Husqvarna LC 551SP Operator's Manual page 15

Maintenance
Examine the oil level
Clean the product
Examine the cutting equipment
Examine the cutting cover *
Examine the engine brake handle * LC 551SP, LC 551VQ
Examine the blade brake control * LC 551VBP
Examine the muffler *
Examine the spark plug
Replace the oil (the first time after 5 h use, then after each 50 h use and
yearly)
Clean or replace the air filter
Examine the fuel system
To do a general inspection
• Make sure that all nuts and screws on the product
are tightened correctly.
To clean the product
• Clean plastic parts with a clean and dry cloth.
• Do not use water to clean the product. Water can
enter the battery or the motor and cause short circuit
or damage to the product.
• Do not use a high pressure washer to clean the
product.
• Do not flush water directly on the motor.
• Use a brush to remove leaves, grass and dirt.
• Remove the clutch cover, use a brush to remove
grass below the clutch cover. (LC 551VBP)
To clean the inner surface of the cutting cover
1. Empty the fuel tank.
2. Put the product on its side with the muffler down.
CAUTION:
with the air filter down, the engine can
become damaged.
3. Hose down the inner surface of the cutting cover
with water.
To examine the cutting equipment
WARNING:
remove the ignition cable from the spark
plug.
1906 - 003 - 30.09.2022
If the product is put
To prevent accidental start
Daily
X
X
X
X
X
X
WARNING:
when you do maintenance on the cutting
equipment. The blade is very sharp and cuts
can easily occur.
1. Examine the cutting equipment for damage
or cracks. Always replace a damaged cutting
equipment.
2. Look at the blade to see if it is damaged or blunt.
Note:
It is necessary to balance the blade after it is
sharpened. Let a service center sharpen, replace and
balance the blade. If you hit an obstacle that causes
the product to stop, replace the damaged blade. Let the
service center estimate if the blade can be sharpened or
must be replaced.
To replace the blade
1. Lock the blade with a block of wood. (Fig. 50)
2. Remove the blade bolt.
3. Remove the blade.
4. Examine the blade support and blade bolt for
damage.
5. Examine the engine shaft to make sure that it is not
bent.
6. When you attach the new blade, point the angles of
the blade in the direction of the cutting cover. (Fig.
51)
7. Make sure that the blade is aligned with the center of
the engine shaft.
8. Lock the blade with a block of wood. (Fig. 52)
9. Attach the blade.
Weekly Monthly
X
X
X
X
X
Use protective gloves
15