Husqvarna 122HD45 Operator's Manual page 11

Maintenance
Examine the engine, the fuel tank and the fuel hose for leaks.
Tighten nuts and screws.
Examine the starter and the starter rope for damages.
Do a check that the screws that hold the blades together are correctly tightened.
Clean the air filter. Clean more frequently if used in areas which has dust. Re-
place if it is damaged.
Examine the vibration damping units for damages and cracks. Replace if it is
damaged.
Clean the external surface of the spark plug and the area around it. Remove the
spark plug and measure the electrode gap. Adjust the electrode gap or replace
To examine the spark plug on page 12 .
the spark plug. Refer to
Clean the cooling system.
Clean the external surface of the carburetor and the area around it.
Examine the fuel filter for contamination and the fuel hose for cracks and other
defects. Replace if it is damaged.
Clean the spark arrester screen on the muffler, replace if it is damaged.
Clean the inner surface of the fuel tank.
Replace the spark plug.
Examine the clutch, clutch spring and the clutch drum for wear. Replace if it is
damaged by an approved servicing dealer.
Make sure that the gear housing is filled with grease.
Do a check of all cables and connections.
To adjust the idle speed
1. Clean the air filter and attach the air filter cover.
2. Start the product. Refer to
cold engine on page 9 .
3. Turn the idle adjustment screw T clockwise until the
cutting unit starts to move.
994 - 001 - 25.02.2019
To start the product with a
Before
operation
X
X
4. Turn the idle adjustment screw counterclockwise
until the cutting unit stops.
WARNING: If the cutting unit does not
stop when you adjust the idle speed,
speak to your nearest servicing dealer.
Do not use the product until it is correctly
adjusted or repaired.
Note: The idle speed is correct when the engine
operates smoothly in all positions. Refer to
data on page 15 for the recommended idle speed.
To clean the cooling system
The cooling system keeps the engine temperature
down. The cooling system includes the cooling fins on
After 40 After 100
h h
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Technical
11