Jonsered GC2123 Operator's Manual

Oper

ator′s manual

Please read the oper

ator’s manual carefully and make sure you understand the instructions before using the machine.

–

English

KEY TO SYMBOLS

Symbols

ARNING! A clearing saw, brushcutter or trimmer can be dangerous if used incorrectly or carelessly, and can cause serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of this operator’s manual.

Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.

Always wear:

• A protective helmet where there is a risk

of falling objects

• Approved hearing protection

• Approved eye protection

Max.

speed of output shaft, rpm

This product is in accordance with applicable EC directives.

Watch out for thrown objects and ricochets.

The operator of the machine must ensure, while working, that no persons or animals come closer than 15 metres.

Machines ﬁtted with saw blades or grass blades can be thrown violently to the side when the blade comes into contact with a ﬁxed object. This is called blade thrust. The blade is capable of amputating an arm or leg. Always keep people and animals at least 15 metres from the machine.

Arro

ws which show limits for handle

positioning.

Always wear approved protective gloves.

Wear sturdy, non-slip boots.

Only use non-metallic, ﬂexible cutting attachments, i.e. trimmer heads with trimmer cord.

Noise emission to the en

vironment according to the European Community’s Directive. The machine’s emission is speciﬁed in chapter Technical data and on label.

Other symbols/decals on the mac

hine refer to special certiﬁcation requirements for certain markets.

Switch off the engine b

y moving the stop switch to the STOP position before carrying out any checks or maintenance.

Alw

ays wear approved protective gloves.

Regular cleaning is required.

Visual chec

50FT

15 m

50FT

15 m

English

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CONTENTS

Contents

Note the f

ollowing before starting:

Please read the oper

ator’s manual carefully.

KEY

TO SYMBOLS

Symbols

....................................................................... 2

CONTENTS

Contents

...................................................................... 3

Note the following before starting: ................................ 3

INTR

ODUCTION

Dear Customer

, ............................................................ 4

WHA

T IS WHAT?

What is what on the br

ush cutter? ............................... 5

GENERAL SAFETY PRECA

UTIONS

Impor

tant ...................................................................... 6

Personal protective equipment ..................................... 6

Machine′s safety equipment ........................................ 7

Cutting equipment ........................................................ 8

ASSEMBL

Fitting the main body

................................................... 10

Connecting throttle cable and stop switch wires .......... 10

Fitting the handle ......................................................... 10

Assembling the cutting equipment ............................... 11

FUEL HANDLING

Fuel saf

ety ................................................................... 13

Fuel .............................................................................. 13

Fuelling ........................................................................ 14

ARTING AND STOPPING

Chec

k before starting ................................................... 15

Starting and stopping ................................................... 15

ORKING TECHNIQUES

Gener

al working instructions ....................................... 17

MAINTENANCE

Carb

urettor ................................................................... 20

Mufﬂer .......................................................................... 20

Cooling system ............................................................ 21

Spark plug .................................................................... 21

Air ﬁlter ......................................................................... 21

Gear ............................................................................. 22

Maintenance schedule ................................................. 23

TECHNICAL D

ATA

echnical data .............................................................. 24

EC-declaration of conformity ........................................ 25

ARNING! Long-term exposure to noise can result in permanent hearing impairment. So always use approved hearing protection.

ARNING! Under no circumstances may the design of the machine be modiﬁed without the permission of the manufacturer. Always use genuine accessories. Non-authorized modiﬁcations and/or accessories can result in serious personal injury or the death of the operator or others.

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English

INTR

ODUCTION

Dear Customer

Cong

ratulations on your choice to buy a Jonsered product!

We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to come. The purchase of one of our products gives you access to professional help with repairs and service whenever this may be necessary. If the retailer who sells your machine is not one of our authorised dealers, ask for the address of your nearest service workshop.

It is our wish that you will be satisﬁed with your product and that it will be your companion for a long time. Think of this operator′s manual as a valuable document. By following its

′

content (using, service, maintenance etc) the life span and the second-hand value

of the machine can be extended. If you will sell this machine, make sure that the buyer will get the operator

′

s manual.

Good luck on using your Jonsered machine!

Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice.

English

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WHA

T IS

WHA

What is what on the brush cutter?

6 74 5

2 3

21 22

14 13 1211

Trimmer head

2 Bevel gear

3 Grease ﬁller cap, bevel gear

4 Cord cutter

5 Cutting attachment guard

6 Guard extension

7 Shaft

8 Loop handle

9 J-handle

10 Throttle control

11 Stop switch

12 Throttle lock

13 Start throttle button

14 Harness support hook

15 Starter handle

16 Fuel tank

17 Choke control

18 Air purge

19 Air ﬁlter cover

20 Clutch cover

21 Cylinder cover

22 Spark plug cap and spark plug

23 Spanner

24 Locking pin

25 Combination spanner

26 Operator′s manual

27 Harness

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English

GENERAL SAFETY PRECA

UTIONS

Impor

tant

Personal protective equipment

HELMET

A protectiv

e helmet where there is a risk of falling objects

HEARING PROTECTION

Wear hearing protection that provides adequate noise reduction.

EYE PROTECTION

Always wear approved eye protection. If you use a visor then you must also wear approved protective goggles. Approved protective goggles must comply with standard ANSI Z87.1 in the USA or EN 166 in EU countries.

GLOVES

Gloves should be worn when necessary, e.g., when ﬁtting cutting attachments.

BOOTS

Wear boots with steel toe-caps and non-slip sole.

CLOTHING

Wear clothes made of a strong fabric and avoid loose clothing that can catch on twigs and branches. Always wear heavy, long pants. Do not wear jewellery, shorts sandals or go barefoot. Secure hair so it is above shoulder level.

FIRST AID KIT

Always have a ﬁrst aid kit nearby.

IMPORTANT!

The machine is only designed for trimming grass.

The only accessories you can operate with this engine unit are the cutting attachments we recommend in the chapter on Technical data.

Never use the machine if you are tired, if you have drunk alcohol, or if you are taking medication that could affect your vision, your judgement or your co-ordination.

Wear personal protective equipment. See instructions under the heading ”Personal protective equipment”.

Never use a machine that has been modiﬁed in any way from its original speciﬁcation.

Never use a machine that is faulty. Carry out the checks, maintenance and service instructions described in this manual. Some maintenance and service measures must be carried out by trained and qualiﬁed specialists. See instructions under the heading Maintenance.

All covers, guards and handles must be ﬁtted before starting. Ensure that the spark plug cap and ignition lead are undamaged to avoid the risk of electric shock.

The machine operator must ensure that no people or animals come closer than 15 metres while working. When several operators are working in the same area the safety distance should be at least twice the tree height and no less than 15 metres.

ARNING! This machine 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.

ARNING! Running an engine in a conﬁned or badly ventilated area can result in death due to asphyxiation or carbon monoxide poisoning.

IMPOR

TANT!

A clearing saw, brushcutter or trimmer can be dangerous if used incorrectly or carelessly, and can cause serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of this operator’s manual.

You must use approved personal protective equipment whenever you use the machine. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your dealer for help in choosing the right equipment.

ARNING! Listen out for warning signals or shouts when you are wearing hearing protection. Always remove your hearing protection as soon as the engine stops.

English

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GENERAL SAFETY PRECA

UTIONS

Mac

hine′s safety equipment

This section descr

ibes the machine′s safety equipment, its purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. See the ”What is what?” section to locate where this equipment is positioned on your machine.

The life span of the machine can be reduced and the risk of accidents can increase if machine maintenance is not carried out correctly and if service and/or repairs are not carried out professionally. If you need further information please contact your nearest service workshop.

Thr

ottle lockout

The throttle loc

kout is designed to prevent accidental operation of the throttle control. When you press the lock (A) (i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle control and the throttle lockout both move back to their original positions. This movement is controlled by two independent return springs. This arrangement means that the throttle control is automatically locked at the idle setting.

Make sure the throttle control is locked at the idle setting when the throttle lockout is released.

Press the throttle lockout and make sure it returns to its original position when you release it.

Check that the throttle control and throttle lockout move freely and that the return springs work properly.

See instructions under the heading Start. Start the hedge trimmer and apply full throttle. Release the throttle trigger and check that the blades stop and remain stationary. If the blades move when the throttle trigger is in the idle position then the carburettor idle setting must be adjusted. See instructions under the heading Maintenance.

Stop s

witch

Use the stop s

witch to switch off the engine.

Start the engine and make sure the engine stops when you move the stop switch to the stop setting.

Mufﬂ

The m

ufﬂer is designed to keep noise levels to a minimum and to direct exhaust fumes away from the user. A mufﬂer ﬁtted with a catalytic converter is also designed to reduce harmful exhaust gases.

IMPORTANT!

All servicing and repair work on the machine requires special training. This is especially true of the machine

′

s safety equipment. If your machine fails any of the checks described below you must contact your service agent. When you buy any of our products we guarantee the availability of professional repairs and service. If the retailer who sells your machine is not a servicing dealer, ask him for the address of your nearest service agent.

ARNING! Never use a machine with faulty safety equipment. The machine’s safety equipment must be checked and maintained as described in this section. If your machine fails any of these checks contact your service agent to get it repaired.

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English

GENERAL SAFETY PRECA

UTIONS

In countr

ies that have a warm and dry climate there is a signiﬁcant risk of ﬁre. We therefore ﬁt certain mufﬂers with a spark arrestor mesh. Check whether the mufﬂer on your machine is ﬁtted with this kind of mesh.

For mufﬂers it is very important that you follow the instructions on checking, maintaining and servicing your machine.

Never use a machine that has a faulty mufﬂer.

Regularly check that the mufﬂer is securely attached to the machine.

If the mufﬂer on your machine is ﬁtted with a spark arrestor mesh this must be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage.

Loc

king nut

A loc

king nut is used to secure some types of cutting

attachment.

When ﬁtting, tighten the nut in the opposite direction to the direction of rotation of the cutting attachment. To remove it, undo the nut in the same direction as the cutting attachment rotates. (CAUTION! The nut has a left-hand thread.) Tighten the nut using the socket spanner.

The nylon lining inside the locking nut must not be so worn that you can turn it by hand. The lining should offer a resistance of at least 1.5 Nm. The nut should be replaced after it has been put on approx. 10 times.

Cutting equipment

This section descr

ibes how to choose and maintain your

cutting equipment in order to:

• Reduce the risk of blade thrust.

• Obtain maximum cutting performance.

• Extend the life of cutting equipment.

WARNING! Mufﬂers ﬁtted with catalytic converters get very hot during use and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of ﬁre!

WARNING! The inside of the mufﬂer contain chemicals that may be carcinogenic. Avoid contact with these elements in the event of a damaged mufﬂer.

WARNING! Bear in mind that:

The exhaust fumes from the engine are hot and may contain sparks which can start a ﬁre. Never start the machine indoors or near combustible material!

IMPORTANT!

Only use cutting attachments with the guards we recommend! See the chapter on Technical data.

Refer to the instructions for the cutting attachment to check the correct way to load the cord and the correct cord diameter.

Keep the teeth of the blade correctly sharpened! Follow our recommendations. Also refer to the instructions on the blade packaging.

WARNING! Always stop the engine before doing any work on the cutting attachment. This continues to rotate even after the throttle has been released. Ensure that the cutting attachment has stopped completely and disconnect the HT lead from the spark plug before you start to work on it.

English – 9

GENERAL SAFETY PRECAUTIONS

Cutting equipment

Grass blades and grass cutters are intended for cutting coarse grass.

A trimmer head is intended for trimming grass.

General rules

Only use cutting attachments with the guards we recommend! See the chapter on Technical data.

Keep the teeth of the blade correctly sharpened! Follow our instructions and use the recommended ﬁle gauge. An incorrectly sharpened or damaged blade increases the risk of accidents.

Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced.

Sharpening grass cutters and grass blades

• See the cutting attachment packaging for correct sharpening instructions. Sharpen blades and cutters using a single-cut ﬂat ﬁle.

• Sharpen all edges equally to maintain the balance of the blade.

Trimmer head

• Only use the recommended trimmer heads and trimmer cords. These have been tested by the manufacturer to suit a particular engine size. This is especially important when a fully automatic trimmer head is used. Only use the recommended cutting attachment. See the chapter on Technical data.

• Smaller machines generally require small trimmer heads and vice versa. This is because when clearing using a cord the engine must throw out the cord radially from the trimmer head and overcome the resistance of the grass being cleared.

• The length of the cord is also important. A longer cord requires greater engine power than a shorter cord of the same diameter.

• Make sure that the cutter on the trimmer guard is intact. This is used to cut the cord to the correct length.

• To increase the life of the cord it can be soaked in water for a couple of days. This will make the line tougher so that it lasts longer.

WARNING! Using an incorrect cutting attachment or an incorrectly sharpened blade increases the risk of blade thrust.

WARNING! Always discard a blade that is bent, twisted, cracked, broken or damaged in any other way. Never attempt to straighten a twisted blade so that it can be reused. Only use original blades of the speciﬁed type.

IMPORTANT!

Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration.

10 – English

ASSEMBLY

Fitting the main body

Connect the engine (A) to the tube (B) with four screws (C).

Connecting throttle cable and stop switch wires

1 Insert the throttle cable (A) through the carburettor bracket

(B), then screw the cable adjuster sleeve (C) into the carburettor bracket fully.

2 Position the slotted ﬁtting (D) on the carburettor so the

recessed hole (E) for the cable lug (F) is away from the cable adjuster sleeve.

3 Rotate the carburettor throttle cam and slip the throttle

cable through the slot in the slotted ﬁtting, making sure the cable lug drops into the recessed hole.

4 Operate the throttle trigger a few times to make sure that

it works correctly.

5 Adjust the cable adjuster sleeve so the stop on the

carburettor throttle cam just contacts the throttle stop and the cable position keep 1-2 mm play between the cable lug and the slotted ﬁtting when the throttle trigger is fully depressed.

6 When the throttle cable is adjusted correctly, tighten the

locking nut (G).

7 Plug the stop switch wires (H) into the matching

connectors from the engine. Note that wire polarity is not important.

Fitting the handle

1 Position the handle on the shaft. Note that the handle

must be mounted below the arrow on the shaft.

2 Attach the J-handle to the loop handle using the 4 screws,

as shown.

3 Now make a ﬁnal adjustment, with the machine hanging

from the harness, to obtain the most comfortable working position. Tighten the screws.

1-2mm

+ 22 hidden pages

Jonsered GC2123 Operator's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual