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WARNING:
attachment does not stop when you
adjust the idle speed, speak to your
servicing dealer. Do not use the product
until it is correctly adjusted or repaired.
3. The idle speed is correct when the engine operates
smoothly in all positions. The idle speed must be
below the speed when the cutting attachment starts
to rotate.
Note:
Refer to
Technical data on page 28 for the
recommended idle speed.
To do maintenance on the muffler
WARNING:
noise level and points the exhaust gases
away from the operator. The exhaust gases
are hot and can contain sparks. This can
cause fire if pointed against dry and
flammable material.
WARNING:
converters become hot during operation.
Risk of burn or fire. This also applies at idle
speed. To examine if your product has a
catalytic converter, refer to
on page 28 .
1. Stop the engine and let the muffler become cool.
2. Remove the muffler cover.
3. If the muffler on your product has a spark arrester
screen, do these steps:
a) Do a visual check. Replace the spark arrester
screen if it is damaged.
1643 - 001 - 07.04.2021
If the cutting
The muffler decreases the
Mufflers with catalytic
Technical data
b) Clean the spark arrester screen if it is blocked.
Clean weekly if your product has a catalytic
converter. Clean monthly if your product does not
have a catalytic converter.
CAUTION:
screen causes the engine to become too
hot which causes damage to the engine.
CAUTION:
is frequently blocked, it can be a sign that
performance of the catalytic converter is
decreased. Speak to your servicing dealer to
examine the muffler. A blocked spark
arrester screen causes overheating and
results in damage to the cylinder and piston.
To clean the cooling system
The parts of the cooling system are the air intake on the
starter (A), the fins on the flywheel (B), the cooling fins
on the cylinder (C) and the cylinder cover (D).
D
A
1. Clean the cooling system with a brush weekly or
more frequently if it is necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
cooling system can make the product too
A blocked spark arrester
If the spark arrester screen
C
B
A dirty or blocked
23
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