Exmark 4500-645 manual Using the Rollover Protection System Rops

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Safety

DANGER

Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels dropping over edges, ditches, steep banks, or water can cause rollovers, which may result in serious injury, death or drowning.

Do Not mow slopes when grass is wet.

Do Not mow near drop-offs or near water.

Do Not mow slopes greater than 15 degrees.

Reduce speed and use extreme caution on slopes.

Avoid sudden turns or rapid speed changes.

Keep the roll bar in the raised and locked position and use seat belt.

See inside the back cover to determine the approximate slope angle of the area to be mowed.

Use a walk behind mower and/or a hand trimmer near drop-offs, ditches, steep banks or water. (Figure 3).

Watch for ditches, holes, rocks, dips and rises that change the operating angle, as rough terrain could overturn the machine.

Avoid sudden starts when mowing uphill because the mower may tip backwards.

Be aware that operating on wet grass, across steep slopes or down hill may cause the mower to lose traction. Loss of traction to the drive wheels may result in sliding and loss of braking and steering.

Always avoid sudden starting or stopping on a slope. If tires lose traction, disengage the blades and proceed slowly off the slope.

Follow the manufacturer’s recommendations for wheel weights or counter weights to improve stability.

Use extreme care with grass catchers or attachments. These can change the stability of the machine and cause loss of control.

Using the Rollover Protection System (ROPS)

A Rollover Protection System (roll bar) is installed on the unit.

Figure 3

1.Safe Zone-Use the mower here on slopes less than 15 degrees

2.Danger Zone-Use a walk behind mower and/or hand trimmer on slopes greater than 15 degrees, near drop-offs and water.

3.Water

Remove or mark obstacles such as rocks, tree limbs, etc. from the mowing area. Tall grass can hide obstacles.

WARNING

There is no rollover protection when the roll bar is down. Wheels dropping over edges, ditches, steep banks, or water can cause rollovers, which may result in serious injury, death or drowning.

Keep the roll bar in the raised and locked position and use seat belt.

Lower the roll bar only when absolutely necessary.

Do Not wear seat belt when the roll bar is down.

Drive slowly and carefully.

Raise the roll bar as soon as clearance permits.

Check carefully for overhead clearances (i.e. branches, doorways, and electrical wires) before

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Contents Lazer Z LPG Models All Rights Reserved Introduction Contents Safe Operating Practices SafetySafety Alert Symbol TrainingDo Not change the tanks when the engine is running Inspection Weekly OperationWith each tank change 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 Seat Hydrostatic Ground Drive SystemDimensions Tread Width Center to Center of Tires, Widthwise Curb WeightAccessory Weight Table Worksheet Wheel Base Center of Caster Tire to Center of Drive TireProduct Overview Torque RequirementsMotion Control Levers OperationControls Brake LeverHour Meter Ignition SwitchSafety Pressure Relief Valve Fuel ValveLPG Cylinder Brackets PTO Engagement SwitchLow Voltage Indicator Drive Wheel Release ValvesOperating Instructions Pre-StartRaise the Rollover Protection System Rops Engaging the PTO Open the Fuel ValveStarting the Engine Disengaging the PTODriving the Machine Driving ForwardAdjusting 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 Maintenance Recommended Maintenance SchedulesCheck Engine Oil Level Check Battery ChargeProposition 65 Warning Recommended Jump Starting Procedure Do Not jump start a weak battery if these conditions existCheck Mower Blades Check Safety Interlock System Check Rollover Protections Systems Roll Bar KnobsCheck for Loose Hardware Service Air CleanerCheck Seat Belt Change Engine OilLubricate Grease Fittings Check Tire PressuresCheck Condition Of Belts Lubricate Caster Wheel HubsCheck Spark Plugs Lubricate Brake Handle PivotLubricate Deck Lift Pivot Check LPG TankChange LPG Tank Change Hydraulic System Filter and FluidCopper-Based Anti-seize Wheel Hub Slotted Nut Torque SpecificationThread Locking Adhesives Dielectric GreaseAdjustments Deck LevelingPump Drive Belt Tension Adjusting the Parking Brake Deck Belt TensionElectric Clutch Adjustment Removing the Shim Motion Control Linkage Adjustment Motion Control Handle Adjustment Motion Control Damper AdjustmentMotion Control Neutral Lock Pivot Adjustment Adjusting the heightCaster Pivot Bearings Pre-Load Adjustment Adjusting the TiltClean Hydro Fan Cooling Fins Clean Engine and Exhaust System AreaRemove Engine Shrouds and Clean Cooling Fins Clean Debris From MachineWaste Disposal Battery DisposalMotor Oil Disposal Troubleshooting Problem Possible Cause Corrective ActionSee Drive Wheel Release Valves section Troubleshooting Schematics DiagramSchematic ElectricalHydraulic Diagram General Warranty Conditions and Products Covered Page Service Record Date Description of Work Done Service Done ByPage This page may be copied for personal use See EXMARK’S Complete Line of Accessories and Options