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11 Operating the Trimmer

11.1

Adjusting Carburetor for Opera‐

tion at High Altitude

If you use the trimmer at high altitude, the engine

will not deliver optimum power. The carburetor

setting can be adjusted to obtain optimum

engine power.

► Start the engine.

► Warm up the engine by opening and closing

the throttle for about 1 minute.

0000-GXX-3132-A0

H

NOTICE

■ If the trimmer is again used at a low altitude,

the engine may overheat.

► Carry out the standard setting.

► Rotate the high speed screw H clockwise

until the engine delivers optimum power.

11.2

Holding and Controlling the

Trimmer

2

1

0000-GXX-7807-A0 

► Connect the carrying ring (2) to the carabi‐

ner (1).

0000-GXX-7850-A0 

► Hold the trimmer firmly with your right hand on

the control handle – wrap your thumb around

the handle.

► Hold the trimmer firmly with your the left hand

on the left handle – wrap your thumb around

the handle.

11.3

Mowing

The cutting height is determined by the distance

of the cutting attachment from the ground.

A

B

0000-GXX-4731-A2

Mowing with a mowing head (A)

► Swing the brushcutter steadily back and forth

in an arc.

► Move forward slowly in a controlled manner.
Mowing with a grass cutting blade or brush

knife (B)

► Mow with the left-hand side on the metal cut‐

ting attachment.

► Move forward slowly in a controlled manner.

11.4

Saws with a circular saw blade

0000-GXX-3042-A0

► Support the left side of the deflector against

the stem.

► Cut through the stem at full speed.

► A safety distance of at least 2 tree lengths to

the next work area.

11.5

Adjusting Nylon Line

11.5.1

Line Feed on AutoCut Mowing Head

► Tap the rotating mowing head on the ground.

About 30 mm of fresh nylon line is advanced.

The line limiting blade in the deflector trims the

mowing lines to the correct length.

11 Operating the Trimmer

English

0458-507-0121-B

17

Summary of Contents for FS 235

Page 1: ...FS 235 Instruction Manual 2 23...

Page 2: ...s 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 th...

Page 3: ...ontrol For starting running and stopping the engine 16 Throttle Trigger Lockout Unlocks the throttle trigger 17 Throttle Trigger Controls engine speed 18 Carrying Ring For attaching carrying system 19...

Page 4: ...is started with the choke lever in this position Engine is made ready for start with the choke lever in this position This symbol shows the direction of rotation of the cutting attachment This symbol...

Page 5: ...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 T...

Page 6: ...lammable materials 4 6 Safe Condition 4 6 1 Brushcutter The brushcutter is in a safe condition if the fol lowing points are observed The brushcutter is not damaged There is no fuel leaking from the tr...

Page 7: ...al cutting attachment not manufactured by STIHL is used it must not be heavier thicker of a different shape of a lower quality or larger in diameter than the largest metal cutting attachment approved...

Page 8: ...a ted or has aged Before refueling the brushcutter Thor oughly mix the fuel Use a mixture of gasoline and two stroke engine oil that is not older than 30 days STIHL MotoMix 5 years 4 8 Working WARNING...

Page 9: ...may be seriously injured Wait until the cutting attachment comes to a complete stop In an emergency the user may start to panic and forget to take off the carrying system This may result in serious in...

Page 10: ...cutting attach ment is not maintained or repaired as descri bed in this User Manual components may no longer function properly or safety devices may be rendered inoperative This can result in serious...

Page 11: ...ol handle 7 Remove the screw 9 Position the control handle 7 on the handle bar 3 so that the hole of the control han dle 7 is flush with the handlebar 3 and the throttle trigger 8 is facing the gear h...

Page 12: ...down the mowing head 1 firmly by hand Remove the stop pin 4 6 5 2 Removing the Mowing Head Shut off the engine Insert the stop pin in the bore as far as stop and hold it depressed Rotate the mowing he...

Page 13: ...ll harness 3 Adjust the shoulder strap 1 or full harness 3 so that the carabiner 2 is about a hand s width below your right hip 7 2 Adjusting the Bike Handle The bike handle can be set to different po...

Page 14: ...r Brazil 27 Make sure the two stroke engine oil you are using meets requirements Depending on the desired amount of fuel determine the correct amounts of two stroke engine oil and gasoline in a mixing...

Page 15: ...00 GXX 6451 A0 1 5 3 4 Press the manual fuel pump bulb 1 at least five times Move the choke lever 2 to position Press down the throttle trigger lockout 4 and hold it there Pull the throttle trigger 3...

Page 16: ...the choke lever to position The engine stops Do not use your trimmer and contact your STIHL dealer for assistance There is a malfunction in the slide control 10 Testing the Trimmer 10 1 Checking the C...

Page 17: ...with your the left hand on the left handle wrap your thumb around the handle 11 3 Mowing The cutting height is determined by the distance of the cutting attachment from the ground A B 0000 GXX 4731 A...

Page 18: ...mer properly balanced by the drive tube with the cutting attachment behind you Transporting the trimmer in a vehicle Secure the trimmer to prevent turnover and movement 14 Storing 14 1 Storing the Bru...

Page 19: ...with the cutting attachment you are using 17 Repairing 17 1 Repairing the Trimmer and Cutting Attachment The trimmer and cutting attachment cannot be repaired by the user If the trimmer or cutting att...

Page 20: ...tighten down the spark plug 2 firmly Press the spark plug boot 1 firmly home 18 4 Standard Setting Shut off the engine 0000 GXX 2946 A0 H L Turn the high speed screw H counterclock wise as far as stop...

Page 21: ...accelerates Back off the screw 3 1 5 turns counterclock wise The engine idles and the throttle cable adjust ment is correct Shut off the engine 19 Specifications 19 1 STIHL FS 235 Trimmer Displacement...

Page 22: ...ystem Grass cutting blade 230 2 230 mm dia Grass cutting blade 230 4 230 mm dia Grass cutting blade 230 8 230 mm dia Grass cutting blade 260 2 260 mm dia Universal deflector without skirt Shoulder str...

Page 23: ...ns valid on the date of produc tion EN ISO 11806 1 EN 55012 and EN 61000 6 1 The measured and guaranteed sound power lev els were determined according to Directive 2000 14 EC Annex VIII Measured sound...

Page 24: ...www stihl com 04585070121B 04585070121B 0458 507 0121 B 0458 507 0121 B...

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