Instruction Manual

GS 461
English
28
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 the engine 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 seat 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
NOTICE
Use the concrete cutter only when
connected to a water supply producing
at least 22 PSI (1.5 bar) of water
pressure. The water is used to bind
harmful dust, cool the diamond abrasive
chain and rinse material from the bar
groove and the rest of the cutting
attachment. Confirm adequate water
pressure before starting to cut.
If too little water is fed to the diamond
cutting chain:
N Remove the coupling sleeve (1)
N Unscrew the “water connection with
screen” (2) and rinse it under
running water – the screen remains
on the water connection
N If water flow is still diminished, take
the machine to an authorized STIHL
dealer for service
NOTICE
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 0.6 in
(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."
Operating Instructions
2
370BA086 KN
1