Yazoo/Kees ZVKH61273 EN - Manual (Page 64)

English-
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TROUBLE SHOOTING GUIDE
• Wrong fuel type.
• Water in the fuel.
• Clogged air filter.
The engine seems weak. • Clogged air filter.
• Defective spark plugs.
• Carburetor incorrectly adjusted.
The 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.
• Defective spark plugs.
• Pre-ignition incorrect.
Battery not charging. • Poor contact with battery terminal
cable connectors.
The machine moves slowly, unevenly, • Parking brake on.
or not at all. • Bypass valve on pump open.
• Drive belt for the pump slack or
has come off.
• Defective hydraulic system.
• Air in the hydraulic system.
Mower deck not engaging. • Drive belt for the mower deck has come loose.
• Contact for the electromagnetic coupling
has loosened.
• The blade switch is faulty or has come loose
from the cable contact.
• The fuse has blown.