Troubleshooting. Exmark TTS16KA483CA, TTS16KA363CA, TTS20KAE483, TTS18KA523, TTS16KA363, TTS20KAE523, TTS16KA483, TTS20KAE483CA

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Troubleshooting. Exmark TTS16KA483CA, TTS16KA363CA, TTS20KAE483, TTS18KA523, TTS16KA363, TTS20KAE523, TTS16KA483, TTS20KAE483CA | 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 adjustments 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 (Electric Start Units).

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

Engine loses power or faulty.

Possible Cause

1. PTO is engaged.

2. Speed control lever is are not in neutral lock position.

3. OPC levers are released.

4. Battery does not have a full charge.

5. Electrical connections are corroded, loose

6. Fuse is blown.

7. Relay or switch is defective.

1. Fuel tank is empty.

2. Fuel shutoff valve is closed.

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

Corrective Action

1. Disengage the PTO.

2. Ensure the speed control lever is in the neutral lock position.

3. Depress OPC levers.

4. Charge the battery. See Check

Battery Charge and Recommended

Jump Starting Procedure sections in

Maintenance.

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. 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.

4. Replace the fuel filter.

5. Contact an Authorized Service Dealer.

4. Dirt in fuel filter.

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

6. Air cleaner is dirty.

7. Electrical connections are corroded, loose or faulty.

8. Relay or switch is defective.

9. Faulty spark plug.

10. 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.

6. Clean or replace the air cleaner element.

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

8. Contact an Authorized Service Dealer.

9. Clean, adjust or replace spark plug.

10. 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.

39

Troubleshooting

Engine overheats

Problem

Mower pulls left or right (with levers fully forward).

Machine does not drive.

Uneven cutting height.

Abnormal vibration

Blades do not rotate.

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.

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 by turning knob on the right hydro control linkage in the direction that the mower needs to be adjusted to.

Turn the knob in 1/4 turn increments until the mower tracks correctly.

2. Adjust tire pressure in the drive tires.

2. Tire pressure in drive tires not correct.

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.

1. Blade(s) not sharp.

2. Cutting blade(s) is/are bent.

3. Mower deck is not level.

4. Underside of mower is dirty.

5. Tire pressure in drive tires not correct.

6. Blade spindle bent.

7. Tips of adjacent blades are at an uneven cutting height. Blades tips should be even within 3/16 inch which is approximately one blade thickness.

1. Drive belt is worn, loose or broken.

2. Drive belt is off pulley.

3. Deck belt is worn, loose or broken.

4. Deck belt is off pulley.

5. Broken or missing idler spring.

6. PTO clutch does not engage.

1. Tighten the bypass valve.

2. Change the belt.

3. Change the belt.

1. Sharpen the blade(s).

2. Install new cutting blade(s).

3. Level mower deck from side-to-side and front-to-rear.

4. Clean the underside of the mower.

5. Adjust tire pressure in the drive tires.

6. Contact an Authorized Service Dealer.

7. Replace blades, spindles and (or) check for damage to mower deck.

1. Cutting blade(s) is/are bent or unbalanced.

1. Install new cutting blade(s).

2. Blade mounting bolt is loose.

3. Engine mounting bolts are loose.

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

5. Engine pulley is damaged.

6. Blade spindle is bent.

7. Belt is damaged.

2. Tighten the blade mounting bolt.

3. Tighten the engine mounting bolts.

4. Tighten the appropriate pulley.

5. Contact an Authorized Service Dealer.

6. Contact an Authorized Service Dealer.

7. Install new belt.

1. Check the belt tension.

2. Check belt for damage; replace if necessary. Install drive belt and check adjusting shafts and belt guides for correct position.

3. Install new deck belt.

4. Install deck pulley and check the idler pulley, idler arm and spring for correct position and function.

5. Replace the spring.

6. Contact an Authorized Service Dealer.

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