McCulloch SUPERLITE 4528 Operator's Manual page 11

Maintenance
Tighten nuts and screws.
Clean or replace the spark arrester screen on the muffler. Refer to
check of the muffler on page 6 .
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.
Replace 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
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.
1255 - 003 - 10.03.2022
To examine the spark plug on page 12 .
To start the product with a
T
operation
To do a
4. Turn the idle adjustment screw counterclockwise
until the cutting unit stops.
WARNING:
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 14 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
Before After 40 After 100
h
X
X
X
X
X
X
X
X
X
If the cutting unit does
Technical
h
X
X
X
X
X
X
X
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