Storing The Machine; Checking And Replacing The Chain Sprocket - Stihl MS 651 Instruction Manual

Storing the Machine

For periods of 3 months or longer
Drain and clean the fuel tank in a
N
well ventilated area.
Dispose of fuel properly in
N
accordance with local
environmental requirements.
Run the engine until the carburetor
N
is dry – this helps prevent the
carburetor diaphragms sticking
together.
Remove the saw chain and guide
N
bar, clean them and spray with
corrosion inhibiting oil.
Thoroughly clean the machine – pay
N
special attention to the cylinder fins
and air filter.
If you use a biological chain and bar
N
lubricant, e.g. STIHL BioPlus,
completely fill the chain oil tank.
Store the machine in a dry, high or
N
locked location, out of the reach of
children and other unauthorized
persons.
MS 651
Checking and Replacing the
Chain Sprocket
Remove chain sprocket cover, saw
N
chain and guide bar.
Release chain brake – pull hand
N
guard against the front handle
Fit new chain sprocket
after use of two saw chains or
–
earlier
if the wear marks (arrows) are
–
deeper than 0.5 mm – otherwise the
service life of the saw chain is
reduced – use check gauge (special
accessory) to test
Using two saw chains in alternation
helps preserve the chain sprocket.
STIHL recommends use of original
STIHL chain sprockets in order to
ensure optimal functioning of the chain
brake.
5
6
2
1
4
3
6
Use a screwdriver to remove the E-
N
clip (1)
Remove the washer (2)
N
Remove rim sprocket (3)
N
Inspect transport profile on the
N
clutch drum (4) – if there are also
heavy signs of wear, also replace
the clutch drum
Remove clutch drum or spur chain
N
sprocket (5) including needle
cage (6) from the crankshaft – with
QuickStop Super chain brake, press
throttle trigger lockout beforehand
Install spur chain sprocket / rim sprocket
Clean crankshaft stub and needle
N
cage and lubricate with STIHL
lubricant (special accessory)
Slide needle cage onto the
N
crankshaft stub
English
2
1
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