Husqvarna Chainsaw 324LDX Series User Manual
Operator’s manual (EPA)  
324L  
324LD  
X-series  
X-series  
Please read the operator’s manual carefully and make sure you  
understand the instructions before using the machine.  
English  
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KEY TO SYMBOLS  
Symbols  
Only use non-metallic, flexible cutting  
attachments, i.e. trimmer heads with trimmer  
cord.  
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.  
Other symbols/decals on the machine refer to special  
certification requirements for certain markets.  
Please read the operator’s manual carefully  
and make sure you understand the  
instructions before using the machine.  
Switch off the engine by moving the stop  
switch to the STOP position before carrying  
out any checks or maintenance.  
Always wear:  
•
A protective helmet where there is a risk  
of falling objects  
•
•
Hearing protection  
Always wear approved protective gloves.  
Regular cleaning is required.  
Visual check.  
Approved eye protection  
Max. speed of output shaft, rpm  
Watch out for thrown objects and ricochets.  
Approved eye protection must always be  
used.  
The operator of the machine must ensure,  
while working, that no persons or animals  
come closer than 15 metres.  
15 m  
50FT  
15 m  
50FT  
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.  
Wear sturdy, non-slip boots.  
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CONTENTS  
Contents  
Note the following before starting:  
KEY TO SYMBOLS  
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.  
Symbols .......................................................................  
CONTENTS  
2
Contents ......................................................................  
Note the following before starting: ................................  
SAFETY INSTRUCTIONS  
3
3
Maintenance, replacement, or repair of the emission control  
devices and system may be performed by any nonroad  
engine repair establishment or individual.  
Personal protective equipment .....................................  
Machine′s safety equipment ........................................  
4
4
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.  
Checking, maintaining and servicing the machine′s  
safety equipment ..........................................................  
!
6
7
8
8
9
9
Cutting equipment ........................................................  
General safety precautions ..........................................  
Fuel safety ...................................................................  
General working instructions .......................................  
Basic working techniques ............................................  
WHAT IS WHAT?  
Your warranty may not cover damage or  
liability caused by the use of non-authorized  
accessories or replacement parts.  
What is what? .............................................................. 11  
ASSEMBLY  
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.  
Fitting the loop handle ................................................. 12  
Assembling and dismantling the two-piece shaft ......... 12  
Fitting the trimmer head ............................................... 12  
Fitting other guards and cutting attachments ............... 13  
FUEL HANDLING  
!
Fuel .............................................................................. 14  
STARTING AND STOPPING  
Check before starting ................................................... 15  
Starting and stopping ................................................... 15  
MAINTENANCE  
WARNING! Long-term exposure to noise can  
result in permanent hearing impairment. So  
always use approved hearing protection.  
!
Carburettor ................................................................... 17  
Muffler .......................................................................... 17  
Cooling system ............................................................ 17  
Spark plug .................................................................... 17  
Two-piece shaft ........................................................... 18  
Air filter ......................................................................... 18  
Maintenance schedule ................................................. 19  
TECHNICAL DATA  
This label certify that the product has been certified in  
accordance with American exhaust requirements EPA 1.  
TWC  
Technical data .............................................................. 20  
FEDERAL EMISSION CONTROL WARRANTY  
STATEMENT  
This label certify that the product has been certified in  
accordance with American exhaust requirements EPA 2.  
YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 21  
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  
Machine s safety equipment  
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.  
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.  
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.  
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.  
!
WARNING! Never use a machine that has  
faulty safety equipment! Carry out the  
inspection, maintenance and service  
routines listed in this section.  
GLOVES  
Gloves should be worn when necessary, e.g., when fitting  
cutting attachments.  
!
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.  
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.Visors must comply with  
standard EN 1731.  
Stop switch  
Use the stop switch to switch off the engine.  
BOOTS  
Wear sturdy, non-slip boots.  
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.  
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.  
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SAFETY INSTRUCTIONS  
For mufflers it is very important that you follow the 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.  
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!  
Vibration damping system  
!
Your machine is equipped with a vibration damping system  
that is designed to minimize vibration and make operation  
easier.  
WARNING! The inside of the muffler contain  
chemicals that may be carcinogenic. Avoid  
contact with these elements in the event of a  
damaged muffler.  
!
Use of incorrectly wound cord or an incorrect cutting  
attachment increases the level of vibration.  
WARNING! Bear in mind that:  
!
The machine′s vibration damping system reduces the transfer  
of vibration between the engine unit/cutting equipment and  
the machine′s handle unit.  
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.  
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!  
WARNING! Overexposure to vibration can  
lead to circulatory damage or nerve damage  
in people who have impaired circulation.  
!
Cutting equipment  
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.  
A trimmer head is intended for trimming grass.  
Locking nut  
A locking nut is used to secure some types of cutting  
attachment.  
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.  
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  
Stop switch  
Checking,maintaining and servicing  
′
•
Start the engine and make sure the engine stops when  
you move the stop switch to the stop setting.  
the machine s safety equipment  
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.  
Cutting attachment guard  
Throttle lock  
•
Ensure that the guard is undamaged and is not cracked.  
•
Make sure the throttle control is locked at the idle setting  
when the throttle lock is released.  
•
•
Replace the guard if it has been exposed to impact or is  
cracked.  
•
Press the throttle lock and make sure it returns to its  
original position when you release it.  
Always use the recommended guard for the cutting  
attachment you are using. See chapter on Technical data.  
Vibration damping system  
•
Check that the throttle control and throttle lock move freely  
and that the return springs work properly.  
•
Regularly check the vibration damping units for cracks or  
deformation.  
•
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.  
•
Check that the vibration damping element is undamaged  
and securely attached.  
Muffler  
•
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.  
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.  
!
•
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.  
Cutting equipment  
Never use a muffler with a defective spark arrestor mesh.  
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.  
Cutting equipment  
Only use cutting attachments with the guards we  
recommend! See the chapter on Technical data.  
•
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.  
Trimmer head  
•
Check the cutting attachment for damage or cracks. A  
damaged cutting attachment should always be replaced.  
•
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.  
Locking nut  
•
•
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.  
•
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.)  
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.  
IMPORTANT! Always ensure the trimmer cord is wound  
tightly and evenly around the drum, otherwise the machine  
will generate harmful vibration.  
•
Tighten the nut using the socket spanner. 35-50 Nm (3.5-  
5 kpm).  
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SAFETY INSTRUCTIONS  
•
Observe your surroundings and make sure that there is no  
risk of people or animals coming into contact with the  
cutting equipment.  
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.  
!
•
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  
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.  
Fuel safety  
Never use the machine in extreme weather conditions such  
as severe cold, very hot and/or humid climates.  
•
•
Always use a fuel container with an anti-spill valve.  
Never use a machine that has been modified in any way  
from its original specification.  
Never refuel the machine while the engine is running.  
Always stop the engine and let it cool for a few minutes  
before refuelling.  
Wear personal protective equipment. See instructions  
under the heading Personal protective equipment.  
•
•
Always ensure there is adequate ventilation when  
handling fuel.  
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.  
Move the machine at least 3 m from the refuelling point  
before starting it.  
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.  
•
Never start the machine:  
1
If you have spilt fuel on it. Wipe off the spillage and  
allow remaining fuel to evaporate.  
WARNING! A faulty cutting attachment may  
increase the risk of accidents.  
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
4
If the machine is leaking fuel.Check regularly for leaks  
from the fuel cap and fuel lines.  
Starting  
Avoid all skin contact with fuel. Fuel is a skin irritant  
and may even cause skin changes.  
Transport and storage  
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.  
•
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.  
!
•
•
The complete clutch cover and shaft must be fitted before  
the machine is started, otherwise the clutch can come  
loose and cause personal injury.  
•
When storing and transporting fuel always use approved  
containers intended for this purpose.  
Never start the machine indoors. Exhaust fumes can be  
dangerous if inhaled.  
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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.  
4
Switch off the engine before moving to another area. Fit  
the transport guard before carrying or transporting the  
equipment any distance.  
The transport guard must always be fitted to the cutting  
attachment when the machine is being transported or in  
storage.  
5
Never put the machine down with the engine running  
unless you have it in clear sight.  
Basic working techniques  
WARNING! Take care when handling fuel.  
Bear in mind the risk of fire, explosion and  
inhaling fumes.  
•
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.  
!
General working instructions  
WARNING! Sometimes branches or grass  
get caught between the guard and cutting  
attachment. Always stop the engine before  
cleaning.  
!
IMPORTANT!  
This section describes the basic safety precautions for  
working with clearing saws and trimmers.  
Grass trimming using a trimmer head and  
plastic blades  
If you encounter a situation where you are uncertain how to  
proceed you should ask an expert. Contact your dealer or  
your service workshop.  
Trimming  
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.  
•
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.  
Basic safety rules  
1
•
Look around you:  
To ensure that people, animals or other things cannot  
affect your control of the machine.  
•
•
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.  
•
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.  
Reduce the risk of damaging plants by shortening the  
cord to 10-12 cm and reducing the engine speed.  
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.  
Clearing  
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 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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SAFETY INSTRUCTIONS  
•
When trimming and clearing you should use less than full  
throttle so that the cord lasts longer and to reduce the  
wear on the trimmer head.  
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 to and fro.  
•
When cutting and sweeping you should use full throttle to  
obtain the best results.  
WARNING! Neither the operator of the  
machine nor anyone else may attempt to  
remove the cut material while the engine is  
!
running or the blade is rotating, as this can  
result in serious injury. Stop the engine and  
blade 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 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 unauthorised persons at a distance.  
Children, animals, onlookers and helpers  
should be kept outside the safety zone of 15  
m. Stop the machine immediately if anyone  
approaches.  
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WHAT IS WHAT?  
LDX  
What is what?  
1
2
3
4
5
6
7
8
9
Trimmer head  
12 Air purge  
Bevel gear  
13 Fuel tank  
Grease filler cap, bevel gear  
Cutting attachment guard  
Shaft  
14 Choke control  
15 Air filter cover  
16 Handle adjustment  
17 Drive disc  
Loop handle  
Stop switch  
18 Allen key  
Throttle control  
Throttle lock  
19 Locking pin  
20 Shaft coupling  
21 Operator’s manual (EPA)  
10 Cylinder cover  
11 Starter handle  
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ASSEMBLY  
Dismantling:  
Fitting the loop handle  
•
Undo the knob (at least three turns).  
•
Clip the loop handle onto the shaft. Note that the loop  
handle must be fitted between the arrows on the shaft.  
•
•
•
Push the knob towards the coupling.  
Carefully twist the lower half of the shaft to unlock it.  
Hold both parts of the shaft and pull the lower part of the  
shaft out of the coupling.  
•
•
•
Slide the spacer into the slot in the loop handle.  
Fit the nut, knob and screw. Do not overtighten.  
Now adjust the trimmer to give a comfortable working  
position. Tighten the bolt/knob.  
Fitting the trimmer head  
WARNING! Never use a cutting attachment  
Assembling and dismantling the  
two-piece shaft  
without an approved guard. See the chapter  
on Technical data. If an incorrect or faulty  
guard is fitted this can cause serious  
personal injury.  
!
(324LDx)  
Assembly:  
Fitting a trimmer guard and Superauto II 1"  
trimmer head  
•
Make sure the knob is loose.  
K
G
K
F
B
C
•
Align the cut-out in the lower part of the shaft with the  
coupling locking tab on the upper part of the shaft. Then  
lock the sections together.  
I
J
I
A
•
Fit the correct trimmer guard (A) for use with the trimmer  
head. Hook the guard onto the fitting on the shaft and  
secure it with the bolt (L).  
•
Tighten the knob.  
•
•
Fit the drive disc (B) on the output shaft.  
Turn the blade 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.  
To fit the trimmer head, first separate the two halves (see  
diagram). Proceed as follows:  
•
Insert a finger into the centre hole of the cover (I) while  
grasping the cover with your other fingers.Using the index  
finger and thumb of your other hand, release the two  
catches (J) that engage in the cut-outs in the bottom half  
(K). Pull apart the trimmer head, grasping the cover firmly.  
•
Place the cover (I) and the support flange (F) on the  
output shaft. Ensure that the drive discs guide locates  
correctly in the covers centre hole.  
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ASSEMBLY  
•
Fit the nut (G). The nut must be tightened to a torque of  
Fitting other guards and cutting  
attachments  
35-50 Nm (3.5-5 kpm). Use the socket spanner in the tool  
kit. Hold the shaft of the spanner as close to the blade  
guard as possible.  
To tighten the nut, turn the spanner in the opposite  
direction to the direction of rotation (Caution! left-hand  
thread).  
•
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 bottom half of the trimmer head (K) to the cover (I)  
by pressing them together, with the cut-outs on the bottom  
half aligned with the catches on the cover.  
•
•
Fit the drive disc (B) on the output shaft.  
Turn the blade shaft until one of the holes in the drive disc  
aligns with the corresponding hole in the gear housing.  
•
To dismantle, follow the instructions in the reverse order.  
•
•
Insert the locking pin (C) in the hole to lock the shaft.  
Screw on the trimmer head/plastic blades (H) in the  
opposite direction to the direction of rotation.  
H
H
•
To dismantle, follow the instructions in the reverse order.  
English – 13  
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FUEL HANDLING  
When the oil level is low, top up using engine oil to the edge  
of the oil refill hole.  
Fuel  
CAUTION! The machine is equipped with a four-stroke  
engine. Make sure that there is always sufficient oil in the oil  
tank.  
WARNING! Always ensure there is adequate  
ventilation when handling fuel.  
!
Only use recommended engine oil.  
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 vapours.  
Fuelling  
WARNING!Taking the following precautions,  
will lessen the risk of fire:  
Gasoline  
!
•
•
Use high-grade unleaded petrol of at least 86 octane.  
If the machine is not used for some time the fuel tank  
should be emptied and cleaned.  
Do not smoke or place hot objects near fuel.  
Always shut off the engine before refuelling.  
When refuelling, open the fuel cap slowly so  
that any excess pressure is released gently.  
Engine oil  
Check the oil level before starting the machine. A too low oil  
level can cause serious damage to the engine.  
Tighten the fuel cap carefully after refuelling.  
Always move the machine away from the  
refuelling area before starting.  
When the machine is new the engine oil should be changed  
after the first month or after 10 hours of operation.  
•
For the best result and function use HUSQVARNA engin  
oil.  
Clean around the fuel cap. Clean the fuel and oil tank  
regularly. The fuel filter should be changed at least once a  
year. Contamination in the tanks causes malfunction.  
•
When HUSQVARNA engine oil is not available another  
high grade engine oil can be used. Contact your dealer  
when selecting oil. Mineral oil or semisynthetic oil should  
be used. In general SAE 10W-40 is recommended.  
Always move the machine about 3 metres from the refuelling  
position before starting.  
•
Never use oil intended for two-stroke engines.  
Oil level  
The machine must be switched off and placed on a flat  
surface when you check the oil level.  
Unscrew the oil cap, clean the dipstick located on the cap and  
insert the cap again without screwing it down. Check the oil  
level on the dipstick.  
14 – English  
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STARTING AND STOPPING  
Cold engine  
Check before starting  
Ignition: Set the stop switch to the start position.  
•
Check that the support flange is not cracked due to fatigue  
or due to being tightened too much. Discard the support  
flange if it is cracked.  
Choke: Set the choke control in the choke position.  
•
Ensure the locking nut has not lost its captive force. The  
nut lock should have a locking force of at least 1.5 Nm.  
The tightening torque of the locking nut should be 35-50  
Nm.  
Primer bulb: Press the primer bulb repeatedly until fuel  
begins to fill the bulb. The bulb need not be completely filled.  
•
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.  
Warm engine  
Ignition: Set the stop switch to the start position.  
•
Never use the machine without a guard nor with a  
defective guard.  
Choke: Put the choke in working position.  
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.  
!
Primer bulb: Press the primer bulb repeatedly until fuel  
begins to fill the bulb. The bulb need not be completely filled.  
Always move the machine away from the  
refuelling area 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 metres.  
English – 15  
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STARTING AND STOPPING  
Starting  
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.  
!
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  
Reset the choke when the engine fires, repeat pulling the cord  
until the engine starts.  
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 with the stop  
button.  
16 – English  
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MAINTENANCE  
The muffler on your machine is equipped with a spark arrestor  
Carburettor  
mesh, this should be cleaned regularly. A blocked mesh will  
cause the engine to overheat and may lead to serious  
damage.  
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.  
!
Function  
CAUTION! Never use a machine with a defective muffler.  
•
•
The carburettor governs the engine’s speed via the  
throttle control. Air and fuel are mixed in the carburettor.  
The air/fuel mixture is adjustable. Correct adjustment is  
essential to get the best performance from the machine.  
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!  
!
Adjusting the carburettor involves adapting the engine to  
suit local conditions, e.g. climate, altitude and the petrol.  
Basic setting  
Cooling system  
The basic carburettor settings are adjusted during testing at  
the factory.  
The carburettor should be adjusted to prevent damaging the  
engine when the machine is always used at altitudes over  
1500 metres above seal level.  
To keep the working temperature as low as possible the  
machine is equipped with a cooling system.  
CAUTION! For optimum adjustment of the carburettor,  
contact a qualified dealer/service workshop that has a  
revolution counter at their disposal.  
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  
The cooling system consists of:  
1
2
3
4
Air intake on the starter.  
Fins on the flywheel.  
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.  
Cooling fins on the cylinder.  
Cylinder cover (directs cold air over 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.  
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.  
Spark plug  
The spark plug condition is influenced by:  
•
•
Incorrect carburettor adjustment.  
A dirty air filter.  
These factors cause deposits on the spark plug electrodes,  
which may result in operating problems and starting  
difficulties.  
English – 17  
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MAINTENANCE  
If the machine is low on power, difficult to start or runs poorly  
Cleaning the air filter  
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 0,6-0,7 mm. The spark plug should  
be replaced after about a month in operation or earlier if  
necessary.  
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.  
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.  
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.  
Two-piece shaft  
Oiling the air filter  
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.  
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 use  
common engine oil. This would drain through the filter quite  
quickly and collect in the bottom.  
Air filter  
The air filter must be regularly cleaned to remove dust and dirt  
in order to avoid:  
•
•
•
•
•
Carburettor malfunctions  
Starting problems  
Bevel gear  
Loss of engine power  
Unnecessary wear to engine parts  
Excessive fuel consumption.  
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.  
The grease in the bevel gear does not normally need to be  
changed except if repairs are carried out.  
18 – English  
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MAINTENANCE  
Monthly maintenance  
CAUTION! Use only HUSQVARNA replacement parts. Use  
of other brands of replacement parts can cause damage to  
your unit or injury to the operator or others.Your warranty  
does not cover damage or liability caused by the use of  
accessories and/or attachments not specifically  
recommended by HUSQVARNA.  
•
•
Clean the fuel tank.  
Clean the outside of the carburettor and the space around  
it.  
•
Check fuel hose for cracks or other damage. Change if  
necessary.  
Maintenance schedule  
•
•
•
Change the fuel filter in fuel tank.  
Check electrical wires and connections.  
Below you will find some general maintenance instructions.  
Replace the spark plug. Check that the spark plug is fitted  
with a suppressor.  
Daily maintenance  
•
•
•
•
Check the engine oil level and top up if necessary.  
Check throttle trigger and throttle trigger lockout function.  
Check that the stop switch works correctly.  
•
•
•
Change the air filter.  
Check and clean the spark arrestor mesh on the muffler.  
Change the engine oil.  
Check that there are no fuel leaks from the engine, tank or  
fuel lines.  
•
Check that the cutter does not rotate when the engine is  
idling.  
•
•
•
Clean the outside of the machine.  
Check that the harness is not damaged.  
Check that the blade guard is not damaged or cracked.  
Replace the blade guard if it is exposed to impact or is  
cracked.  
•
A non-balanced blade/trimmer head induces heavy  
vibrations that may damage the machine.  
•
•
Check that nuts and screws are tight.  
Check that the screws that hold the bevel gear are tight.  
Weekly maintenance  
•
•
•
Check the starter and starter cord.  
Clean the carburettor area.  
Clean the outside of the spark plug. Remove it and check  
the electrode gap. Adjust the gap to 0,6-0,7 mm, or  
replace the spark plug. Check that the spark plug is fitted  
with a suppressor.  
•
•
•
Clean the cooling fins on the cylinder and check that the  
air intake near the starter is not blocked.  
Check that the bevel gear is filled with grease up to 3/4.  
Use special grease.  
Clean the air filter.  
English – 19  
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TECHNICAL DATA  
Technical data  
324Lx  
324LDx  
Engine  
3
Cylinder volume, cu.in/cm  
Cylinder bore, inch/mm  
Stroke, inch/mm  
Idle speed, rpm  
1,53/25,0  
1,38/35  
1,03/26  
3100  
1,53/25,0  
1,38/35  
1,03/26  
3100  
Recommended max. speed, rpm  
Speed of output shaft, rpm  
Max. engine output, acc. to ISO 8893, kW/ rpm  
Catalytic converter muffler  
Speed-regulated ignition system  
Ignition system  
11000  
8300  
11000  
8300  
0,8 / 7000  
No  
0,8 / 7000  
No  
No  
No  
Manufacturer/type of ignition system  
Spark plug  
Ikeda  
Ikeda  
NGK CMR5H  
0,024/0,6  
NGK CMR5H  
0,024/0,6  
Electrode gap, inch/mm  
Fuel and lubrication system  
Manufacturer/type of carburettor  
Fuel tank capacity, US pint/litre  
Weight  
Walbro  
Walbro  
1,06/0,5  
1,06/0,5  
Weight without fuel, cutting attachment and guard, Lbs/kg 11,2/5,1  
11,9/5,4  
90/97  
Sound levels  
(see note 1)  
Equivalent sound pressure level at the user′s ear,  
measured according to ANSI B175.3-1997, dB(A), min/ 90/97  
max:  
Vibration levels  
Vibration levels at handles, measured according to ANSI  
2
B175.3-1997, m/s  
At idle, left/right handles, min.:  
1,9/1,8  
2,2/1,9  
5,8/5,5  
6,1/5,7  
1,7/1,6  
2,2/1,7  
3,2/4,5  
5,4/5,6  
At idle, left/right handles, max.:  
At max. speed, left/right handles, min.:  
At max. speed, left/right handles, max.:  
Note 1: Equivalent noise pressure level is calculated as the time-weighted energy total for noise pressure levels under various  
working conditions with the following time distribution: 1/2 idle and 1/2 max. speed.  
NOTE! Noise pressure at the user’s ear and vibration on the handles are measured with all the machine’s approved cutting  
equipment fitted. The table indicates the highest and lowest values.  
324Lx, 324LDx  
Approved accessories  
Arbor shaft thread M10  
Plastic blades  
Type  
Cutting attachment guard, Art. no.  
Tricut Ø 255 mm  
Tricut Ø 300 mm  
Trimmy Fix  
Superauto II 1"  
S35  
503 93 42-02 / 503 97 71-01  
503 93 42-02  
Trimmer head  
503 93 42-02 / 503 97 71-01  
503 93 42-02 / 503 97 71-01  
503 93 42-02 / 503 97 71-01  
503 93 42-02 / 503 97 71-01  
503 93 42-02 / 503 97 71-01  
T25  
T35  
20 – English  
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FEDERAL EMISSION CONTROL WARRANTY STATEMENT  
Garden servicing dealer. If you have any questions regarding  
your warranty rights and responsibilities, you should contact  
your nearest authorized servicing dealer or call Husqvarna  
Forest & Garden at 1-800-487-5963.  
YOUR WARRANTY RIGHTS AND  
OBLIGATIONS  
The EPA (The US Environmental Protection Agency),  
WARRANTY PERIOD Any warranted part which is not  
scheduled for replacement as required maintenance, or  
which is scheduled only for regular inspection to the effect of  
“repair or replace as necessary” shall be warranted for 2  
years.Any warranted part which is scheduled for replacement  
as required maintenance shall be warranted for the period of  
time up to the first scheduled replacement point for that part.  
Environment Canada and Husqvarna Forest & Garden are  
pleased to explain the emissions control system warranty on  
your 2001 and later small nonroad engine. In U.S. and  
Canada, new small nonroad engines must be designed, built  
and equipped to meet the federal stringent anti-smog  
standards. Husqvarna Forest & Garden must warrant the  
emission control system on your small nonroad engine for the  
period of time listed below provided there has been no abuse,  
neglect or improper maintenance of your unit.Your emission  
control system includes Parts such as the carburetor and the  
ignition system. Where a warrantable condition exists,  
Husqvarna Forest & Garden will repair your small nonroad  
engine at no cost to you. Expenses covered under warranty  
include diagnosis, parts and labor.  
DIAGNOSIS The owner shall not be charged for diagnostic  
labor which leads to the determination that a warranted part  
is defective, if the diagnostic work is performed at an  
approved Husqvarna Forest & Garden servicing dealer.  
CONSEQUENTIAL DAMAGES Husqvarna Forest & Garden  
may be liable for damages to other engine components  
caused by the failure of a warranted part still under warranty.  
′
MANUFACTURER S WARRANTY  
COVERAGE  
WHAT IS NOT COVERED  
All failures caused by abuse, neglect or improper  
maintenance are not covered.  
The 2001 and later small nonroad engines are warranted for  
two years. If any emission related part on you engine (as  
listed above) is defective, the part will be repaired or replaced  
by Husqvarna Forest & Garden.  
ADD -ON OR MODIFIED PARTS  
The use of add-on or modified parts can be grounds for  
disallowing a warranty claim. Husqvarna Forest & Garden is  
not liable to cover failures of warranted parts caused by the  
use of add-on or modified parts.  
′
OWNER S WARRANTY  
RESPONSIBILITIES  
As the small nonroad engine owner, you are responsible for  
the performance of the required maintenance listed in your  
Operator′s Manual. Husqvarna Forest & Garden  
HOW TO FILE A CLAIM  
If you have any questions regarding your warranty rights and  
responsibilities, you should contact your nearest authorized  
servicing dealer or call Husqvarna Forest & Garden at 1-800-  
487-5963.  
recommends that you retain all receipts covering  
maintenance on your small nonroad engine, but Husqvarna  
Forest & Garden cannot deny warranty solely for the lack of  
receipts or for your failure to ensure the performance of all  
scheduled maintenance. As the small nonroad engine owner,  
you should, however, be aware that Husqvarna Forest &  
Garden may deny you warranty coverage if your small  
nonroad engine or a part of it has failed due to abuse, neglect,  
improper maintenance, unapproved modifications or the use  
of parts not made or approved by the original equipment  
manufacturer.You are responsible for presenting your small  
nonroad engine to a Husqvarna Forest & Garden authorized  
servicing dealer as soon as a problem exists. The warranty  
repairs should be completed in a reasonable amount of time,  
not to exceed 30 days. If you have any questions regarding  
your warranty rights and responsibilities, you should contact  
your nearest authorized servicing dealer or call Husqvarna  
Forest & Garden at 1-800-487-5963.  
WHERE TO GET WARRANTY SERVICE  
Warranty services or repairs shall be provided at all  
Husqvarna Forest & Garden authorized servicing dealers.  
MAINTENANCE, REPLACEMENT AND  
REPAIR OF EMISSION-RELATED PARTS  
Any Husqvarna Forest & Garden approved replacement part  
used in the performance of any warranty maintenance or  
repairs on emission-related parts, will be provided without  
charge to the owner if the part is under warranty.  
EMISSION CONTROL WARRANTY PARTS  
LIST  
WARRANTY COMMENCEMENT DATE  
The warranty period begins on the date small nonroad engine  
is delivered.  
1
2
3
4
Carburetor and internal parts  
Intake pipe, airfilter holder and carburetor bolts.  
Airfilter and fuelfilter covered up to maintenance schedule.  
Ignition System  
LENGTH OF COVERAGE  
Husqvarna Forest & Garden warrants to the initial owner and  
each subsequent purchaser that the engine is free from  
defects in materials and workmanship which cause the failure  
of a warranted part for a period of two years.  
1
2
Spark Plug, covered up to maintenance schedule  
Ignition Module  
WHAT IS COVERED  
MAINTENANCE STATEMENT  
REPAIR OR REPLACEMENT OF PARTS Repair or  
replacement of any warranted part will be performed at no  
charge to the owner at an approved Husqvarna Forest &  
The owner is responsible for the performance of all required  
maintenance, as defined in the operator’s manual.  
English – 21  
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Super Auto II  
Super Auto II 1  
"
1
2
3
6
4
5
4,0 m  
13'  
15 cm  
~2,0 m  
6,5  
6
"
'
15 cm  
6
8
7
"
9
10  
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S35  
1
2
3
8,5 m  
28'  
10 cm  
4"  
4,2 m  
14'  
4
5
7
6
8
"Clic"  
10  
11  
15 cm  
6"  
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S35  
1
2
4,25 m  
14'  
4,25 m  
14'  
4
3
5
15 cm  
6"  
B
A
15 cm  
6"  
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T35  
1
2
3
8,5 m  
28'  
10 cm  
4"  
4,3 m  
14'  
4
5
7
6
8
"Clic"  
15 cm  
6"  
9
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´®z+H7o¶5p¨  
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1140237-95  
´®z+H7o¶5p¨  
´®z+H7o¶5p¨  
2004-03-31  
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