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PROBLEM
Engine seems weak
Machine vibrates.
Engine overheats.
Batter not charging.
Machine moves slowly, unevenly, or not at all.
Mower deck not engaging.
Hydraulic drive leaks oil.
Uneven mowing results.
TROUBLESHOOTING
POSSIBLE CAUSE
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42
Clogged air filter
Fouled spark plugs.
Carburetor incorrectly adjusted
Blades are loose.
Blades are incorrectly balanced.
Engine is loose.
Clogged air intake or cooling fins.
Engine overloaded.
Poor ventilation around engine.
Defective engine speed regulator.
Too little or no oil in the engine.
Fouled spark plug.
Poor contact with battery terminal cable
connectors.
Charging lead is disconnected.
Parking brake on.
Bypass valve on pump open.
Drive belt for the transmission is slack or has
come off.
Air in hydraulic system.
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.
Damaged seals, housing, or gaskets.
Air trapped in hydraulic system.
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.
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