Worldlawn KINGCOBRA WYK52ECV7495CA, Operator'S Manual, Page: 41 / 48

41
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE
Engine seems weak
•
Clogged air filter
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Fouled spark plugs.
•
Carburetor incorrectly adjusted
Machine vibrates.
•
Blades are loose.
•
Blades are incorrectly balanced.
•
Engine is loose.
Engine overheats.
•
Clogged air intake or cooling fins.
•
Engine overloaded.
•
Poor ventilation around engine.
•
Defective engine speed regulator.
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Too little or no oil in the engine.
•
Fouled spark plug.
Batter not charging.
•
Poor contact with battery terminal cable
connectors.
•
Charging lead is disconnected.
Machine moves slowly, unevenly, or not at all.
•
Parking brake on.
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Bypass valve on pump open.
•
Drive belt for the transmission is slack or has
come off.
•
Air in hydraulic system.
Mower deck not engaging.
•
Drive belt for the mower deck has come loose.
•
Electric connection to clutch has loosened.
•
Blade switch is faulty or has come loose from
the cable contact.
•
Fuse has blown.
Hydraulic drive leaks oil.
•
Damaged seals, housing, or gaskets.
•
Air trapped in hydraulic system.
Uneven mowing results.
•
Unequal tire pressure on the left and right
sides.
•
Bent blades.
•
Suspension for the mower deck is uneven.
•
Blades are dull.
•
Driving speed too high.
•
Grass is too long.
•
Grass collected under the mower deck.