Operating And Maintenance Instructions; General Operating And Maintenance Instructions; Carburettor Adjustment; Information About The Spark Plug - Solo 440 Gebrauchsanweisung

Operating and maintenance instructions

10. Operating and maintenance
instructions
10.1 General operating and maintenance
instructions
The maintenance and the repair of modern machines
as well as their safety-relevant assemblies require
qualified specialised training and a workshop equipped
with special tools and test equipment. Consequently
the manufacturer recommends that all tasks not
described in these operating instructions be carried out
by a specialised workshop. That specialist has the
required training, experience, and equipment at his
disposal, to provide you with the most cost-effective
solution for such work. He will provide additional help in
word and deed.
After a running-in time of app. 5 hours, all accessible
screws and nuts (except the carburettor adjusting
screws) must be checked for tightness and they must
be retightened, if required.
Bear in mind when using this power tool that the engine
and its various components such as carburetor and
ignition system can become very hot, particularly at full-
throttle operation. So that no consequential damages
occur in this regard, the motor should run for some time
in idle after longer periods of full-throttle operation.
When you are finished with the work, let the motor cool
down.
It is best to store the equipment in a dry, safe location
with a full fuel tank. There should be no open flame or
similar nearby. For longer periods without using the
equipment (longer than four weeks), see chapter "10.7
Shutdown and storage".

10.2 Carburettor adjustment

The carburettor has been adjusted optimally at the
factory. Subject to the operational altitude (mountains
or low lying areas), the carburettor may require
readjustment.
Fig. 13
The carburettor has 3 adjusting screws:
! Idling end-stop screw "T"
! Low speed mixture screw "L"
! High speed mixture screw "H"
ENGLISH 14
Only qualified mechanics must adjust the
regulating screws for idle mixture "L" and full
load mixture "H".
Turn the idling end-stop screw "T" to adjust the idling
speed in accordance with the details provided in the
specification. Use an engine rev counter for this job.
!
If the idling speed is too high, turn the idling end-
stop screw "T" anti-clockwise.
!
If the idling speed is too low (engine stops) turn the
idling end-stop screw "T" clockwise until the engine
runs smoothly.
If the idling speed cannot be set correctly with the idling
end-stop screw "T", request an authorised service
centre to tune the carburettor.
The following instructions are for authorised
service shops
D-CUT carburettors:
Use the D-CUT carburettor key to adjust the idle
mixture screw "L" and the full load mixture screw "H".
Clean the air filter before adjusting the low speed
screw!
Let the engine run warm before adjusting the engine
speed.
The carburettor is tuned for optimum engine
performance. Use a rev counter to tune the
carburettor correctly!
Do not adjust the engine to a higher speed. Excessive
engine speed can lead to major engine damage!

10.3 Information about the spark plug

Check the spark plug regularly after 50 hours of
operation.
Fig. 14
! Push in tab (30) on the standard equipment casing
and push out spark plug cap (8).
! Disconnect the spark plug cap.
! Unscrew the spark plug and dry the electrodes.
The spark plug should be replaced after 100 hours of
operation or if the electrodes are badly worn.
Do not turn the engine over while the spark plug has
been removed or the spark plug cap has been