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TROUBLESHOOTING
English-55
Problem Cause
The engine will not start. • The blade switch is engaged.
• The steering controls are not locked in the neutral
position.
• The driver is not sitting in the driver’s seat.
• The parking brake is not activated.
• The battery is dead.
• Contamination in the carburetor or fuel line.
• The fuel supply is closed or the shutoff valve for the fuel
tank is in the wrong position.
• Clogged fuel lter or fuel line.
• Ignition system faulty.
The starter does not turn the engine over. • Dead battery.
• Poor contact of the battery terminal cable connections.
• Blown fuse.
• Fault in the starter safety circuit.
See Checking the Safety System in the “Maintenance
Section”
The engine runs rough. • Faulty carburetor.
• The choke control is pulled out with a warm engine.
• Clogged fuel lter or jet.
• Clogged ventilation valve on the fuel cap.
• Fuel tank nearly empty.
• Fouled spark plugs.
• Rich fuel mixture or fuel-air mixture.
• Wrong fuel type.
• Water in the fuel.
• Clogged air lter.
The engine seems weak. • Clogged air lter.
• Fouled spark plugs.
• Carburetor incorrectly adjusted.
• Air trapped in hydraulic system.
The machine vibrates. • The blades are loose.
• The blades are incorrectly balanced.
• The engine is loose.