Monthly Maintenance; Yearly Maintenance - Husqvarna 120 Mark II Manuel D'utilisation

• File off any burrs from the edges of the
guide bar.
• Clean or replace the spark arrestor
screen on the muffler.
A
• Clean the external surfaces of the
carburetor and its adjacent areas.
• Clean the air filter. Install a new air filter
if it is damaged or too dirty to be fully
To clean the air filter on
cleaned. See
page 23 for more information.

Monthly maintenance

• Examine the brake band on the chain
brake for wear. Replace when the brake
band thickness is less than 0.6 mm
(0.024 in) at the most worn point.
C
D
• Examine the clutch center, clutch drum
and clutch spring for wear.
22
• Clean the spark plug. Make sure that
the electrode gap is correct.
• Clean the external surfaces of the
carburetor and its adjacent areas.
• Examine the fuel filter and the fuel hose.
Replace if necessary.
• Empty the fuel tank.
• Empty the oil tank.
• Examine all cables and connections.

Yearly maintenance

• Examine the spark plug.
• Clean the external surfaces of the
carburetor and its adjacent areas.
• Clean the cooling system.
• Examine the spark arrester mesh.
• Examine the fuel filter.
• Examine the fuel hose for damage.
• Examine all cables and connections.
Intermittent maintenance
• Have an approved service center repair
or replace the muffler after 50 hours of
operation.
• Do maintenance on the spark plug
when:
• the power level in the engine is low.
• it is hard to start the engine.
• the engine does not work correctly at
idle speed.
• Do a check of the saw chain lubrication
each time you refuel. See
of the saw chain lubrication on page
26 .
To adjust the idle speed
Make sure that the air filter is clean and the
air filter cover is attached before you adjust
the idle speed.
1. Turn the idle adjustment screw, which is
identified with a "T" mark, clockwise until
the saw chain starts to turn.
To do a check
654 - 006 - 10.02.2020