Husqvarna ST 224 Manual Del Usuario página 16

To do a general inspection
• Make sure that all nuts and screws on the
product are tightened correctly.
To do a check of the oil level
CAUTION: A too low oil level can do
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
1. Run the engine a few minutes to make the oil
warm. Warm oil flows better and includes more
contaminants.
WARNING: The engine oil is hot.
Avoid skin contact with the used
engine oil.
2. Put the product on level ground.
3. Remove the ON/OFF key.
4. Put a container below the oil drain plug.
5. Remove the oil drain plug, tip the product and
drain the used oil in the container.
6. Put the product back to the operating position.
7. Install the oil drain plug and tighten it by hand.
8. Fill the engine with oil, see
oil on page 11 .
To lubricate the product
• Lubricate the pivot points (A) with oil.
• Lubricate the engine (B) with oil.
• Apply a small amount of lithium grease to the
interlock bosses (C) at the beginning of each
season or every 25 hours of use.
16
To fill the engine with
C
B
A
Muffler
The muffler keeps the noise levels to a minimum and
sends the exhaust fumes away from the operator.
Do not use the product if the muffler is missing or
defective. A defective muffler increases the noise
level and the risk of fire.
Examine the muffler regularly to make sure that it is
attached correctly and not damaged.
CAUTION: The muffler becomes very
hot during and after use and when the
engine operates at idle speed. Be careful
near flammable materials and/or fumes
to prevent fire.
To examine the spark plug
CAUTION: Always use the
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
Technical data on page 24 .
• Replace the spark plug if it is necessary.
1481 - 004 - 14.04.2021