Air Filter - Husqvarna LC 151S Bedienungsanweisung

6. When you attach the new blade, point the angled
ends of the blade in the direction of the cutting cover.
(Fig. 38)
7. Make sure that the blade is aligned with the center of
the engine shaft.
8. Lock the blade with a block of wood. Attach the
spring washer and tighten the bolt and washer with a
torque of 43 – 47 Nm. (Fig. 39)
9. Pull the blade around by hand and make sure that it
turns freely.
WARNING:
The blade is very sharp and cuts can
easily occur.
10. Start the product to do a test of the blade. If the
blade is not correctly attached, there is vibration in
the product or the cutting result is unsatisfactory.
To do a check of the oil level
CAUTION:
damage to the engine. Do a check of the oil
level before you start the product.
1. Put the product on level ground.
2. Remove the oil tank cap with the attached dipstick.
3. Clean the oil from the dipstick.
4. Put the dipstick fully into the oil tank to give a correct
picture of the oil level.
5. Remove the dipstick.
6. Examine the oil level on the dipstick.
7. If the oil level is low, fill with engine oil and do a
check of the oil level again.
To replace the engine oil
WARNING:
directly after the engine is stopped. Let the
engine become cool before you drain the
engine oil. If you spill engine oil on your skin,
clean with soap and water.
(Fig. 40)
1. Operate the product until the fuel tank is empty.
2. Remove the ignition cable from the spark plug.
3. Remove the oil tank cap.
4. Put a container below the product to collect the
engine oil in.
5. Tilt the product to drain the engine oil from the oil
tank.
6. Fill with new engine oil of the type recommended in
Technical data on page 18 .
7. Do a check of the oil level. Refer to
the oil level on page 15 .
1924 - 002 - 12.10.2022
Use heavy duty gloves.
A too low oil level can do
Engine oil is very hot
To do a check of
To examine the spark plug
CAUTION:
recommended spark plug type. Incorrect
spark plug type can cause damage to the
product.
• Examine the spark plug if the engine is low on
power, is not easy to start or does not operate
correctly at idle speed.
• To decrease the risk of unwanted material on the
spark plug electrodes, obey these instructions:
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.
• If the spark plug is dirty, clean it and make sure that
the electrode gap is correct, refer to
on page 18 . (Fig. 41)
• Replace the spark plug if it is necessary.

Air filter

A dirty air filter can cause the engine to be damaged
or not operate correctly. Do maintenance on the air
filter more frequently in dusty conditions. Refer to
Maintenance on page 13 for information about when to
replace the air filter.
Note:
Always replace a damaged air filter.
To remove and install the air filter
WARNING:
1. Push the clips on the air filter cover.
2. Carefully remove the air filter cover (A) from the
engine.
3. Remove the air filter (B). (Fig. 42)
4. Examine the air filter for damages. Replace a
damaged air filter.
5. Clean and examine the air filter. Refer to
the air filter on page 15 .
6. Install in the opposite sequence.
To clean the air filter
A dirty air filter can cause the engine to be damaged or
not operate correctly. Do maintenance on the air cleaner
more frequently in dusty conditions.
Maintenance on page 13 for information about
See
when to replace the air filter.
1. Remove the air filter cover and remove the filter.
Always use the
Technical data
Use protective gloves.
To clean
15