Husqvarna Z146 Owner Manual - Page 30
TROUBLESHOOTING, Problem / Cause
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TROUBLESHOOTING Problem / Cause Engine will not start Blade switch is engaged Steering controls are not locked in the outer position Dead battery Contamination in the carburetor or fuel line Fuel supply shutoff valve is closed or in the wrong position Clogged fuel filter or fuel line Ignition system faulty Starter does not turn the engine over Dead battery Battery terminal cable contacts are defective Blown fuse Fault in the starter safety circuit. See Safety System in the Maintenance Section Engine runs rough Faulty carburetor Clogged fuel filter or jet Throttle lever in the Cold Weather starting position Clogged ventilation valve on the fuel cap Fuel tank almost 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 the hydraulic system Machine vibrates Blades are loose Blades are incorrectly balanced Engine is loose Engine overheats Clogged air intake or cooling fins Engine overloaded Inadequate ventilation around engine Defective engine speed regulator Too little or no oil in the engine Contamination in the fuel line Fouled spark plugs Battery not charging Battery terminal cable contacts are defective Charging lead is disconnected Mower moves slowly, unevenly, or not at all Bypass linkages are engaged Transmission drive belt is slack or off Air trapped in the hydraulic system Mower deck not engaging Drive belt for the mower deck is loose Electromagnetic coupling contact is loose Blade switch is faulty or loose from cable contact Blown fuse Transaxle leaks oil Damaged seals, housing or gaskets Air trapped in the hydraulic system Uneven mowing results Unequal air pressures in the tires Bent blades Suspension for the mower deck is uneven Blades are dull Driving speed is too high Grass is too long Grass collected below the mower deck 30