Maintenance; Maintenance Schedule - Husqvarna 439 Manual Del Usuario

7. Make sure that the blue grommet aligns with the
snow mark.
Introduction
WARNING Read and understand the safety
chapter before you do maintenance on the
product.

Maintenance schedule

Daily maintenance
Clean the external parts of the prod-
uct and make sure that there is no oil
on the handles.
Do a check of the throttle trigger and
throttle trigger lockout. Refer to
a check of the throttle trigger and
throttle trigger lockout on page 23 .
Make sure that there is no damage
on the vibration damping units.
Clean and do a check of the chain
Maintenance and
brake. Refer to
checks of the safety devices on the
product on page 22To do a check of
the chain brake on page 23 .
Do a check of the chain catcher. Re-
To do a check of the chain
fer to
catcher on page 23 .
Turn the guide bar, do a check of the
lubrication hole and clean the groove
in the guide bar. Refer to
check of the guide bar on page 31 .
823 - 006 - 18.09.2019

Maintenance

Weekly maintenance
Clean the cooling system. Refer to
Cooling system on page 32 .
Do a check of the starter, starter rope
To do
and return spring.
Lubricate the needle bearing. Refer
to To lubricate the needle bearing on
page 31 .
Remove burrs from the edges of the
guide bar. Refer to
the guide bar on page 31 .
Clean or replace the spark arrestor
mesh on the muffler.
Clean the carburetor area.
To do a
8. If the temperature is -5˚ or colder, assemble the
winter cover on the starter.
CAUTION If you assemble a winter kit or
winter cover, remove them before you use
the product in temperature above 0˚. This
prevents damage on the engine.
Monthly maintenance
Do a check of the brake band. Refer
To do a check of the brake band
to
on page 22 .
Do a check of the clutch centre,
clutch drum and clutch spring.
Clean the spark plug. Refer to
a check of the spark plug on page
27 .
Clean the external parts of the carbu-
To do a check of
rettor.
Do a check of the fuel filter and the
fuel hose. Replace if necessary.
Do a check of all cables and connec-
tions.
To do
21