TROUBLESHOOTING
Problem
Cause
Engine seems weak
•
Clogged air filter
Fouled spark plugs
Carburetor incorrectly adjusted
Engine overheats
Clogged air intake or cooling fins
Engine overloaded
•
Poor ventilation around engine
•
Defective engine speed regulator
•
Soot in the combustion chamber
•
Too little or no oil in the engine
Fouled spark plug
Battery not charging
•
Poor contact with battery terminal cable connectors.
Machine moves slowly, unevenly, or not at all
•
Parking brake on
Hydraulic pump bypass linkage engaged
•
Drive belt for the transmission gears slack or has come off
•
Defective hydraulic system
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
Uneven mowing results
•
Different air pressure in the tires on 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
Machine vibrates
Blades are loose
•
Blades are incorrectly balanced
Engine is loose
44