Exmark 4500-645 manual Check Tire Pressures, Check Condition Of Belts, Lubricate Grease Fittings

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Maintenance

Figure 24

1. Full

2. Add

Note: The oil level on the dipstick will be incorrect if the oil is checked when the unit is hot.

7.If the dipstick oil level is at the “add” mark add Exmark Premium Hydro oil.

8.Replace hydraulic reservoir cap and tighten until snug. Do Not overtighten.

Check Tire Pressures

Service Interval: Every 50 hours

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

2.Check tire pressure in drive tires.

3.Inflate drive tires to 13 psi (90 kPa).

4.Semi-pneumatic caster tires Do Not need to be inflated.

Note: Do Not add any type of tire liner or foam fill material to the tires. Excessive loads created by foam filled tires may cause failures to the hydro drive system, frame, and other components. Foam filling tires will void the warranty.

Check Condition Of Belts

Service Interval: Every 50 hours

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

2.Remove left and right belt shields on deck and lift up floor pan to inspect deck drive belt.

3.Check under machine to inspect the pump drive belt.

Note: No adjustments are required for belt tension.

Lubricate Grease Fittings

Note: See chart for service intervals.

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

2.Lubricate fittings with one to two pumps of NGLI grade #2 multi-purpose gun grease.

Refer to the following chart for fitting locations and lubrication schedule.

Lubrication Chart

Fitting	Initial	Number of	Service
Locations	Pumps	Places	Interval
1. Deck and	1	2	Yearly
Pump Idler
Pivots
2. Front	*0	2	*Yearly
Caster
Pivots

*See step 3 for special lubrication instructions on the front caster pivots.

3.Lubricate front caster pivots once a year. Remove hex plug and cap. Thread grease zerk in hole and pump with grease until it oozes out around top bearing. Remove grease zerk and thread plug back in. Place cap back on.

Lubricate Caster Wheel Hubs

Service Interval: As required

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

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Contents Lazer Z LPG Models All Rights Reserved Introduction Contents Training SafetySafety Alert Symbol Safe Operating PracticesDo Not change the tanks when the engine is running Inspection Tank Requalification OperationWith each tank change WeeklySlope 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 Wheel Base Center of Caster Tire to Center of Drive Tire Curb WeightAccessory Weight Table Worksheet Tread Width Center to Center of Tires, WidthwiseTorque Requirements Product OverviewBrake Lever OperationControls Motion Control LeversFuel Valve Ignition SwitchSafety Pressure Relief Valve Hour MeterDrive Wheel Release Valves PTO Engagement SwitchLow Voltage Indicator LPG Cylinder BracketsPre-Start Operating InstructionsRaise the Rollover Protection System Rops Disengaging the PTO Open the Fuel ValveStarting the Engine Engaging 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 SystemChange Engine Oil Service Air CleanerCheck Seat Belt Check for Loose HardwareLubricate Caster Wheel Hubs Check Tire PressuresCheck Condition Of Belts Lubricate Grease FittingsCheck LPG Tank Lubricate Brake Handle PivotLubricate Deck Lift Pivot Check Spark PlugsChange Hydraulic System Filter and Fluid Change LPG TankDielectric Grease Wheel Hub Slotted Nut Torque SpecificationThread Locking Adhesives Copper-Based Anti-seizeDeck Leveling AdjustmentsPump Drive Belt Tension Deck Belt Tension Adjusting the Parking BrakeElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Adjusting the height Motion Control Damper AdjustmentMotion Control Neutral Lock Pivot Adjustment Motion Control Handle AdjustmentAdjusting the Tilt Caster Pivot Bearings Pre-Load AdjustmentClean Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Clean Hydro Fan Cooling FinsBattery 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