McCulloch B26PS Bedienungsanweisung Seite 16

Maintenance
Clean the external surface of the carburetor and the area around it.
Examine the fuel filter for contamination.
Examine the fuel hose for damage.
Examine all cables and connections.
Examine the clutch, the clutch springs and the clutch drum for wear.
Replace the spark plug.
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 speed screw T, which is identified with
a "T" mark, clockwise until the cutting attachment
starts to rotate. (Fig. 65)
2. Turn the idle speed screw T, which is identified with
a "T" mark, counterclockwise until the cutting
attachment stops.
3. The idle speed must be below the speed when the
cutting attachment starts to rotate. The idle speed is
correct when the engine operates smoothly in all
positions.
To do a check of the muffler
WARNING: Never use a product with a
defect muffler.
(Fig. 32)
WARNING: The exhaust fumes from the
engine are hot and may contain sparks
which can start a fire. Never start the
product indoors or near combustible
material!
The muffler keeps noise levels to a minimum and sends
exhaust fumes away from the operator.
• Make sure that the muffler is correctly attached to
the product and is not damaged. (Fig. 66)
To clean the cooling system
• Clean the air intake (A) on the starter and the cooling
fins (B) on the cylinder with a brush. (Fig. 67)
To do a check of the spark plug
CAUTION: Use the recommended spark
plug. Refer to
An incorrect spark plug can cause damage
to the product.
16
Technical data on page 18 .
1. If the product is not easy to start or to operate or if
the product operates incorrectly at idle speed,
examine the spark plug for unwanted materials. To
decrease the risk of unwanted material on the spark
plug electrodes, do these steps:
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.
2. Clean the spark plug if it is dirty.
3. Make sure that the electrode gap is correct. Refer to,
Technical data on page 18 . (Fig. 68)
4. Replace the spark plug monthly or more frequently if
necessary.
To apply grease to the two-piece shaft
• Apply grease to the end of the drive shaft after each
30 hours of operation. (Fig. 69)
To clean the air filter
1. Remove the air filter cover and remove the air filter.
(Fig. 70)
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.
4. If your product has a foam air filter, apply air filter oil.
Only apply air filter oil to a foam filter. Do not apply
oil to a felt filter.
To apply oil to the air filter
CAUTION: Always use Husqvarna special
air-filter oil. Do not use other types of oil.
WARNING: Put on protective gloves. The
air-filter oil can cause skin irritation.
1. Put the air filter in a plastic bag.
2. Put the oil in the plastic bag.
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