Husqvarna 324LX User Manual

324L
Operator’s manual (EPA)
X-series
324LD
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
X-series
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KEY TO SYMBOLS

Symbols

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.
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
Hearing protection
Approved eye protection
Max. speed of output shaft, rpm
Only use non-metallic, flexible cutting attachments, i.e. trimmer heads with trimmer cord.
Other symbols/decals on the machine refer to special certification requirements for certain markets.
Switch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance.
Always wear approved protective gloves.
Regular cleaning is required.
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. The blade is capable of amputating an arm or leg. Always keep people and animals at least 15 metres from the machine.
Arrows which show limits for handle positioning.
Always wear approved protective gloves.
15 m
50FT
15 m
50FT
Visual check.
Approved eye protection must always be used.
Wear sturdy, non-slip boots.
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TWC

CONTENTS

Contents
KEY TO SYMBOLS
Symbols ....................................................................... 2
CONTENTS
Contents ......................................................................
Note the following before starting: ................................ 3
SAFETY INSTRUCTIONS
Personal protective equipment .....................................
Machine ′ s safety equipment ........................................ 4
Checking, maintaining and servicing the machine ′ s
safety equipment ..........................................................
Cutting equipment ........................................................ 7
General safety precautions .......................................... 8
Fuel safety ................................................................... 8
General working instructions ....................................... 9
Basic working techniques ............................................ 9
WHAT IS WHAT?
What is what? ..............................................................
ASSEMBLY
Fitting the loop handle .................................................
Assembling and dismantling the two-piece shaft ......... 12
Fitting the trimmer head ............................................... 12
Fitting other guards and cutting attachments ............... 13
FUEL HANDLING
Fuel ..............................................................................
STARTING AND STOPPING
Check before starting ...................................................
Starting and stopping ................................................... 15
MAINTENANCE
Carburettor ...................................................................
Muffler .......................................................................... 17
Cooling system ............................................................ 17
Spark plug .................................................................... 17
Two-piece shaft ........................................................... 18
Air filter ......................................................................... 18
Maintenance schedule ................................................. 19
TECHNICAL DATA
Technical data ..............................................................
FEDERAL EMISSION CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 21
3
4
6
11
12
14
15
17
20

Note the following before starting:

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.
Maintenance, replacement, or repair of the emission control devices and system may be performed by any nonroad engine repair establishment or individual.
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 non-authorized 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.
WARNING! Long-term exposure to noise can result in permanent hearing impairment. So
!
always use approved hearing protection.
This label certify that the product has been certified in accordance with American exhaust requirements EPA 1.
This label certify that the product has been certified in accordance with American exhaust requirements EPA 2.
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 emissions requirements. Category C = 50 hours, B = 125 hours, and A = 300 hours.
For customer assistance call: 704-921-7000 or contact us at our website: www.husqvarna.com
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SAFETY INSTRUCTIONS

Personal protective equipment

IMPORTANT! 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.
GLOVES Gloves should be worn when necessary, e.g., when fitting cutting attachments.
HEARING PROTECTION Wear hearing protection that provides adequate noise reduction.
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 service workshop.
!
′′
s safety equipment
WARNING! Never use a machine that has faulty safety equipment! Carry out the inspection, maintenance and service routines listed in this section.

Throttle lock

The throttle lock 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 lock 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.
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. Visors must comply with standard EN 1731.
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.

Stop switch

Use the stop switch to switch off the engine.

Cutting attachment guard

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.
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SAFETY INSTRUCTIONS
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.

Vibration damping system

Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier.
Use of incorrectly wound cord or an incorrect cutting attachment increases the level of vibration.
The machine ′ s vibration damping system reduces the transfer of vibration between the engine unit/cutting equipment and the machine ′ s handle unit.
For mufflers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety 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:
!
Engine exhaust fumes contain carbon monoxide, which can cause carbon monoxide poisoning. For this reason you should not start or run the machine indoors, or anywhere that is poorly ventilated.
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.
Muffler
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.
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

A trimmer head is intended for trimming grass.

Locking nut

A locking nut is used to secure some types of cutting attachment.
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 mesh. Check whether the muffler on your machine is fitted with this kind of mesh.
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SAFETY INSTRUCTIONS
Checking, maintaining and servicing the machine ′′
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.

Throttle lock

Make sure the throttle control is locked at the idle setting when the throttle lock is released.
Press the throttle lock and make sure it returns to its original position when you release it.
′′
s safety equipment

Stop switch

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

Cutting attachment guard

Ensure that the guard is undamaged and is 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.
Check that the throttle control and throttle lock 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.

Vibration damping system

Regularly check the vibration damping units for cracks or deformation.
Check that the vibration damping element is undamaged and securely attached.
Muffler
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Never use a machine that has a faulty muffler.
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SAFETY INSTRUCTIONS
Regularly check that the muffler is securely attached to the machine.
The muffler on your machine is equipped with a spark arrestor mesh, this should be cleaned regularly. A blocked mesh will cause the engine to overheat and may lead to serious damage.
Never use a muffler with a defective spark arrestor mesh.

Cutting equipment

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

Cutting equipment

IMPORTANT!
This section describes 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.
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.
Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced.

Locking nut

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.)

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.
Tighten the nut using the socket spanner. 35-50 Nm (3.5­5 kpm).
IMPORTANT! Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration.
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SAFETY INSTRUCTIONS
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.

General safety precautions

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.
Never use the machine in extreme weather conditions such as severe cold, very hot and/or humid climates.
Never use a machine that has been modified in any way from its original specification.
Wear personal protective equipment. See instructions under the heading Personal protective equipment.
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 and guards must be fitted before starting. Make sure the spark plug cap and HT lead are not damaged. Otherwise you could get an 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.
WARNING! A faulty cutting attachment may increase the risk of accidents.
!

Starting

Observe your surroundings and make sure that there is no risk of people or animals coming into contact with the cutting equipment.
Place the machine on the ground, ensure the cutting attachment is clear of twigs and stones. Hold the body of the machine on the ground using your left hand (CAUTION! Not with your foot). Then grip the starter handle with your right hand and pull the starter cord.
Never wrap the starter cord around your hand

Fuel safety

Always use a fuel container with an anti-spill valve.
Never refuel the machine while the engine is running. Always stop the engine and let it cool for a few minutes before refuelling.
Always ensure there is adequate ventilation when handling fuel.
Move the machine at least 3 m from the refuelling point before starting it.
Never start the machine:
1 If you have spilt fuel on it. Wipe off the spillage and
allow remaining fuel to evaporate.
2 If you have spilt 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.
4 Avoid all skin contact with fuel. Fuel is a skin irritant
and may even cause skin changes.
WARNING! When the engine is started with the choke in either the choke or start throttle
!
positions the cutting attachment will start to rotate immediately.
The complete clutch cover and shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury.
Never start the machine indoors. Exhaust fumes can be dangerous if inhaled.
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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 naked 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.
SAFETY INSTRUCTIONS
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.
The transport guard must always be fitted to the cutting attachment when the machine is being transported or in storage.
WARNING! Take care when handling fuel. Bear in mind the risk of fire, explosion and
!
inhaling fumes.

General working instructions

IMPORTANT!
This section describes the basic safety precautions for working with clearing saws and trimmers.
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.

Basic safety rules

4 Switch off the engine before moving to another area. Fit
the transport guard before carrying or transporting the equipment any distance.
5 Never put the machine down with the engine running
unless you have it in clear sight.

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 using a trimmer head and plastic blades

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.
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 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, unpredictable felling direction, etc.
3 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.
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.
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.
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