Operation Manual

28
english
MS 360
Retensioning during cutting work:
: Shut off the engine first –
and then loosen the nut.
: Hold the bar nose up and use
screwdriver to turn tensioning screw
(1) clockwise until chain fits snugly
against the underside of the bar.
: While still holding the bar nose up,
tighten down the nut firmly.
: Go to chapter “Checking Chain
Tension”.
A new chain has to be retensioned more
often than one that has been in use for
some time.
: Check chain tension frequently –
see chapter "Operating
Instructions".
: Shut off the engine.
: Wear work gloves.
: Chain must fit snugly against the
underside of the bar – and, with the
chain brake disengaged, it must still
be possible to pull the chain along
the bar by hand.
: If necessary, retension the chain.
A new chain has to be retensioned more
often than one that has been in use for
some time.
Check chain tension frequently – see
chapter "Operating Instructions".
This engine is certified to operate on
unleaded gasoline and with the mix ratio
50:1.
Your two-stroke engine requires a
mixture of brand-name gasoline and
quality two-stroke engine oil with the
classification TC.
Use regular branded unleaded gasoline
with a minimum octane rating of 89
RON. If the octane rating of the regular
grade gasoline in your area is lower use
premium unleaded fuel.
Note: Units with a catalytic converter
require unleaded gasoline. The
efficiency of the catalytic converter can
drop more than 50 % if several tankfuls
of leaded gasoline are used.
Fuel with a lower octane rating may
result in preignition (causing "pinging")
which is accompanied by an increase in
engine temperature. This, in turn,
increases the risk of the piston seizure
and damage to the engine.
The chemical composition of the fuel is
also important. Some fuel additives not
only detrimentally affect elastomers
(carburetor diaphragms, oil seals, fuel
lines etc.), but magnesium castings as
well. This could cause running problems
or even damage the engine. For this
reason it is essential that you use only
name branded fuels!
Use only STIHL two-stroke engine oil or
equivalent branded two-stroke air-
cooled engine oils with the classification
TC for mixing.
Tensioning the Saw Chain
1
133BA024 KN
Checking Chain Tension
143BA007 KN
Fuel