Troubleshooting - Husqvarna P 520D Operator's Manual

Troubleshooting

If you cannot find a solution to your problems in this
manual, speak to your Husqvarna service agent.
Problem
The starter motor does not turn the
engine over
The engine does not start when the
start motor turns the engine over
The engine does not run smoothly
The engine overheats
138
Troubleshooting
Cause
The parking brake is not applied. Refer to
brake on page 122 .
There is air in the fuel system.
The main fuse is blown. Refer to
The ignition lock is defective.
The connection between the cable and the battery is bad.
The battery is too weak. Refer to
The starter motor is defective.
The PTO-button is activated.
There is no fuel in the fuel tank. Refer to
There is air in the fuel system.
The ignition cable is defective.
The engine is defective.
The fuel filter is clogged. Refer to
The air filter is clogged. Refer to
129 .
The fuel tank vent is blocked.
The feed pressure is too low.
The injector pipe is loose.
The engine is defective.
There is incorrect fuel type in the fuel tank.
The relief valve is defective.
The fuel injector is defective.
The injection pump is defective.
The feed pump is defective.
The engine is overloaded.
The coolant level is too low.
The engine oil level is too low.
The cold air intake or the cooling fins are blocked.
The air condition is defective.
To apply and release the parking
To replace a fuse on page 130 .
To charge the battery on page 131 .
To fill fuel on page 117 .
To replace the fuel filters on page 129 .
To clean and replace the air filter on page
740 - 002 -