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Maintenance Daily Weekly Monthly
Examine the vibration damping elements for damages and cracks.
1
X
Examine the spark plug, see
To examine the spark plug on page 24
. X
Clean the cooling system. X
Clean or replace the spark arrester screen. X
Clean the external surface of the carburetor and the area around it. X
Make sure that the bevel gear is filled to ¾ with grease. X
Lubricate the wire X
Replace the spark plug. X
Lubricate the drive shaft.
2
X
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
A
B
E
C
D
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.
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
To adjust
the engine on page 24
.
To do a check of a paper air filter
1. Remove the air filter cover.
1
Replace the vibration damping elements after each season or at a minimum of once a year.
2
At an interval of 3 months.
22 171 - 009 - 21.09.2020
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