Troubleshooting. Exmark LAZER Z LZX940KC726, LAZER Z LZX980KC606, Laser Z LZZ29KA606, Laser Z LZZ38KC726, Laser Z LZZ27KC606, Laser Z LZZ24KA526, Laser Z LZZ34KA726, Laser Z LZZ23KC486, Laser Z LZZ29KCE606, Laser Z LZZ34KA606


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Troubleshooting. Exmark LAZER Z LZX940KC726, LAZER Z LZX980KC606, Laser Z LZZ29KA606, Laser Z LZZ38KC726, Laser Z LZZ27KC606, Laser Z LZZ24KA526, Laser Z LZZ34KA726, Laser Z LZZ23KC486, Laser Z LZZ29KCE606, Laser Z LZZ34KA606 | 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 or faulty.

Possible Cause

1. PTO is engaged.

2. Parking brake is not engaged.

3. Drive levers are not in neutral lock position.

4. Battery does not have a full charge.

5. Electrical connections are corroded, loose

6. Fuse is blown.

7. Relay or switch is defective.

8. Faulty module.

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.

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. 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.

8. Replace module.

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.

5. Dirt in fuel filter.

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

7. Air cleaner is dirty.

8. Seat switch is not functioning properly.

9. Electrical connections are corroded, loose or faulty.

10. Relay or switch is defective.

11. Faulty spark plug.

12. Spark plug wire is not connected.

13. Faulty module.

14. MIL illuminates and blinks

7. Clean or replace the air cleaner element.

8. Check the seat switch indicator. Replace seat if needed.

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

10. Contact an Authorized Service Dealer.

11. Clean, adjust or replace spark plug.

12. Check the spark plug wire connection.

13. Replace module.

14. Contact an Authorized Service Dealer

50

Troubleshooting

Problem

Engine loses power

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. Air cleaner is dirty.

3. Oil level in the crankcase is low.

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

5. Dirt in fuel filter.

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

1. Tire pressure in drive tires not correct.

Corrective Action

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. Replace the fuel filter.

6. Contact an Authorized Service Dealer.

1. Adjust tire pressure in the drive tires.

1. Drive release handle not in “operating” position.

1. Position handle in “operating” position; see Drive Wheel Release Valves section in Operation.

2. Change the belt.

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.

3. Change the belt.

4. Replace the spring.

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

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. 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. Deck belt is worn, loose or broken.

2. Deck belt is off pulley.

3. Broken or missing idler spring.

4. Drive belt not routed correctly.

1. Install new deck belt.

2. Install belt on clutch and deck pulleys, idlers, and tensioning idler per routing decal on deck.

3. Replace the spring.

4. Refer to belt routing decal on deck.

51

Troubleshooting

Problem

Clutch will not engage.

Possible Cause

1. Fuse is blown.

2. Low voltage supply at the clutch.

3. Damaged coil.

4. Inadequate current supply.

5. Rotor/armature airgap is too large.

Corrective Action

1. Replace fuse. Check coil resistance, battery charge, charging system, and wiring connections and replace if necessary.

2. Check coil resistance, battery charge, charging system, and wiring connections and replace if necessary.

3. Replace clutch.

4. Repair or replace clutch lead wire or electrical system. Clean connector contacts.

5. Remove shim or replace clutch.

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