Troubleshooting. Exmark QUEST QZS708GEM50200


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Troubleshooting. Exmark QUEST QZS708GEM50200 | 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

The engine overheats.

The starter does not crank

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

Possible Cause Corrective Action

1. The engine load is excessive.

1. Reduce ground speed.

2. The oil level in the crankcase is low.

3. The cooling fins and air passages under the engine blower housing are plugged.

2. Add oil to the crankcase.

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

4. The air cleaner is dirty.

4. Clean or replace the air cleaner element.

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

5. Contact an Authorized Service Dealer.

1. The blade control switch is engaged.

2. Parking brake is not engaged.

3. The motion control levers are not in the neutral lock position.

4. The operator is not seated.

5. Battery does not have a full charge.

6. The electrical connections are corroded or loose.

7. A fuse is blown.

8. A relay or switch is damaged.

1. Fuel tank is empty.

2. The choke is not on.

3. The air cleaner is dirty.

4. The spark plug wire(s) is loose or disconnected.

5. The spark plug(s) is pitted, fouled, or the gap is incorrect.

6. There is dirt in fuel filter.

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

8. There is incorrect fuel in the fuel tank.

9. The oil level in the crankcase is low.

1. Move the blade control switch to disengaged.

2. Set the parking brake.

3. Move the motion control levers outward to the neutral lock position.

4. Sit on the seat.

5. Charge the battery. See Check Battery

Charge and Recommended Jump

Starting Procedure sections in

Maintenance.

6. Check the electrical connections for good contact.

7. Replace the fuse.

8. Contact an Authorized Service Dealer.

1. Fill the fuel tank.

2. Move the choke lever to On (if applicable).

3. Clean or replace the air cleaner element.

4. Install the wire(s) on the spark plug.

5. Install a new, correctly gapped spark plug(s).

6. Replace the fuel filter.

7. Contact an Authorized Service Dealer.

8. Drain the tank and replace the fuel with the proper type.

9. Add oil to the crankcase.

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Troubleshooting

Problem

Engine loses power

The machine does not drive.

Abnormal vibration

Uneven cutting height.

Blades do not rotate.

Possible Cause Corrective Action

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. The spark plug(s) is pitted, fouled, or the gap is incorrect.

6. Dirt in fuel filter.

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

8. There is incorrect fuel in the fuel tank.

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. Install a new, correctly gapped spark plug(s).

6. Replace the fuel filter.

7. Contact an Authorized Service Dealer.

8. Drain the tank and replace the fuel with the proper type.

1. The drive belts are worn, loose, or broken.

1. Contact an Authorized Service Dealer.

2. The drive belts are off of the pulleys.

3. The drive is in bypass mode.

2. Contact an Authorized Service Dealer.

3. Take machine out of bypass mode. Refer to Pushing the Machine by Hand section.

1. Engine mounting bolts are loose.

1. Tighten the engine mounting bolts.

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

2. Tighten the appropriate pulley.

3. Engine pulley is damaged.

3. Contact an Authorized Service Dealer.

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

4. Install new cutting blade(s).

5. Blade is loose.

6. Blade spindle is bent.

5. Tighten the blade mounting bolt and inspect the blade spring disc washer for damage (See Servicing the Cutting

Blades section).

6. Contact an Authorized Service Dealer.

1. Blade(s) not sharp.

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

3. A blade is loose.

4. Mower deck is not level.

5. An anti-scalp wheel is not set correctly

6. Underside of mower is dirty.

7. Tire pressure in drive tires not correct.

8. Blade spindle bent.

1. Sharpen the blade(s).

2. Install new cutting blade(s).

3. Tighten the blade mounting bolt and inspect the blade spring disc washer for damage (See Servicing the Cutting

Blades section).

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

5. Adjust the anti-scalp wheel height.

6. Clean the underside of the mower.

7. Adjust tire pressure.

8. Contact an Authorized Service Dealer.

1. Drive belt is worn, loose or broken.

1. Install new drive belt.

2. Drive belt is off pulley.

2. Install drive belt and check adjusting shafts and belt guides for correct position.

3. The mower belt is worn, loose, or broken.

3. Install a new mower belt.

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Key Features

  • 708cc Kawasaki engine delivers reliable power and performance
  • 50" cutting deck with 3 blades provides a wide cutting path for increased productivity.
  • Hydrostatic drive system offers precise control and smooth operation
  • Adjustable seat with armrests ensures operator comfort during extended mowing sessions.
  • High-back seat provides lumbar support and reduces operator fatigue.
  • Electric blade engagement for easy and convenient blade activation
  • Large fuel tank allows for extended mowing time without frequent refueling
  • Hour meter tracks operating time for maintenance scheduling and warranty purposes.

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Frequently Answers and Questions

What type of engine does the Exmark QUEST QZS708GEM50200 have?
It has a 708cc Kawasaki engine.
How wide is the cutting deck?
The cutting deck is 50 inches wide.
Does the mower have a hydrostatic drive system?
Yes, it has a hydrostatic drive system for precise control and smooth operation.
Is the seat adjustable?
Yes, the seat is adjustable with armrests for operator comfort.
How long can I mow before refueling?
The large fuel tank allows for extended mowing time without frequent refueling.
How do I activate the blades?
The blades are activated by an electric blade engagement system for easy and convenient operation.
What is the purpose of the hour meter?
The hour meter tracks operating time for maintenance scheduling and warranty purposes.

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