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Trouble Shooting Guide
Chapter 8: Trouble Shooting Guide
Check the machine refer to this guide before contacting your service workshop.
Problem Cause
The engine will not start. • Fuel tank empty
• Incorrect fuel type
• Air in fuel system
• The glow plug system is not working (Fuse FU7)
• Serious engine damage
Starter does not turn the engine • Glow plugs do not heat up
• The pedals are affected
• Brake not applied
• Hydrostat pedals not in the neutral position
• Discharged battery
• Poor contact affecting the battery terminal cable
connections, starter switch, or starter motor
• Blown fuse on or by the battery (check 3)
• Defective starter switch
• Faulty starter
The engine runs erratically • Air in fuel system
• Defective excess flow valve
• Blocked fuel filter
• Low feed pressure
• Clogged air filter
• Blocked fuel tank ventilation
• Disconnected fuel line (diffuser jet)
• Defective injector
• Defective injection pump
• Defective feed pump
• Incorrect fuel type
• Serious engine damage
Abnormal exhaust smoke • Black smoke:
Incorrect fuel quantity from injection pump
Defective injector
Incorrect timing of injection pump
Clogged air filter
• Blue smoke:
Engine oil level too high
Serious engine damage
• White smoke:
Defective cylinder head gasket
Cracked cylinder head
Engine oil level too high
