Husqvarna 122C, 122LK Operators Manual

Operator’s manual

Manuel d’utilisation

Manual de instrucciones

122C 122LK

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

Lire attentivement et bien assimiler le manuel d’utilisation avant d’utiliser la machine.

Lea detenidamente el manual de instrucciones y asegúrese de entender su contenido antes de utilizar la máquina.

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SSSSppppaaaannnniiiisssshhhh ((((55552222----77778888))

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KEY TO SYMBOLS

Symbols on the machine and/or in the manual:

WARNING! Clearing saws, brushcutters and trimmers can be dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of the operator’s manual.

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

Always wear: Wear a protective helmet where there

is a risk of falling objects

• Approved hearing protection

• Approved eye protection Max. speed of output shaft, rpm

10000

Watch out for thrown objects and ricochets.

Primer bulb

Set the choke control in the choke position.

Other symbols/decals on the machine refer to special certiﬁcation requirements for certain markets.

The engine is switched off by moving the stop switch to the stop position. CAUTION! The stop switch automatically returns to the start position. In order to prevent unintentional starting, the spark plug cap must be removed from the spark plug when assembling, checking and/or performing maintenance.

Always wear approved protective gloves.

Regular cleaning is required.

The operator of the machine must ensure, while working, that no persons or animals come closer than 15 meters (50 ft.).

Always wear approved protective gloves.

Wear sturdy, non-slip boots.

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

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Visual check.

15 m

50FT

The engine exhaust from this product contains chemicals known to the State

of California to cause cancer, birth

defects or other reproductive harm.

INTRODUCTION

Dear customer!

Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant. During over 300 years of continuous operation, the Husqvarna factory has produced a lot of different products, from wood stoves to modern kitchen appliances, sewing machines, bicycles, motorcycles etc. In 1956, the ﬁrst motor driven lawn mowers appeared, followed by chainsaws in 1959, and it is within this area Husqvarna is working today.

Today Husqvarna is one of the leading manufacturers in the world of forest and garden products, with quality as our highest priority. We develop, manufacture and market high quality motor driven products for forestry and gardening as well as for building and construction industry.

Your purchase 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 authorized dealers, ask for the address of your nearest servicing dealer.

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 ever lend or sell this machine, make sure that the borrower or buyer gets the operator′s manual, so they will also know how to properly maintain and use it.

Thank you for using a Husqvarna product. Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and

appearance of products without prior notice.

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CONTENTS

Contents Note the following before

KEY TO SYMBOLS

Symbols on the machine and/or in the manual: .... 2

INTRODUCTION

Dear customer! ..................................................... 3

CONTENTS

Contents ............................................................... 4

WHAT IS WHAT?

What is what on the grass trimmer? ..................... 5

GENERAL SAFETY PRECAUTIONS

Note the following before starting: ........................ 4

Important .............................................................. 6

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

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

Cutting equipment ................................................. 9

ASSEMBLY

Fitting the loop handle .......................................... 11

Fitting the trimmer guard and trimmer head ......... 11

Assembling and dismantling the two-piece shaft .. 12

FUEL HANDLING

Fuel safety ............................................................ 13

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

Fueling .................................................................. 14

STARTING AND STOPPING

Check before starting ............................................ 15

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

WORKING TECHNIQUES

General working instructions ................................ 17

MAINTENANCE

Carburetor ............................................................. 19

Mufﬂer ................................................................... 19

Cooling system ..................................................... 20

Spark plug ............................................................. 20

Two-piece shaft .................................................... 20

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

Maintenance schedule .......................................... 22

TECHNICAL DATA

Technical data ....................................................... 23

FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY STATEMENT

YOUR WARRANTY RIGHTS AND OBLIGATIONS 25

starting:

• Please read the operator’s manual carefully.

• Check that the cutting equipment is correctly ﬁtted and adjusted.

• Maintenance, replacement, or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual.

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

WARNING! 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.

Your warranty may not cover damage or liability caused by the use of nonauthorized accessories or replacement parts.

WARNING! 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.

The Emissions Compliance Period referred to on the Emission Compliance label indicates the number of operating hours for which the engine has been shown to meet Federal and California emissions requirements.

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WHAT IS WHAT?

122LK

122C

What is what on the grass trimmer?

1 Trimmer head 2 Cutting attachment guard 3 Shaft 4 Loop handle 5 Throttle trigger 6 Stop switch 7 Throttle trigger lockout 8 Spark plug cap and spark plug 9 Starter handle 10 Fuel tank

11 Air ﬁlter cover 12 Air purge 13 Choke control 14 Operator’s manual 15 Combination spanner 16 Starter housing 17 Shaft coupling 18 Bevel gear 19 Grease ﬁller cap, bevel gear 20 Drive disc (122LK)

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GENERAL SAFETY PRECAUTIONS

Important

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.

National or local regulations may regulate the use. Comply to given regulations.

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 safety 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 15 metres.

Do an overall inspection of the machine before use, see maintenance schedule.

WARNING! 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 consult their physician and the medical implant manufacturer before operating this machine.

WARNING! Never allow children to use or be in the vicinity of the machine. As the machine is equipped with a springloaded stop switch and can be started by low speed and force on the starter handle, even small children under some circumstances can produce the force necessary to start the machine. This can mean a risk of serious personal injury. Therefore remove the spark plug cap when the machine is not under close supervision.

Personal protective equipment

IMPORTANT! A grass 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.

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

HELMET Wear a protective helmet where there is a risk of falling

objects

HEARING PROTECTION Wear hearing protection that provides adequate noise

reduction.

6 – English

WARNING! Running an engine in a conﬁned or badly ventilated area can

result in death due to asphyxiation or carbon monoxide poisoning.

EYE PROTECTION Always wear approved eye protection. If you use a visor

then you must also wear approved protective goggles.

GENERAL SAFETY PRECAUTIONS

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 sturdy, non-slip boots.

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.

Machine ′′

This section describes 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 servicing dealer.

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.

′′

s safety equipment

WARNING! 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.

WARNING! Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experience symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin colour or condition. These symptoms normally appear in the ﬁngers, hands or wrists. The risk increases at low temperatures.

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GENERAL SAFETY PRECAUTIONS

Throttle trigger lockout

The throttle lockout 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.

Stop switch

Use the stop switch to switch off the engine.

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

Cutting attachment guard

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

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

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

See instructions under the heading Start. Start the machine and apply full throttle. Release the throttle and check that the cutting attachment stops and remains at a standstill. If the cutting attachment rotates with the throttle in the idle position then the carburettor idle setting must be checked. See instructions under the heading Maintenance.

This guard is intended to prevent loose objects from being thrown towards the operator. The guard also protects the operator from accidental contact with the cutting attachment.

Check that the guard is undamaged and not cracked. Replace the guard if it has been exposed to impact or is cracked.

Always use the recommended guard for the cutting attachment you are using. See chapter on Technical data.

WARNING! Never use a cutting attachment without an approved guard. See the chapter on Technical data. If an incorrect or faulty guard is ﬁtted this can cause serious personal injury.

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GENERAL SAFETY PRECAUTIONS

Mufﬂer

WARNING! Never use the machine indoors or in spaces lacking proper

ventilation. Exhaust fumes contain carbon monoxide, an odorless, poisonous and highly dangerous gas.

The mufﬂer 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.

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

screen will cause the engine to overheat and may lead to serious damage.

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!

Cutting equipment

This section describes how to choose and maintain your cutting equipment in order to:

• Obtain maximum cutting performance.

• Extend the life of cutting equipment.

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.

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 screen this must be cleaned regularly. A blocked

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 spark plug cap before you start to work on it.

WARNING! A faulty cutting attachment may increase the risk of accidents.

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GENERAL SAFETY PRECAUTIONS

Trimmer head

IMPORTANT! Always ensure the trimmer cord is wound tightly and

evenly around the drum, otherwise the machine will generate harmful vibration.

• 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 before use. This will make the cord tougher so that it lasts longer.

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ASSEMBLY

Fitting the loop handle

• Clip the loop handle onto the shaft. Note that the loop handle must be ﬁtted between the arrows on the shaft.

• Fit the bolt, securing plate and wing nut as shown in the diagram. Tighten the wing nut.

Fitting the trimmer guard and trimmer head

• Screw on the trimmer head (H) in the opposite direction to the direction of rotation.

• To dismantle, follow the instructions in the reverse order.

Fitting the trimmer guard and trimmer head

(122C)

• Fit the guard as shown in the diagram. Tighten securely.

(122LK)

• Fit the correct trimmer guard (A) for use with the trimmer head. Hook the trimmer guard/combination guard onto the ﬁtting on the shaft and secure with the bolt (L).

• Fit the drive disc (B) on the output shaft.

• Turn the output shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing.

• Insert the locking pin (C) in the hole to lock the shaft.

• Fit the dust cup on the shaft. The nut must be completely covered by the dust cup.

• Hold the dust cup with a spanner to prevent the shaft from rotating.

• Screw the trimmer head onto the shaft.

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ASSEMBLY

Assembling and dismantling the two-piece shaft (122LK)

• Push and hold the button (C). While securely holding the engine end, pull the attachment straight out of the coupling.

Assembly:

• Loosen the coupling by turning the knob counterclockwise.

• Align the tab of the attachment (A) with the arrow on the coupling (B).

• Push the attachment into the coupling until the attachment snaps into place.

Before using the unit, tighten the knob securely.

Dismantling:

• Loosen the coupling by turning the knob (at least 3 times).

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FUEL HANDLING

Fuel safety

Never start the machine: 1 If you have spilled fuel on it. Wipe off the spillage and

allow remaining fuel to evaporate.

2 If you have spilled fuel on yourself or your clothes,

change your clothes. Wash any part of your body that has come in contact with fuel. Use soap and water.

3 If the machine is leaking fuel. Check regularly for

leaks from the fuel cap and fuel lines. In the event of leakage, contact your service agent.

Transport and storage

• Store and transport the machine and fuel so that there is no risk of any leakage or fumes coming into contact with sparks or open ﬂames, for example, from electrical machinery, electric motors, electrical relays/ switches or boilers.

• When storing and transporting fuel always use approved containers intended for this purpose.

• When storing the machine for long periods the fuel tank must be emptied. Contact your local gas station to ﬁnd out where to dispose of excess fuel. Drain the tank into the appropriate containers and in a well ventilated area.

• Ensure the machine is cleaned and that a complete service is carried out before long-term storage.

• The transport guard must always be ﬁtted to the cutting attachment when the machine is being transported or in storage.

• Secure the machine during transport.

• In order to prevent unintentional starting of the engine, the spark plug cap must always be removed during long-term storage, if the machine is not under close supervision and when performing all service measures.

• Allow the machine to cool before putting it in storage.

WARNING! Take care when handling fuel. Bear in mind the risk of ﬁre, explosion

and inhaling fumes.

Fuel

CAUTION! The machine is equipped with a two-stroke

engine and must always be run using a mixture of gasoline and two-stroke engine oil. It is important to accurately measure the amount of oil to be mixed to ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture.

Gasoline

CAUTION! Always use a quality gasoline/oil mixture with

an octane rating of at least 87 octane ((RON+MON)/2). If your machine is equipped with a catalytic converter (see chapter on Technical data) always use a good quality unleaded gasoline/oil mixture. Leaded gasoline will destroy the catalytic converter.

Ethanol blended fuel, E10 may be used (max 10% ethanol blend). Using ethanol blends higher than E10 will create lean running condition which can cause engine damage.

This engine is certiﬁed to operate on unleaded gasoline.

• The lowest recommended octane grade is 87 ((RON+MON)/2). If you run the engine on a lower octane grade than 87 so-called knocking can occur. This gives rise to a high engine temperature and increased bearing load, which can result in serious engine damage.

• When working at continuous high revs a higher octane rating is recommended.

Husqvarna alkylate fuel

Husqvarna recommends the use of Husqvarna alkylate fuel for best performance. The fuel contains less harmful substances compared to regular fuel, which reduces harmful exhaust fumes. The fuel provides low amount of residues when combusted which keeps the engine parts cleaner and optimizes the engine life. Husqvarna alkylate fuel is not available in all markets.

Two-stroke oil

• For best results and performance use HUSQVARNA two-stroke engine oil, which is specially formulated for our air-cooled two stroke-engines.

• Never use two-stroke oil intended for water-cooled engines, sometimes referred to as outboard oil (rated TCW).

• Never use oil intended for four-stroke engines.

• A poor oil quality and/or too high oil/fuel ratio may jeopardise function and decrease the life time of the catalytic converters.

• Mixing ratio 50:1 (2%) with HUSQVARNA two-stroke oil.

WARNING! Fuel and fuel fumes are highly ﬂammable and can cause serious

injury when inhaled or allowed to come in contact with the skin. For this reason observe caution when handling fuel and make sure there is adequate ventilation.

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FUEL HANDLING

Gasoline, litre Two-stroke oil, litre

2% (50:1) 5 0,10 10 0,20 15 0,30 20 0,40

US gallon US ﬂ. oz.

1 2 1/2 2 1/2 6 1/2 5 12 7/8

Mixing

• Always mix the gasoline and oil in a clean container intended for fuel.

• Always start by ﬁlling half the amount of the gasoline to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of gasoline.

• Mix (shake) the fuel mixture thoroughly before ﬁlling the machine’s fuel tank.

• Do not mix more than one month’s supply of fuel at a time.

• If the machine is not used for some time the fuel tank should be emptied and cleaned.

WARNING! The catalytic converter mufﬂer gets very hot during and after

use. This also applies during idling. Be aware of the ﬁre hazard, especially when working near ﬂammable substances and/ or vapors.

Fueling

WARNING! Taking the following precautions, will lessen the risk of ﬁre:

Mix and pour fuel outdoors, where there are no sparks or ﬂames.

Do not smoke or place hot objects near fuel.

Always shut off the engine before refueling.

Always stop the engine and let it cool for a few minutes before refueling. Refuel in a well ventilated area. Never fuel the machine indoors.

When refuelling, open the fuel cap slowly so that any excess pressure is released gently.

Tighten the fuel cap carefully after refueling.

Always move the machine away from the refueling area and source before starting.

• Always use a fuel container with an anti-spill valve.

• If you have spilled fuel on it. Wipe off the spillage and allow remaining fuel to evaporate.

• Clean the area around the fuel cap. Contamination in the tank can cause operating problems.

• Ensure that the fuel is well mixed by shaking the container before ﬁlling the tank.

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STARTING AND STOPPING

Check before starting

• Check that the trimmer head and trimmer guard are not damaged or cracked. Replace the trimmer head or trimmer guard if they have been exposed to impact or are cracked.

• Never use the machine without a guard nor with a defective guard.

• All covers must be correctly ﬁtted and undamaged before you start the machine.

Starting and stopping

WARNING! The complete clutch cover and shaft must be ﬁtted before the machine is started, otherwise the clutch can come loose and cause personal injury.

Always move the machine away from the refueling area and source before starting. Place the machine on a ﬂat surface. Ensure the cutting attachment cannot come into contact with any object.

Make sure no unauthorised persons are in the working area, otherwise there is a risk of serious personal injury. The safety distance is 15 meters (50 ft.).

Starting

Primer bulb: Press the air purge repeatedly until fuel

begins to ﬁll the bulb. The bulb need not be completely ﬁlled.

Choke: Set the choke control in the choke position.

WARNING! When the engine is started with the choke in choke position the cutting attachment will start to rotate immediately.

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STARTING AND STOPPING

Hold the body of the machine on the ground using your left hand (CAUTION! Not with your foot!). Grip the starter handle, slowly pull out the cord with your right hand until you feel some resistance (the starter pawls grip), now quickly and powerfully pull the cord. Never wrap the

starter cord around your hand

Repeat pulling the start handle until the engine starts. When the engine starts, return choke control to run position and apply full throttle; the throttle will automatically disengage from the start setting.

CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended. This can damage the machine.

Stopping

Stop the engine by switching off the ignition.

CAUTION! The stop switch automatically returns to the start position. In order to prevent unintentional starting, the spark plug cap must be removed from the spark plug when assembling, checking and/or performing maintenance.

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WORKING TECHNIQUES

General working instructions

IMPORTANT! This section takes up the basic safety precautions for

working with a trimmer. If you encounter a situation where you are uncertain

how to proceed you should ask an expert. Contact your dealer or your service workshop.

Avoid all usage which you consider to be beyond your capability.

You must understand the difference between forestry clearing, grass clearing and grass trimming before use.

6 Always hold the machine with both hands. Hold the

machine on the right side of your body.

Basic safety rules

1 Look around you:

• To ensure that people, animals or other things cannot affect your control of the machine.

• To ensure that people, animals, etc., do not come into contact with the cutting attachment or loose objects that are thrown out by the cutting attachment.

• CAUTION! Do not use the machine unless you are able to call for help in the event of an accident.

2 Inspect the working area. Remove all loose objects,

such as stones, broken glass, nails, steel wire, string, etc. that could be thrown out or become wrapped around the cutting attachment.

3 Do not use the machine in bad weather, such as

dense fog, heavy rain, strong wind, intense cold, etc. Working in bad weather is tiring and often brings added risks, such as icy ground.

4 Make sure you can move and stand safely. Check the

area around you for possible obstacles (roots, rocks, branches, ditches, etc.) in case you have to move suddenly. Take great care when working on sloping ground.

7 Keep the cutting attachment below waist level. 8 Keep all parts of your body away from the rotating

cutting attachment. Keep all parts of your body away

from hot surfaces. 9 The engine must be switched off before moving. 10 Never put the machine down with the engine running

unless you have it in clear sight.

WARNING! Neither the operator of the machine nor anyone else may attempt to remove the cut material while the engine is running or the cutting equipment is rotating, as this can result in serious injury.

Stop the engine and cutting equipment before you remove material that has wound around the blade shaft as otherwise there is a risk of injury. The bevel gear can get hot during use and may remain so for a while afterwards. You could get burnt if you touch it.

WARNING! Watch out for thrown objects. Always wear approved eye protection. Never lean over the cutting attachment guard. Stones, rubbish, etc. can be thrown up into the eyes causing blindness or serious injury.

Keep unauthorized persons at a distance. Children, animals, onlookers and helpers should be kept outside the safety zone of 15 m. (50 ft.) Stop the machine immediately if anyone approaches. Never swing the machine around without ﬁrst checking behind you to make sure no-one is within the safety zone.

5 Keep a good balance and a ﬁrm foothold. Do not

overreach. Keep proper footing and balance at all times.

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WORKING TECHNIQUES

Basic working techniques

Always slow the engine to idle speed after each working operation. Long periods at full throttle without any load on the engine can lead to serious engine damage.

WARNING! Sometimes branches or grass get caught between the guard and

cutting attachment. Always stop the engine before cleaning.

Grass trimming with a trimmer head

Trimming

• Hold the trimmer head just above the ground at an angle. It is the end of the cord that does the work. Let the cord work at its own pace. Never press the cord into the area to be cut.

• The cord can easily remove grass and weeds up against walls, fences, trees and borders, however it can also damage sensitive bark on trees and bushes, and damage fence posts.

• Reduce the risk of damaging plants by shortening the cord to 10-12 cm and reducing the engine speed.

Clearing

• The clearing technique removes all unwanted vegetation. Keep the trimmer head just above the ground and tilt it. Let the end of the cord strike the ground around trees, posts, statues and the like. CAUTION! This technique increases the wear on the cord.

Cutting

• The trimmer is ideal for cutting grass that is difﬁcult to reach using a normal lawn mower. Keep the cord parallel to the ground when cutting. Avoid pressing the trimmer head against the ground as this can ruin the lawn and damage the tool.

• Do not allow the trimmer head to constantly come into contact with the ground during normal cutting. Constant contact of this type can cause damage and wear to the trimmer head.

Sweeping

• The fan effect of the rotating cord can be used for quick and easy clearing up. Hold the cord parallel to and above the area to be swept and move the tool side to side.

• When cutting and sweeping you should use full throttle to obtain the best results.

IMPORTANT! To avoid unbalance and vibrations in handles trimmer head cover need to be cleaned every time cord is reﬁlled. In addition, check other part of the head if needed to be cleaned.

• The cord wears quicker and must be fed forward more often when working against stones, brick, concrete, metal fences, etc., than when coming into contact with trees and wooden fences.

• When trimming and clearing you should use less than full throttle (80%) so that the cord lasts longer and to reduce the wear on the trimmer head.

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MAINTENANCE

Carburetor

Adjustment of the idle speed

Before any adjustments are made, make sure that the air ﬁlter is clean and the air ﬁlter cover is ﬁtted.

Adjust the idle speed using the idle adjustment screw T, if it is necessary to readjust. First turn the idle adjustment screw T clockwise until the cutting attachment starts to rotate. Then turn the screw counter clockwise until the cutting attachment stops. The idle speed is correctly adjusted when the engine will run smoothly in every position. The idle speed should also be well below the speed at which the cutting attachment starts to rotate.

Recommended idle speed: See the Technical data section.

WARNING! If the idle speed cannot be adjusted so that the cutting attachment

stops, contact your dealer/service workshop. Do not use the machine until it has been correctly adjusted or repaired.

Mufﬂer

CAUTION! Some mufﬂers are ﬁtted with a catalytic

converter. See chapter on Technical data to see whether your machine is ﬁtted with a catalytic converter.

The mufﬂer is designed to reduce the noise level and to direct the exhaust gases away from the operator. The exhaust gases are hot and can contain sparks, which may cause ﬁre if directed against dry and combustible material.

Some mufﬂers are equipped with a special spark arrestor screen. If your machine has this type of mufﬂer, you should clean the screen at least once a week. This is best done with a wire brush. On mufﬂers without a catalytic converter the screen should be cleaned weekly, or replaced if necessary. On mufﬂers ﬁtted with a catalytic converter the screen should be checked, and if necessary cleaned, monthly. If the screen is damaged it should be replaced. If the screen is frequently blocked, this can be a sign that the performance of the catalytic converter is impaired. Contact your dealer to inspect the mufﬂer. A blocked screen will cause the machine to overheat and result in damage to the cylinder and piston.

CAUTION! Never use a machine with a defective mufﬂer.

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MAINTENANCE

Cooling system

To keep the working temperature as low as possible the machine is equipped with a cooling system.

The cooling system consists of: 1 Air intake on the starter. 2 Cooling ﬁns on the cylinder. Clean the cooling system with a brush once a week, more

often in demanding conditions. A dirty or blocked cooling system results in the machine overheating which causes damage to the piston and cylinder.

Spark plug

mm). The spark plug should be replaced after about a month in operation or earlier if necessary.

CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder. Check that the spark plug is ﬁtted with a suppressor. Ask your dealer or Husqvarna should you need more information.

Two-piece shaft

The drive shaft end in the lower shaft should be lubricated with grease every 30 hours. There is a risk that the drive shaft ends (splined coupling) on models with two-piece shafts will seize if they are not lubricated regularly.

The spark plug condition is inﬂuenced by:

• Incorrect carburetor adjustment.

• An incorrect fuel mixture (too much or incorrect type of oil).

• A dirty air ﬁlter.

These factors cause deposits on the spark plug electrodes, which may result in operating problems and starting difﬁculties.

If the machine is low on power, difﬁcult to start or runs poorly at idle speed: always check the spark plug ﬁrst before taking any further action. If the spark plug is dirty, clean it and check that the electrode gap is 0.020 inch (0,5

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MAINTENANCE

Air ﬁlter

The air ﬁlter must be regularly cleaned to remove dust and dirt in order to avoid:

• Carburettor malfunctions.

• Starting problems.

• Loss of engine power.

• Unnecessary wear to engine parts

• Excessive fuel consumption.

use common engine oil. This would drain through the ﬁlter quite quickly and collect in the bottom.

Bevel gear

The bevel gear is ﬁlled with the right quantity of grease at the factory. However, before using the machine you should check that the bevel gear is ﬁlled three-quarters full with grease. Use HUSQVARNA special grease.

Clean the ﬁlter every 25 hours, or more regularly if conditions are exceptionally dusty.

Cleaning the air ﬁlter

Remove the air ﬁlter cover and take out the ﬁlter. Wash it clean in warm, soapy water. Ensure that the ﬁlter is dry before reﬁtting it.

An air ﬁlter that has been in use for a long time cannot be cleaned completely. The ﬁlter must therefore be replaced with a new one at regular intervals. A damaged air ﬁlter

must always be replaced.

If the machine is used in dusty conditions the air ﬁlter should be soaked in oil. See instructions under the heading Oiling the air ﬁlter.

Oiling the air ﬁlter

Always use HUSQVARNA ﬁlter oil, art. no. 531 00 92-48. The ﬁlter oil contains a solvent to make it spread evenly through the ﬁlter. You should therefore avoid skin contact.

Put the ﬁlter in a plastic bag and pour the ﬁlter oil over it. Knead the plastic bag to distribute the oil. Squeeze the excess oil out of the ﬁlter inside the plastic bag and pour off the excess before ﬁtting the ﬁlter to the machine. Never

The grease in the bevel gear does not normally need to be changed except if repairs are carried out.

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MAINTENANCE

Maintenance schedule

The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section.

Maintenance

Clean the outside of the machine. X Make sure the throttle trigger lock and the throttle function

correctly from a safety point of view. Check that the stop switch works correctly. X Check that the cutting attachment does not rotate at idle. X Clean the air ﬁlter. Replace if necessary. X Check that the guard is undamaged and not cracked. Replace

the guard if it has been exposed to impact or is cracked. Check that the trimmer head is undamaged and not cracked.

Replace the trimmer head if necessary. Check that nuts and screws are tight. X Check that there are no fuel leaks from the engine, tank or fuel

lines. Check the starter and starter cord. X Clean the outside of the spark plug. Remove and check the

electrode gap. Adjust the gap to 0.5 mm (.020”) or replace the spark plug.

Clean the machine’s cooling system. X Clean or replace the spark arrestor screen on the mufﬂer (only

applies to mufﬂers without a catalytic converter). Clean the outside of the carburettor and the space around it. X Check the fuel ﬁlter for contamination and the fuel hose for cracks

or other defects. Replace if necessary. Check all cables and connections. X Replace the spark plug. X

NOTE! Ask your dealer or Husqvarna should you need more information.

Daily Maintenance

Weekly maintenance

Monthly maintenance

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TECHNICAL DATA

Technical data

122C 122LK

Engine

Cylinder displacement, cu.in/cm Cylinder bore, inch/mm 1,26/32,0 1,26/32,0 Stroke, inch/mm 1,06/27 1,06/27 Idle speed, rpm 2900 2900 Recommended max. speed, rpm 7200 9100 Speed of output shaft, rpm 7200 6232 Max. engine output, acc. to ISO 8893, kW/ rpm 0,6/7800 0,6/7800 Catalytic converter mufﬂer Yes Yes Speed-regulated ignition system No No

Ignition system

Spark plug BRISK HQT-4 BRISK HQT-4 Electrode gap, inch/mm 0.02/0,5 0.02/0,5

Fuel and lubrication system

Fuel tank capacity, US pint/litre 0,6/0,3 0,6/0,3

Weight

Weight without fuel, cutting attachment and guard, Lbs/ kg

Noise emissions

(see note 1) Sound power level, measured dB(A) 102 104 Sound power level, guaranteed L

Sound levels

(see note 2) Equivalent sound pressure level at the operator’s ear,

measured according to EN ISO 11806 and ISO 22868, dB(A):

Vibration levels

(see note 3) Equivalent vibration levels (a

measured according to EN ISO 11806 and ISO 22867,

m/s Equipped with trimmer head (original), left/right 5,0/3,6 3,6/3,5

NOTE! This spark ignition system complies with the Canadian ICES-002 standard.

Note 1: Reported data for equivalent sound pressure level for the machine has a typical statistical dispersion (standard deviation) of 1 dB(A).

Note 2: Reported data for equivalent vibration level has a typical statistical dispersion (standard deviation) of 1 m/s The accessories are recommended for use in combination with the speciﬁed power heads and have been evaluated to

applicable ISO- and EN safety requirement standards by the Swedish Machinery Testing Institute.

dB(A) 104 108

) at handles,

hv,eq

1,32/21,7 1,32/21,7

9.7/4.4 10,6/4,8

88 90

English – 23

TECHNICAL DATA

Approved attachments Use with

Clean sweep attachment SR600-2 122LK Hedge trimmer attachment HA110 122LK Hedge trimmer attachment HA850 122LK Edger attachment EA850 122LK Saw attachment PA1100 122LK Extension attachment EX850 122LK Cultivator attachment CA230 122LK Blower attachment BA101 122LK Bristle brush attachment BR600 122LK Dethatcher attachment DT600 122LK

The accessories used in combination with the speciﬁed power heads have been evaluated to ANSI B175.3-2013 Grass Trimmers and Brushcutters - Safety Requirements. These combinations have been evaluated by Underwriters Laboratories Inc. (UL) and are consequently UL listed.

122LK Approved accessories Type Cutting attachment guard, Art. no.

Arbor shaft thread M10 Trimmer head T25 (Ø 2.0 - 2.7 mm line) 574 19 87-01

122C Approved accessories Type Cutting attachment guard, Art. no.

Blade shaft thread 3/8 R

Trimmer head

T25 (Ø 2.0 - 2.7 mm line) 574 47 95-01 T25C (Ø 2.0 - 2.7 mm line) 574 47 95-01

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