Troubleshooting - Husqvarna 439 Manuel D'utilisation

b) Turn the adjustment screw counterclockwise to
increase the chain oil flow.
Air cleaning system
™
AirInjection is a centrifugal air cleaning system that
removes dust and dirt before the particles are caught by
the air filter. AirInjection
and the engine.
The engine does not start
Product part to examine
Starter pawls
Fuel tank
32
™
extends the life of the air filter

Troubleshooting

Possible cause
The starter pawls are blocked.
Incorrect fuel type.
The fuel tank is filled with chain oil.
Cooling system
The cooling system keeps the engine temperature
down. The cooling system includes the air intake on the
starter (1) and the air guide plate (2), the pawls on the
flywheel (3), the cooling fins on the cylinder (4) and the
cylinder cover (5).
4
1
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION: A dirty or blocked cooling system
can make the product too hot, which can
cause damage to the product.
Action
Adjust or replace the starter pawls.
Clean around the pawls.
Speak to an approved service work-
shop.
Drain the fuel tank and fill with cor-
rect fuel.
If you have tried to start the product,
speak to your servicing dealer. If you
have not tried to start the product,
drain the fuel tank.
3
2
823 - 006 - 18.09.2019
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