troubleshooting guide
| Problem | Cause | ||
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Machine vibrates. | • | Blades are loose. | ||
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| • Blades are incorrectly balanced. | ||
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| • | Engine is loose. | |
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Machine backfires (propane engine only). | • | One cylinder not receiving spark. | ||
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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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| • 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. | |
• Charging lead is disconnected.
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.
•Air in hydraulic system.
Mower deck not engaging. | • | Drive belt for the mower deck has come loose. |
| • Contact for the electromagnetic coupling has | |
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| loosened. |
| • The blade switch is faulty or has come loose, from | |
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| the cable contact. |
| • The fuse has blown. | |
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Hydraulic drive leaks oil. | • | Damaged seals, housing, or gaskets. |
| • Air trapped in hydraulic system. | |
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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. | |
• The grass is too long.
• Grass collected under the mower deck.
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