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Problem / Cause
Engine overheats
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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
Battery not charging
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Poor contact with battery terminal cable connectors
Machine moves slowly, unevenly, or not at all
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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 come off
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Defective hydraulic system
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Air in hydraulic system
Mower deck not engaging
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Drive belt for the mower deck has come loose
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Contact for the electromagnetic coupling has loosened
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Blade switch is faulty or has come loose from the cable contact
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Fuse has blown
Uneven mowing results
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Different air pressure in the tires on left and right 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
Machine vibrates
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Blades are loose
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Blades are incorrectly balanced
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Engine is loose
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TROUBLESHOOTING
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