Snapper 5900665, 5900686, 5900696 Reinstalling the Mower Blades, Balancing the Mower Blade Nail

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Sharpening the Mower Blade

CAUTION

Avoid injury! Mower blades are sharp.

•Always wear gloves when handling the mower blades.

•Always wear safety eye protection when grinding.

1.Sharpen the mower blades with grinder, hand file, or electric blade sharpener.

2.Sharpen the mower blade by removing an equal amount of material from each end of the mower blade.

3.Keep the original bevel (A, Figure 30) when grinding. DO NOT change the mower blade bevel.

4.The mower blade should have a maximum 1/64” (0,40 mm) cutting edge (B) or less.

5.Balance the mower blades before installing.

Balancing the Mower Blades

CAUTION

Avoid injury! Keep mower blades balanced.

•An unbalanced mower blade can create excessive vibration and damage the unit or cause mower blade failure.

1.Clean the mower blade to remove any dried grass or other debris.

2.See Figure 31. Put the mower blade on a nail in a vise and turn the mower blade to the horizontal position.

3.Check the balance of the mower blade. If either end of the mower blade moves downward, sharpen the heavy end until the mower blade is balanced. See Sharpening the Mower Blades for proper sharpening instructions.

4.Repeat the process until the mower blade remains in the horizontal position.

Reinstalling the Mower Blades

1.Reinstall each mower blade with the air lifts pointing up towards the mower deck as shown in Figure 32. Secure with the mower blade mounting bolt and flat washer (A & B, Figure 32) and torque to 70 ft. lbs (94 Nm).

2.If there are no flats on the spindle shaft, wedge a wooden block between the mower blade and the mower deck housing to keep the mower blade from turning.

Regular Maintenance

A

B

Figure 30. Sharpening the Mower Blade

A.Mower Blade Bevel

B.Mower Blade Cutting Edge

A

Figure 31. Balancing the Mower Blade

A. Nail

B

A

D

Figure 32. Tightening the Mower Blade for Installation

A.Mower Blade Mounting Bolt

B.Flat Washer

C.Mower Blade Air Lift (Points Up For Installation)

D.4 X 4 Wooden Block

Maintenance

31

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Contents Briggs & Stratton Yard Power Products Group DescriptionModel Number Date Purchased Table of Contents Safety Rules and Information Operator SafetyOperating Safety Read the ManualSlope Operation Thrown ObjectsMoving Parts Roll BAR USE Retaining WALLS, DROP-OFFS, and WaterOverhead Obstacles Enclosed Areas Fuel and MaintenanceTraining PreparationOperation Emissions Towed Equipment RIDE-ON UnitsIgnition System Gasoline Models Periods of exposureService and Maintenance Maintenance and StorageSafe Handling of Gasoline Operational Warnings Roll BAR InstructionsInspection and Maintenance of the Roll BAR Seat Belt This unit has been designed and manufactured to provide Safety DecalsOperational Safety Checks Safety Interlock SystemSafety Icons North American Safety IconsIdentification Numbers Features and ControlsSeat Adjustment Lever Features and ControlsIgnition Switch Control FunctionsFeatures & Controls General Operating Safety OperationChecks Before Starting Check Tire Pressures Seat AdjustmentMowing Height Adjustment Foot Pedal AdjustmentTo adjust pedal position Raise and Lower the Roll Bar Lower the roll bar only when necessary and Never remove itKeep roll bar in the raised position and use the seat belt To Lower the Roll BarStarting the Engine Stopping the RiderPushing the Rider By Hand Zero Turn Driving Practice Forward Travel PracticeForward Reverse Travel Practice Turning In Place Practice Turning Around a CornerExecuting an End-Of-Row Zero Turn Executing TurnsMowing Recommendations MowingHeight of Grass Tall Grass Requires Incremental CuttingMowing Methods Proper Mulching Attaching a TrailerMulching Requires Excellent Mowing Conditions Engine Speed & Ground Speed for MulchingMaintenance Schedule Regular MaintenanceSafety Items Before Every Spring Hours Fall Check Rider / Mower for loose hardwareChecking / Adding Fuel Engine MaintenanceFuel Filter Change Oil & FilterGrease LubricationOil Lubricating the Front CastersCheck Hydraulic Oil Level Change Hydraulic Oil FilterChange Interval Every 250 Hours Filter Part Number Servicing The Mower Blades Inspecting the Mower BladesNever weld or straighten bent mower blades Balancing the Mower Blade Nail Reinstalling the Mower BladesSpeed Balancing Adjustment Ground Speed Control Lever AdjustmentParking Brake Adjustment Neutral AdjustmentReturn-to-Neutral Adjustment Deck Leveling Adjustment Deck Rod Timing AdjustmentTo avoid damaging belts, do not PRY Belts Over Pulleys Mower Belt ReplacementUse extreme caution when removing this spring Hydraulic Pump Drive Belt ReplacementBattery Maintenance Checking Battery Voltage Battery ServiceCharging a Completely Discharged Battery Jump Starting With Auxiliary Booster BatteryVehicle Battery Jumper Cable To Ground Engine Block Starter Switch Jumper Cable StartingThis HOOK-UP for Negative Ground Vehicles Make Certain Vehicles do not TouchStarting After Long Term Storage StorageTemporary Storage 30 Days Or Less Long Term Storage Longer Than 30 DaysTroubleshooting Chart Troubleshooting the RiderProblem Cause Remedy Troubleshooting Troubleshooting Common Cutting Problems TroubleshootingDimensions SpecificationsEngine ChassisFerris Limited Warranty Mower Deck Tractor