Troubleshooting. Exmark Frontrunner Series, Frontrunner FR27KC, 720000 & Higher, Frontrunner FR31BV, 000 & Higher Serial Nos., Frontrunner 720,000 & Higher Serial Nos., Frontrunner FR23KC

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Troubleshooting. Exmark Frontrunner Series, Frontrunner FR27KC, 720000 & Higher, Frontrunner FR31BV, 000 & Higher Serial Nos., Frontrunner 720,000 & Higher Serial Nos., Frontrunner FR23KC | Manualzz

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

Starter does not crank

Engine will not start, starts hard, or fails to keep running

Engine loses power

Possible Cause

1. PTO is engaged.

2. Parking brake is not.

3. Drive levers are not in neutral lock position.

4. Battery does not have a full charge.

5. Electrical connections are corroded, loose or faulty.

6. Fuse is blown.

7. Relay or switch is defective.

1. Fuel tank is empty.

2. Fuel shutoff valve is closed.

3. Oil level in the crankcase is low.

4. The throttle and choke are not in the correct position.

5. Dirt in fuel filter.

6. Dirt, water, or stale fuel is in the fuel system.

7. Air cleaner is dirty.

8. Electrical connections are corroded, loose or faulty.

Corrective Action

1. Disengage the PTO.

2. Set the parking brake.

3. Ensure the drive levers are in the neutral lock position.

4. Charge the battery.

5. Check the electrical connections for good contact. Clean connector terminals thoroughly with electrical contact cleaner, apply dielectric grease and reconnect.

6. Replace the blown fuse.

7. Contact an Authorized Service Dealer.

1. Fill the fuel tank.

2. Open the fuel shutoff valve.

3. Add oil to the crankcase.

4. Be sure the throttle control is midway 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. Replace the fuel filter.

6. Contact an Authorized Service Dealer.

9. Relay or switch is defective.

10. Faulty spark plug.

11. Spark plug wire is not connected.

1. Engine load is excessive

2. Air cleaner is dirty.

3. Oil level in the crankcase is low.

4. Cooling fins and air passages for the engine are plugged.

5. Vent hole in the fuel cap is plugged.

6. Dirt in fuel filter.

7. Dirt, water, or stale fuel is in the fuel system.

7. Clean or replace the air cleaner element.

8. Check the electrical connections for good contact. Clean connector terminals thoroughly with electrical contact cleaner, apply dielectric grease and reconnect.

9. Contact an Authorized Service Dealer.

10. Clean, adjust or replace spark plug.

11. Check the spark plug wire connection.

1. Reduce the ground speed.

2. Clean or replace the air cleaner element.

3. Add oil to the crankcase.

4. Remove the obstructions from the cooling fins and air passages.

5. Clean or replace the fuel cap.

6. Replace the fuel filter.

7. Contact an Authorized Service Dealer.

36

Troubleshooting

Engine overheats

Problem

Mower pulls left or right (with levers fully forward)

Machine does not drive

Abnormal vibration

Possible Cause

1. Engine load is excessive

2. Oil level in the crankcase is low.

3. Cooling fins and air passages for the engine are plugged.

1. Tracking needs adjustment

2. Tire pressure in drive tires not correct.

3. Reverse indicator and motion control linkage need adjustment.

1. Bypass valve is not closed tight.

2. Drive or pump belt is worn, loose or broken.

3. Drive or pump belt is off a pulley.

4. Broken or missing idler spring.

5. Hydraulic fluid level is low or too hot.

1. Engine mounting bolts are loose.

2. Loose engine pulley, idler pulley, or blade pulley.

3. Engine pulley is damaged.

Corrective Action

1. Reduce the ground speed.

2. Add oil to the crankcase.

3. Remove the obstructions from the cooling fins and air passages.

1. Adjust the tracking.

2. Adjust tire pressure in the drive tires.

3. Adjust the reverse indicator and the motion control linkage.

1. Tighten the bypass valve.

2. Change the belt.

3. Change the belt.

4. Replace the spring.

5. Add hydraulic fluid to reservoir or let it cool down.

1. Tighten the engine mounting bolts.

2. Tighten the appropriate pulley.

3. Contact an Authorized Service Dealer.

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