Owner's Manual

Replace the chain sprocket
after using two Oilomatic chains
- or even sooner if the wear marks
on the sprocket are deeper than approx.
0.5 mm (
1
/
64
") since this would reduce
the life of the chain.
Check wear marks:
- on teeth of spur sprockets.
You can use gauge * 0000 893 4101
to check the depth of the wear marks
on spur and rim sprockets.
It is best to use two chains in rotation
with one sprocket.
* Special accessory
Before removing chain sprocket
Remove chain sprocket cover,
chain and guide bar.
Disengage the chain brake:
Pull hand guard toward front handle.
•
••
•
Use a screwdriver to remove the
E-clip.
•
••
•
Pull washer, spur sprocket and
needle cage off the crankshaft.
Clean the crankshaft stub and
needle cage, and lubricate with
STIHL grease (tube 0781 120
1111).
•
••
•
Reassemble with new spur
sprocket -
After fitting the clutch drum, rotate it
about one half turn to engage oil
pump drive.
Refit washer and E-clip on the
crankshaft.
Use only original STIHL chain
sprockets to ensure correct
operation of the chain brake.
143BA042 KN
K
Checking and Replacing
Chain Sprocket
Storing the Machine
For periods of about 3 months or longer:
•
••
•
Drain and clean the fuel tank in a
well ventilated area.
•
••
•
Run engine until carburetor is dry -
this helps prevent the carburetor
diaphragms sticking together.
•
••
•
Remove the saw chain and guide
bar, clean them and protect
with corrosion inhibiting oil.
•
••
•
Thoroughly clean the machine -
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 machine in a dry and high
or locked location - out of the
reach of children and other
unauthorized persons.
42 017, 018