Stihl MS 261 User Manual

34 MS 261, MS 261 C
5.9 Collar Nuts for Sprocket
Cover
This sprocket cover can only be
used on the MS 261.
Retrofitting other models is not
possible. The length and shape of
the collar studs must be matched to
the sprocket cover with captive
nuts.
Special tool 5910 893 9600 is
available for replacing the nuts.
– Remove the chain sprocket
cover.
: Screw the short stud of special
tool (1) 5910 893 9600 into the
collar nut (2) as far as stop.
5902RA112 TG
1
2
2
– Turn the sprocket cover over and
clamp the hexagon of the special
tool in a vise.
: Use an 11mm drill to drill away
the flange of the captive nuts –
the shoulder in the sprocket
cover must not be drilled out.
– Remove the collar nuts.
– Unscrew the special tool from the
collar nuts.
Installing
: Push the new collar nuts (1) into
position.
5902RA113 TG5902RA114 TG
1
1
– Hold hexagon of collar nuts
steady.
: Screw the long stud of special
tool (1) 5910 893 9600 into the
collar nuts from the other side as
far as stop.
This flares the ends of the new
collar nuts are secures them in the
sprocket cover.
– Reassemble all other parts in the
reverse sequence.
5902RA115 TG
1

Stihl MS 261 Specifications

General

Motor type	2-stroke motor
Chain gauge	1.6 mm
Chain pitch	3/8 \
Blade length	400 mm
Automatic oiling	Yes
Oil tank capacity	0.27 L
Fuel tank capacity	0.5 L
Engine displacement	50.2 cm³
Engine power	3.8 hp
Power source	Gasoline

Weight and Dimensions

Weight	5200 g