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3

General Instructions

To ensure correct operation, user has to read this instruction manual to make 

 

himself familiar with the handling of the brush cutter/string trimmer. Users 

insufficiently informed will risk danger to themselves as well as others due to 

improper handling.
It is recommended only to lend the brush cutter/string trimmer to people who 

 

have proven to be experienced with brush cutter/string trimmers.

  Always hand over the instruction manual.

First users should ask the dealer for basic instructions to familiarize oneself 

 

with the handling of an engine powered cutter.
Children and young persons aged under 18 years must not be allowed to 

 

operate the brush cutter/string trimmer. Persons over the age of 16 years 

may however use the device for the purpose of being trained only whilst 

under supervision of a qualified trainer.

Use brush cutter/string trimmers with the utmost care and attention.

 

Operate the brush cutter/string trimmer only if you are in good physical 

 

condition. 

Perform all work calmly and carefully. The user has to accept liability for 

others.
Never use the brush cutter/string trimmer after consumption of alcohol or 

 

drugs, or if feeling tired or ill.
National regulation can restrict the use of the machine.

 

 WARNING:  This power tool produces an electromagnetic field during 

operation. 

This field may under some circumstances interfere with active or 

passive medical implants. To reduce the risk of serious or fatal 

injury, we recommend persons with medical implants to consult 

their physician and the medical implant manufacturer before 

operating this machine.

Intended use of the machine

The brush cutter/string trimmer is only intended for cutter grass, weeds, 

 

bushes, undergrowth it should not be used for any other purpose such as 

Edging or hedge cutting as this may cause injury.

Personal protective equipment

The clothing worn should be functional and appropriate, i.e. it should be tight-

 

fitting but not cause hindrance. Do not wear either jewelry or clothing which 

could become entangled with bushes or shrubs.
In order to avoid either head, eye, hand or foot injuries as well as to protect 

 

your hearing the following protective equipment and protective clothing must 

be used during operation of the brush cutter/string trimmer.
Always wear a helmet where there is a risk of falling objects. The protective 

 

helmet (1) is to be checked at regular intervals for damage and is to be 

replaced at the latest after 5 years. Use only approved protective helmets.
The visor (2) of the helmet (or alternatively goggles) protects the face from 

 

flying debris and stones. During operation of the brush cutter/string trimmer 

always wear goggles, or a visor to prevent eye injuries.
Wear adequate noise protection equipment to avoid hearing impairment (ear 

 

muffs (3), ear plugs etc.).

The work overalls (4) protect against flying stones and debris. We strongly 

 

recommend that the user wears work overalls.
Special gloves (5) made of thick leather are part of the prescribed equipment 

 

and must always be worn during operation of the brush cutter/string trimmer.
When using the brush cutter/string trimmer, always wear sturdy shoes (6) 

 

with a non-slip sole. This protects against injuries and ensures a good footing.

 Residual risks

Even when the power tool is used as prescribed it is not possible to eliminate all 

residual risk factors. The following hazards may arise in connection with the 

power tool’s construction and design:

1. Damage to lungs if an effective dust mask is not worn.

2. Damage to hearing if effective hearing protection is not worn.

3.  Damages to health resulting from vibration emission if the power tool is being 

used over longer period of time or not adequately managed and properly 

maintained.

Starting up the brush cutter

Please make sure that there are no children or other people within a working 

 

range of 15 meters (50 ft), also pay attention to any animals in the working 

vicinity.
Before use always check that the brush cutter/string trimmer is safe for 

 

operation:   

Check the security of the cutting tool, the control lever for easy action and 

check for proper functioning of the control lever lock.
Rotation of the cutting tool during idling speed is not allowed. Check with your 

 

dealer for adjustment if in doubt. Check for clean and dry handles and test 

the function of the start/stop switch.

15 Meters

Diagrammatic figure

SAFETY INSTRUCTIONS

Summary of Contents for MS-24 U

Page 1: ...r string trimmer into operation and strictly observe the safety regulations Preserve instruction manual carefully Wichtlg Bitte lesen Sie dieses Anweisungshandbuch sorgf ltig durch bevor Sie die Motor...

Page 2: ...d 12 Fuels Refuelling 13 Correct handling of machine 14 Points in operation and how to stop 15 Resharpening the cutting tool 16 Servicing instructions 18 Storage 20 You will note the following symbols...

Page 3: ...hand or foot injuries as well as to protect your hearing the following protective equipment and protective clothing must be used during operation of the brush cutter string trimmer Always wear a helm...

Page 4: ...operate the engine with faulty exhaust muffler Shut off the engine during transport When transporting the equipment always attach the cover to the cutting blade Ensure safe position of the brush cutt...

Page 5: ...th the risk of injuries Kickback prevention To avoid kickbacks observe the following Operation within a blade segment between 12 and 2 o clock presents positive hazards especially when using metal cut...

Page 6: ...ay experience injury to blood vessels or the nervous system Vibration may cause the following symptoms to occur in the fingers hands or wrists Falling asleep numbness tingling pain stabbing sensation...

Page 7: ...eed 4 100 min 300 min Gear ratio 14 19 Fuel Mixed gas Gasoline Two stroke Engine Oil 50 1 Volume fuel tank 0 5 L Vibration tested according to ISO 22867 Max ah 4 599 m s2 K 1 5 m s2 Noise tested accor...

Page 8: ...ewind Starter 3 Air Cleaner 4 I O Switch on off 5 Spark Plug 6 Exhaust Muffler 7 Clutch Case 8 Waist Pad 9 Hanger 10 Handle 11 Control Lever 12 Control Cable 13 Shaft 14 Protector Cutting tool guard 1...

Page 9: ...n the right and left by Allen wrench supplied How to mount the control cable Remove the air cleaner cover Put the control cable 5 into the adjusting cable 6 Shift the swivel 7 and put the cable into t...

Page 10: ...upplied Adjust the handle to an easy to operate position and tighten securely the four hexagon socket bolts uniformly on the right and left by Allen wrench MOUNTING OF HANDLE Throttle cable of control...

Page 11: ...nylon cutting head hits against a stone during operation stop the engine and check the nylon cutting head immediately Star Blade Nylon cutting head Protector for metal blades Protector for cord cutter...

Page 12: ...that the guide of the receiver washer 3 fits in the arbor hole in the cutter blade Install the clamp washer 2 and secure the cutter blade with the nut 1 Tightening torque 13 23 N m NOTE Always wear gl...

Page 13: ...environment In addition a long service life and a reliable operation with a minimum emission of exhaust gases is guaranteed It is absolutely essential to observe a mixture ratio of 50 1 specified 2 s...

Page 14: ...side of the release button with one hand the machine can be released quickly from the operator in the event of emergency e g occur spark smoking or vibrate abnormally Be extremely careful to maintain...

Page 15: ...s retracted slowly Repeat the starting operation until initial ignitions are heard When the engine start return the choke lever to Please note that the choke lever will return to position automaticall...

Page 16: ...o dry the electrode section of the spark plug Caution during operation If the throttle lever is opened fully in a no load operation the engine rotation is increased to 10 000 min 1 or more Never opera...

Page 17: ...too short to feed out automatically with the above procedure bump the knob of the nylon cutting head against the ground to feed out the nylon cord 3 If the nylon cord does not feed out with procedure...

Page 18: ...quipment the following servicing operations should be performed at regular intervals Daily checkup and maintenance Before operation check the machine for loose screws or missing parts Pay particular a...

Page 19: ...by carbon deposits carefully scratch the deposits out with a suitable tool Any maintenance of adjustment work that is not included and described in this manual is only to be performed by Authorized Se...

Page 20: ...ft seals damaged cylinder or piston rings defective or improper sealing of spark plug Mechanical fault Starter not engaging Broken starter spring broken parts inside of the engine Warm start problems...

Page 21: ...Montage des Schneidblattes oder des Nylonfaden Schneidkopfes 31 Kraftstoffe Nachf llen von Kraftstoff 32 Richtiger Umgang mit dem Ger t 33 Inbetriebnahme und Abstellen des Motors 34 Sch rfen der Schn...

Page 22: ...en beim Gebrauch der Motorsense des Rasentrimmers folgende Ausr stungsartikel f r Personenschutz verwendet werden Tragen Sie immer einen Schutzhelm um sich vor Verletzungen durch herabfallende Objekte...

Page 23: ...den Rasentrimmer f r den Transport so dass kein Benzin auslaufen kann Vergewissern Sie sich dass der Benzintank der Motorsense des Rasentrimmers leer ist bevor Sie das Ger t transportieren Entladen S...

Page 24: ...t ernsten Verletzungen f hren k nnte Ma nahmen zur Vermeidung von R ckst en Um R ckst e zu vermeiden beachten Sie folgende Punkte Erh hte Gefahr besteht wenn mit dem Schneidwerkzeug im Segmentbereich...

Page 25: ...Personen mit Durchblutungsst rungen zu starken mechanischen Schwingungen aussetzen kann es zu Sch digungen von Blutgef en und oder Nervensystem kommen Folgende Symptome k nnen durch Vibrationen an Fin...

Page 26: ...in Getriebe bersetzung 14 19 Kraftstoff Ottokraftstoff l Gemisch Ottokraftstoff 2 Takt Motor l 50 1 Fassungsverm gen Kraftstofftank 0 5 L Vibrationen getestet nach ISO 22867 Max ah 4 599 m s2 K 1 5 m...

Page 27: ...auf 3 Luftreiniger 4 I O Schalter Ein Aus 5 Z ndkerze 6 Auspuffd mpfer 7 Kupplungsgeh use 8 H ftpolster 9 Aufh nger 10 Haltegriff 11 Gashebel 12 Gaszug 13 Welle 14 Schutzvorrichtung Schutz f r Schneid...

Page 28: ...wei Schrauben 1 gleichm ig fest Montieren des Gaszugs Nehmen Sie die Luftfilterabdeckung ab F hren Sie den Gaszug 5 durch die Einstellschraube 6 Ziehen Sie den Aufnahmenippel 7 etwas und setzen Sie de...

Page 29: ...gelieferten Sechskantkopfbolzen befestigen Den Griff auf eine leicht bedienbare Position einstellen und die vier Sechskantkopfbolzen einheitlich nach rechts und links mit Sechskantsteckschl ssel siche...

Page 30: ...pf w hrend der Arbeit gegen Steine oder andere feste Gegenst nde schl gt schalten Sie unverz glich den Motor aus und berpr fen Sie den Schneidkopf auf Besch digungen 4 Zahn Schlagblatt Nylonfaden Schn...

Page 31: ...lle so da die F hrung der Aufnahmescheibe 3 in das Dornloch im Schneidblatt pa t Setzen Sie die Klemmscheibe 2 ein und sichern Sie das Schneidblatt mit der Mutter 1 Anziehdrehmoment 13 23 N m ANMERKUN...

Page 32: ...ein Mischungsverh ltnis von nur 50 1 zum Schutz der Umwelt Zus tzlich wird eine lange Lebensdauer und ein zuverl ssiger Betrieb mit einer sehr geringen Emission von Abgasen garantiert Es ist von u ers...

Page 33: ...Sie beide Seiten der Freigabetaste mit einer Hand das Werkzeug wird im Notfall z b Funkenflug Rauch oder abnormale Schwingungen schnell vom Bediener getrennt Gehen Sie u erst vorsichtig vor damit Sie...

Page 34: ...angsam zur ckgezogen wird Wiederholen Sie den Anla vorgang bis der Motor anspringt Wenn der Motor l uft den Chokehebel auf die Position zur ckstellen Der Chokehebel wird automatisch auf zur ckgestellt...

Page 35: ...dkerze wieder ein Zu beachten w hrend des Betriebs Wenn der Bedienungshebel im Leerlauf vollst ndig ge ffnet wird erh ht sich die Motorumdrehung auf 10 000 Umdrehungen pro Minute oder mehr Betreiben S...

Page 36: ...rden kann tippen Sie den Nachstellknopf des M hkopfes gegen den Boden um Faden nachzuf hren 3 Falls weder mit Methode 1 noch 2 Nylonfaden nachgestellt werden kann muss der M hkopf mit neuem Faden best...

Page 37: ...ollten folgende Wartungsarbeiten in regelm igen Abst nden durchgef hrt werden T gliche Kontrolle und Wartung Pr fen Sie das Ger t vor dem Einsatz auf lose Schrauben oder fehlende Teile Achten Sie beso...

Page 38: ...toffablagerungen verstopft ist entfernen Sie die Ablagerungen sorgf ltig indem Sie diese mit einem geeigneten Werkzeug abkratzen Alle Wartungs oder Einstellarbeiten die nicht in diesem Handbuch enthal...

Page 39: ...rbelwellendichtungen besch digt Zylinder oder Kolbenringe schadhaft oder keine ordnungsgem e Dichtung der Z ndkerze Mechanischer Fehler Anlasser arbeitet nicht Defekte Anlasserfeder defekte Teile im M...

Page 40: ...DOLMAR GmbH Postfach 70 04 20 D 22004 Hamburg Germany http www dolmar com DOLMAR GmbH Postfach 70 04 20 D 22004 Hamburg Germany http www dolmar com MS 24U EN D 1012 ALA...

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