Exmark 4500-645 manual Adjustments, Deck Leveling

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Maintenance

Adjustments

Note: Disengage PTO, shut off engine, wait for all moving parts to stop, engage parking brake, and remove key before servicing, cleaning, or making any adjustments to the unit.

CAUTION

Raising the mower deck for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous. The mechanical or hydraulic jacks may not be enough support or may malfunction allowing the unit to fall, which could cause injury.

Do Not rely solely on mechanical or hydraulic jacks for support. Use adequate jack stands or equivalent support.

6.Insert the height adjustment pin into the 3 inch (7.6 cm) cutting height location.

7.Release the transport lock and allow the deck to lower to the cutting height.

8.Raise the discharge deflector.

9.Measure from the level surface to the front tip of the center blade. The measurement should read 3 inches (7.6 mm).

Note: In most conditions, the back tips on the side blades should be adjusted 1/4 inch (6.4 mm) higher than the front.

Deck Leveling

1.Position the mower on a flat surface.

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

3.Check the tire pressure in the drive tires. Proper inflation pressure for tires is 13 psi (90 kPa). Adjust if necessary.

4.Position the transport lock in the latching position.

5.Push the foot pedal all the way forward and the deck will latch at the 5 1/2 inch (14 cm) transport position (Figure 27).

Figure 28

1.

3 1/4 inches (8.3 cm)

4.

3 inches (7.6 cm)

2.

Back blade tip

5.

Level surface

3.

Front blade tip

 

 

10.For LZZ-LP Units: Loosen the jam nuts on the top of each deck link. Fine tune the adjuster on the front deck lift assembly by turning it to get 3 inch (7.6 mm) height (see Figure 29).

To increase the height, turn the adjuster clockwise; to decrease, turn counterclockwise.

Figure 27

1. Foot lever

3. Transport lock

2.Height of cut pin

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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 Model Numbers SpecificationsSystems 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 BracketsOperating Instructions Pre-StartRaise the Rollover Protection System Rops Disengaging the PTO Open the Fuel ValveStarting the Engine Engaging 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 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 FinsWaste 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