Exmark 4500-507 manual Check Rollover Protections Systems Roll Bar Knobs, Check Seat Belt

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Maintenance

second has elapsed (seat has time delay kill switch to prevent cut-outs on rough terrain).

Run engine at one-third throttle, engage PTO and raise off of seat (but do not get off of machine) engine must initiate shutdown after one second has elapsed if the handles are in. The delay will be 1/2 second if the handles are out.

Run engine at one-third throttle, with brake disengaged, move levers in and raise off seat (but do not get off of machine) engine must initiate shutdown after 1/2 second has elapsed.

Again, run engine at one-third throttle, brake engaged, and move left motion control lever in - engine must initiate shutdown after 1/2 second has elapsed.

Repeat again moving the right lever in, then moving both levers in - engine must initiate shutdown after 1/2 second has elapsed whether operator is on seat or not.

Note: If machine does not pass any of these tests, do not operate. Contact your authorized EXMARK

SERVICE DEALER.

Important: It is essential that operator safety mechanisms be connected and in proper operating condition prior to use for mowing.

Check Rollover Protections Systems (Roll Bar) Knobs

Service Interval: Before each use or daily

Check that both the mounting hardware and the knobs are in good working condition. Make sure the knobs are fully engaged with the ROPS in the raised position. The upper hoop of the roll bar may need to be pushed forward or pulled rearward to get both knobs fully engaged.

 

Figure 21

1. Engaged

2. Partially engaged — Do

 

Not operate with ROPS

 

in this condition.

 

 

Check Seat Belt

Service Interval: Before each use or daily

Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if damaged.

Check for Loose Hardware

Service Interval: Before each use or daily

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

2.Visually inspect machine for any loose hardware or any other possible problem. Tighten hardware or correct the problem before operating.

Service Air Cleaner

Service Interval: Every 200 hours—Service the air cleaner. (May need more often under severe conditions. See the Engine Owner’s Manual for additional information.)

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

2.Loosen retaining clips and remove air cleaner compartment cover.

3.Remove paper element. Check the condition of the paper element. Replace if dirty, bent or damaged.

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Contents Lazer Z Models California Introduction Contents Training SafetySafety Alert Symbol Safe Operating PracticesSafety Operation Slope Operation Using the Rollover Protection System RopsMaintenance and Storage Safety Safety and Instructional Decals 109-3148 109-7232 109-8483 117-2718 116-0211 Message Display Model Numbers SpecificationsSystems Hydrostatic Ground Drive System SeatTires & Wheels Overall Length DimensionsCutting Deck Overall WidthWheel 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 OverviewControls OperationFuel Gauge Ignition SwitchHour Meter Fuel Shut-Off ValveDeck Lift Pedal PTO Engagement SwitchLow Voltage Indicator Drive Wheel Release ValvesOperating Instructions Pre-StartRaise the Rollover Protection System Rops Disengaging the PTO Open the Fuel Shut-Off ValveStarting the Engine Engaging the PTODriving the Machine Adjusting the Cutting HeightTransporting Adjusting the Anti-Scalp RollersTransporting a Unit Loading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeCheck Mower Blades Check Safety Interlock SystemCheck for Loose Hardware Service Air CleanerCheck Rollover Protections Systems Roll Bar Knobs Check Seat BeltCheck Hydraulic Oil Level Change Engine OilCheck Tire Pressures Lubricate Grease Fittings Check Condition Of BeltsLubricate Caster Wheel Hubs Change Fuel Filter Lubricate Brake Handle PivotLubricate Deck Lift Pivot Check Spark PlugsCheck Spark Arrester if equipped Wheel Hub Slotted Nut Torque SpecificationDeck Leveling Thread Locking AdhesivesCopper-Based Anti-seize Dielectric GreaseFoot lever Transport lock Cut of height pin Deck Removal Pump Drive Belt Tension Adjusting the Parking BrakeDeck Belt Tension Motion Control Linkage Adjustment Electric Clutch AdjustmentRH Motion Control Shown Motion Control Damper AdjustmentMotion Control Handle Adjustment Motion Control Neutral Lock Pivot AdjustmentClutch Shim Caster Pivot Bearings Pre-Load AdjustmentShim Clean Debris From Machine Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Clean Hydro Fan Cooling GuardsWaste Disposal Battery DisposalMotor Oil Disposal Problem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Troubleshooting Electrical Diagram SchematicsElectrical SchematicHydraulic Diagram Exmark Lazer Z and Lazer Z AS Turf Equipment Page Page See EXMARK’S Complete Line of Accessories and Options