STIHL expressly commit 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 service life. We thank you for your confidence in us and hope you will enjoy working with your STIHL product.
Accommodates the stop pin. 21 Stop Pin Blocks shaft while cutting attachment is being mounted. 22 Screw Plug Closes filler opening for STIHL gear grease. # Rating Label with Serial Number Deflectors and Cutting Attach‐ 1 Filter Cover Covers the air filter.
Wear safety glasses, hearing protec‐ tion and a hard hat. Intended Use Wear safety boots. The STIHL FS 235 R trimmer is designed for the following applications: – with a mowing head: Mowing grass – with a grass cutting blade: Mowing grass and...
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– The user must not be under the influ‐ ► If you are using a metal cutting ence of alcohol, medication or drugs. attachment: Wear steel-toed safety ► If you have any queries: Contact a STIHL boots. servicing dealer for assistance. ■ The trimmer’s ignition system produces an ►...
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► Work only with an undamaged brushcutter. ► Wear sturdy, closed-toed footwear with ► If fuel is leaking from the trimmer: Do not use the trimmer and contact a STIHL dealer high-grip soles. for assistance. Working Area and Surround‐...
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– If a metal cutting attachment not manufactured The fuel expands and excess pressure can by STIHL is used, it must not be heavier, build up in the tank. Fuel can escape as a thicker, of a different shape, of a lower quality, spray when the fuel tank cap is opened.
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This can result in serious injuries. ► Stop work and contact your STIHL dealer ► Do not touch the cutting attachment. for assistance. ► Start the engine as described in this instruc‐...
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4 Safety Precautions English ► Take regular breaks. arrow). The user can lose control of the trim‐ ► If signs of circulation problems occur: Seek mer. This can result in serious or fatal injuries. medical advice. ► Hold the trimmer firmly with both hands. ■...
Fitting the Carrying Ring ► If the trimmer or the deflector require servic‐ ► Shut off the engine. ing or repairs: Contact your STIHL servicing dealer for assistance. ► Maintain the cutting attachment as descri‐ bed in the User Manual supplied with the cutting attachment being used or on the cutting attachment’s packaging.
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6 Assembling the Trimmer English Mounting the Loop Handle ► Shut off the engine. ► Push the deflector (1) into the guides on the gear housing as far as stop. ► Insert and tighten down the screws (2) firmly. 6.4.2 Removing the Deflector ►...
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English 6 Assembling the Trimmer Mounting and Removing the Mowing Head 6.6.1 Mounting the Mowing Head ► Shut off the engine. ► Place the thrust plate (2) on the shaft (3) so that its smaller diameter faces up. ► Fit the mowing head (1) on the shaft (3) and turn it counterclockwise.
This trimmer requires a fuel mixture of gasoline and two-stroke engine oil., in a ratio of 50:1. STIHL recommends you use STIHL MotoMix. If you mix the fuel yourself, use only STIHL two- stroke engine oil or another high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L- EGD.
English 9 Starting and Stopping the Engine engine oil in order to maintain emission limits over the machine’s service life. ► Make sure that the octane number of the gas‐ oline is at least 90 RON and the ethanol con‐ tent is not more than 10%.
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9 Starting and Stopping the Engine English ► Press the manual fuel pump bulb (1) at least ► Move the slide control (3) to position five times. and hold it there. ► Move the choke lever (2) to position ► Release the throttle trigger (5) and lockout ►...
► Shut off the engine. ► Attempt to pull the trigger without depressing the lockout lever. ► If the trigger can be pulled: Do not use your trimmer and contact your STIHL dealer for NOTICE assistance. There is a malfunction in the throttle trigger ■...
12 After Finishing Work English If you are using a metal cutting attachment: Automatic feed does not operate if the mowing ► Hold the trimmer firmly with your right hand on lines are shorter than 25 mm. the control handle – wrap your thumb around ►...
► Shut off the engine. Monthly ► Allow trimmer to cool down. ► Have fuel tank cleaned by a STIHL servicing ► Clean the trimmer with a damp cloth or STIHL dealer. resin solvent. ► Have pickup body (filter) in fuel tank cleaned ►...
► Screw the tube (1) of STIHL gear grease ► Back off the screw (3) 1.5 turns counterclock‐ into the filler hole. wise. ► Squeeze 5 g of STIHL gear grease into the The engine idles and the throttle cable adjust‐ gear housing. ment is correct.
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English 18 Troubleshooting Condition Cause Remedy Engine stops while Carburetor is iced up. ► Allow trimmer to warm up to +10°C. idling 18.2 Replacing the Air Filter ► Turn the low speed screw (L) clockwise as far as stop. The air filter cannot be cleaned. The air filter ►...
REACH 19 Specifications REACH is an EC regulation and stands for the 19.1 STIHL FS 235 R Trimmer Registration, Evaluation, Authorisation and Restriction of Chemical substances. – Displacement: 36.3 cc – Engine power to ISO 8893: 1.55 kW (2.1 bhp)
STIHL acces‐ 2000/14/EC, Annex VIII. sories. – Measured sound power level: 111 dB(A) STIHL recommends the use of original STIHL – Guaranteed sound power level: 113 dB(A) spare parts and accessories. The technical documents are stored at Despite ongoing market observation, STIHL is ANDREAS STIHL AG &...
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23 EC Declaration of Conformity English 0458-500-0121-B...
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