Exmark 4500-645 manual Recommended Maintenance Schedules

Page 33

Maintenance

Maintenance

Note: Determine the left and right sides of the machine from the normal operating position.

WARNING

While maintenance or adjustments are being made, someone could start the engine. Accidental starting of the engine could seriously injure you or other bystanders.

Remove the key from the ignition switch, engage parking brake, and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).

WARNING

The engine can become very hot. Touching a hot engine can cause severe burns.

Allow the engine to cool completely before service or making repairs around the engine area.

Recommended Maintenance Schedule(s)

Maintenance Service

Maintenance Procedure

Interval

 

 

 

 

 

After the first 5 hours

Change the engine oil.

 

 

 

• Check the wheel hub slotted nut torque specifications.

After the first 100 hours

Check the wheel lug nuts.

 

• Check the park brake adjustment.

 

 

 

• Check the engine oil level.

 

Check the mower blades.

 

• Check the safety interlock system.

 

• Check the rollover protections systems (roll bar) knobs.

 

• Check the seat belt.

Before each use or daily

Check for loose hardware.

 

Check the LPG tank and components.

 

• Clean the engine and exhaust system area.

 

• Clean the hydro fan cooling guards.

 

• Clean the grass and debris build-up from the machine and cutting deck.

 

• Clean the grass build-up from under the cutting deck.

 

 

 

Every 40 hours

Check the entire LPG fuel delivery system.

 

 

 

• Check the hydraulic oil level.

Every 50 hours

Check the tire pressures.

 

• Check the condition of the belts.

 

 

 

• Change the engine oil. (May need more often under severe conditions.)

Every 100 hours

Lubricate the deck lift pivots.

 

• Remove the engine shrouds and clean the cooling fins.

 

 

Every 200 hours

• Lubricate the brake handle pivot.

• Check the spark plugs.

 

 

 

 

• Replace the primary air cleaner element — check secondary air cleaner element; replace if

Every 250 hours

 

dirty. (May need more often under severe conditions. See the Engine Owner’s Manual for

 

 

additional information.)

 

 

 

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Contents Lazer Z LPG Models All Rights Reserved Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingDo Not change the tanks when the engine is running Inspection With each tank change OperationWeekly Tank RequalificationSlope Operation Using the Rollover Protection System Rops Maintenance and Storage Safety Safety and Instructional Decals 109-3148 109-7232 116-0157 116-0752 109-7069 109-9906 Specifications Model NumbersSystems Hydrostatic Ground Drive System SeatDimensions Accessory Weight Table Worksheet Curb WeightTread Width Center to Center of Tires, Widthwise Wheel Base Center of Caster Tire to Center of Drive TireTorque Requirements Product OverviewControls OperationMotion Control Levers Brake LeverSafety Pressure Relief Valve Ignition SwitchHour Meter Fuel ValveLow Voltage Indicator PTO Engagement SwitchLPG Cylinder Brackets Drive Wheel Release ValvesPre-Start Operating InstructionsRaise the Rollover Protection System Rops Starting the Engine Open the Fuel ValveEngaging the PTO Disengaging the PTODriving Forward Driving the MachineAdjusting the Cutting Height Adjusting the Anti-Scalp RollersDriving in Reverse Transporting Transporting a UnitDo Not drive a unit on a public street or roadway Loading a Unit Operation Recommended Maintenance Schedules MaintenanceCheck Battery Charge Check Engine Oil LevelProposition 65 Warning Do Not jump start a weak battery if these conditions exist Recommended Jump Starting ProcedureCheck Mower Blades Check Rollover Protections Systems Roll Bar Knobs Check Safety Interlock SystemCheck Seat Belt Service Air CleanerCheck for Loose Hardware Change Engine OilCheck Condition Of Belts Check Tire PressuresLubricate Grease Fittings Lubricate Caster Wheel HubsLubricate Deck Lift Pivot Lubricate Brake Handle PivotCheck Spark Plugs Check LPG TankChange Hydraulic System Filter and Fluid Change LPG TankThread Locking Adhesives Wheel Hub Slotted Nut Torque SpecificationCopper-Based Anti-seize Dielectric GreaseDeck Leveling AdjustmentsPump Drive Belt Tension Deck Belt Tension Adjusting the Parking BrakeElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Motion Control Neutral Lock Pivot Adjustment Motion Control Damper AdjustmentMotion Control Handle Adjustment Adjusting the heightAdjusting the Tilt Caster Pivot Bearings Pre-Load AdjustmentRemove Engine Shrouds and Clean Cooling Fins Clean Engine and Exhaust System AreaClean Hydro Fan Cooling Fins Clean Debris From MachineBattery Disposal Waste DisposalMotor Oil Disposal Problem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Diagram SchematicsElectrical SchematicHydraulic Diagram General Warranty Conditions and Products Covered Page Date Description of Work Done Service Done By Service RecordPage This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options