Exmark 4500-645 manual Troubleshooting

Page 55

 

 

 

 

Troubleshooting

 

 

 

 

 

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

Blades do not rotate.

1.

Drive belt is worn, loose or broken.

1.

Check the belt tension.

 

2.

Deck belt is worn, loose or broken.

2.

Install new deck belt.

 

3.

Deck belt is off pulley.

3.

Install belt on clutch and deck pulleys,

 

 

 

 

idlers, and tensioning idler per routing

 

 

 

 

decal on deck.

 

4.

Broken or missing idler spring.

4.

Replace the spring.

 

5.

Drive belt not routed correctly.

5.

Refer to belt routing decal on deck.

 

 

 

 

 

Clutch will not engage.

1.

Fuse is blown.

1.

Replace fuse. Check coil resistance,

 

 

 

 

battery charge, charging system, and

 

 

 

 

wiring connections and replace if

 

 

 

 

necessary.

 

2.

Low voltage supply at the clutch.

2.

Check coil resistance, battery charge,

 

 

 

 

charging system, and wiring connections

 

 

 

 

and replace if necessary.

 

3.

Damaged coil.

3.

Replace clutch.

 

4.

Inadequate current supply.

4.

Repair or replace clutch lead wire or

 

 

 

 

electrical system. Clean connector

 

 

 

 

contacts.

 

5.

Rotor/armature airgap is too large.

5.

Remove shim or replace clutch.

 

 

 

 

 

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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