TROUBLESHOOTING
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| The engine seems weak. | • | Clogged air filter. |
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| • | Fouled spark plugs. |
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| • | Carburetor incorrectly adjusted. |
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| The engine overheats. | • | Clogged air intake or cooling fins. |
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| • | Engine overloaded. |
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| • Poor ventilation around engine. |
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| • Defective engine speed regulator. |
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| • Soot in the combustion chamber. |
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| • Too little or no oil in the engine. |
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| • | Fouled spark plug. |
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| Battery not charging. | • | Poor contact with battery terminal cable |
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| connectors. |
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| The machine moves slowly, unevenly, or not at all. | • | Parking brake on. |
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| • Hydraulic pump bypass linkage engaged. |
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| • Drive belt for the transmission gears slack or has |
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| come off. |
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| • | Defective hydraulic system. |
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| • Air in hydraulic system. |
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| Mower deck not engaging. | • | Drive belt for the mower deck has come loose. |
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| • Contact for the electromagnetic coupling has |
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| loosened. |
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| • Blade switch is faulty or has come loose, from the |
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| cable contact. |
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| • | Fuse has blown. |
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| Uneven mowing results. | • | Different air pressure in the tires on left and right |
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| sides. |
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| • | Bent blades. |
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| • Suspension for the mower deck is uneven. |
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| • | Blades are dull. |
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| • Driving speed too high. |
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| • Grass is too long. |
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| • Grass collected under the mower deck. |
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| The machine vibrates. | • | Blades are loose. |
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| • Blades are incorrectly balanced. |
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| • | Engine is loose. |
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