Exmark FrontRunner Diesel Operator's Manual page 39

Problem
Engine overheats.
Mower pulls left or right (with levers fully
forward).
Machine does not drive.
Abnormal vibration.
Warning buzzer emits continuous beep. (See
also Engine overheats).
Warning buzzer emits intermittent beep.
Possible Cause
1. Engine load is excessive.
2. Oil level in the crankcase is low.
3. Dirty air filter.
4. Coolant level is low.
5. Debris on or around radiator.
6. Water pump or alternator belt is worn,
loose, or broken.
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.
1. Temperature is increasing on coolant
temperature gauge.
2. Coolant level is low.
3. Debris on or around radiator.
4. Water pump or alternator belt is worn,
loose or broken.
1. Oil level is low.
2. Oil leaking from engine.
39
Troubleshooting
Corrective Action
1. Reduce the ground speed.
2. Add oil to the crankcase.
3. Clean or replace the air cleaner element.
4. Add coolant.
5. Remove debris.
6. Contact an Authorized Service Dealer.
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.
1. Turn unit off and allow engine and engine
components to cool.
2. Add coolant.
3. Remove debris.
4. Contact Authorized Service Dealer.
1. Check oil level.
2. Contact Authorized Service Dealer.