Exmark 4500-645 manual LPG Cylinder Brackets, Drive Wheel Release Valves, PTO Engagement Switch

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Operation

Important: This valve has a protective plastic cap that should NEVER be removed. If the cap is damaged or missing, contact trained and qualified personnel immediately.

LPG Cylinder Brackets

The brackets are located on the engine deck.

The LPG cylinder brackets are used to fasten the removable LPG tank to the mower.

Drive Wheel Release Valves

WARNING

Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury or death.

Stop engine, remove key, allow all the moving parts to stop before accessing the drive wheel release valves.

WARNING

The engine and hydraulic drive units can become very hot. Touching a hot engine or hydraulic drive units can cause severe burns.

Allow the engine and hydraulic drive units to cool completely before accessing the drive wheel release valves.

Located on the back of the unitized hydraulic drive units, below the engine deck.

During normal operating conditions, the drive wheel release valves are positioned horizontally. If the machine has to be pushed by hand, the valves must be in the “released” position (see Figure 10).

Figure 10

1.Handle in “released” position

2.Handle in “operating” position

To release the drive system (see item 1 in Figure 10), rotate the handle 1/4 turn to the vertical position until it hits against the stop.

To reset the drive system (see item 2 in Figure 10), rotate the handle 1/4 turn to the horizontal position until it hits against the stop.

Note: The handle must be horizontal and against the stop for operation.

Do Not tow machine.

PTO Engagement Switch

Located on right console (see Figure 6).

Switch must be pulled out (up) to engage the blades. Switch is pushed in to disengage the blades.

The LCD indicator will appear when the PTO switch is disengaged (see Figure 9).

Low Voltage Indicator

Located on the right console in the message display (see Figure 6 and Figure 9).

A low voltage condition (less than 12.3 volts) exists when the LCD indicator appears on the message display while the engine is running.

If the ignition key is turned to the “ON” position for a few seconds before cranking the engine, the battery voltage will display in the area where the hours are normally displayed.

Note: The indicator normally appears when the engine is off and the key switch is turned to the “ON” position.

Deck Lift Pedal

Located at the right front corner of the floor pan.

Push the pedal forward with your foot to raise the cutting deck. Allow the pedal to move rearward to lower the cutting deck to the cut height that has been set.

Transport Lock

Located on the height of cut adjustment plates to the right of the parking brake.

Position in the transport latching position to automatically latch the cutting deck when raised to the transport position (see item 1 in Figure 11).

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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 Model Numbers SpecificationsSystems 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 ValvesOperating Instructions Pre-StartRaise the Rollover Protection System Rops Starting the Engine Open the Fuel ValveEngaging the PTO Disengaging the PTODriving Forward Driving the MachineAdjusting the Anti-Scalp Rollers Adjusting the Cutting HeightDriving in Reverse Transporting a Unit TransportingDo Not drive a unit on a public street or roadway Loading a Unit Operation Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeProposition 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 MachineWaste Disposal Battery 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