Exmark 4500-497 manual Troubleshooting, Problem Possible Cause Corrective Action

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Troubleshooting

Troubleshooting

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

When a problem occurs, Do Not overlook the simple causes. For example: starting problems could be caused by an empty fuel tank.

The following table lists some of the common causes of trouble. Do Not attempt to service or replace major items or any items that call for special timing of adjustment procedures (such as valves, governor, etc.). Have this work done by your Engine Service Dealer.

Note: When disconnecting electrical connectors Do Not pull on the wires to separate the connectors.

Problem

 

Possible Cause

 

Corrective Action

 

 

 

 

 

Starter does not crank

1.

PTO is engaged.

1.

Disengage the PTO.

 

2.

Parking brake is not.

2.

Set the parking brake.

 

3.

Drive levers are not in neutral lock

3.

Ensure the drive levers are in the neutral

 

 

position.

 

lock position.

 

4.

Battery does not have a full charge.

4.

Charge the battery.

 

5.

Electrical connections are corroded, loose

5.

Check the electrical connections for

 

 

or faulty.

 

good contact. Clean connector terminals

 

 

 

 

thoroughly with electrical contact cleaner,

 

 

 

 

apply dielectric grease and reconnect.

 

6.

Fuse is blown.

6.

Replace the blown fuse.

 

7.

Relay or switch is defective.

7.

Contact an Authorized Service Dealer.

 

 

 

 

 

Engine will not start, starts hard, or fails to

1.

Fuel tank is empty.

1.

Fill the fuel tank.

keep running

2.

Fuel shutoff valve is closed.

2.

Open the fuel shutoff valve.

 

 

3.

Oil level in the crankcase is low.

3.

Add oil to the crankcase.

 

4.

The throttle and choke are not in the

4.

Be sure the throttle control is midway

 

 

correct position.

 

between the “SLOW” and “FAST”

 

 

 

 

positions, and the choke is in the “ON”

 

 

 

 

position for a cold engine or the “OFF”

 

 

 

 

position for a warm engine.

 

5.

Dirt in fuel filter.

5.

Replace the fuel filter.

 

6.

Dirt, water, or stale fuel is in the fuel

6.

Contact an Authorized Service Dealer.

 

 

system.

 

 

 

7.

Air cleaner is dirty.

7.

Clean or replace the air cleaner element.

 

8.

Electrical connections are corroded, loose

8.

Check the electrical connections for

 

 

or faulty.

 

good contact. Clean connector terminals

 

 

 

 

thoroughly with electrical contact cleaner,

 

 

 

 

apply dielectric grease and reconnect.

 

9.

Relay or switch is defective.

9.

Contact an Authorized Service Dealer.

 

10.

Faulty spark plug.

10.

Clean, adjust or replace spark plug.

 

11.

Spark plug wire is not connected.

11.

Check the spark plug wire connection.

 

 

 

 

 

Engine loses power

1.

Engine load is excessive

1.

Reduce the ground speed.

 

2.

Air cleaner is dirty.

2.

Clean or replace the air cleaner element.

 

3.

Oil level in the crankcase is low.

3.

Add oil to the crankcase.

 

4.

Cooling fins and air passages for the

4.

Remove the obstructions from the cooling

 

 

engine are plugged.

 

fins and air passages.

 

5.

Vent hole in the fuel cap is plugged.

5.

Clean or replace the fuel cap.

 

6.

Dirt in fuel filter.

6.

Replace the fuel filter.

 

7.

Dirt, water, or stale fuel is in the fuel

7.

Contact an Authorized Service Dealer.

 

 

system.

 

 

 

 

 

 

 

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Contents Frontrunnertm 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 109-2355 109-2356 109-2358 109-2377 109-2396 109-7413 116-1003 109-2360 Specifications Model NumbersSystems Hydrostatic Ground Drive System Tires & WheelsCutting Deck Torque Requirements DimensionsProduct Overview OperationControls Pre-Start Starting the Engine Operating InstructionsRaise the Rollover Protection System Rops Open the Fuel Shut-Off ValveDriving the Machine Disengaging the PTOStopping the Engine Transporting a Unit TransportingLoading a Unit Recommended Maintenance Schedules MaintenanceCheck Engine Oil Level Check Battery ChargeEngine must initiate shutdown Check Safety Interlock SystemCheck for Loose Hardware Check Rollover Protections Systems Roll Bar PinsService Air Cleaner Check Seat BeltLubricate Grease Fittings Check Auxiliary Hydraulic Oil LevelCheck Tire Pressures Check Condition Of BeltsPumps Places Lubricate Rear Caster Wheel HubsLubricate Motion Control Bronze Bushings Lubricate Motion Control ShaftLubricate Brake Handle Pivot Lubricate Brake Rod BushingsThread Locking Adhesives Fuel Tank Mounting Hardware SpecificationsChange Hydraulic System Filter Check Wheel Hub LocknutsPump Drive Belt Tension Pump Drive Belt ReplacementPark Brake Adjustment Dielectric GreaseMotion Control Linkage Adjustment Weight Transfer Spring Adjustment Clutch Shim Caster Pivot Bearings Pre-Load AdjustmentFeeler gauge Brake mounting bolt Clean Engine Cooling System CleaningMotor Oil Disposal Remove Engine Shrouds and Clean Cooling FinsBattery Disposal Waste DisposalProblem Possible Cause Corrective Action TroubleshootingTroubleshooting Ignition Switch Schematics31HP Ignition SwitchBlack / Grey Rown B Electrical Logic Schematic 27HP KohlerViolet Electrical Logic Schematic 31HP Briggs & StrattonHydraulic Diagram Exmark Commercial Turf Equipment Page Page Service Record Page Page See EXMARK’S Complete Line of Accessories and Options