Stihl FS 550 User Manual

21FS 500, FS 550
English / USA
Grass Shield
*
: The grass shield may only be used
together with the 2.4 in (60 mm)
diameter thrust plate (A) and the
deflector for mowing heads.
* see "Guide to Using this Manual"
STIHL AutoCut
STIHL TrimCut
: Block the output shaft with the stop
pin.
: Screw cutting head
counterclockwise onto the output
shaft (7) and
Important: Remove the stop pin.
Removing the mowing head
: Block the output shaft.
: Unscrew the mowing head
clockwise.
STIHL PolyCut 40-3
: Block the output shaft with the stop
pin.
: Position the mowing head on the
shaft.
: Fit the 2.4 in (60 mm) diameter
thrust washer (6) –
convex side must face down.
: Screw on nut (4) counterclockwise
and tighten down firmly.
Important: Remove the stop pin.
Removing the mowing head
: Block the output shaft.
: Unscrew the nut clockwise.
If the mounting nut is too loose (cannot
be tightened properly), fit a new one.
A
398BA052 KN
7
398BA053 KN
4
6
398BA054 KN

Stihl FS 550 Specifications

General

Engine Power	2.8 kW
Engine Type	2-stroke
Ignition System	Electronic
Fuel Capacity	0.99 liters
Fuel Tank Capacity	0.99 liters
Recommended Cutting Attachment	Metal Grass Cutting Blade
Starter	Recoil