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Stihl FS 91 R User Manual

Stihl FS 91 R
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FS 91, FS 91 R
English
49
Definitions
1 Drive Tube
Encloses and protects the drive
shaft between the coupling sleeve
and gearbox.
2 Mowing Head
The cutting attachment, i.e. mowing
head, for different purposes.
3 Deflector for Mowing Heads only
Designed to reduce the risk of injury
from foreign objects flung
backwards toward the operator by
the cutting attachment and from
contact with the cutting attachment.
4 Line Limiting Blade
Metal blade at the deflector in order
to keep the line of the mowing head
at the proper length.
5 Deflector for all Mowing Tools
Designed to reduce the risk of injury
from foreign objects flung
backwards toward the operator by
the cutting attachment and from
contact with the cutting attachment.
6 Skirt for Mowing Heads
Extension attached to the bottom of
the deflector when using mowing
heads.
7 Metal Cutting Attachment
The cutting attachment, i.e. blade,
made from metal for different
purposes.
8 Circular Saw Blade
Cutting attachment made of metal
for cutting wood.
9 Limit Stop for Circular Saw Blade
only
Designed to position the power tool
steady against the wood in order to
reduce the risk of injury from loss of
control from reactive forces such as
thrust out.
EPA / CEPA
The Emission Compliance Period
referred to on the Emissions
Compliance Label indicates the number
of operating hours for which the engine
has been shown to meet Federal
emission requirements.
Category
CARB
The Emission Compliance Period used
on the CARB-Air Index Label indicates
the terms:
Engine
Single cylinder four-stroke engine with
mixture lubrication
Specifications
A = 300 hours
B = 125 hours
C= 50hours
Extended = 300 hours
Intermediate = 125 hours
Moderate = 50 hours
Displacement: 28.4 cc
(1.72 cu.in)
Bore: 38 mm (1.50 in)
Stroke: 25 mm (0.98 in)
Engine power to ISO
8893:
0.95 kW
(1.3 bhp) at
7,000 rpm
Idle speed: 2,800 rpm

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Stihl FS 91 R Specifications

General IconGeneral
TypeString trimmer
CordlessYes
Head typeNylon line
Handle typeD-loop handle
Engine power1.3 hp
Product colorBlack, Metallic, Orange
Uncertainty K2 m/s²
Rotational speed8000 RPM
Number of strokes4
Sound power level107 dB
Fuel tank capacity0.71 L
Vibration emission3.7 m/s²
Engine displacement28.4 cm³
Sound pressure level96 dB
Cutting diameter (max)- mm
Power sourceGasoline
Weight and Dimensions IconWeight and Dimensions
Length1800 mm
Weight5500 g

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