50
English
MS 260
For periods of about 3 months or longer:
: Drain and clean the fuel tank in a
well ventilated area.
: Dispose of remaining fuel and
cleaning solution properly in
accordance with local
environmental requirements.
: Run engine until carburetor is dry,
this helps prevent the carburetor
diaphragms sticking together.
: Remove the saw chain and guide
bar, clean them and spray with
corrosion inhibiting oil.
: Thoroughly clean the unit,
pay special attention to the cylinder
fins and air filter.
: If you use a biological chain and bar
lubricant, e.g. STIHL BioPlus,
completely fill the chain oil tank.
: Store the unit in a dry and high or
locked location, out of the reach of
children and other unauthorized
persons.
: Remove the chain sprocket cover,
chain and guide bar.
: Disengage the chain brake:
Pull hand guard toward the front
handle.
Replace the chain sprocket:
– after using two Oilomatic chains
– or sooner if the wear marks (arrows)
on the sprocket are deeper than
approx. 0.5 mm since this would
reduce the life of the chain.
You can use a gauge (special
accessory) to check the depth of the
wear marks on sprockets.
It is best to use two saw chains in
rotation with one sprocket.
STIHL recommends the use of original
STIHL sprockets to ensure correct
operation of the chain brake.
: Use a screwdriver to remove
the E-clip (1).
: Take off the washer (2) and rim
sprocket (3).
: Examine splines on clutch drum (4)
– if wear marks are severe, fit a new
clutch drum.
: Pull clutch drum or spur sprocket
(5) and needle cage (6) off the
crankshaft.
Storing the Machine Checking and Replacing
Chain Sprocket
001BA121 KN
001BA122 KN
1
2
4
5
6
1
2
3
6
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