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13 NOISE
Noise emission values measured according to relevant standard. (K=2.5)
Acoustic pressure level LpA
Acoustic power level LwA
ATTENTION! Wear hearing protection when sound pressure is over 85 dB(A).
aw (Vibration)
14 TROUBLESHOOTING
14.1
Engine unit
What to do when....
Source of problem
1. The engine will not start or will not
keep running
Incorrect
starting
procedure
2. The engine starts but is lacking in
power
Incorrect adjustment
of the choke lever.
(11)
Air filter clogged
Soot deposits or wetness on the spark plug
Incorrect carburettor
adjustment
14.2
Chain saw
Motor is running, saw chain (31) does not move
Chain saw attachment is not connected
properly to the engine unit.
No progress
Saw chain (31) dry/over heating or is
sagging
14.3
Hedge trimmer
Motor is running, blades do not move
Hedge trimmer attachment is not connected
properly to the engine unit.
98 dB(A)
114 dB(A)
9.8 m/s²
Corrective action
Follow
the
instructions
Set the choke lever
(11) to
Clean or replace the
filter
Clean spark plug or
replace it with a new
spark plug.
P a g e
K = 1.5 m/s²
Source of problem
4. The engine runs irregularly and lacks
in power when revved
Dirty
spark
plug
incorrect
distance
between the electrodes
Check assembly
Top up the oil or regrind, replace or tighten
the saw chain (31)
Check assembly
| 26
EN
Corrective action
or
Clean the spark
plug and adjust
the spark plug
gap or replace
the spark plug
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