Simplicity ZT4000 Series manual Servicing The Mower Blades, Inspecting the Mower Blades

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Servicing The Mower Blades

Removing the Mower Blade

WARNING

Avoid injury! Mower blades are sharp.

Always wear gloves when handling mower blades or working near blades.

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

2.To remove the mower blade, use a 15/16” wrench to remove the mower blade mounting bolt (Figure 25).

Inspecting the Mower Blades

WARNING

Avoid injury! A worn or damaged blade can break, and a piece of the mower blade could be thrown into the operator’s or bystander’s area, resulting in serious personnal injury or death.

•Inspect the mower blade every 25 hours or atleast once a year.

•If the mower blade hits a solid object, stop the engine immediately and inspect the mower blades.

•Never weld or straighten bent mower blades.

1.Inspect the mower blade (Figures 26 & 27). Discard the mower blade if it has any of the below conditions.

•Has more than .5” (12,7 mm) of the mower blade metal removed from previous sharpening or wear (D, Figure 27).

•The air lifts are excessively eroded (B & C, Figure 27) and the notch (C) is .25” (6,35 mm) deep or greater.

•Mower blade is bent or broken.

2.If the cutting edges are not sharp or have nicks, sharpen the blades. See Sharpening the Mower Blades.

Regular Maintenance

Figure 25. Loosening the Mower Blade for Removal

B	A
C	A
D
C

Figure 26. Inspecting the Mower Blade Tips

A.Mower Blade Cutting Edge

B.Square Corner

C.Air Lift

D.Wear Measurement - DISCARD Mower Blade If greater than .5” (12,7 mm)

C

AB

Figure 27. inspecting the Mower Blade Air Lifts

A.New Mower Blade

B.Mower Blade at Wear Limit (A notch begins to form)

C.Mower Blade in Dangerous Condition (Notch measures .25” (6,35 mm) or greater DO NOT USE. Replace with new mower blade.)

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Contents 26HP Zero-Turn Riders 24HP Zero-Turn Riders Mfg. No Description 5900707Mfg. No Description 5900765 Date Purchased Table of Contents Read the Manual Operating SafetyChildren Thrown Objects Slope OperationMoving Parts Retaining Walls, Drop-offs, and Water Roll Bar UseOverhead Obstacles Enclosed Areas Fuel and MaintenanceTransporting and Storage General OperationOperating on steep slopes can be dangerous Towed Equipment Ride-On UnitsEmissions Ignition SystemService & Maintenance Service and MaintenanceSafe Handling of Gasoline Operational Warnings Roll Bar InstructionsInspection of the Roll Bar Protective Structure Inspection and Maintenance of the Roll Bar Seat Belt Objects Hazard Safety DecalsNorth American Safety Icons Safety Interlock SystemOperational Safety Checks Safety IconsNorth American Models Identification NumbersCE Models CE Identification Tag MarkingsParking Brake PTO Power Take Off SwitchChoke Throttle Control Ignition SwitchHour Meter / Maintenance Reminder Seat Adjustment LeverChecks Before Starting General Operating SafetyOperation Seat AdjustmentCheck Tire Pressures Pushing the Rider by HandFoot Pedal Adjustment Mowing Height AdjustmentTo Adjust Pedal Position Stopping the Rider Starting the EngineSmooth Travel Zero-Turn Driving PracticeForward Travel Practice Executing an End-Of-Row Zero Turn Practice Turning Around a CornerPractice Turning In Place Fire or explosion can cause severe burns or death StorageMowing Mowing RecommendationsMowing Methods How Much Grass to Mulch Attaching a TrailerProper Mulching Mulching Requires Excellent Mowing ConditionsCheck Rider / Mower for loose hardware Maintenance Schedule Inspect Muffler and Spark Arrester Checking / Adding Fuel Fuel Filter Change Oil & FilterCheck Hydraulic Oil Level Battery MaintenanceChange Hydraulic Oil Filter Lubricating the Front Casters LubricationGrease OilInspecting the Mower Blades Servicing The Mower BladesBalancing the Mower Blade Nail Reinstalling the Mower BladesSpeed Balancing Adjustment Ground Speed Control Lever AdjustmentReturn-to-Neutral Adjustment Neutral AdjustmentTo Adjust Hydraulic Pump Drive Belt Replacement Parking Brake AdjustmentTo adjust the spring pre-load Rear Suspension AdjustmentSpring loaded components can kick back causing injury Deck Lift Rod Timing And Leveling Adjustment Mower PTO Belt Idler Arm Stationary Idler Pulley Mower Belt ReplacementTroubleshooting the Rider TroubleshootingTroubleshooting the Mower Troubleshooting the RiderStreaking Troubleshooting Common Cutting ProblemsHydroGear PG-3H / HGM-12E HP Briggs & StrattonDeck Indentification Product Quick Specs