Husqvarna 128CD Operator's Manual page 14

1. Turn the idle adjustment screw clockwise until the
cutting attachment starts to turn.
2. Turn the idle adjustment screw counterclockwise
until the cutting attachment stops.
To clean the cooling system
Clean the parts of the cooling system with a brush.
To do maintenance on the spark
arrester screen
Use a wire brush to clean the spark arrester screen.
To examine the spark plug
CAUTION: Use the recommended spark
plug. Make sure that the replacement is the
same as the manufacturer supplied part. An
incorrect spark plug can cause damage to
the product.
1. Examine the spark plug when:
a) the engine is low on power.
b) the engine is not easy to start.
c) the engine does not operate correctly at idle
speed.
2. If, the engine is not easy to start or operate, examine
the spark plug for unwanted materials. To decrease
the risk of unwanted material on the spark plug
electrodes:
a) make sure that the idle speed is correctly
adjusted.
b) make sure that the fuel mixture is correct.
c) make sure that the air filter is clean.
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3. Clean the spark plug if it is dirty. Examine that the
electrode gap is correct.
4. Replace the spark plug when it is necessary.
To apply grease to the two-piece shaft
• Apply grease to the end of the drive shaft after each
30 hours of operation.
To do the maintenance to the air filter
To clean the air filter
1. Remove the air filter cover and remove the air filter.
2. Clean the air filter with warm soap water. Make sure
that the air filter is dry before you install it.
3. Replace the air filter if it is too dirty to fully clean it.
Always replace a damaged air filter.
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