Diesel Fuel and Hydraulic System CAT Diesel Fuel and Hydraulic System Kubota Diesel Hose Assy, 1/2 ID Tank to Filter Base Section BDP-16A Hydraulic Pump Assembly with Cooling Fan Hex Screw, Flanged Head M10 x 1.50-65mm Electrical System CAT Diesel Electrical System CAT Diesel Electrical System Kubota Diesel 483643 Cover, Sealed Single 483641 Manufactured Under ONE or More Replacement Decals and Information PlatesSttkbd Decals Page2 COM Electrical Schematic CAT DieselGlow Plug POS NEG Volt Meter PTO Switch Module Relay Electrical Schematic Kubota DieselLimited Warranty Commercial Equipment