Problem
Machine vibrates
Engine overheats
Battery not charging
Machine moves slowly, unevenly,
or not at all
Mower deck not engaging
Hydraulic drive leaks oil
Uneven mowing results
TROUBLESHOOTING GUIDE
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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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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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Poor contact with battery terminal cable connectors
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Charging lead is disconnected
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Parking brake on
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Bypass valve on pump open
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Drive belt for the transmission gears slack or has come off
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Air in hydraulic system
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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 cable contact
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Fuse has blown
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Damaged seals, housing, or gaskets
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Air trapped in hydraulic system
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Cause
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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