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TROUBLESHOOTING GUIDE
Problem Cause
Machine vibrates • Blades are loose
• Blades are incorrectly balanced
• Engine is loose
Engine overheats
•
Clogged air intake or cooling fins
•
Engine overloaded
•
Poor ventilation around engine
•
Defective engine speed regulator
•
Too little or no oil in the engine
•
Fouled spark plug
Battery not charging
•
Poor contact with battery terminal cable connectors
•
Charging lead is disconnected
•
Fault in engine charging system
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 loosened
•
Blade switch is faulty or has come loose from the cable contact
•
Fuse has blown
Hydraulic drive leaks oil
•
Damaged seals, housing, or gaskets
•
Air trapped in hydraulic system
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
• Grass is too long
• Grass collected under the mower deck