Husqvarna 535LK Owner Manual - Page 16

To do maintenance on the trimmer head, Cooling system, To examine the spark plug, Air filter - brush cutter

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and result in damage to the cylinder and piston. CAUTION: The spark arrestor screen must be replaced if it is damaged. Do not use a product if the spark arrestor screen on the muffler is missing or defective. To do maintenance on the trimmer head 1. Only use the recommended cutting attachment and cutting attachment guard. Refer to Accessories on page 20. 2. Make sure that the cutter on the cutting attachment guard is not damaged, it cuts the cord to the correct length. 3. Install the cord as the illustrations on the last pages of the manual shows. Cooling system The product has a cooling system to keep the operation temperature as low as possible. Clean the components of the cooling system with a brush weekly or more frequently in rougher conditions. A dirty or blocked cooling system makes the product too hot which causes damage to the piston and cylinder. The cooling system has the following components: 1. Air intake on the starter. 2. Fins on the flywheel. 3. Cooling fins on the cylinder. 4. Cylinder cover (directs cool air over the cylinder). 5. Muffler cover. 6. Muffler plate. 4 2 5 3 • 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 19. • Replace the spark plug if it is necessary. Air filter Remove dust and dirt from the air filter to keep it clean and prevent these problems: • Carburetor malfunctions. • Problems when you start the product. • Loss of engine power. • Increased wear to engine parts. • Too much fuel consumption. To clean the air filter CAUTION: A air filter that is damaged, very dirty or soaked with fuel must always be replaced. If you use an air filter for a long time it cannot be fully cleaned. Replace the air filter with a new one at regular intervals. 1. Move the choke lever up, to close the choke valve. 1 6 To examine the spark plug CAUTION: Always use the recommended spark plug type. Incorrect spark plug type can cause damage to the product. 16 331 - 008 - 24.04.2020

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and result in damage to the cylinder and
piston.
CAUTION:
The spark arrestor screen must
be replaced if it is damaged. Do not use a
product if the spark arrestor screen on the
muffler is missing or defective.
To do maintenance on the trimmer
head
1.
Only use the recommended cutting attachment and
cutting attachment guard. Refer to
Accessories on
page 20
.
2.
Make sure that the cutter on the cutting attachment
guard is not damaged, it cuts the cord to the correct
length.
3.
Install the cord as the illustrations on the last pages
of the manual shows.
Cooling system
The product has a cooling system to keep the operation
temperature as low as possible.
Clean the components of the cooling system with a
brush weekly or more frequently in rougher conditions. A
dirty or blocked cooling system makes the product too
hot which causes damage to the piston and cylinder.
The cooling system has the following components:
1.
Air intake on the starter.
2.
Fins on the flywheel.
3.
Cooling fins on the cylinder.
4.
Cylinder cover (directs cool air over the cylinder).
5.
Muffler cover.
6.
Muffler plate.
4
2
3
1
6
5
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 19
.
•
Replace the spark plug if it is necessary.
Air filter
Remove dust and dirt from the air filter to keep it clean
and prevent these problems:
•
Carburetor malfunctions.
•
Problems when you start the product.
•
Loss of engine power.
•
Increased wear to engine parts.
•
Too much fuel consumption.
To clean the air filter
CAUTION:
A air filter that is damaged, very
dirty or soaked with fuel must always be
replaced.
If you use an air filter for a long time it cannot be fully
cleaned. Replace the air filter with a new one at regular
intervals.
1.
Move the choke lever up, to close the choke valve.
16
331 - 008 - 24.04.2020