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
3 Approved Combinations of Cutting Attachment, Deflector, Han‐
dle and Harness
Cutting attachment Deflector, limit stop Handle Carrying strap
11
5
1
2
3
7
9
10
12
13
8
4
6
18
17
16
15
14
22
22
20
21
22
20
19
21
23
25
25
24
24
25
26
0000-GXX-1287-A2
3.1 Permissible combinations
Choose the correct combination from the table
depending on the cutting tool!
WARNING
For safety reasons only the cutting attachments,
deflector, handle and harness versions within
one line of the table may be combined with one
another. No other combinations are permitted
because of the risk of accidents!
3.2 Cutting attachments
3.2.1 Mowing heads
1 STIHL SuperCut 20‑2
2 STIHL AutoCut C 26‑2
3 STIHL AutoCut 25‑2
4 STIHL AutoCut 36‑2
5 STIHL DuroCut 20‑2
6 STIHL PolyCut 20‑3
3.2.2 Metal cutting tools
7 Grass cutting blade 230‑2
(Ø 230 mm)
8 Grass cutting blade 260‑2
(Ø 260 mm)
9 Grass cutting blade 230‑4
(Ø 230 mm)
10 Grass cutting blade 230‑8
(Ø 230 mm)
11 Grass cutting blade 250‑32
(Ø 250 mm)
12 Brush knife 250‑3
English 3 Approved Combinations of Cutting Attachment, Deflector, Handle and Harness
12 0458-426-8321-B