2. Remove the blade bolt, the spring washer and the
blade. (Fig. 30)
3. Examine the blade support and blade bolt for
damages.
a) If you replace the blade or the blade support,
also replace the blade bolt, the spring washer
and the friction washer.
4. Examine the engine shaft to make sure that it is not
bent.
5. When you attach the new blade, make sure that the
bent ends point in the direction of the cutting cover.
(Fig. 31)
6. Put the friction washer and the blade against the
blade support. (Fig. 32)
7. Make sure that the blade aligns with the center of the
engine shaft. (Fig. 33)
8. Lock the blade with a block of wood. (Fig. 34)
9. Attach the spring washer and tighten the bolt with a
torque of 43 – 47 Nm. (Fig. 35)
10. Pull the blade around by hand and make sure that it
turns freely.
WARNING:
The blade is very sharp and cuts can
easily occur.
11. 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.
1. Operate the product until the fuel tank is empty.
14
Use protective gloves.
A too low oil level can do
Engine oil is very hot
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 16 .
7. Do a check of the oil level. Refer to
the oil level on page 14 .
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 16 . (Fig. 36)
•
Replace the spark plug if it is necessary.
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 schedule on page 13 for information
See
about when to replace the air filter.
1. Remove the air filter cover and remove the filter.
2. Clean the filter by hitting it against a flat surface. Do
not use solvent with petroleum, kerosene or
compressed air to clean the filter.
Note:
Air filters in operation for a long time cannot
be cleaned fully. Replace the air filter at regular
intervals. Damaged air filters must always be
replaced.
3. When you assemble the air filter, make sure that it
fully seals against the filter holder.
To do a check of the side discharge
deflector
The side discharge deflector is attached to the side
discharge opening of the product. It decreases the risk
To do a check of
Always use the
Technical data
1583 - 004 - 23.10.2020