Storing The Machine; Inspections And Maintenance By Dealer - Stihl BT 121 Instruction Manual

Replacing a Broken Rewind Spring
N Remove the rope rotor as described
in "Replacing the Starter Rope".
The bits of the spring may still be
under tension and could fly apart
when you remove the rope rotor
and spring housing. To reduce
the risk of injury, wear face
protection and work gloves.
7
7
N
Take out the screws (7).
N Remove the spring housing and
pieces of spring.
N Lubricate the new, ready-to-fit
replacement spring in the new
spring housing with a few drops of
resin-free oil – see "Special
Accessories".
N Place the replacement spring with
spring housing in position – bottom
plate facing up.
If the spring pops out of the housing
during installation: Refit it clockwise,
starting outside and working inwards.
N
Fit the screws.
N Refit the rope rotor as described in
"Replacing the Starter Rope".
N Tension the rewind spring.
N Fit the fan housing.
BT 121

Storing the Machine

For periods of 3 months or longer
N Remove the drilling tool.
N
Drain and clean the fuel tank in a
well ventilated area.
N Dispose of fuel properly in
accordance with local
environmental requirements.
N Run the engine until the carburetor
is dry – this helps prevent the
carburetor diaphragms sticking
together.
N Thoroughly clean the machine –
pay special attention to the cylinder
fins and air filter.
N Store the machine in a dry, high or
locked location, out of the reach of
children and other unauthorized
persons.
Inspections and
Maintenance by Dealer
Spark Arresting Screen in Muffler
Spark arresting screen in muffler (not all
markets)
N
If the engine is down on power,
check the spark arresting screen in
the muffler.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
English
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