Exmark 4500-872 Caster Pivot Bearings Pre-Load Adjustment, Clean Engine and Exhaust System Area

Page 45

Maintenance

Figure 39

RH Motion Control Shown

1. Screw

3. Motion control lever

2.Cover plate

Caster Pivot Bearings Pre-Load Adjustment

Remove dust cap from caster and tighten nyloc nut until washers are flat and back off 1/4 of a turn to properly set the pre-load on the bearings. If disassembled, make sure the spring disc washers are reinstalled as shown in Figure 40.

Cleaning

Clean Engine and Exhaust System Area

Service Interval: Before each use or daily (May be required more often in dry or dirty conditions.)

CAUTION

Excessive debris around engine cooling air intake and exhaust system area can cause engine, exhaust area, and hydraulic system to overheat which can create a fire hazard.

Clean all debris from engine and exhaust system area.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Clean all debris from rotating engine air intake screen, around engine shrouding, and exhaust system area.

3.Wipe up any excessive grease or oil around the engine and exhaust system area

Figure 40

1.Spring disc washers

Remove Engine Shrouds and Clean Cooling Fins

Service Interval: Every 100 hours

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

2.Remove cooling shrouds from engine and clean cooling fins. Also clean dust, dirt and oil from external surfaces of engine which can cause inadequate cooling.

3.Make sure cooling shrouds are reinstalled. Operating the engine without cooling shrouds will cause engine damage due to overheating.

Clean Hydro Cooling Fins

Service Interval: Before each use or daily

Removing debris from the hydro cooling fins will allow the hydro system to run cooler and improve the life of the hydro system.

1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.

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Contents Lazer Z E-SERIES California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety Slope Operation OperationMaintenance and Storage Using the Rollover Protection System RopsSafety Safety Safety and Instructional Decals 109-7232 109-8483 116-2927 Specifications Model NumbersSystems Hydrostatic Ground Drive System SeatTires & Wheels Cutting DeckDimensions Torque Requirements Accessory Weight Table WorksheetOperation Product OverviewControls Motion Control LeversChoke Control Ignition SwitchThrottle Control Brake LeverFuel Shut-Off Valve Fuel GaugeDrive Wheel Release Valves Operating Instructions Pre-StartOpen the Fuel Shut-Off Valve Starting the EngineEngaging the PTO Disengaging the PTO Stopping the EngineDriving the Machine Driving Forward Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Adjusting the Deck Lift Foot Pedal 48 & 52 inch Decks OnlyTransporting a Unit TransportingLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeService Interval As required Recommended Jump Starting ProcedureCheck Mower Blades Check Safety Interlock SystemCheck Rollover Protections Systems Roll Bar Knobs Service Air CleanerCheck Seat Belt Check for Loose HardwareCheck Hydraulic Oil Level Check Tire PressuresCheck Condition Of Belts Lubricate Caster Wheel Hubs Lubricate Grease FittingsLubricate Deck Lift Pivot Lubricate Brake Handle PivotCheck Spark Plugs Change Fuel FilterThread Locking Adhesives Wheel Hub Slotted Nut Torque SpecificationCopper-Based Anti-seize Check Spark Arrester if equippedDeck Leveling AdjustmentsAdjusting the Parking Brake Pump Drive Belt TensionDeck Belt Tension Left Hand Brake Shown Start the mower while in the operator position Electric Clutch AdjustmentMotion Control Linkage Adjustment RH Motion Control Shown Motion Control Damper AdjustmentMotion Control Handle Adjustment Motion Control Neutral Lock Pivot AdjustmentClean Engine and Exhaust System Area Caster Pivot Bearings Pre-Load AdjustmentRemove Engine Shrouds and Clean Cooling Fins Clean Hydro Cooling FinsClean Grass Build-Up Under Deck Clean Debris From MachineBattery Disposal Waste DisposalProblem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Electrical Diagram SchematicsElectrical SchematicHydraulic Diagram Lazer Z E-Series Turf Equipment Page This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options