Exmark PNS24KA523, PNS20KA443 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 engaged.

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. See Check

 

 

 

 

Battery Charge and Recommended

 

 

 

 

Jump Starting Procedure sections in

 

 

 

 

Maintenance.

 

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.

 

8.

Faulty module.

8.

Replace module.

 

 

 

 

 

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.

Seat switch is not functioning properly.

8.

Check the seat switch indicator. Replace

 

 

 

 

seat if needed.

 

9.

Electrical connections are corroded, loose

9.

Check the electrical connections for

 

 

or faulty.

 

good contact. Clean connector terminals

 

 

 

 

thoroughly with electrical contact cleaner,

 

 

 

 

apply dielectric grease and reconnect.

 

10.

Relay or switch is defective.

10.

Contact an Authorized Service Dealer.

 

11.

Faulty spark plug.

11.

Clean, adjust or replace spark plug.

 

12.

Spark plug wire is not connected.

12.

Check the spark plug wire connection.

 

13.

Faulty module.

13.

Replace module.

 

 

 

 

 

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Contents Pioneer S-SERIES California Introduction Contents Training SafetySafety Alert Symbol Safe Operating PracticesSafety Slope Operation OperationMaintenance and Storage Using the Rollover Protection System RopsSafety Safety Safety and Instructional Decals 109-6014 116-1119 107-2102 116-1121 116-3303 116-4465 116-4430 Model Numbers SpecificationsSystems Cutting Deck DimensionsHydrostatic Ground Drive System Tires & WheelsTorque Requirements Motion Control Levers Product OverviewOperation ControlsBrake Lever Ignition Switch Fuel Shut-Off ValveThrottle Control Hour MeterDrive Wheel Release Valves PTO Engagement SwitchTransport Lock Pre-StartOperating Instructions Deck Lift PedalStarting the Engine Open the Fuel Shut-Off ValveEngaging the PTO Stopping the Engine Disengaging the PTODriving the Machine Adjusting the Anti-Scalp Rollers Adjusting the Cutting HeightTransporting a Unit TransportingLoading a Unit Operation Recommended Maintenance Schedules MaintenanceRecommended Jump Starting Procedure Check Battery ChargeCheck Engine Oil Level Check Mower Blades Do Not jump start a weak battery if these conditions existCheck 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 FittingsChange Fuel Filter Check Spark PlugsChange Hydraulic System Filter and Fluid Check Spark Arrester if equipped Deck Leveling Thread Locking AdhesivesCopper-Based Anti-seize Dielectric GreaseInch Deck Adjusting the Blade SlopePump Drive Belt Tension Adjusting the Parking BrakeDeck Belt Tension Full Forward Tracking Adjustment Motion Control Handle AdjustmentMotion Control Linkage Adjustment Adjusting the Seat Ride Suspension Removing the Shim Electric Clutch AdjustmentRemove Engine Shrouds and Clean Cooling Fins Clean Engine and Exhaust System AreaClean Hydro Fan Cooling Fins Waste Disposal Clean Debris From MachineClean Grass Build-Up Under Deck Battery DisposalProblem Possible Cause Corrective Action TroubleshootingSee Drive Wheel Release Valves section Electrical Diagram SchematicsElectrical Logic Schematic Pioneer S-Series Turf Equipment 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