Husqvarna 966503401, Operator'S Manual

Page: 46 / 60

46
TRoUBlESHooTING
Problem Cause
Engine will not start Blade switch is engaged. •
Steering controls are not locked in the neutral position •
Parking brake is not activated •
Battery is dead •
Contamination in the carburetor or fuel line. •
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 •
Starter does not turn the engine over Battery is dead •
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”
Engine runs rough faulty carburetor •
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 fuel •
Clogged air filter •
Engine seems weak Clogged air filter •
fouled spark plugs •
Carburetor incorrectly adjusted •
Air trapped in hydraulic system •
machine vibrates Blades are loose •
Blades are incorrectly balanced •
Engine is loose •