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4.3

The Operator

WARNING

■ Users who have had no instruction cannot rec‐

ognize or assess the risks involved in using

the trimmer. The user or other persons may

sustain serious or fatal injuries.

► Read, understand and save the

instruction manual.

► If you pass the trimmer is on to another

user: Always give them the instruction man‐

ual.

► Make sure the user meets the following

requirements:

The user must be rested.

The user must be in good physical con‐

dition and mental health to operate and

work with the trimmer. If the user’s

physical, sensory or mental ability is

restricted, he or she may work only

under the supervision of or as instructed

by a responsible person.

The user is able to recognize and

assess the risks involved in using the

trimmer.

The user must be of legal age or is

being trained in a trade under supervi‐

sion in accordance with national rules

and regulations.

The user has received instruction from a

STIHL servicing dealer or other experi‐

enced user before working with the trim‐

mer for the first time.

The user must not be under the influ‐

ence of alcohol, medication or drugs.

► If you have any queries: Contact a STIHL

servicing dealer for assistance.

■ The trimmer’s ignition system produces an

electromagnetic field. This field may interfere

with some pacemakers. This can result in seri‐

ous or fatal injuries.

► If the user has a pacemaker: Make sure the

pacemaker is not affected.

4.4

Clothing and equipment

WARNING

■ Long hair can be drawn into the brushcutter

during operation. This may result in serious

injury to the user.

► Tie up and confine long hair above your

shoulders.

■ Objects can be thrown at high speed during

operation. This may result in injury to the user.

► Wear close-fitting safety glasses.

Suitable safety glasses are tested in

accordance with EN 166 or national

regulations and available commer‐

cially with the corresponding mark‐

ing.

► Wear face protection.

► Wear long trousers made from resistant

material.

■ Noise is generated during operation. Noise

can damage your hearing.

► Wear ear protection.

■ Falling objects can cause head injuries.

► If objects are likely to fall while work‐

ing: wear a hard hat.

■ Dust can be whipped up during operation.

Whipped up dust can damage the respiratory

passages and cause allergic reactions.

► If dust is generated: Wear a dust respirator

mask.

■ Inappropriate clothing can snag on wood,

brush or the brushcutter. Users not wearing

suitable clothing are at risk of serious injury.

► Wear close-fitting clothing.

► Remove scarves and jewelry.

■ The user may come into contact with the rotat‐

ing cutting attachment during operation. This

may result in serious injury to the user.

► Wear robust footwear.

► If you are using a metal cutting

attachment: Wear steel-toed safety

boots.

► Wear long trousers made from resistant

material.

■ When mounting and dismounting the cutting

attachment and during cleaning or mainte‐

nance, the user may come into contact with

the sharp edges of the cutting attachment or

the crosscut blade. This may result in injury to

the user.

► Wear work gloves made from resist‐

ant material.

■ Wearing unsuitable footwear may cause the

user to slip. This may result in injury to the

user.

► Wear sturdy, closed-toed footwear with

high-grip soles.

English

4 Safety Precautions

6

0458-844-0101-A

Summary of Contents for FS 491 C-M

Page 1: ...STIHL FS 491 C M Instruction Manual 2 23...

Page 2: ...themselves to a sus tainable and responsible handling of natural resources This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long...

Page 3: ...er 14 Throttle trigger Controls the engine speed 15 Throttle trigger lockout Unlocks the throttle trigger 16 Stop switch Shuts off the engine 17 Wing screw The wing screw secures the handlebar to the...

Page 4: ...otects the user from contact with metal cutting attachments 3 3 Icons Meanings of symbols that may be on the trimmer and the deflector This icon denotes the fuel tank This symbol denotes the manual fu...

Page 5: ...des Do not use this deflector for circular saw blades 4 1 4 Guard for shredder blades Meanings of warning signs and labels on the deflector for shredder blades Do not sse this deflector for shredder b...

Page 6: ...ous injury to the user Tie up and confine long hair above your shoulders Objects can be thrown at high speed during operation This may result in injury to the user Wear close fitting safety glasses Su...

Page 7: ...t a STIHL dealer for assistance Close the fuel tank cap If the brushcutter is dirty Clean the brush cutter Never attempt to modify your brushcutter Exception Mounting one of the combina tions of cutti...

Page 8: ...r fatally injured and property may be damaged Protect fuel mixture and gasoline from heat and fire Do not spill fuel mixture or gasoline If fuel is spilled Wipe up fuel with a cloth and do not attempt...

Page 9: ...immer Operate the trimmer alone Keep the cutting attachment close to the ground Watch out for obstacles Work standing on the ground and keep your balance If you start feeling fatigue Take a break If y...

Page 10: ...or in the direction of the user black arrow The user can lose control of the trim mer This can result in serious or fatal injuries Hold the trimmer firmly with both hands Use the working techniques de...

Page 11: ...y to the user Wear work gloves made from resist ant material 5 Preparing Trimmer for Operation 5 1 Preparing the Brushcutter for Operation The following steps must be performed before commencing work...

Page 12: ...ar as stop and hold it depressed Rotate the mowing head until the stop pin engages in position The shaft is now blocked Unscrew the mowing head clockwise Remove the thrust plate Remove stop pin 6 4 Re...

Page 13: ...nsert the stop pin in the bore up to the limit stop and hold it depressed Rotate the metal cutting attachment clockwise until the stop pin engages in position The shaft is now blocked Unscrew the moun...

Page 14: ...Two stroke engine oil 1 l gasoline 60 ml Two stroke engine oil 3 l gasoline 100 ml Two stroke engine oil 5 l gasoline Pour two stroke engine oil into a clean approved fuel canister first and then add...

Page 15: ...again with the choke lever 2 in the position 9 2 Shut off the engine 2 3 1 0000097402_001 Release the throttle trigger 1 and throttle trig ger lockout 2 The cutting attachment comes to a standstill De...

Page 16: ...engine housing and an air filter with plastic webbing The accessories and User Manual are available from a STIHL servicing dealer 11 2 Summer Operation The shutter must be set to summer mode when wor...

Page 17: ...ceably C Release the throttle trigger The engine runs at idling speed The brushcut ter is calibrated and ready for use Shut off the engine 11 4 Holding and Controlling the Brushcutter 1 2 0000097031 0...

Page 18: ...ing attachment If a metal cutting attachment is mounted Fit the matching transport guard 13 Transporting 13 1 Transporting the Trimmer Shut off the engine If a metal cutting attachment is mounted Fit...

Page 19: ...grease can be seen on the end of the screw plug 2 Screw in the tube of STIHL gear lubri cant 1 Squeeze 5 g of STIHL gear grease into the gear housing Unscrew the tube of STIHL gear lubri cant 1 Refit...

Page 20: ...uel in the fuel tank The pickup body is not located in the right place Contact a STIHL servicing dealer 18 2 Replacing air filter The air filter cannot be cleaned The air filter must be replaced if it...

Page 21: ...A Sound power level Lw measured according to ISO 22868 112 dB A Vibration level ahv measured according to ISO 22867 Control handle 2 8 m s Left handle 3 4 m s For information on compliance with Employ...

Page 22: ...spare parts and accessories accordingly STIHL cannot warrant for the use of those parts Original STIHL spare parts and original STIHL accessories are available from STIHL dealers 22 Disposal 22 1 Disp...

Page 23: ...hi nery Safety Regulations 2008 Electromagnetic Compatibility Regulations 2016 and Noise Emis sion in the Environment by Equipment for use Outdoors Regulations 2001 and has been manu factured in compl...

Page 24: ...www stihl com 04588440101A 04588440101A 0458 844 0101 A 0458 844 0101 A...

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