Husqvarna 553RS, Operator'S Manual

Page: 14 / 344

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. 32)
6. Put the friction washer and the blade against the
blade support. (Fig. 33)
7. Make sure that the blade aligns with the center of the
engine shaft. (Fig. 34)
8. Lock the blade with a block of wood. (Fig. 35)
9. Attach the spring washer and tighten the bolt with a
torque of 70 Nm. (Fig. 36)
10. Pull the blade around by hand and make sure that it
turns freely.
WARNING:
Use protective gloves.
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:
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.
a) For : Tighten the oil tank cap.
b) For KLIPPO LB 448, KLIPPO LB 553S e: Do not
tighten the oil tank cap.
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:
Engine oil is very hot
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. For , operate the product until the fuel tank is empty.
For KLIPPO LB 448, KLIPPO LB 553S e, close the
fuel valve.
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 15
.
7. Do a check of the oil level. Refer to
To do a check of
the oil level on page 14 .
Air filter
Note:
An air filter that is used for a long time cannot
be fully cleaned. Replace the air filter at regular
intervals. Always replace a damaged air filter.
To clean the air filter (KLIPPO LB 448)
CAUTION:
Do not operate the engine
without an air filter attached or if the air filter
is dirty.
CAUTION:
Replace the air filter if it
cannot be fully cleaned or if it is damaged. A
defective air filter causes damage to the
engine.
1. Push the latch tabs (A), remove the air filter cover
(B) and remove the air filter (C). (Fig. 37)
2. Hit the air filter against a hard surface or blow
compressed air through the air filter from the clean
side of the air filter.
CAUTION:
Do not use a brush to
remove dirt as this pushes the dirt into
the air filter.
3. Clean the air filter holder (D) and the air filter cover
with a moist cloth.
CAUTION:
Make sure that no dirt
goes into the air duct (E).
4. Install the air filter. Make sure that the air filter fully
seals against the air filter holder.
5. Install the air filter cover with the bottom tabs first.
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.
14 1510 - 003 - 15.10.2020