To Clean The Product; To Do A General Inspection; To Do A Check Of The Engine Oil Level; To Clean Or Replace The Air Filter - Husqvarna LG 504 Operator's Manual

Engine maintenance
Drain water from the fuel system.
Replace the fuel filter.

To clean the product

CAUTION: Before you clean the product,
attach a plastic bag tightly around the fuel
tank cap. This is to make sure that water
does not go into the venthole in the fuel tank
cap.
• Use running water from a hose or a high-pressure
washer to clean the product.
CAUTION: Do not point the water
directly at the fuel tank cap, electrical
components or the engine.
• Remove grease and oil from the handle.

To do a general inspection

• Make sure that all nuts and screws on the product
are tightened correctly.

To do a check of the engine oil level

1. Remove the oil tank cap and dipstick.
2. Clean the oil from the dipstick.
3. Put the dipstick back fully into the oil tank.
4. Remove the dipstick.
5. Examine the oil level on the dipstick.
6. If the oil level is low, fill with engine oil and do a
check of the oil level again. Refer to
on page 20 or the engine manual for the correct
type of oil.
Air filter
WARNING: Use approved respiratory
protection when you clean or replace the air
filter. Discard used air filters correctly. The
dust in the air filter is dangerous to your
health.
CAUTION: Always replace a damaged air
filter, or the dust will go into the engine and
cause engine damage.
To examine the air filter indicator
CAUTION: Examine the air filter indicator
each time the engine is started. A clogged
air filter can cause damage to the product.
1229 - 002 - 06.04.2020
Before use,
each 10 h
1. Examine the air filter indicator.
Refer to the engine manual for more information about
the air filter indicator.

To clean or replace the air filter

Technical data
1. Turn the locking knob on the air filter cover
After the
first 20 h
A
a) If the air filter indicator is compressed (A), clean
or replace the air filter. Refer to
replace the air filter on page 15 .
WARNING: Stop the engine before
you do the maintenance.
a) If the the green mark (B) shows, no maintenance
on the air filter is necessary.
WARNING: Use approved respiratory
protection when you clean or replace the air
filter. Discard used air filters correctly. The
dust in the air filter is dangerous to your
health.
WARNING: Do not clean the air filter with
compressed air. This causes damage to the
air filter and the risk increases that you
breathe the dangerous dust.
counterclockwise and remove the air filter cover.
A
Yearly, each
Each 250 h
500 h
O
O
B
To clean or
15