Operating Instructions - Stihl GS 461 Instruction Manual

Switch off the engine
Set master control lever to STOP or
N
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.
Remove the spark plug - see "Spark
N
plug"
Dry the spark plug
N
Set master control lever to STOP or
N
0
Crank the engine several times with
N
the starter – to clear the combustion
chamber
Reinstall the spark plug – see
N
"Spark plug"
Set the Master Control lever to
N
warm start n – even if the engine is
cold
Restart the engine
N
Wet filter
Dry wet filter if necessary – do not
N
expose to extreme heat
If the filter is very dirty, clean the
N
filter thoroughly – see "Cleaning the
air filter"
GS 461

Operating Instructions

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".
If the diamond abrasive chain sags too
much, this leads to significantly
increased wear of the diamond abrasive
chain and chain sprocket – retension the
diamond abrasive chain – see
"Tensioning the diamond abrasive
chain".
A new diamond abrasive chain must be
retensioned more frequently than one
that has been in use already for an
extended period.
After a long period of full-throttle
operation
After a long period of full-throttle
operation, allow engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After finishing work
Short-term storage
Wait for engine to cool down. Keep the
machine with a full tank of fuel in a dry
place, well away from sources of
ignition, until you need it again.
Clean and dry guide bar and diamond
abrasive chain, and spray with STIHL
multispray – in particular the bearing of
the sprocket nose – corrosion protection.
Do not spray engine unit!
Long-term storage
See "Storing the machine"
English
19