Exmark 4500-501 Rev A manual Clean Engine Cooling System, Remove Accumulated Debris from Engine

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Maintenance

Cleaning

Clean Engine Cooling System

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

CAUTION

Excessive debris around the engine cooling air intake and inside of the pump drive belt compartment and damaged or missing rubber baffles can cause the engine and hydraulic system to overheat which can create a fire hazard.

Clean all debris from inside of pump drive belt compartment daily.

Clean debris from radiator screen and core daily.

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

2.Clean all debris from inside of pump drive belt compartment.

3.Wipe debris from screen in engine cover.

4.Rotate engine cover forward and wipe debris from radiator core as required.

5.Clean debris from radiator fins with compressed air.

Important: If debris or air can not be blown through the radiator, see Cleaning of the Radiator section.

6.Inspect seals in engine cover and replace if necessary.

Remove Accumulated Debris from Engine

Service Interval: Before each use or daily

Engine parts should be kept clean to reduce the risk of overheating and ignition of accumulated debris.

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

2.Remove air deflector panel from behind seat.

3.Clean around flywheel, cylinder head, injectors, and injector pump.

4.Reinstall the air deflector panel.

Important: Do Not use water to clean engine. Use low pressure compressed air. See Engine Owner’s Manual.

Cleaning of the Radiator

Service Interval: Every 50 hours (May be required more often in dry or dirty conditions.)

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

2.Allow engine to cool.

3.Rotate seat and engine cover forward.

4.While holding fan up, remove the four screws attaching the fan to the shroud. Disconnect and remove the fan.

5.Using compressed air, blow out debris stuck between the fins of the entire radiator, both from the top down and from the bottom up.

6.If debris remains, it may be necessary to use water from a low pressure hose. If the radiator is clean, proceed to step 8.

7.Cover the engine with a piece of cardboard, or a plastic sheet. Squirt water down through the fins. Blow through with low pressure air from both directions. If debris remains, repeat until clean.

8.Re-assemble the fan to the radiator. Reconnect the fan.

9.Start the engine to ensure the fan is functioning properly.

Clean Debris From Machine

Service Interval: Before each use or daily

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

2.Clean off any oil, debris, or grass build-up on the machine and cutting deck, especially under deck belt shields, around the fuel tank, around engine and exhaust area.

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Contents Lazer Z XS California Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingOperation Slope Operation Using the Rollover Protection System Rops Maintenance and StorageSafety Safety and Instructional Decals 103-0223 103-0261 103-1798 103-2076 103-7218 107-2102 Safety 109-2264 109-2478 109-2951 109-3148 Safety 107-9866 Model Numbers SpecificationsSystems Tires & Wheels Hydrostatic Ground Drive SystemCutting Deck Dimensions Torque RequirementsOperation Product OverviewControls Coolant Temperature Gauge Tracking Adjustment KnobPTO Engagement Switch Hour MeterPre-Start Open the Fuel Shut-Off Valve Operating InstructionsRaise the Rollover Protection System Rops Starting the EngineStopping the Engine Engaging the PTODisengaging the PTO Driving the MachineAdjusting the Cutting Height Driving ForwardAdjusting the Anti-Scalp Rollers Transporting a Unit TransportingLoading a Unit Operation Maintenance Recommended Maintenance SchedulesCheck Battery Charge Check Engine Oil LevelCheck Safety Interlock System Check Mower BladesCheck Seat Belt Check Rollover Protections Systems Roll Bar PinsService Air Cleaner Check for Loose HardwareCheck Tire Pressures Change Engine OilCheck Hydraulic Oil Level Check Condition Of BeltsLubricate Grease Fittings Lubricate Caster Wheel HubsLubricate Motion Control Bronze Bushings Lubricate Brake Handle PivotLubricate Brake Rod Bushings Drain Fuel Filter/Water SeparatorChange Inline Fuel Filter Wheel Hub Slotted Nut Torque SpecificationChange Fuel Filter/Water Separator Change Hydraulic System FilterCheck Engine Coolant Level Change Engine CoolantThread Locking Adhesives Fuel Tank Mounting Hardware SpecificationsMobil HTS Grease Or Food-Grade Anti-seize Dielectric Grease Copper-Based Anti-seizeDeck Leveling Mule Drive Belt Tension Adjustment Pump Drive Belt TensionDeck Belt Tension Belt Guide AdjustmentBrake Link Adjustment Alternator Belt TensionElectric Clutch Adjustment Brake AdjustmentReverse Indicator Adjustment Motion Control Linkage Adjustment Motion Control Damper Adjustment Caster Pivot Bearings Pre-Load AdjustmentClutch Shim Removing the Shim Feeler gauge Clean Debris From Machine Clean Engine Cooling SystemCleaning of the Radiator Remove Accumulated Debris from EngineWaste Disposal Clean Grass Build-Up Under DeckBattery Disposal Motor Oil DisposalTroubleshooting Problem Possible Cause Corrective ActionTroubleshooting Troubleshooting Ignition Switch ElectricalElectrical Logic Schematic Hydraulic Diagram Exmark Commercial Turf Equipment Page Page Service Record Page Page See EXMARK’S Complete Line of Accessories and Options