MS 241 C-M
English
30
Filler cap is now closed.
If the filler cap will not engage into the 
tank housing
The base of the filler cap is rotated in 
relation to the upper part.
N Look at the black alignment marks 
on the top of the filler cap.
N With the filler cap in the filling neck, 
twist it counterclockwise until it 
drops into its seat.
N Continue to twist the filler cap 
counterclockwise (approx. 1/4 turn) 
– this will twist the base of the cap 
into the correct position.
N While pushing down on the cap, 
twist the filler cap clockwise and 
close it – see section "Closing."
For automatic and reliable lubrication of 
the chain and guide bar – use only an 
environmentally compatible quality 
chain and bar lubricant. Rapidly 
biodegradable STIHL BioPlus is 
recommended.
NOTICE
Biological chain oil must be resistant to 
aging (e.g. STIHL BioPlus),  since it will 
otherwise quickly turn to resin. This 
results in hard deposits that are difficult 
to remove, especially in the area of the 
chain drive and chain. It may even cause 
the oil pump to seize.
The service life of the chain and guide 
bar depends on the quality of the 
lubricant. It is therefore essential to use 
only a specially formulated chain 
lubricant.
WARNING
Do not use waste oil. Renewed contact 
with waste oil can cause skin cancer. 
Moreover, waste oil is environmentally 
harmful.
NOTICE
Waste oil does not have the necessary 
lubricating properties and is unsuitable 
for chain lubrication.
Left: Base of filler cap is rotated – 
interior marking (1) is aligned 
with the exterior marking.
Right: Base of filler cap is in the cor
-
rect position – interior 
marking is below the clip. It 
does not align with the exte
-
rior marking.