Exmark 4500-645 manual Change LPG Tank, Change Hydraulic System Filter and Fluid

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Maintenance

Check the entire LPG fuel delivery system for damage or deterioration. Follow all the inspection checks as specified in the Inspection section in Safety.

Change LPG Tank

Service Interval: As required

Change the LPG tank outdoors in a well ventilated area.

1.Stop the machine on level ground, disengage the PTO, and engage the parking brake.

2.Close the fuel valve on the tank.

3.Purge all vapors from the hose, by running the engine until it stops, turn key to “OFF” and remove it from the ignition.

4.Carefully disconnect the LPG fuel hose.

5.Unlatch the cylinder brackets and remove the tank.

WARNING

Fuel system components are under high pressure. The use of damaged or improper components can cause system failure, fuel leakage, and possible explosion, which may result in serious injury or death.

Do Not attempt to repair or modify the valves, fittings, or other tank components.

ONLY use the Exmark approved LPG tank, fittings, and hoses that were designed for your mower.

6.Inspect the filled tank valve and fitting openings for dirt, debris, or damage.

7.Inspect the tank hose connection fitting for damaged or missing o-rings.

8.Make sure the replacement tank type and size match the tank specification decal.

9.Align the center hole over the mounting pin that points straight up on the mower as shown in Figure 26.

 

 

Figure 26

1.

Tank collar

3. Center hole

2.

Mounting pin

 

Important: Valves and gauges may not function properly if the LPG tank is not installed correctly.

10.Latch the brackets and make sure the tank is securely fastened to the mower.

11.Carefully connect the fuel hose. Make sure the hose is not kinked.

12.Slowly open the fuel valve to equalize the pressure in the tank. If the fuel valve is opened too quickly, the pressure relief valve is equipped with a back pressure check valve that will shut off the fuel supply. If this happens, close the fuel valve completely and wait five seconds. Slowly open the fuel valve.

13.Check for leaks as described in the Inspection section in Safety.

Change Hydraulic System Filter and Fluid

Service Interval: Every 500 hours

Note: Only use Exmark Hydro Filter–Part No. 116-0164 for summer or winter.

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

2.Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely.

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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 Systems SpecificationsModel Numbers 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 ValvesRaise the Rollover Protection System Rops Pre-StartOperating Instructions Starting the Engine Open the Fuel ValveEngaging the PTO Disengaging the PTODriving Forward Driving the MachineDriving in Reverse Adjusting the Cutting HeightAdjusting the Anti-Scalp Rollers Do Not drive a unit on a public street or roadway TransportingTransporting a Unit Loading a Unit Operation Recommended Maintenance Schedules MaintenanceProposition 65 Warning Check Battery ChargeCheck Engine Oil Level 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 MachineMotor Oil Disposal Battery DisposalWaste 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