TROUBLESHOOTING GUIDE

 

Problem

Cause

 

 

 

 

 

 

 

The engine seems weak.

Clogged air filter.

 

 

 

Fouled spark plugs.

 

 

 

Carburetor incorrectly adjusted.

 

 

 

 

 

 

 

The engine overheats.

Clogged air intake or cooling fins.

 

 

 

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.

 

 

 

 

 

 

 

Battery not charging.

Poor contact with battery terminal cable

 

 

 

 

connectors.

 

 

 

 

 

 

 

The machine moves slowly, unevenly, or not at all.

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.

 

 

 

 

 

 

 

Mower deck not engaging.

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.

 

 

 

 

 

 

 

Transaxle leaks oil.

Damaged seals, housing, or gaskets.

 

 

 

• Air trapped in hydraulic system.

 

 

 

 

 

 

 

Uneven mowing results.

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 machine vibrates.

The blades are loose.

 

 

 

• The blades are incorrectly balanced.

 

 

 

• The engine is loose.

 

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Husqvarna LZ5227, LZ6130, LZ7230, LZ6127, LZ6130C, LZ7230C, LZ30, LZ30C manual English-58