Troubleshooting - Husqvarna W548 Manuel D'utilisation

TROUBLESHOOTING

Problem / Cause
Engine will not start
Blade switch is engaged
Steering controls are not in the neutral position
Dead battery
Contamination in the carburetor or fuel line
Choke is maladjusted
Blown fuse
Fuel is stale
Spark plug is loose, disconnected or
incorrectly gapped
Clogged air filter
Fuel tank is empty
Clogged fuel filter or fuel line
Faulty relay or connection
Battery terminal cable contacts are defective
Fault in the starter safety circuit. See Safety
System in the Maintenance Section
Engine runs rough
Faulty carburetor
Clogged fuel filter
Choke adjusted incorrectly
Clogged ventilation on the fuel cap
Fuel tank nearly empty
Fouled or incorrectly gapped spark plugs
Rich fuel mixture or fuel-air mixture.
Fuel is stale
Water in fuel
Clogged air filter
Engine lacks power
Clogged air filter
Fouled spark plugs
Clogged fuel filter
Wrong fuel type
Machine vibrates
Blades are loose or incorrectly balanced
Loose or damaged electric blade switch
Engine is loose
Engine speed too slow
Deck or pump drive belts worn or damaged
Loose hardware
28
Engine overheats
Clogged air intake or cooling fins
Operating too fast ground speed for conditions
Operating at slow idle
Defective engine speed regulator
Too little or no oil in the engine
Poor ventilation around engine
Fouled spark plugs
Battery not charging
Battery terminal cable contacts are defective
Charging lead is disconnected
Mower moves slowly, unevenly, or not at all
Park brake engaged
Bypass valves open
Transmission drive belt is slack or off
Hydraulic oil level is cold or low
Air trapped in hydraulic system
Mower deck not engaging
Deck drive belt is loose or defective
Electrical connections are loose
Blade switch is faulty or loose from cable
contact
Blown fuse or faulty relay
Transaxle leaks oil
Damaged seals, housing, or gaskets
Air trapped in hydraulic system
Uneven mowing results
Unequal air pressures in tires
Bent blades
Suspension for the mower deck is uneven
Blades are dull
Operating speed too high
Grass is too long
Grass has collected under the mower deck