Husqvarna Chainsaw 343F User Manual
Operator’s manual (EPA)  
343F 345FX 345FXT  
343FR 343R 345RX  
Please read the operator’s manual carefully and make sure you  
understand the instructions before using the machine.  
English  
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CONTENTS  
Contents  
Note the following before starting:  
KEY TO SYMBOLS  
•
Please read the operator’s manual carefully.  
Symbols .......................................................................  
CONTENTS  
2
Maintenance, replacement, or repair of the emission control  
devices and system may be performed by any nonroad  
engine repair establishment or individual.  
Contents ......................................................................  
Note the following before starting: ................................  
INTRODUCTION  
3
3
WARNING! Long-term exposure to noise can  
Dear customer! ............................................................  
WHAT IS WHAT?  
4
result in permanent hearing impairment. So  
always use approved hearing protection.  
!
What is what on the clearing saw? ..............................  
What is what on the clearing saw? ..............................  
What is what on the clearing saw? ..............................  
GENERAL SAFETY PRECAUTIONS  
5
6
7
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.  
!
Important ......................................................................  
Personal protective equipment .....................................  
Machine′s safety equipment ........................................  
8
8
9
Cutting equipment ........................................................ 12  
ASSEMBLY  
Your warranty may not cover damage or  
liability caused by the use of non-authorized  
accessories or replacement parts.  
Assembling the handlebar and throttle ........................ 14  
Transport position, handlebar ...................................... 14  
Assembling the cutting equipment ............................... 15  
Fitting the blade guard/combination guard, grass blade  
and ball-bearing-mounted support cup ........................ 15  
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 blade guard and saw blade ......................... 16  
Fitting the trimmer guard and trimmer head Trimmy SII 16  
Fitting other guards and cutting attachments ............... 17  
Adjusting the harness and clearing saw ...................... 17  
Standard harness ........................................................ 17  
Triobalance harness ..................................................... 18  
FUEL HANDLING  
Fuel safety ................................................................... 19  
Fuel .............................................................................. 19  
Fueling ......................................................................... 20  
STARTING AND STOPPING  
Check before starting ................................................... 21  
Starting and stopping ................................................... 21  
WORKING TECHNIQUES  
This label certify that the product has been certified in  
accordance with American exhaust requirements EPA 1.  
General working instructions ....................................... 23  
MAINTENANCE  
Carburetor .................................................................... 27  
Muffler .......................................................................... 29  
Cooling system ............................................................ 29  
Air filter ......................................................................... 29  
Bevel gear .................................................................... 30  
Drive shaft .................................................................... 30  
Spark plug .................................................................... 30  
Winter use .................................................................... 30  
Maintenance schedule ................................................. 32  
TECHNICAL DATA  
Technical data .............................................................. 33  
FEDERAL EMISSION CONTROL WARRANTY  
STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 38  
English – 3  
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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 water-powered 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 chain saws 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.  
For customer assistance, contact us at our website: www.usa.husqvarna.com  
4 – English  
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WHAT IS WHAT?  
3
8
2
32  
33  
31  
5
17  
7
9
34  
10  
18  
19  
20  
6
13  
11  
22  
1
23  
14  
35  
21  
35  
21  
12  
15  
16  
4
4
26  
25  
30  
28  
27  
29  
24  
What is what on the clearing saw? (343R, 345RX)  
1
2
3
4
5
6
7
8
9
Grass blade  
19 Support cup  
Grease filler cap, bevel gear  
Bevel gear  
20 Support flange  
21 Drive disc  
Cutting attachment guard  
Shaft  
22 Trimmer head  
23 Spark plug cap and spark plug  
24 Socket spanner  
25 Operator’s manual  
26 Transport guard  
27 Allen key  
Handlebar  
Throttle control  
Stop switch  
Throttle lockout  
10 Support eyes for harness  
11 Cylinder cover  
12 Starter handle  
13 Fuel tank  
28 Carburettor screwdriver  
29 Locking pin  
30 Harness  
31 Locking nut  
14 Choke control  
15 Air purge  
32 Start throttle button  
33 Part throttle dial (345RX)  
34 Adjusting the throttle wire  
35 Metal cup  
16 Air filter cover  
17 Handle adjustment  
18 Locking screw  
English – 5  
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WHAT IS WHAT?  
8
3
2
7
18  
5
9
29  
17  
10  
6
13  
11  
18  
19  
21  
12  
1
14  
15  
16  
20  
4
23  
24  
22  
28  
26  
27  
25  
What is what on the clearing saw? (343F, 345FX, 345FXT)  
1
2
3
4
5
6
7
8
9
Saw blade  
16 Air filter cover  
17 Handle adjustment  
18 Locking nut  
Grease filler cap, bevel gear  
Bevel gear  
Cutting attachment guard  
Shaft  
19 Support flange  
20 Drive disc  
Handlebar  
21 Spark plug  
Throttle control  
Stop switch  
22 Socket spanner  
23 Operator’s manual  
24 Transport guard  
25 Allen key  
Throttle lockout  
10 Support eyes for harness  
11 Cylinder cover  
12 Starter handle  
13 Fuel tank  
26 Carburettor screwdriver  
27 Locking pin  
28 Harness  
14 Choke control  
15 Air purge  
29 Switch for heated handle (345FXT)  
6 – English  
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WHAT IS WHAT?  
8
3
2
33  
19  
5
7
9
17  
34  
10  
6
13  
11  
25  
22  
18  
12  
19  
20  
24  
23  
21  
21  
14  
15  
16  
1
4
4
20  
1
22  
20  
4
32  
26  
30  
28  
27  
29  
31  
What is what on the clearing saw? (343FR)  
1
2
3
4
5
6
7
8
9
Blade  
18 Spark plug cap and spark plug  
Grease filler cap, bevel gear  
Bevel gear  
19 Locking nut  
20 Drive disc  
Cutting attachment guard  
Shaft  
21 Support flange  
22 Metal cup  
Handlebar  
23 Support cup  
Throttle control  
Stop switch  
24 Locking screw  
25 Trimmer head  
26 Transport guard  
27 Allen key  
Throttle lockout  
10 Support eyes for harness  
11 Cylinder cover  
12 Starter handle  
13 Fuel tank  
28 Carburettor screwdriver  
29 Locking pin  
30 Harness  
14 Choke control  
15 Air purge  
31 Socket spanner  
32 Operator’s manual  
33 Start throttle button  
34 Adjusting the throttle wire  
16 Air filter cover  
17 Handle adjustment  
English – 7  
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GENERAL SAFETY PRECAUTIONS  
Important  
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.  
!
IMPORTANT!  
The machine is only designed for trimming grass, grass  
clearing and/or forestry clearing.  
HELMET  
A helmet should be worn if the trees being cleared are taller  
than 2 m.  
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.  
HEARING PROTECTION  
Wear personal protective equipment. See instructions  
under the heading Personal protective equipment.  
Wear hearing protection that provides adequate noise  
reduction.  
Never use a machine that has been modified in any way  
from its original specification.  
Never use a machine that is faulty. Carry out the checks,  
maintenance and service instructions described in this  
manual.Some maintenance and service measures must be  
carried out by trained and qualified specialists. See  
instructions under the heading Maintenance.  
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.  
All covers, guards and handles must be fitted before  
starting. Ensure that the spark plug cap and ignition lead  
are undamaged to avoid the risk of electric shock.  
The machine operator must ensure that no people or  
animals come closer than 15 metres while working. When  
several operators are working in the same area the safety  
distance should be at least twice the tree height and no less  
than 15 metres.  
GLOVES  
Gloves should be worn when necessary, e.g., when fitting  
cutting attachments.  
WARNING! The ignition system of this  
machine produces an electromagnetic field  
!
during operation.This field may under some  
circumstances interfere with pacemakers.To  
reduce the risk of serious or fatal injury, we  
recommend persons with pacemakers to  
consult their physician and the pacemaker  
manufacturer before operating this machine.  
BOOTS  
Wear boots with steel toe-caps and non-slip sole.  
WARNING! Running an engine in a confined  
or badly ventilated area can result in death  
due to asphyxiation or carbon monoxide  
poisoning.  
!
Personal protective equipment  
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.  
IMPORTANT!  
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.  
FIRST AID KIT  
Always have a first aid kit nearby.  
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.  
8 – English  
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GENERAL SAFETY PRECAUTIONS  
Press the throttle lockout and make sure it returns to its  
original position when you release it.  
′
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.  
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.  
Check that the throttle control and throttle lockout move freely  
and that the return springs work properly.  
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.  
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.  
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.  
!
Throttle 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.  
Make sure the throttle control is locked at the idle setting  
when the throttle lockout is released.  
Start the engine and make sure the engine stops when you  
move the stop switch to the stop setting.  
English – 9  
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GENERAL SAFETY PRECAUTIONS  
Regularly check the vibration damping units for cracks or  
deformation. Check that the vibration damping element is  
undamaged and securely attached.  
Cutting attachment guard  
WARNING! Overexposure to vibration can  
lead to circulatory damage or nerve damage  
in people who have impaired circulation.  
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.  
!
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.  
Check that the guard is undamaged and not cracked.Replace  
the guard if it has been exposed to impact or is cracked.  
Quick release  
There is an easily accessible, quick release fitted at the front  
as a safety precaution in case the engine catches fire, or in  
any other situation that requires you to free yourself from the  
machine and harness. See instructions under the heading  
Adjusting the harness and clearing saw. Certain harnesses  
also have a quick release fitted to the support hook.  
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.  
!
Vibration damping system  
Check that the harness straps are correctly positioned. Once  
the harness and machine have been adjusted, check that the  
harness quick release works correctly.  
Your machine is equipped with a vibration damping system  
that is designed to reduce vibration and make operation  
easier.  
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.  
Use of incorrectly wound cord or an incorrect cutting  
attachment increases the level of vibration. See instructions  
under the heading Cutting equipment.  
The machine′s vibration damping system reduces the transfer  
of vibration between the engine unit/cutting equipment and  
the machine′s handle unit.  
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.  
10 – English  
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GENERAL SAFETY PRECAUTIONS  
For mufflers it is very important that you follow the instructions  
Locking nut  
on checking, maintaining and servicing your machine. See  
instructions under the heading Checking, maintaining and  
servicing the machine’s safety equipment.  
Never use a machine that has a faulty muffler.  
A locking nut is used to secure some types of cutting  
attachment.  
Regularly check that the muffler is securely attached to the  
machine.  
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.) When  
loosening and tightening the saw blade nut, there is a risk of  
injury from the teeth of the saw blade.You should therefore  
always ensure that your hand is shielded by the blade guard  
when doing this. Always use a socket spanner with a shaft  
that is long enough to allow this. The arrow in the diagram  
shows the area where you should operate the socket spanner  
when loosening or tightening the nut.  
If the muffler on your machine is fitted with a spark arrestor  
screen this must be cleaned regularly. A blocked 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!  
!
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! The inside of the muffler contain  
chemicals that may be carcinogenic. Avoid  
!
contact with these elements in the event of a  
damaged muffler.  
Locking screw  
WARNING! Bear in mind that:  
The lock screw must be tightened securely for ball-bearing-  
mounted support cups.  
!
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!  
English – 11  
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GENERAL SAFETY PRECAUTIONS  
General rules  
Cutting equipment  
This section describes how to choose and maintain your  
cutting equipment in order to:  
Only use cutting attachments with the guards we  
recommend! See the chapter on Technical data.  
•
•
•
Reduce the risk of blade thrust.  
Obtain maximum cutting performance.  
Extend the life of cutting equipment.  
IMPORTANT!  
Keep the teeth of the blade correctly sharpened! Follow our  
instructions and use the recommended file gauge. An  
incorrectly sharpened or damaged blade increases the risk of  
accidents.  
Only use cutting attachments with the guards we  
recommend! See the chapter on Technical data.  
Refer to the instructions for the cutting attachment to check  
the correct way to load the cord and the correct cord  
diameter.  
Keep the teeth of the blade correctly sharpened! Follow our  
recommendations. Also refer to the instructions on the  
blade packaging.  
Maintain the correct blade setting! Follow our instructions  
and use the recommended file gauge.  
Keep the correct setting on the saw blade! Follow our  
instructions and use the recommended setting tool. An  
incorrectly set saw blade increases the risk of jamming and  
blade thrust, and damage to the saw blade.  
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.  
!
Check the cutting attachment for damage or cracks. A  
damaged cutting attachment should always be replaced.  
WARNING! Using an incorrect cutting  
attachment or an incorrectly sharpened  
blade increases the risk of blade thrust.  
!
Cutting equipment  
Saw blades are intended for cutting fibrous types of wood.  
Sharpening grass cutters and grass  
blades  
Grass blades and grass cutters are intended for cutting  
coarse grass.  
•
•
See the cutting attachment packaging for correct  
sharpening instructions. Sharpen blades and cutters  
using a single-cut flat file.  
Sharpen all edges equally to maintain the balance of the  
blade.  
A trimmer head is intended for trimming grass.  
WARNING! Always discard a blade that is  
bent, twisted, cracked, broken or damaged  
in any other way. Never attempt to straighten  
a twisted blade so that it can be reused. Only  
use original blades of the specified type.  
!
12 – English  
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GENERAL SAFETY PRECAUTIONS  
Sharpening the saw blade  
Trimmer head  
IMPORTANT!  
Always ensure the trimmer cord is wound tightly and evenly  
around the drum, otherwise the machine will generate  
harmful vibration.  
•
See the cutting attachment packaging for correct  
sharpening instructions.  
A correctly sharpened blade is essential for working efficiently  
and to avoid unnecessary wear to the blade and clearing saw.  
•
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.  
•
•
Make sure that the blade is well supported when you file  
it. Use a 5.5 mm round file with a file holder.  
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.  
The filing angle is 15°. File alternate teeth to the right and  
those in between to the left. If the blade has been heavily  
pitted by stones it may be necessary to dress the top  
edges of the teeth with a flat file, in exceptional cases. If  
so, this should be done before filing with a round file. The  
top edges must be filed down by the same amount for all  
the teeth.  
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.  
Adjust the blade setting. This should be 1 mm.  
English – 13  
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ASSEMBLY  
Assembling the handlebar and  
throttle  
Transport position, handlebar  
•
•
•
The handlebar can easily be turned to fit along the shaft  
for easier transportation and storage.  
CAUTION! Some models have the throttle handle fitted at the  
factory.  
Loosen the knob.Turn the handlebar clockwise so that the  
throttle handle rests against the engine.  
•
•
Remove the screw at the rear of the throttle handle.  
Now twist the handlebar around the shaft. Tighten the  
knob.  
Slide the throttle handle onto the right side of the  
handlebar, (see diagram).  
•
Fit the transport guard to the cutting attachment.  
•
Align the screw hole in the throttle handle with the hole in  
the handlebar.  
•
•
Refit the screw in the hole in the rear of the throttle handle.  
Screw the screw through the handle and handlebar.  
Tighten it.  
•
•
Unscrew the knob from the handlebar mounting.  
Position the handlebar as shown. Fit the mounting  
components and tighten the knob lightly.  
343F,345FX,345FXT  
343R, 345RX  
343FR  
•
Put on the harness and hang the machine from the  
support hook. Now make a final adjustment so that the  
machine is in a comfortable working position when it  
hangs from the harness.  
•
Tighten the knob.  
14 – English  
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ASSEMBLY  
•
•
Insert the locking pin (C) in the hole to lock the shaft.  
Assembling the cutting equipment  
Position the blade (D) with the drive disk (B). Make sure  
that the blade is centered by fitting it to the guide on the  
drive disk.  
WARNING!  
!
When fitting the cutting attachment it is  
extremely important that the raised section  
on the drive disc/support flange engages  
correctly in the centre hole of the cutting  
attachment. If the cutting attachment is fitted  
incorrectly it can result in serious and/or  
fatal personal injury.  
•
Fit the support flange (F) on the output shaft so that it  
rests against the blade.  
N
E
F
D
P
A
B
C
M
L
•
Screw the support cup (E) onto the output shaft threads  
(CAUTION! Left-hand thread). Tighten to a torque of 35-  
50 Nm (3.5-5.0 kpm). Use the socket spanner in the tool  
kit. Note that the locking pin (C) must remain inside the  
gear housing to lock the drive disk. Hold the shaft of the  
socket spanner as close to the blade guard/combination  
guard as possible.  
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.  
!
IMPORTANT! If a saw blade or grass blade are to be used  
the machine must be equipped with the correct handlebar,  
blade guard and harness.  
Fitting the blade guard/combination  
guard, grass blade and ball-bearing-  
mounted support cup  
WARNING! Tighten the lock screw (N) in the  
center hole of the support cup.Tighten to a  
torque of 35-50 Nm (3.5-5.0 kpm), CAUTION!  
Left-hand thread. If the lock screw is not  
fitted in the support cup, there is a risk that  
the support cup will come unscrewed.This  
means that the blade will also come loose,  
which could result in serious or fatal injury  
to the operator or others.  
•
Hang the trimmer guard/combination guard (A) on the two  
hooks on the plate holder (M). Bend the guard around the  
shaft and tighten it with the bolt (L) on the opposite side of  
the shaft. Use the locking pin (C). Place the locking pin in  
the groove on the screw head and tighten. See diagram.  
!
L
M
C
A
•
CAUTION! Always use the recommended guard for the  
cutting attachment you are using. See chapter on  
Technical data.  
•
•
•
Fit the drive disc (B) on the angle gear’s output shaft.  
Centre the metal cup (P) on the drive disc’s blade guide.  
Turn the output shaft until one of the holes in the drive disk  
aligns with the corresponding hole in the gear housing.  
English – 15  
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ASSEMBLY  
guard as possible. To tighten the nut, turn the spanner in  
the opposite direction to the direction of rotation (Caution!  
left-hand thread).  
Fitting the blade guard and saw  
blade  
CAUTION! Always use the recommended guard for the  
cutting attachment you are using. See chapter on Technical  
data.  
When loosening and tightening the saw blade nut, there is a  
risk of injury from the teeth of the saw blade.You should  
therefore always ensure that your hand is shielded by the  
blade guard when doing this. Always use a socket spanner  
with a shaft that is long enough to allow this.The arrow in the  
diagram shows the area where you should operate the socket  
spanner when loosening or tightening the nut.  
343F, 345FX, 345FXT  
•
The blade guard (A) is fitted using 4 screws (L) as shown.  
L
A
343FR, 343R, 345RX  
•
Fit the holder (R) and bracket (J) with 2 bolts (H) on the  
gear housing.  
•
Then fasten the blade guard (A) with 4 bolts (L) in the  
holder (N).  
Fitting the trimmer guard and  
trimmer head Trimmy SII  
H
J
K
R
•
Fit the correct trimmer guard (A) for use with the trimmer  
head. Hang the trimmer guard/combination guard (A) on  
the two hooks on the plate holder (M). Bend the guard  
around the shaft and tighten it with the bolt (L) on the  
opposite side of the shaft. Use the locking pin (C). Place  
the locking pin in the groove on the screw head and  
tighten. See diagram.  
A
L
•
•
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.  
•
•
•
Fit the drive disc (B) on the output shaft.  
•
•
Insert the locking pin (C) in the hole to lock the shaft.  
Centre the metal cup (P) on the drive disc’s blade guide.  
Place the blade (D) and support flange (F) 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.  
G
F
H
L
P
D
M
A
A
B
C
M
B
C
L
•
•
Insert the locking pin (C) in the hole to lock the shaft.  
Screw on the trimmer head (H) in the opposite direction to  
the direction of rotation.  
•
Fit the nut (G). The nut must be tightened to a torque of  
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  
H
C
16 – English  
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ASSEMBLY  
•
•
Tighten the trimmer head to a torque of 35-50 Nm (3.5-5  
kpm).  
Standard harness  
To dismantle, follow the instructions in the reverse order.  
Fitting other guards and cutting  
attachments  
Safety release  
At the front is an easily accessible, quick release. Use this if  
the engine catches fire or in any other emergency situation  
that requires you to free yourself from the machine and  
harness.  
Fit the trimmer guard/combination guard (A) intended for use  
with the trimmer head/plastic blades. Hang the trimmer  
guard/combination guard (A) on the two hooks on the plate  
holder (M).Bend the guard around the shaft and tighten it with  
the bolt (L) on the opposite side of the shaft. Use the locking  
pin (C). Place the locking pin in the groove on the screw head  
and tighten. See diagram.  
H
Spreading the load on your shoulders  
L
A well-adjusted harness and machine makes work much  
easier. Adjust the harness for the best working position.  
Tension the side straps so that the weight is evenly distributed  
across both shoulders.  
P
M
A
A
B
C
M
L
•
•
•
Fit the drive disc (B) on the output shaft.  
Centre the metal cup (P) on the drive disc’s blade guide.  
Turn the blade shaft until one of the holes in the drive disc  
aligns with the corresponding hole in the gear housing.  
Correct height  
•
Insert the locking pin (C) in the hole to lock the shaft.  
1
Forestry clearing  
The machine should be supported in a harness when  
forestry clearing so that the cutting equipment is angled  
slightly forwards in relation to the ground. Adjust the  
height using the strap on the harness for the support  
hook.  
H
C
•
•
Screw on the trimmer head/plastic blades (H) in the  
opposite direction to the direction of rotation.  
To dismantle, follow the instructions in the reverse order.  
Adjusting the harness and clearing  
saw  
2
Grass clearing  
WARNING! When using a clearing saw it  
The machine should be supported in a harness when  
grass clearing so that the cutting equipment is parallel to  
the ground.  
must always be hooked securely to the  
harness. Otherwise you will be unable to  
control the clearing saw safely and this can  
result in injury to yourself or others. Never  
use a harness with a defective quick release.  
!
English – 17  
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ASSEMBLY  
6
The elastic strap (B) can be tightened to transfer more  
load from the shoulder straps to the hip strap.  
Triobalance harness  
Safety release  
A
Push down the red release lever to release the machine from  
the harness.  
B
Correct balance  
1
Forestry clearing  
The machine is balanced by moving the suspension ring  
on the machine forwards or backwards. On some models  
the suspension ring is fixed, however, this will then have a  
number of holes for the support hook. The machine is  
correctly balanced when it freely hangs horizontally from  
the support hook. In this way the risk of hitting stones is  
reduced if you need to release the handlebar.  
Adjusting the harness  
1
Tighten the hip strap so that it sits securely.  
2
Tighten the chest strap under your left arm so that it fits  
closely around your body.  
2
Grass clearing  
Let the blade balance at a comfortable cutting height, i.e.  
close to the ground.  
3
Adjust the shoulder strap to distribute the load evenly  
across your shoulders. Press downwards on the  
suspension hook to load the harness.  
4
Adjust the height of the suspension hook as described in  
the instructions for the standard harness. (Forestry  
clearing)  
5
If you need to lower the suspension hook, for trimming for  
example, move the suspension strap (A) to the lower  
mounting point on the backplate.  
18 – English  
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FUEL HANDLING  
Gasoline  
Fuel safety  
Never start the machine:  
1
2
If you have spilled fuel on it.Wipe off the spillage and allow  
remaining fuel to evaporate.  
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.  
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.  
Use low-emission gasoline, also known as alkylate gasoline,  
if it is available.  
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.  
This engine is certified to operate on unleaded gasoline.  
•
The lowest recommended octane grade is 87  
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.  
((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.  
•
•
Ensure the machine is cleaned and that a complete  
service is carried out before long-term storage.  
•
When working at continuous high revs a higher octane  
rating is recommended.  
The transport guard must always be fitted to the cutting  
attachment when the machine is being transported or in  
storage.  
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.  
WARNING! Take care when handling fuel.  
Bear in mind the risk of fire, explosion and  
inhaling fumes.  
!
•
Never use two-stroke oil intended for water-cooled  
engines, sometimes referred to as outboard oil (rated  
TCW).  
Fuel  
•
•
Never use oil intended for four-stroke engines.  
Mixing ratio  
CAUTION! The machine is equipped with a two-stroke  
engine and must always been 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.  
1:50 (2%) with HUSQVARNA two-stroke oil.  
Two-stroke oil, litre  
Gasoline, litre  
2% (1:50)  
5
0,10  
10  
0,20  
WARNING! Fuel and fuel fumes are highly  
inflammable 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.  
15  
0,30  
!
20  
0,40  
US gallon  
US fl. oz.  
2 1/2  
6 1/2  
12 7/8  
1
2 1/2  
5
English – 19  
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FUEL HANDLING  
Mixing  
Fueling  
•
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.  
WARNING!Taking the following precautions,  
will lessen the risk of fire:  
•
Mix (shake) the fuel mixture thoroughly before filling the  
machine’s fuel tank.  
!
Do not smoke or place hot objects near fuel.  
Always shut off the engine before refuelling.  
Always stop the engine and let it cool for a  
few minutes before refuelling.  
When refuelling, open the fuel cap slowly so  
that any excess pressure is released gently.  
Tighten the fuel cap carefully after refuelling.  
Always move the machine away from the  
refuelling area before starting.  
•
•
Do not mix more than one month’s supply of fuel at a time.  
•
•
Clean the area around the fuel cap. Contamination in the  
tank can cause operating problems.  
If the machine is not used for some time the fuel tank  
should be emptied and cleaned.  
Ensure that the fuel is well mixed by shaking the container  
before filling the tank.  
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 vapours.  
!
20 – English  
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STARTING AND STOPPING  
Check before starting  
Starting and stopping  
•
Check the blade to ensure that no cracks have formed at  
the bottom of the teeth or by the centre hole. The most  
common reason why cracks are formed is that sharp  
corners have been formed at the bottom of the teeth while  
sharpening or that the blade has been used with dull  
teeth. Discard a blade if cracks are found.  
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  
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.  
•
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.  
Cold engine  
Ignition: Set the stop switch to the start position.  
Choke: Set the choke control (A) in the choke position.  
Primer bulb: Press the air purge diaphragm (B) repeatedly  
until fuel begins to fill the diaphragm.The diaphragm need not  
be completely filled.  
•
•
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.  
Check that the blade guard is not damaged or cracked.  
Replace the blade guard if it is exposed to impact or is  
cracked.  
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  
Use the same starting procedure as for a cold engine but  
without setting the choke control in the choke position.  
Start throttle: (343F, 345FX, 345FXT, 343FR, 343R, 345RX)  
Set the throttle to the start position by moving the choke  
control to the choke position and then returning it to its original  
position.  
•
•
Never use the machine without a guard nor with a  
defective guard.  
Start throttle: (343FR, 343R, 345RX)  
Set the throttle to the start position by first pressing the throttle  
lockout and the throttle trigger, then pressing the start throttle  
button (A). Then release the throttle lockout and the throttle  
trigger, followed by the start throttle button. The throttle  
function is now activated. To return the engine to idle, press  
the throttle lockout and throttle trigger again.  
All covers must be correctly fitted and undamaged before  
you start the machine.  
English – 21  
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STARTING AND STOPPING  
PART THROTTLE FUNCTION (RX):  
Stopping  
It is possible to set the engine for part throttle operation using  
the dial on the side of the throttle handle. Turn the dial up to  
decrease the part throttle rpm.Turn the dial down to increase  
the part throttle rpm.When you have set the part throttle rpm  
you will feel increased resistance when you press the throttle  
trigger.This increased resistance makes it easier to maintain  
a constant part throttle setting.To obtain full throttle, press the  
throttle trigger a little harder so that it goes past the part  
throttle setting. As soon as you release the throttle trigger the  
engine will return to idle. The part throttle function does not  
lock the engine at a given rpm, it is simply a brake that makes  
it easier to maintain the engine at a given rpm.  
343FR, 343R, 345RX  
Stop the engine by switching off the ignition.  
343F, 345FX, 345FXT  
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.  
!
Heated handles  
(345FXT)  
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  
Models equipped with heating elements in the handles have  
an on/off switch on the throttle handle to control the heat.Both  
the left and right handles have heating elements that  
automatically maintain a temperature of roughly 70° when the  
heat is turned on.  
Repeat pulling the cord 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.  
22 – English  
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WORKING TECHNIQUES  
6
7
Keep a good balance and a firm foothold.  
General working instructions  
Always hold the machine with both hands. Hold the  
machine on the right side of your body.  
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.  
8
9
Keep the cutting attachment below waist level.  
Basic safety rules  
Switch off the engine before moving to another area. Fit  
the transport guard before carrying or transporting the  
equipment any distance.  
10 Never put the machine down with the engine running  
unless you have it in clear sight.  
1
•
Look around you:  
To ensure that people, animals or other things cannot  
affect your control of the machine.  
The ABC of clearing  
•
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.  
•
•
•
•
•
•
•
•
Always use the correct equipment.  
Make sure the equipment is well adjusted.  
Follow the safety precautions.  
•
CAUTION! Do not use the machine unless you are able to  
call for help in the event of an accident.  
Organise your work carefully.  
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.  
Always use full throttle when starting to cut with the blade.  
Always use sharp blades.  
Avoid stones.  
3
4
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.  
Control the felling direction (take advantage of the wind).  
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.  
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.  
!
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.  
5
Take great care when cutting a tree that is under tension.  
A tree that is under tension may spring back to its normal  
position before or after being cut. If you position yourself  
incorrectly or make the cut in the wrong place the tree may  
hit you or the machine and cause you to lose control. Both  
situations can cause serious personal 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. Never swing the machine  
around without first checking behind you to  
make sure no-one is within the safety zone.  
English – 23  
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WORKING TECHNIQUES  
•
You should plan the strip so that you avoid going over  
WARNING! Sometimes branches or grass  
get caught between the guard and cutting  
attachment. Always stop the engine before  
cleaning.  
ditches or other obstacles on the ground.You should also  
orient the strip to take advantage of wind conditions, so  
that cleared stems fall in the cleared area of the stand.  
!
Working methods  
WARNING! Machines fitted with saw blades  
or grass blades can be thrown violently to  
the side when the blade comes into contact  
with a fixed object.This is called blade  
thrust. A blade thrust can be violent enough  
to cause the machine and/or operator to be  
propelled in any direction, and possibly lose  
control of the machine. Blade thrust can  
occur without warning if the machine snags,  
stalls or binds. Blade thrust is more likely to  
occur in areas where it is difficult to see the  
material being cut.  
!
Forestry clearing using a saw blade  
•
The risk of blade thrust increases with increasing stem  
size.You should therefore avoid cutting with the area of  
the blade between 12 o’clock and 3 o’clock.  
Avoid cutting with the area of the blade  
between the 12 o’clock and 3 o’clock  
positions. Because of the speed of rotation  
of the blade, blade thrust can occur if you  
attempt to cut thick stems with this area of  
the blade.  
•
Before you start clearing, check the clearing area, the  
type of terrain, the slope of the ground, whether there are  
stones, hollows etc.  
•
To fell to the left, the bottom of the tree should be pushed  
to the right. Tilt the blade and bring it diagonally down to  
the right, exerting firm pressure. At the same time push  
the stem using the blade guard. Cut with the area of the  
blade between 3 o’clock and 5 o’clock. Apply full throttle  
before advancing the blade.  
•
•
Start at whichever end of the area is easiest, and clear an  
open space from which to work.  
Work systematically to and fro across the area, clearing a  
width of around 4-5 m on each pass. This exploits the full  
reach of the machine in both directions and gives the  
operator a convenient and varied working area to work in.  
•
To fell to the right, the bottom of the tree should be pushed  
to the left. Tilt the blade and bring it diagonally up to the  
right. Cut with the area of the blade between 3 o’clock and  
5 o’clock so that the direction of rotation of the blade  
pushes the bottom of the tree to the left.  
•
•
Clear a strip around 75 m long. Move your fuel can as  
work progresses.  
On sloping ground you should work along the slope. It is  
much easier to work along a slope than it is to work up and  
down it.  
24 – English  
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WORKING TECHNIQUES  
•
To fell a tree forwards, the bottom of the tree should be  
pulled backwards. Pull the blade backwards with a quick,  
firm movement.  
and cut from the centre of the group. If it is still difficult to  
gain access, cut the stems high up and let them fall. This  
will reduce the risk of jamming.  
•
Large stems must be cut from two sides. First determine  
which direction the stem will fall. Make the first cut on the  
felling side. Then finish cutting the stem from the other  
side. Adjust the cutting pressure to match the size of the  
stem and the hardness of the wood. Small stems require  
more pressure, while large stems require less pressure.  
Grass clearing using a grass blade  
•
Grass blades and grass cutters must not be used on  
woody stems.  
•
•
A grass blade is used for all types of tall or coarse grass.  
The grass is cut down with a sideways, swinging  
movement, where the movement from right-to-left is the  
clearing stroke and the movement from left-to-right is the  
return stroke. Let the left-hand side of the blade (between  
8 and 12 o’clock) do the cutting.  
•
•
If the stems are tightly packed, adapt your walking pace to  
suit.  
If the blade jams in a stem, never jerk the machine free. If  
you do this the blade, bevel gear, shaft or handlebar may  
be damaged. Release the handles, grip the shaft with  
both hands and gently pull the machine free.  
•
•
If the blade is angled to the left when clearing grass, the  
grass will collect in a line, which makes it easier to collect,  
e.g. by raking.  
Try to work rhythmically. Stand firmly with your feet apart.  
Move forward after the return stroke and stand firmly  
again.  
Brush cutting with a saw blade  
•
•
Let the support cup rest lightly against the ground. It is  
used to protect the blade from hitting the ground.  
•
Thin stems and brush are mown down. Work with a  
sawing movement, swinging sideways.  
Reduce the risk of material wrapping around the blade by  
following these instructions:  
•
•
Try to cut several stems in a single sawing movement.  
1
2
Always work at full throttle.  
With groups of hardwood stems, first clear around the  
group. Start by cutting the stems high up around the  
outside of the group to avoid jamming.Then cut the stems  
to the required height. Now try to reach in with the blade  
Avoid the previously cut material during the return  
stroke.  
•
Stop the engine, unclip the harness and place the  
machine on the ground before you start to collect the cut  
material.  
English – 25  
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WORKING TECHNIQUES  
Sweeping  
Grass trimming with a trimmer head  
•
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.  
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.  
•
When cutting and sweeping you should use full throttle to  
obtain the best results.  
•
•
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.  
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.  
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MAINTENANCE  
Basic setting  
Carburetor  
•
The basic carburetor settings are adjusted during testing  
at the factory. The basic setting is richer than the optimal  
setting and should be maintained for the first few hours the  
machine is in use. The carburettor should then be finely  
adjusted. Fine adjustment should be carried out by a  
skilled technician.  
Your Husqvarna product has been designed and  
manufactured to specifications that reduce harmful  
emissions. After the engine has used 8-10 tanks of fuel the  
engine will be run-in.To ensure that it continues to run at peak  
performance and to minimise harmful exhaust emissions  
after the running-in period, ask your dealer/service workshop  
(who will have a rev counter at their disposal) to adjust your  
carburettor.  
CAUTION! If the cutting attachment rotates when the engine  
is idling the idle adjustment screw T should be turned anti-  
clockwise until the cutting attachment stops.  
WARNING! The complete clutch cover and  
shaft must be fitted before the machine is  
started, otherwise the clutch can come loose  
Rec. idle speed 2700 rpm  
!
Recommended max. speed: See theTechnical data section.  
and cause personal injury.  
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.  
Carburetor adjustment  
!
The carburettor can be designed in different ways, depending  
on the existing environmental and emissions legislation.  
Some machines are equipped with movement limiters on the  
carburettor’s adjuster screws. These limit the adjustment  
range to a maximum of 1/2 turn.  
Fine adjustment  
When the machine has been ”run-in”the carburetor should be  
finely adjusted. The fine adjustment should be carried out  
by a qualified person. First adjust the L-jet, then the idling  
screw T and then the H-jet.  
H
L
1/2  
1/2  
Conditions  
•
Before any adjustments are made, make sure that the air  
filter is clean and the air filter cover is fitted. If you adjust  
the carburettor when the air filter is dirty it will result in a  
leaner mixture when the filter is finally cleaned. This can  
lead to serious engine damage.  
Function  
•
The carburetor governs the engine’s speed via the throttle  
control. Air and fuel are mixed in the carburetor. The air/  
fuel mixture is adjustable. Correct adjustment is essential  
to get the best performance from the machine.  
•
•
•
Carefully turn both jets, L and H, so that they are midway  
between fully screwed in and fully screwed out.  
Do not attempt to adjust the L and H jets beyond either  
stop as this could cause damage.  
•
•
The setting of the carburetor means that the engine is  
adapted to local conditions, for example, the climate,  
altitude, fuel and the type of 2-stroke oil.  
Now start the machine according to the starting  
instructions and let it warm up for 10 minutes.  
CAUTION! If the cutting attachment rotates when the  
engine is idling the idle adjustment screw T should be  
turned anti-clockwise until the cutting attachment stops.  
The carburetor has three adjustment controls:  
L = Low speed jet  
H = High speed jet  
Low speed jet L  
T = Idle adjustment screw  
Try to find the highest idling speed, turning the low speed  
needle L clockwise respectively counter-clockwise.When the  
highest speed has been found, turn the low speed needle L 1/  
4 turn counter-clockwise.  
•
•
The L and H-jets are used to adjust the supply of fuel to  
match the rate that air is admitted, which is controlled with  
the throttle. If they are screwed clockwise the air/fuel ratio  
becomes leaner (less fuel) and if they are turned anti-  
clockwise the ratio becomes richer (more fuel). A lean  
mixture gives a higher engine speed and a rich mixture  
gives a lower engine speed.  
CAUTION! If the cutting attachment rotates when the engine  
is idling the idle adjustment screw T should be turned anti-  
clockwise until the cutting attachment stops.  
The T-screw regulates the throttle setting at idle speed. If  
the T-screw is turned clockwise this gives a higher idle  
speed; turning it anti-clockwise gives a lower idle speed.  
English – 27  
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MAINTENANCE  
Setting procedure with a load (Trimmer head  
should be used)  
Fine adjustment of the idle speedT  
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 anticlockwise 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.  
Ensure the length of the trimmer cord is correct, i.e. exactly  
reaches the knife on the trimmer guard. Use either 3 mm or  
3.3 mm diameter trimmer cord.  
Run the machine warm for about 5 minutes mostly at full  
throttle. When the carburettor is to be adjusted, apply full  
throttle and turn the H-needle anti-clockwise until the engine  
burbles or until the cap reaches its stop position.(If the engine  
runs smoothly when the cap is in its stop position no further  
adjustment is necessary!)Turn the H-needle slowly clockwise  
until the engine runs absolutely smoothly. (Burbling has  
stopped completely). Now screw the H-needle (anti-  
clockwise) a few tenths of a turn.  
WARNING! If the idle speed cannot be  
adjusted so that the cutting attachment  
H
!
stops, contact your dealer/service  
workshop. Do not use the machine until it  
has been correctly adjusted or repaired.  
CAUTION! For optimum adjustment of the carburettor,  
contact a qualified dealer/service workshop that has a  
revolution counter at their disposal.  
High speed jet H  
Correctly adjusted carburetor  
The high speed jet H affects the engine power, speed,  
temperature and fuel consumption. If the high speed jet H is  
set too lean (screwed in too far) the engine speed will be too  
high and cause engine damage. Do not let the engine run at  
full speed for more than 10 seconds.  
When the carburetor is correctly adjusted the machine will  
accelerate without hesitation and burble a little at maximum  
speed. It is also important that the cutting attachment does  
not rotate at idle. If the low speed jet L is set too lean it may  
cause starting difficulties and poor acceleration. If the high  
speed jet H is set too lean it will result in less power, less  
performance, poor acceleration and/or damage to the engine.  
If both the L and H jets are set too rich it will results in  
acceleration problems or too low a working speed.  
Setting procedure without a load (Blade can be  
used)  
The machine is equipped with speed control in the ignition  
system. It is extremely important to be aware of this when  
adjusting the carburettor.  
Adjusting the start throttle speed (343FR,  
343R, 345RX)  
343R, 345RX: Speed control at: 12500 rpm  
343F, 343FR, 345FX, 345FXT: Speed control at: 13500 rpm  
The correct start throttle speed is set by means of an adjuster  
on the rear of the handle next to the cable. Use this screw (5  
mm Allen screw) to increase or decrease the start throttle  
speed.  
When attempting to adjust the speed over that specified, the  
speed is not changed, but only causes the engine to receive  
too little fuel resulting in a large risk of engine failure.  
Run the machine warm for approximately 5 minutes  
alternating between short intervals of full throttle and idling.  
When the carburettor is to be adjusted, apply full throttle and  
turn the H-needle anti-clockwise until the engine speed  
reaches 10,500-11,000 r/min (burbles) or until the cap  
reaches its stop position. Now turn the H-needle slowly  
clockwise until the engine reaches the speed when the speed  
control comes into force. In some cases, speed control can  
come into force at 200-300 revs below or above that specified.  
It is important that you do not continue to turn the H-needle  
clockwise when the engine speed has stabilised. Screw the  
H-needle (anti-clockwise) a few tenths of a turn instead.  
Proceed as follows:  
1
2
Run the machine at idle.  
Press the start throttle lock as described under the  
heading Starting and stopping.  
3
If the start throttle speed is too low (below 4000 rpm), turn  
the adjuster screw A clockwise until the cutting  
attachment starts to rotate. Then turn A clockwise a  
further 1/2 turn.  
H
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MAINTENANCE  
4
If the start throttle speed is too high, turn the adjuster  
screw A anticlockwise until the cutting attachment stops.  
Then turn adjuster screw A clockwise a further 1/2 turn.  
Cooling system  
Muffler  
To keep the working temperature as low as possible the  
machine is equipped with a cooling system.  
The cooling system consists of:  
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.  
4
3
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.  
2
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.  
1
1
2
3
4
Air intake on the starter.  
Fins on the flywheel.  
Cooling fins on the cylinder.  
Cylinder cover (directs cold air over the cylinder).  
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.  
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.  
Air filter  
CAUTION! Never use a machine with a defective muffler.  
The air filter must be regularly cleaned to remove dust and dirt  
in order to avoid:  
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!  
•
•
•
•
•
Carburettor malfunctions  
Starting problems  
!
Loss of engine power  
Unnecessary wear to engine parts  
Excessive fuel consumption.  
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.  
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MAINTENANCE  
An oiled foam plastic filter (available as an accessory) must  
Drive shaft  
be used if the machine is operated in extremely dusty  
conditions. See instructions under the heading Oiling the air  
filter.  
The drive shaft must be greased every three months during  
full-time use. Contact your dealer if you are uncertain about  
the procedure.  
Spark plug  
Oiling the air filter  
The spark plug condition is influenced by:  
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.  
•
•
Incorrect carburetor adjustment.  
An incorrect fuel mixture (too much or incorrect type of  
oil).  
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.  
•
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 mm).The spark plug  
should be replaced after about a month in operation or earlier  
if necessary.  
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.  
Bevel gear  
Winter use  
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.  
Running problems can occur when using the machine in the  
cold and snowy conditions caused by:  
•
•
Too low engine temperature.  
Icing of the air filter and carburetor.  
The grease in the bevel gear does not normally need to be  
changed except if repairs are carried out.  
Special measures are therefore often required:  
•
Partly mask the air inlet on the starter to increase the  
working temperature of the engine.  
•
Preheat the intake air to the carburetor by using the heat  
from the cylinder.  
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MAINTENANCE  
°
°
Temperature 0 C (32 F) or colder:  
The air filter holder is prepared so it can be changed for use  
in the cold. Remove the air filter cover and air filter. Turn the  
winter cover anticlockwise using a screwdriver so that the  
preheated air from the engine can pass inside the carburettor  
compartment and prevent, for example, the air filter from icing  
up (see figure).  
For temperatures below -5°C (23°F) and/or in snow  
conditions there is also:  
•
•
a special cover for the starter housing  
a cover for cylinder cover’s air inlet should be fitted as  
illustrated.  
These reduce the cooling air and prevent large amounts of  
snow from being sucked into the engine.  
IMPORTANT! If the temperature rises above -5°C (23°F) or  
0°C (32°F) respectively the machine MUST be restored to its  
normal set-up. Otherwise there is a risk of overheating, which  
can cause severe engine damage.  
IMPORTANT! Any maintenance other than that described in  
this manual must be carried out by your servicing dealer  
(retailer).  
IMPORTANT! 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.  
English – 31  
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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. The user must only carry out the maintenance and service work described in this manual. More extensive  
work must be carried out by an authorised service workshop.  
Daily  
maintenance  
Weekly  
maintenance  
Monthly  
maintenance  
Maintenance  
Clean the outside of the machine.  
X
X
Check that the harness is not damaged.  
Make sure the throttle trigger lock and the throttle function correctly from a  
safety point of view.  
X
X
Check that the handle and handlebar are undamaged and secured  
correctly.  
Check that the stop switch works correctly.  
Check that the cutting attachment does not rotate at idle.  
Clean the air filter. Replace if necessary.  
X
X
X
Check that the guard is undamaged and not cracked. Replace the guard if  
it has been exposed to impact or is cracked.  
X
Check that the blade is correctly centred, is sharp, and is not cracked. An  
off-centre blade will cause vibration that could result in damage to the  
machine.  
X
Check that the trimmer head is undamaged and not cracked. Replace the  
trimmer head if necessary.  
X
X
X
Check that the locking nut of the cutting equipment is tighten correctly.  
Check that the locking screw is tightened when using a support cup with  
bearings.  
Check that the transport guard for the blade is intact and that it can be  
secured correctly.  
X
Check that nuts and screws are tight.  
X
X
Check that there are no fuel leaks from the engine, tank or fuel lines.  
Check the starter and starter cord.  
X
X
Check that the vibration damping elements are not damaged.  
Clean the outside of the spark plug. Remove it and check the electrode  
gap. Adjust the gap to 0.5 mm (.20”), or replace the spark plug. Check that  
the spark plug is fitted with a suppressor.  
X
Clean the machines cooling system.  
X
X
X
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.  
Check that the bevel gear is filled three-quarters full with lubricant. Fill if  
necessary using special grease.  
Check the fuel filter from contamination and the fuel hose from cracks or  
other defects. Replace if necessary.  
X
X
X
Check all cables and connections.  
Check the clutch, clutch springs and the clutch drum for wear. Replace if  
necessary by an autorized service workshop.  
Replace the spark plug. Check that the spark plug is fitted with a  
suppressor.  
X
X
Check and clean the spark arrestor screen on the muffler (only applies to  
mufflers fitted with a catalytic converter).  
Lubricate the drive shaft with the special grease.  
Do this every three months.  
Replace the vibration damping elements after each season, however, at  
least once a year.  
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TECHNICAL DATA  
Technical data  
343R  
345RX  
343F  
Engine  
3
Cylinder displacement, cu.in/cm  
Cylinder bore, inch/mm  
Stroke, inch/mm  
2,75/45  
1,65/42  
1,26/32  
2800  
2,75/45  
1,65/42  
1,26/32  
2800  
2,75/45  
1,65/42  
1,26/32  
2800  
Idle speed, rpm  
Recommended max. speed, rpm  
Speed of output shaft, rpm  
Max. engine output, acc. to ISO 8893, kW/ rpm  
Catalytic converter muffler  
Ignition system  
12500  
9000  
12500  
9000  
13500  
10500  
2,0/9000  
No  
2,0/9000  
No  
2,0/9000  
Yes  
Manufacturer/type of ignition system  
Spark plug  
SEM AM  
SEM AM  
SEM AM  
Champion RCJ 6Y  
0,02/0,5  
Champion RCJ 6Y  
0,02/0,5  
Champion RCJ 6Y  
0,02/0,5  
Electrode gap, inch/mm  
Fuel and lubrication system  
Manufacturer/type of carburetor  
Fuel tank capacity, US pint/litre  
Weight  
Zama C1Q  
1,9/0,9  
Zama C1Q  
1,9/0,9  
Zama C1Q  
1,9/0,9  
Weight without fuel, cutting attachment and guard, Lbs/kg 18,0/8,2  
17,4/7,9  
17,4/7,9  
Sound levels  
(see note 1)  
Equivalent sound pressure level at the user′s ear, measured  
99/104  
99/104  
99/104  
according to ANSI B175.3-1997, dB(A), min/max:  
Vibration levels  
Vibration levels at handles, measured according to  
2
ANSI B175.3-1997, m/s  
At idle, left/right handles, min.:  
3,7/4,5  
4,0/4,7  
2,1/2,3  
2,5/2,7  
2,5/2,8  
3,0/3,9  
0,8/1,2  
1,2/1,9  
3,7/4,5  
4,0/4,7  
2,1/2,3  
2,5/2,7  
At idle, left/right handles, max.:  
At max. speed, left/right handles, min.:  
At max. speed, left/right handles, max.:  
Note 1: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under various  
working conditions with the following time distribution: 1/2 idling 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.  
English – 33  
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TECHNICAL DATA  
345FX  
345FXT  
Engine  
3
Cylinder displacement, cu.in/cm  
Cylinder bore, inch/mm  
Stroke, inch/mm  
2,62/43  
1,61/41  
1,26/32  
2800  
2,62/43  
1,61/41  
1,26/32  
2800  
Idle speed, rpm  
Recommended max. speed, rpm  
Speed of output shaft, rpm  
13500  
10500  
13500  
10500  
2,1/9600  
Yes  
Max. engine output, acc. to ISO 8893, kW/ rpm  
Catalytic converter muffler  
Ignition system  
2,1/9600  
Yes  
Manufacturer/type of ignition system  
Spark plug  
SEM AM  
SEM AM  
Champion RCJ 6Y  
0,02/0,5  
Champion RCJ 6Y  
0,02/0,5  
Electrode gap, inch/mm  
Fuel and lubrication system  
Manufacturer/type of carburetor  
Fuel tank capacity, US pint/litre  
Weight  
Zama C1Q  
1,9/0,9  
Zama C1Q  
1,9/0,9  
Weight without fuel, cutting attachment and guard, Lbs/kg 17,2/7,8  
17,4/7,9  
Sound levels  
(see note 1)  
Equivalent sound pressure level at the user′s ear, measured  
98/104  
98/104  
according to ANSI B175.3-1997, dB(A), min/max:  
Vibration levels  
Vibration levels at handles, measured according to  
2
ANSI B175.3-1997, m/s  
At idle, left/right handles, min.:  
3,6/4,0  
4,0/4,5  
1,0/1,1  
1,4/1,7  
3,6/4,0  
4,0/4,5  
1,0/1,1  
1,4/1,7  
At idle, left/right handles, max.:  
At max. speed, left/right handles, min.:  
At max. speed, left/right handles, max.:  
Note 1: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under various  
working conditions with the following time distribution: 1/2 idling 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.  
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TECHNICAL DATA  
343FR  
Engine  
3
Cylinder displacement, cu.in/cm  
Cylinder bore, inch/mm  
Stroke, inch/mm  
2,75/45  
1,65/42  
1,26/32  
2800  
Idle speed, rpm  
Recommended max. speed, rpm  
Speed of output shaft, rpm  
12500  
9000  
Max. engine output, acc. to ISO 8893, kW/ rpm  
Catalytic converter muffler  
Ignition system  
2,0/9000  
No  
Manufacturer/type of ignition system  
Spark plug  
SEM AM  
Champion RCJ 6Y  
0,02/0,5  
Electrode gap, inch/mm  
Fuel and lubrication system  
Manufacturer/type of carburetor  
Fuel tank capacity, US pint/litre  
Weight  
Zama C1Q  
1,9/0,9  
Weight without fuel, cutting attachment and guard, Lbs/kg 18,1/8,2  
Sound levels  
(see note 1)  
Equivalent sound pressure level at the user′s ear, measured  
97/100  
according to ANSI B175.3-2003, dB(A), min/max:  
Vibration levels  
Vibration levels at handles, measured according to  
2
ANSI B175.3-2003, m/s  
At idle, left/right handles, min.:  
2,1/2,4  
3,4/4,2  
2,0/2,1  
2,8/3,3  
At idle, left/right handles, max.:  
At max. speed, left/right handles, min.:  
At max. speed, left/right handles, max.:  
Note 1: Equivalent sound pressure level is calculated as the time-weighted energy total for sound pressure levels under various  
working conditions with the following time distribution: 1/2 idling 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.  
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TECHNICAL DATA  
343R  
Approved accessories  
Type  
Cutting attachment guard, Art. no.  
Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12  
Multi 255-3 (Ø 255 3 teeth)  
537 28 85-01  
537 28 85-01  
537 28 85-01  
537 31 09-01  
537 31 09-01  
537 28 85-01  
503 95 43-01  
503 95 43-01  
503 95 43-01  
503 95 43-01  
Grass blade/grass cutter  
Multi 275-4 (Ø 275 4 teeth)  
Multi 300-3 (Ø 300 3 teeth)  
Maxi XS 200-22 (Ø 200 22 teeth)  
Saw blade  
Scarlet 200-22 (Ø 200 22 teeth)  
Plastic blades  
Tricut Ø 300 mm  
Trimmy S  
Trimmy S II  
Auto 55  
Trimmer head  
T45  
Fixed  
Support cup  
With ball bearing  
-
Shredder blade  
Set 544 84 29-01  
343FR  
Approved accessories  
Type  
Cutting attachment guard, Art. no.  
Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12  
Multi 255-3 (Ø 255 3 teeth)  
537 28 85-01  
537 28 85-01  
537 28 85-01  
537 31 09-01  
537 31 09-01  
537 28 85-01  
503 95 43-01  
503 95 43-01  
503 95 43-01  
Grass blade/grass cutter  
Multi 275-4 (Ø 275 4 teeth)  
Multi 300-3 (Ø 300 3 teeth)  
Maxi XS 200-22 (Ø 200 22 teeth)  
Saw blade  
Scarlet 200-22 (Ø 200 22 teeth)  
Plastic blades  
Tricut Ø 300 mm  
Trimmy S II  
Auto 55  
Trimmer head  
T45  
Fixed  
Support cup  
With ball bearing  
-
Shredder blade  
Set 544 84 29-01  
345RX  
Approved accessories  
Type  
Cutting attachment guard, Art. no.  
Centre hole in blades/cutters, Ø 25,4 mm Output shaft thread M12  
Multi 255-3 (Ø 255 3 teeth)  
537 28 85-01  
537 28 85-01  
537 28 85-01  
537 31 09-01  
537 31 09-01  
537 28 85-01  
503 95 43-01  
503 95 43-01  
503 95 43-01  
503 95 43-01  
Grass blade/grass cutter  
Multi 275-4 (Ø 275 4 teeth)  
Multi 300-3 (Ø 300 3 teeth)  
Maxi XS 200-22 (Ø 200 22 teeth)  
Scarlet 200-22 (Ø 200 22 teeth)  
Tricut Ø 300 mm  
Trimmy S  
Saw blade  
Plastic blades  
Trimmy S II  
Trimmer head  
Support cup  
Auto 55  
T45  
Fixed  
With ball bearing  
36 – English  
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TECHNICAL DATA  
343F, 345FX, 345FXT  
Approved accessories  
Type  
Cutting attachment guard, Art. no.  
Centre hole in blades/cutters, Ø 20 mm  
Output shaft thread M12  
Multi 255-3 (Ø 255 3 teeth)  
Multi 275-4 (Ø 275 4 teeth)  
Multi 300-3 (Ø 300 3 teeth)  
Maxi XS 200-22 (Ø 200 22 teeth)  
Scarlet 200-22 (Ø 200 22 teeth)  
Scarlet 225-24 (Ø 225 24 teeth)  
Tricut Ø 300 mm  
537 29 74-01  
537 29 74-01  
537 29 74-01  
537 21 71-01  
537 21 71-01  
502 03 94-06  
537 29 74-01  
537 29 73-01  
537 29 73-01  
537 29 73-01  
537 29 73-01  
Grass blade/grass cutter  
Saw blade  
Plastic blades  
Trimmy S  
Trimmy S II  
Trimmer head  
Support cup  
Auto 55  
T45  
Fixed  
With ball bearing  
English – 37  
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FEDERAL EMISSION CONTROL WARRANTY STATEMENT  
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  
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.  
The EPA (The US Environmental Protection Agency),  
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.  
WHAT IS NOT COVERED  
All failures caused by abuse, neglect or improper  
maintenance are not covered.  
′
MANUFACTURER S WARRANTY  
COVERAGE  
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 SWARRANTY 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  
1
2
Spark Plug, covered up to maintenance schedule  
Ignition Module  
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.  
5
Muffler with catalytic converter  
MAINTENANCE STATEMENT  
The owner is responsible for the performance of all required  
maintenance, as defined in the operator’s manual.  
WHAT IS COVERED  
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 &  
Garden servicing dealer. If you have any questions regarding  
38 – English  
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Trimmy SII  
1
2
7,0 m  
23'  
12 cm  
5"  
~ 3,5 m  
11'  
3
4
~ 15 cm  
7
5
6
6'  
"Clic"  
8
9
35-50 NM  
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Auto 55  
1
2
3
>1,1 Kw  
<1,1 Kw  
1.)  
2.)  
4
5
2,7 mm - 9,0 m  
3,0 mm - 7,5 m  
3,3 mm - 6,0 m  
15 cm  
6"  
8
7
6
15 cm  
6"  
15 cm  
6"  
15 cm  
6"  
10  
11  
´®z+R;e¶5p¨  
´®z+R;e¶5p¨  
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T45, T45x  
1
2
3
10 m  
32'  
10 cm  
4"  
4,3 m  
14'  
4
5
7
6
8
15 cm  
6"  
"Clic"  
9
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1150276-95  
´®z+R;e¶5p¨  
´®z+R;e¶5p¨  
2007-03-23  
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