Stihl FS 91 R User Manual

FS 91, FS 91 R
English
26
Blocking the Shaft
The output shaft (2) must be blocked
with the stop pin (6) or screwdriver (6) to
mount or remove cutting attachments.
These parts come standard with the
machine or are available as special
accessories.
N Insert the stop pin (6) or
screwdriver (6) in the hole (7) in the
gearbox as far as stop – and apply
slight pressure.
N Rotate shaft, nut or cutting
attachment until the stop pin slips
into position and blocks the shaft.
Removing the Mounting Hardware
N Block the shaft (5) with the stop pin
(1).
N Use the combination wrench (2) to
loosen and remove the nut (3)
clockwise (left-hand thread).
N Take the rider plate (4) off the
shaft (5). Do not remove the thrust
plate (6).
Mounting the Cutting Attachment
WARNING
Risk of injury from thrown objects and
contact with the cutting attachment. Use
a deflector that matches the cutting
attachment – see "Mounting the
Deflector".
Fitting Mowing Head with Screw
Mounting
Keep the instruction leaflet for the
mowing head in a safe place.
N Fit the thrust plate (1).
N Screw the mowing head (3)
counterclockwise on to the shaft (4)
as far as stop.
N Block the shaft (4) with the stop pin
(2).
N Tighten down the mowing head (3)
firmly.
NOTICE
Remove the tool used to block the shaft.
6
7
2
002BA330 KN
6
0000-GXX-1323-A0
4
1
2
3
5
6
1
0000-GXX-1324-A0
2
3
4

Stihl FS 91 R Specifications

General

Type	String trimmer
Cordless	Yes
Head type	Nylon line
Handle type	D-loop handle
Engine power	1.3 hp
Product color	Black, Metallic, Orange
Uncertainty K	2 m/s²
Rotational speed	8000 RPM
Number of strokes	4
Sound power level	107 dB
Fuel tank capacity	0.71 L
Vibration emission	3.7 m/s²
Engine displacement	28.4 cm³
Sound pressure level	96 dB
Cutting diameter (max)	- mm
Power source	Gasoline

Weight and Dimensions

Length	1800 mm
Weight	5500 g