Table of Contents
Section 7: Troubleshooting
Symptoms | Probable Causes | Suggested Remedies | |
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Starting motor does not crank | Control arms are not in park position | Place control arms in neutral and full | |
| or park switch is out of adjustment | out. | |
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| Blade Engagement switch is engaged | Disengage blade switch | |
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| Weak or dead battery | Recharge or replace | |
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| For additional causes | See engine manual | |
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Engine cranks but does not start | No fuel in fuel tank | Fill fuel tank | |
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| Fuel tank valve turned to “OFF” | Select a fuel tank with gasoline | |
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| See Figure | |
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| Fuel tank valve turned to an empty | Switch Left/Right tank valve | |
| tank | See Figure | |
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| Fuel filter or fuel line is plugged | Replace fuel filter or fuel line | |
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| Numerous | See engine manual | |
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Engine: | Numerous | See engine manual | |
Runs with continuous misfiring or |
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engine runs unevenly or erratically |
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Grass cutting is ragged or uneven | Dull, bent or broken cutting blades | Sharpen or replace cutting blades | |
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| Deck full of wet sticky grass | Clean underside of deck | |
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| Cutting Blades are not operating at full | Increase engine rpms to full speed | |
| engine speed | (3600 rpm) | |
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| Belt over center | Tension over center | |
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| Worn or broken belt | Replace worn and broken belts | |
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| Deck is not level | Check air pressure in all 4 tires | |
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| Make level adjustments to the deck | |
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Loss of power or system will not operate | Bypass valve rods are disengaged | Engage bypass valve rods | |
in either direction |
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Linkage bolt is loose or lost | Replace linkage bolt | ||
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| Bad pump belt and/or idler pulley | Replace belt and/or idler pulley | |
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| Tighten idler pulley if loose | |
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| Loose or lost idler pulley bolt | Retention idler pulley and retighten or | |
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| replace idler bolt | |
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| Restrictions in air cleaner | Service air cleaner | |
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| Internal interference or leakage in | See your dealer | |
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| Insufficient hydraulic oil supply | Have dealer check | |
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| Poor compression | See your dealer | |
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| Steering linkage needs adjustment | Adjust linkage | |
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| Air in system | Check filter & fittings | |
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| For additional causes | See engine manual | |
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Overheating | Air intake screen or cleaning fins | Clean screen and fin | |
| clogged |
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| Not operating engine at rated speed | Increase engine speed to 3600 rpm | |
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| For additional causes | See engine manual | |
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46 Z44 & Z52 (S/N 526171 & Above) Zero Turning Radius Mowers Riding Mowers | 1/12/09 |