Simplicity ZT4000 Series manual Reinstalling the Mower Blades, Balancing the Mower Blade Nail

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Regular Maintenance

Sharpening the Mower Blade

WARNING

Avoid injury! Mower blades are sharp.

•Always wear gloves when handling mower blades or working near 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 28) 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

WARNING

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 29. 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.Wedge a wooden block between the mower blade and the mower deck housing to keep the mower blade from turning.

2.Reinstall each mower blade with the air lifts pointing up towards the mower deck as shown in Figure 30. Secure with the mower blade mounting bolt and flat washer (A & B, Figure 30) and torque to 70 ft. lbs (94 Nm).

A

B

Figure 28. Sharpening the Mower Blade

A.Mower Blade Bevel

B.Mower Blade Cutting Edge

A

Figure 29. Balancing the Mower Blade

A. Nail

C

D

B

A

Figure 30. 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

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Contents Mfg. No Description 5900765 24HP Zero-Turn Riders Mfg. No Description 590070726HP Zero-Turn Riders Date Purchased Table of Contents Children Operating SafetyRead the Manual Moving Parts Slope OperationThrown Objects Overhead Obstacles Roll Bar UseRetaining Walls, Drop-offs, and Water Fuel and Maintenance Enclosed AreasGeneral Operation Transporting and StorageTowed Equipment Ride-On Units EmissionsIgnition System Operating on steep slopes can be dangerousSafe Handling of Gasoline Service and MaintenanceService & Maintenance Inspection of the Roll Bar Protective Structure Roll Bar InstructionsOperational Warnings Inspection and Maintenance of the Roll Bar Seat Belt Safety Decals Objects HazardSafety Interlock System Operational Safety ChecksSafety Icons North American Safety IconsIdentification Numbers CE ModelsCE Identification Tag Markings North American ModelsChoke PTO Power Take Off SwitchParking Brake Ignition Switch Hour Meter / Maintenance ReminderSeat Adjustment Lever Throttle ControlGeneral Operating Safety Checks Before StartingSeat Adjustment Check Tire PressuresPushing the Rider by Hand OperationTo Adjust Pedal Position Mowing Height AdjustmentFoot Pedal Adjustment Starting the Engine Stopping the RiderForward Travel Practice Zero-Turn Driving PracticeSmooth Travel Practice Turning In Place Practice Turning Around a CornerExecuting an End-Of-Row Zero Turn Storage MowingMowing Recommendations Fire or explosion can cause severe burns or deathMowing Methods Attaching a Trailer Proper MulchingMulching Requires Excellent Mowing Conditions How Much Grass to MulchMaintenance Schedule Check Rider / Mower for loose hardwareChecking / Adding Fuel Fuel FilterChange Oil & Filter Inspect Muffler and Spark ArresterChange Hydraulic Oil Filter Battery MaintenanceCheck Hydraulic Oil Level Lubrication GreaseOil Lubricating the Front CastersServicing The Mower Blades Inspecting the Mower BladesReinstalling the Mower Blades Balancing the Mower Blade NailGround Speed Control Lever Adjustment Speed Balancing AdjustmentTo Adjust Neutral AdjustmentReturn-to-Neutral Adjustment Parking Brake Adjustment Hydraulic Pump Drive Belt ReplacementSpring loaded components can kick back causing injury Rear Suspension AdjustmentTo adjust the spring pre-load Deck Lift Rod Timing And Leveling Adjustment Mower Belt Replacement Mower PTO Belt Idler Arm Stationary Idler PulleyTroubleshooting Troubleshooting the RiderTroubleshooting the Rider Troubleshooting the MowerTroubleshooting Common Cutting Problems StreakingDeck HP Briggs & StrattonHydroGear PG-3H / HGM-12E Indentification Product Quick Specs