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Tensioning the Saw Chain
(quick chain tensioner)
1
2
Retensioning during cutting work:
N
Shut off the engine.
N
Pull out the hinged clip and loosen
the wingnut.
N
Turn the adjusting wheel (1)
clockwise as far as stop.
N
Tighten down the wingnut (2) firmly
by hand.
N
Fold down the hinged clip.
N
Go to "Tensioning the Saw Chain"
A new chain has to be retensioned more
often than one that has been in use for
some time.
N
Check chain tension frequently –
see chapter on "Operating
Instructions".
18
Checking Chain Tension
N
Shut off the engine
N
Wear work gloves to protect your
hands.
N
Press down the trigger interlock in
order to disengage the chain brake.
N
The chain must fit snugly against
the underside of the bar and it must
still be possible to pull the chain
along the bar by hand.
N
If necessary, retension the chain.
A new chain has to be retensioned more
often than one that has been in use for
some time.
N
Check chain tension frequently –
see chapter on "Operating
Instructions".
Fuel
Your engine requires a mixture of
gasoline and engine oil.
For health reasons, avoid direct
skin contact with gasoline and
avoid inhaling gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. This ready-to-use fuel mix
contains no benzol or lead, has a high
octane rating and ensures that you
always use the right mix ratio.
STIHL MotoMix is specially formulated
for use in STIHL engines and
guarantees a long engine life.
MotoMix is not available in all markets.
Mixing Fuel
Unsuitable fuels or lubricants or
mix ratios other than those
specified may result in serious
damage to the engine. Poor
quality gasoline or engine oil may
damage the engine, sealing rings,
hoses and the fuel tank.
Gasoline
Use only high-quality brand-name
gasoline with a minimum octane rating
of 90 – leaded or unleaded.
If your machine is equipped with a
catalytic converter, you must use
unleaded gasoline.
MS 280 C-Q
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