Exmark 4500-507 manual Motion Control Damper Adjustment, RH Motion Control Shown

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Maintenance

neutral. Any adjustments should be made for neutral positioning only.

WARNING

Engine must be running and drive wheels must be turning so motion control adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury.

Keep fingers, hands, and clothing clear of rotating components and hot surfaces.

1.Prior to starting the engine, push the deck lift pedal and remove the height of cut pin. Lower deck to the ground.

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.

3.Remove the electrical connection from the seat safety switch, located under the bottom cushion of the seat. The switch is a part of the seat assembly.

4.Temporarily install a jumper wire across the terminals in the connector of the main wiring harness.

5.Start engine. Brake must be engaged and motion control levers out to start engine. Operator does not have to be in the seat because of the jumper wire being used. Run engine at full throttle and release brake.

6.Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature.

Note: The motion control lever needs to be in neutral while making any necessary adjustments.

7.Bring the motion control levers into the neutral position. Adjust pump control rod lengths by rotating the double nuts on the rod in the appropriate direction until the wheels slightly creep in reverse (Figure 32). Move the motion control levers to the reverse position and while applying slight pressure to the lever allow the reverse indicator springs to bring the levers back to neutral. The wheels must stop turning or slightly creep in reverse.

Figure 32

1.Double nuts

8.Shut off unit. Remove jumper wire from wire harness and plug connector into seat switch.

9.Remove the jack stands.

10.Raise the deck and re-install the height of cut pin.

11.Check that the machine does not creep in neutral with the park brakes disengaged.

Motion Control Damper Adjustment

The top damper mounting bolt can be adjusted to obtain a more desired motion control lever resistance. See Figure 33 for mounting options.

Figure 33

RH Motion Control Shown

1.Torque nyloc nut to 200 in-lb (16.7 ft-lb). Bolt must protrude past end of nyloc nut after torque. A T-40 Torx bit will be necessary to hold the stud from turning.

2.Most resistance (firmest feel)

3.Damper

4.Medium resistance (medium feel)

5.Least resistance (softest feel)

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Contents Lazer Z Models California Introduction Contents Safety Alert Symbol SafetySafe Operating Practices TrainingSafety 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 Systems SpecificationsModel Numbers Tires & Wheels SeatHydrostatic Ground Drive System Cutting Deck DimensionsOverall Width Overall LengthAccessory 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 OperationHour Meter Ignition SwitchFuel Shut-Off Valve Fuel GaugeLow Voltage Indicator PTO Engagement SwitchDrive Wheel Release Valves Deck Lift PedalRaise the Rollover Protection System Rops Pre-StartOperating Instructions Starting the Engine Open the Fuel Shut-Off ValveEngaging the PTO Disengaging the PTODriving the Machine Adjusting the Cutting HeightTransporting a Unit Adjusting the Anti-Scalp RollersTransporting Loading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeCheck Mower Blades Check Safety Interlock SystemCheck Rollover Protections Systems Roll Bar Knobs Service Air CleanerCheck Seat Belt Check for Loose HardwareCheck Tire Pressures Change Engine OilCheck Hydraulic Oil Level Lubricate Caster Wheel Hubs Check Condition Of BeltsLubricate Grease Fittings Lubricate Deck Lift Pivot Lubricate Brake Handle PivotCheck Spark Plugs Change Fuel FilterCheck Spark Arrester if equipped Wheel Hub Slotted Nut Torque SpecificationCopper-Based Anti-seize Thread Locking AdhesivesDielectric Grease Deck LevelingFoot lever Transport lock Cut of height pin Deck Removal Deck Belt Tension Adjusting the Parking BrakePump Drive 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 Remove Engine Shrouds and Clean Cooling Fins Clean Engine and Exhaust System AreaClean Hydro Fan Cooling Guards Clean Debris From MachineMotor Oil Disposal Battery DisposalWaste 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