Operating Instructions - Stihl FS 91 Manual De Instrucciones

Circular Saw Blades
2.
1.
Disconnect wire rod from the
N
transport guard.
FS 91, FS 91 R
Swing wire rod outwards.
N
Fit transport guard on saw blade
N
from below, making sure the limit
stop is properly seated in the
recess.
Swing wire rod into position.
N
Hook wire rod to the transport
N
guard.

Operating Instructions

During 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
unnecessary 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
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Empty the fuel tank
2.
and keep the machine in a dry place,
well away from sources of ignition, until
you need it again. For longer out-of-
service periods – see "Storing the
Machine".
English
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