Yazoo/Kees ZELKH72270, ZELKH61250, ZELKH52250 manual Troubleshooting, Problem, Cause

TROUBLESHOOTING

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 filter 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 filter 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 filter.
The engine seems weak.	•	Clogged air filter.
	•	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.

English-55