Fuel System; Air Filter - Stihl MS 270 User Manual

– Fit the fan housing and tighten
down the screws firmly –
Before fitting the screw (1) above
the spring, insert a 5 mm
diameter drift or punch in the hole
(arrow) to prevent the bearing
plug, with spring, slipping out of
the tank housing.
Reassemble all other parts in the
reverse sequence.
MS 270, MS 280
12

Fuel System

12.1

Air Filter

Dirty air filters reduce engine power,
increase fuel consumption and
make starting more difficult.
1
The air filter should be cleaned
when there is a noticeable loss of
engine power.
see 3.5.
Release the twist lock (1).
Remove the carburetor box
cover (2).
– Remove all loose dirt from
around the filter.
Pull air filter (1) away to the rear.
Wash air filter thoroughly in STIHL
cleaner – see 14. Replace a
damaged air filter.
2
1
Unscrew the collar nuts (arrows).
Pull off the baffle in the direction
of the arrow.
1
Remove the filter base (1).
Install in the reverse sequence.
1
71