Air Filter - Husqvarna 545RXT AutoTune Operator's Manual

To clean the muffler
WARNING: The muffler gets very hot during
and after operation, also at idle speed. Risk
of fire and burn injuries.
1. If the muffler on your product has a spark arrester
screen, clean it weekly with a steel brush. Replace
the spark arrester screen if it is damaged.
CAUTION: A blocked spark arrester screen
causes the engine to become too hot and
results in damage to the cylinder and piston.
CAUTION: If the spark arrester screen is
frequently blocked, let your service agent
examine the muffler.
To clean the cooling system and starter
pawls
The cooling system includes:
• The air intake on the starter (A)
• The fins on the flywheel (B)
• The cooling fins on the cylinder (C)
• The cylinder cover (D)
• The starter pawls (E) that are found on the flywheel
Clean the cooling system weekly or more frequently if it
is necessary.
1. Remove the starter cover and the cylinder cover.
2. Clean the cooling system with a brush.
3. Examine the starter pawls and area around them for
dirt.
22
D
C
E
A
B
4. Clean around the starter pawls with a brush, to make
sure that they can move freely.

Air filter

A dirty air filter can cause carburetor malfunction, start
problems, loss of engine power and wear to engine
parts. It also makes the engine use more fuel than
necessary. Clean the filter at an interval of 8 hours, or
more frequently if the product is operated in a dusty
environment.
Note: An engine adjustment can be necessary when the
air filter has been cleaned or replaced. See
the engine on page 24 .
To do a check of a paper air filter
1. Remove the air filter cover.
2. Open the 2 hooks that hold the filter frame.
3. Remove the filter frame and the air filter.
4. Examine and clean the filter housing with a brush.
5. Examine the filter. Replace the filter if it is dirty or
damaged.
CAUTION: Do not bend or fold the filter as
this can cause damage to the filter. A
damaged filter must always be replaced.
To clean a nylon air filter
1. Remove the air filter cover and lift out the filter.
2. Examine and clean the filter housing with a brush.
3. Examine the filter. Clean the filter with warm soap
water. Replace the filter if it is damaged.
To adjust
171 - 001 - 20.10.2017