50
FAILURE REMOVAL
Failures
Causes
Removal
Engine does not start or
starts, but does not run
further.
Wrong starting process. Refer to the instructions in these operating
instructions.
Empty fuel tank/Lack of fuel Add some fuel
Wrong fuel, storing without petrol tank
being drained
Drain the fuel tank and carburettor. Add
fresh petrol.
Wrong setting of the carburettor. Have the carburettor settings adjusted by
an authorised customer service organisa-tion.
Sooted spark plug (carbon residues on elec-
trodes), electrodes distance too big
Clean the spark plug, check the plug thermal
value, possibly change the plug.
The spark plug is wet from petrol (oversatu-
rated engine).
Dry the spark plug out and ret it.
Dirty air lter Clean or replace the air lter
Engine starts, but does
not run at full power.
Dirty air lter Clean or replace the air lter
Wrong setting of the carburettor. Have the carburettor settings adjusted by
an authorised customer service organisation.
Engine splutters. Dirty air lter Clean or replace the air lter
The motor does not de-
velop maximum power
Engine does not run
smoothly.
Wrong setting of the carburettor. Have the carburettor settings adjusted by
an authorised customer service organisa-
tion.
Excessive exhaust gases
(smoke).
Oil doesn‘t ow Check oil for poor quality. Substitute
Check the oil ow and openings for
blockages.
Clean
If the device requires further service, contact an authorized service provider.
MAINTENANCE CHART
Please note that the following maintenance intervals apply for normal
operating conditions. If your daily working time is longer than normal or
working conditions are dicult (very dusty work area, etc.), shorten the
specied intervals accordingly.
be-
fore
star-
ting
work
after
nishing
work or
daily
after
each-
refue-
ling
stop
if
neces-
sary
Complete machine Visual inspection (condition,
fuel and other leaks)
x x
Clean
x
Air lterClean Clean
x
Replace by a servicing dealer
x
Fuel lter/hose check/exchange
x
Spark plug Readjust electrode gap
x
Replace after about 100 opera-
ting hours
Cooling inlets Inspect
x
Clean
x
Accessible screws and nuts (not adjusting
screws)
Retighten
x
GB
ENGLISH