Instruction Manual
Table Of Contents
- STIHL FS 91, 91 R
- 1 Guide to Using this Manual
- 2 Safety Precautions and Working Techniques
- 2.1 Clothing and equipment
- 2.2 Transporting the machine
- 2.3 Refueling
- 2.4 Before starting
- 2.5 Starting the engine
- 2.6 Holding and guiding the machine
- 2.7 While working
- 2.8 Using mowing heads
- 2.9 When using metal cutting attachments
- 2.10 Vibrations
- 2.11 Maintenance and Repairs
- 2.12 Symbols on Deflectors
- 2.13 Shoulder Strap/Harness
- 2.14 Mowing Head with Nylon Line
- 2.15 STIHL Polycut Mowing Head with Polymer Blades
- 2.16 Risk of Kickout (Blade Thrust) with Metal Cutting Attachments
- 2.17 Grass Cutting Blade
- 2.18 Brush Knife
- 2.19 Circular Saw Blade
- 3 Approved Combinations of Cutting Attachment, Deflector, Handle and Harness
- 4 Approved Power Tool Attachments
- 5 Mounting the Bike Handle
- 6 Mounting the Loop Handle
- 7 Adjusting the Throttle Cable
- 8 Fitting the Carrying Ring
- 9 Mounting the deflector
- 10 Mounting the Cutting Attachment
- 10.1 Placing power tool on the ground
- 10.2 Mounting Hardware for Cutting Attachments
- 10.3 Blocking the Shaft
- 10.4 Removing the Mounting Hardware
- 10.5 Mounting the Cutting Attachment
- 10.6 Fitting Mowing Head with Screw Mounting
- 10.7 Remove the mowing head.
- 10.8 Mounting Metal Cutting Attachments
- 10.9 Removing the Metal Cutting Attachment
- 11 Fuel
- 12 Fueling
- 13 Fitting the Harness
- 14 Balancing the Machine
- 15 Starting / Stopping the Engine
- 16 Transporting the Unit
- 17 Operating Instructions
- 18 Replacing the Air Filter
- 19 Adjusting the Carburetor
- 20 Spark Arresting Screen in Muffler
- 21 Spark Plug
- 22 Engine Running Behavior
- 23 Lubricating the Gearbox
- 24 Storing the Machine
- 25 Sharpening Metal Cutting Blades
- 26 Maintaining the Mowing Head
- 27 Maintenance and Care
- 28 Minimize Wear and Avoid Damage
- 29 Main Parts
- 30 Specifications
- 31 Maintenance and Repairs
- 32 Disposal
- 33 EC Declaration of Conformity
9.6 Mounting the Limit Stop
7
002BA639 KN
6
WARNING
Risk of injury from thrown objects and contact
with the cutting attachment. Always fit the limit
stop (6) when you use a circular saw blade.
► Position the limit stop (6) on the gearbox
flange.
► Insert the screws (7) and tighten them down
firmly.
10 Mounting the Cutting
Attachment
10.1 Placing power tool on the
ground
002BA104 KN
► Shut off the engine.
► Lay your power tool on its back so that the cut‐
ting attachment mounting face is pointing up.
10.2 Mounting Hardware for Cutting
Attachments
The mounting hardware supplied depends on the
cutting attachment that comes as original equip‐
ment with the new machine.
10.2.1 Machine supplied with mounting hard‐
ware
Mowing heads and metal cutting attachments
may be mounted.
1
0000-GXX0500-A0
3
2
Depending on the cutting attachment, it may be
necessary to use the nut (3) and rider plate (2).
The thrust plate (1) must be used with all cutting
attachments.
These parts are included in a kit supplied with
the machine and are also available as special
accessories.
10.2.2 Machine supplied without mounting
hardware
2
002BA266 KN
Only mowing heads may be used which mount
directly to the shaft (2).
10 Mounting the Cutting Attachment English
0458-426-8321-B 19