Trouble Shooting Guide - Husqvarna PT26 D Operator's Manual

Chapter 8: Trouble Shooting Guide
Check the machine refer to this guide before contacting your service workshop.
Problem
The engine will not start.
Starter does not turn the engine
The engine runs erratically
Abnormal exhaust smoke
Cause
• Fuel tank empty
• Incorrect fuel type
• Air in fuel system
• The glow plug system is not working (Fuse FU7)
• Serious engine damage
• 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
• 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
• 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

Trouble Shooting Guide

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