Operation Manual

GS 461
English
19
When the engine has turned over for the
first time
N Move the Master Control lever (1) to
the position warm start n
N Press the button on the
decompression valve
N Hold and continue cranking the
concrete cutter
Once the engine is running
N Blip the throttle trigger (2); the
Master Control lever (1) jumps to
run F and the engine begins to idle
The concrete cutter is now ready for use.
At very low temperatures
N Let the engine warm up briefly with
the throttle slightly open
Switch off the engine
N Set master control lever to STOP or
0
If the engine does not start
The Master Control lever was not
returned to its "warm start" position n in
time when the engine turned over for the
first time and has now flooded.
N Remove the spark plug - see "Spark
plug"
N Dry the spark plug
N Set master control lever to STOP or
0
N Crank the engine several times with
the starter – to clear the combustion
chamber
N Reinstall the spark plug – see
"Spark plug"
N Set the Master Control lever to
warm start n – even if the engine is
cold
N Restart the engine
Wet filter
N Dry wet filter if necessary – do not
expose to extreme heat
N If the filter is very dirty, clean the
filter thoroughly – see "Cleaning the
air filter"
During the break-in period
A factory new machine should not be run
at high revs (full throttle off load) for the
first three tank fillings. This avoids
unnecessarily high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
shortblock are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During work
CAUTION
Always work with water.
CAUTION
Do not make the mixture leaner to
achieve an apparent increase in power –
this could damage the engine – see
"Adjusting the Carburetor".
Check chain tension frequently
The diamond abrasive chain stretches
and begins to sag. The drive links on the
underside of the bar must not come out
of the bar groove by more than 15 mm –
the diamond abrasive chain may
otherwise jump off the bar – retension
the diamond abrasive chain – see
"Tensioning the diamond abrasive
chain".
1
2411BA026 KN
STOP
2
1
2411BA027 KN
STOP
Operating Instructions