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21
Help in case of malfunction
7.5
Maintenance schedule
The following jobs are allowed to be carried out
by the user independently. All other maintenance,
service and repair work must be carried out in an
authorised service workshop.
NOTE
Shorter maintenance intervals than
those stated in the table below may be necessary
in case of severe loading and high temperatures.
Activity
Before each
use
After the first
10 operating
hours
After the first
50 operating
hours
After the first
120 operat-
ing hours
After the first
200 operat-
ing hours
Clean the air filter
X
X
X
Replace the air filter
X
Check for loose parts
X
Clean the air intake
grille on the engine
X
Check for leakage
(fuel/air)
X
Clean the fuel filter
X
X
X
X
Clean the spark plug,
adjust the electrode
gap
X
X
X
Retighten the cylin-
der nuts
X
X
X
8
HELP IN CASE OF MALFUNCTION
CAUTION! Risk of injury.
Sharp-edged
and moving appliance parts can lead to injury.
■
Always wear protective gloves during mainte-
nance, care and cleaning work.
NOTE
For malfunctions that are not listed
in this table or that you cannot resolve yourself,
please contact our customer service.
Malfunction
Cause
Remedy
Engine does not start.
Lack of fuel
Top up with fuel.
Poor quality, contaminated or old
fuel in the tank
Empty tank and fill with fresh fuel.
Incorrect starting procedure
Execute the starting process correctly.
Spark plug is not connected.
Check the spark plug connector, make sure
that it is firmly seated on the spark plug.
■
Spark plug is damp.
■
Plug electrodes are soiled.
■
Incorrect spark plug elec-
trode gap
Check the spark plug.
Engine does not start.
Air filter is clogged.
Check and clean the air filter.
Vapour bubbles forming within
the carburettor due to high tem-
peratures
Wait a few minutes, then try again.