Husqvarna LZ30, LZ30C Operator's Manual page 58

Problem
The engine seems weak.
The engine overheats.
Battery not charging.
The machine moves slowly, unevenly, or not at all.
Mower deck not engaging.
Transaxle leaks oil.
Uneven mowing results.
The machine vibrates.
58
-
English
TROUBLESHOOTING GUIDE
Cause
• Clogged air fi lter.
• Fouled spark plugs.
• Carburetor incorrectly adjusted.
• Clogged air intake or cooling fi ns.
• Engine overloaded.
• Poor ventilation around engine.
• Defective engine speed regulator.
• Soot in the combustion chamber.
• Too little or no oil in the engine.
• Fouled spark plug.
• Pre-ignition incorrect.
• Poor contact with battery terminal cable
connectors.
• Parking brake on.
• Bypass valve on pump open.
• Drive belt for the transmission gears slack or has
come off.
• Defective hydraulic system.
• Air in hydraulic system.
• Drive belt for the mower deck has come loose.
• Contact for the electromagnetic coupling has
loosened.
• The blade switch is faulty or has come loose, from
the cable contact.
• The fuse has blown.
• Damaged seals, housing, or gaskets.
• Air trapped in hydraulic system.
• Different air pressure in the tires on the left and
right sides.
• Bent blades.
• The suspension for the mower deck is uneven.
• The blades are dull.
• Driving speed too high.
• The grass is too long.
• Grass collected under the mower deck.
• The blades are loose.
• The blades are incorrectly balanced.
• The engine is loose.