Operator’s manual (EPA)
333R 335FR 335R
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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CONTENTS
Contents
Note the following before
starting:
KEY TO SYMBOLS
Symbols
Please read the operator’s manual carefully.
CONTENTS
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
WARNING! Long-term exposure to noise
Dear customer!
5
can result in permanent hearing
impairment. So always use approved
hearing protection.
!
WHAT IS WHAT?
What is what on the clearing saw?
GENERAL SAFETY PRECAUTIONS
Important
WARNING! Under no circumstances may
Personal protective equipment
Machine′s safety equipment
Cutting equipment
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.
!
ASSEMBLY
Assembling the handlebar and throttle
Assembling the cutting equipment
Fitting the guard extension
Your warranty may not cover damage or
liability caused by the use of non-
authorized accessories or replacement
parts.
Fitting a blade guard, grass blade and grass cutter 14
Fitting the blade guard and saw blade
Fitting other guards and cutting attachments
Adjusting the harness and clearing saw
Standard harness
Triobalance harness
FUEL HANDLING
Fuel safety
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.
!
Fuel
Fueling
STARTING AND STOPPING
Check before starting
Starting and stopping
WORKING TECHNIQUES
General working instructions
MAINTENANCE
TWC
This label certifies that the product has been certified in
accordance with American exhaust requirements EPA 1.
Carburetor
Muffler
Cooling system
Bevel gear
Air filter
Spark plug
Maintenance schedule
TECHNICAL DATA
Technical data
This engine label certifies that the product is certified in
accordance with American exhaust emissions
requirements EPA Ph II and Californian exhaust and
evaporative emissions requirements CARB Tier III. The
Emissions Compliance Period referred to on the
emissions compliance label indicates the number of
operating hours for which the engine has shown to meet
Federal and Californian emission requirements.Category
C = 50 hours, B = 125 hours, and A = 300 hours.
FEDERAL AND CALIFORNIA EMISSIONS
CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND OBLIGATIONS 34
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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.
4 – English
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WHAT IS WHAT?
8
17
3
30
335FR
7
333R
2
1
9
17
31
4
10
29
5
14
33
11
16
18
20
19
12
6
1
13
28
22
21
33
4
15
21
25
24
4
32
26
27
23
What is what on the clearing saw?
1
2
3
4
5
6
7
8
9
Trimmer head
Grease filler cap, bevel gear
Bevel gear
18 Locking nut
19 Support flange
20 Support cup
21 Drive disc
22 Blade
Cutting attachment guard
Shaft
Handlebar
23 Socket spanner
24 Operator’s manual
25 Transport guard
26 Allen key
Throttle control
Stop switch
Throttle lockout
10 Suspension
11 Cylinder cover
12 Starter handle
13 Fuel tank
27 Locking pin
28 Harness
29 Spark plug cap and spark plug
30 Start throttle button
14 Choke control
15 Air purge
31 Adjusting screw for throttle cable
32 Spark plug spanner
16 Air filter cover
17 Handle adjustment
33 Guard extension
English – 5
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GENERAL SAFETY PRECAUTIONS
Important
Personal protective equipment
IMPORTANT!
IMPORTANT!
The machine is only designed for trimming grass, grass
clearing and/or forestry clearing.
A clearing saw, brushcutter or trimmer can be
dangerous if used incorrectly or carelessly, and can
cause serious or fatal injury to the operator or others. It
is extremely important that you read and understand the
contents of this operator’s manual.
The 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.
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.
Wear personal protective equipment. See instructions
under the heading Personal protective equipment.
Never use a machine that has been modified in any way
from its original specification.
WARNING! Listen out for warning signals
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.
or shouts when you are wearing hearing
protection. Always remove your hearing
protection as soon as the engine stops.
!
HELMET
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.
A helmet should be worn if the trees being cleared are
taller than 2 m.
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.
HEARING PROTECTION
Wear hearing protection that provides adequate noise
reduction.
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.
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.
WARNING! Running an engine in a
confined or badly ventilated area can
result in death due to asphyxiation or
carbon monoxide poisoning.
!
GLOVES
WARNING! Never allow children to use or
Gloves should be worn when necessary, e.g., when fitting
cutting attachments.
be in the vicinity of the machine. As the
!
machine is equipped with a spring-
loaded stop switch and can be started by
low speed and force on the starter
handle, even small children under some
circumstances can produce the force
necessary to start the machine.This can
mean a risk of serious personal injury.
Therefore remove the spark plug cap
when the machine is not under close
supervision.
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GENERAL SAFETY PRECAUTIONS
BOOTS
the throttle control is automatically locked at the idle
setting.
Wear boots with steel toe-caps and non-slip sole.
A
B
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.
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
FIRST AID KIT
Always have a first aid kit nearby.
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.
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.
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.
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.
!
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
English – 7
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GENERAL SAFETY PRECAUTIONS
Using incorrectly wound cord or a blunt or incorrect
Stop switch
cutting attachment (wrong type or incorrectly filed, see
instructions under the heading Filing the blade) increases
the level of vibration.
Use the stop switch to switch off the engine.
The machine′s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine′s handle unit.
Start the engine and make sure the engine stops when
you move the stop switch to the stop setting.
Cutting attachment guard
Regularly check the vibration damping units for cracks or
deformation.
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.
335RX, 335FR
Check that the vibration damping element is undamaged
and securely attached.
Check that the guard is undamaged and not cracked.
Replace the guard if it has been exposed to impact or is
cracked.
WARNING! Overexposure to vibration
Always use the recommended guard for the cutting
attachment you are using. See chapter on Technical data.
can lead to circulatory damage or nerve
!
damage in people who have impaired
circulation. Contact your doctor if you
experience symptoms of overexposure
to vibration. Such symptoms include
numbness, loss of feeling, tingling,
pricking, pain, loss of strength, changes
in skin colour or condition.These
symptoms normally appear in the
fingers, hands or wrists.The risk
increases at low temperatures.
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
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.
Your machine is equipped with a vibration damping
system that is designed to reduce vibration and make
operation easier.
8 – English
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GENERAL SAFETY PRECAUTIONS
Certain harnesses also have a quick release fitted to the
Never use a machine that has a faulty muffler.
support hook.
Check that the harness straps are correctly positioned.
Once the harness and machine have been adjusted,
check that the harness quick release works correctly.
Regularly check that the muffler is securely attached to
the machine.
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.
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.
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.
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
!
remain so for some time after stopping.
This also applies at idle speed. Contact
can result in burns to the skin.
Remember the risk of fire!
WARNING! The inside of the muffler
contain chemicals that may be
!
carcinogenic. Avoid contact with these
elements in the event of a damaged
muffler.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine.
WARNING! Bear in mind that:
!
The exhaust fumes from the engine are
hot and may contain sparks which can
start a fire. Never start the machine
indoors or near combustible material!
English – 9
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GENERAL SAFETY PRECAUTIONS
Locking nut
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.
!
A locking nut is used to secure some types of cutting
attachment.
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.
When fitting, tighten the nut in the opposite direction to the
direction of rotation of the cutting attachment. To remove
it, undo the nut in the same direction as the cutting
attachment rotates. (CAUTION! The nut has a left-hand
thread.) Tighten the nut using the socket spanner.
Grass blades and grass cutters are intended for cutting
coarse grass.
A trimmer head is intended for trimming grass.
The nylon lining inside the locking nut must not be so worn
that you can turn it by hand. The lining should offer a
resistance of at least 1.5 Nm.The nut should be replaced
after it has been put on approx. 10 times.
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
General rules
•
•
•
Reduce the risk of blade thrust.
Obtain maximum cutting performance.
Extend the life of cutting equipment.
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
IMPORTANT!
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
Refer to the instructions for the cutting attachment to
check the correct way to load the cord and the correct
cord diameter.
Keep the teeth of the blade correctly sharpened! Follow
our instructions and use the recommended file gauge. An
incorrectly sharpened or damaged blade increases the
risk of accidents.
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.
10 – English
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GENERAL SAFETY PRECAUTIONS
Keep the correct setting on the saw blade! Follow our
A correctly sharpened blade is essential for working
efficiently and to avoid unnecessary wear to the blade and
clearing saw.
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.
Check the cutting attachment for damage or cracks. A
damaged cutting attachment should always be replaced.
•
•
Make sure that the blade is well supported when you
file it. Use a 5.5 mm round file with a file holder.
Sharpening grass cutters and grass
blades
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.
•
•
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.
WARNING! Always discard a blade that is
bent, twisted, cracked, broken or
!
•
Adjust the blade setting. This should be 1 mm.
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.
Sharpening the saw blade
•
See the cutting attachment packaging for correct
sharpening instructions.
English – 11
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GENERAL SAFETY PRECAUTIONS
Trimmer head
IMPORTANT!
Always ensure the trimmer cord is wound tightly and
evenly around the drum, otherwise the machine will
generate harmful vibration.
•
Only use the recommended trimmer heads and
trimmer cords. These have been tested by the
manufacturer to suit a particular engine size. This is
especially important when a fully automatic trimmer
head is used. Only use the recommended cutting
attachment. See the chapter on Technical data.
•
•
Smaller machines generally require small trimmer
heads and vice versa. This is because when clearing
using a cord the engine must throw out the cord
radially from the trimmer head and overcome the
resistance of the grass being cleared.
The length of the cord is also important. A longer cord
requires greater engine power than a shorter cord of
the same diameter.
•
•
Make sure that the cutter on the trimmer guard is
intact.This is used to cut the cord to the correct length.
To increase the life of the cord it can be soaked in
water for a couple of days. This will make the line
tougher so that it lasts longer.
12 – English
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ASSEMBLY
Assembling the handlebar and
throttle
Assembling the cutting
equipment
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.
•
•
Remove the screw at the rear of the throttle handle.
Slide the throttle handle onto the right side of the
handlebar, (see diagram).
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.
!
•
•
•
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.
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.
RX,FR
R
Fitting the guard extension
CAUTION! The guard extension shall always be fitted
when using the trimmer head/plastic blades and
combination guard. The guard extension shall always be
removed when using the grass blade and combination
guard.
•
•
•
Fit the mounting components as shown.
Loosely tighten the four screws. (R)
Enter the guard extension guide in the slot of the
combination guard. Then click the guard extension into
position on the guard with the four quick-fasteners.
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. (FR, RX)
English – 13
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ASSEMBLY
The guard extension is removed easily using the spark
plug spanner, see illustration.
the spanner in the opposite direction to the direction
of rotation (Caution! left-hand thread).
Fitting a blade guard, grass blade
and grass cutter
Fitting the blade guard and saw
blade
G
F
E
D
K
B
C
A
J
H
A
I
•
Hook the blade guard/combination guard (A) onto the
fitting on the shaft and secure with the bolt.
CAUTION! Ensure that the guard extension is
removed.
A
L
Use the recommended blade guard. See the
Technical data section.
•
•
Fit the drive disc (B) on the output shaft.
•
Remove the mounting plate (H).Fit the adapter (I) and
bracket (J) with the two screws (K) as shown. Fit the
blade guard (A) to the adapter using the 4 screws (L)
as shown.
Turn the blade shaft until one of the holes in the drive
disc aligns with the corresponding hole in the gear
housing.
CAUTION! Use the recommended blade guard. See
the Technical data section.
•
•
Insert the locking pin (C) in the hole to lock the shaft.
Place the blade (D), support cup (E) and support
flange (F) on the output shaft.
G
•
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 guard as possible. To tighten the nut, turn
F
D
B
C
•
•
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.
14 – English
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ASSEMBLY
•
•
Insert the locking pin (C) in the hole to lock the shaft.
Fitting other guards and cutting
attachments
Place the blade (D) and support flange (F) on the
output shaft.
•
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 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 trimmer guard/combination guard (A) intended
for use with the trimmer head/plastic blades.
CAUTION! Ensure that the guard extension is fitted.
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
•
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.
A
•
Fit the drive disc (B) on the output shaft.
H
A
B
C
M
L
•
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.
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 – 15
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ASSEMBLY
height using the strap on the harness for the support
hook.
Adjusting the harness and
clearing saw
WARNING! When using a clearing saw it
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.
Standard harness
2
Grass clearing
The machine should be supported in a harness when
grass clearing so that the cutting equipment is parallel to
the ground.
Quick 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.
Triobalance harness
Spreading the load on your shoulders
Quick release
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.
Push down the red release lever to release the machine
from the harness.
Adjusting the harness
Correct height
1
Tighten the hip strap so that it sits securely.
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
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ASSEMBLY
2
Tighten the chest strap under your left arm so that it
fits closely around your body.
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.
3
Adjust the shoulder strap to distribute the load evenly
across your shoulders. Press downwards on the
suspension hook to load the harness.
2
Grass clearing
Let the blade balance at a comfortable cutting height, i.e.
close to the ground.
4
Adjust the height of the suspension hook as described
in the instructions for the standard harness. (Forestry
clearing)
5
6
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.
The elastic strap (B) can be tightened to transfer more
load from the shoulder straps to the hip strap.
A
B
English – 17
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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.
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.
This engine is certified to operate on unleaded
gasoline.
•
The lowest recommended octane grade is 87
((RON+MON)/2). If you run the engine on a lower
octane grade than 87 so-called knocking can occur.
This gives rise to a high engine temperature and
increased bearing load, which can result in serious
engine damage.
•
•
Ensure the machine is cleaned and that a complete
service is carried out before long-term storage.
The transport guard must always be fitted to the
cutting attachment when the machine is being
transported or in storage.
•
In order to prevent unintentional starting of the engine,
the spark plug cap must always be removed during
long-term storage, if the machine is not under close
supervision and when performing all service
measures.
•
When working at continuous high revs a higher octane
rating is recommended.
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
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.
10
0,20
!
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
18 – English
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FUEL HANDLING
Fueling
Mixing
•
Always mix the gasoline and oil in a clean container
intended for fuel.
•
Always start by filling half the amount of the gasoline
to be used. Then add the entire amount of oil. Mix
(shake) the fuel mixture. Add the remaining amount of
gasoline.
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.
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STARTING AND STOPPING
trimmer guard if they have been exposed to impact or
are cracked.
Check before starting
•
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.
•
•
Never use the machine without a guard nor with a
defective guard.
All covers must be correctly fitted and undamaged
before you start the machine.
Starting and stopping
•
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.
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.
!
•
•
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.
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 blade guard is not damaged or
cracked. Replace the blade guard if it is exposed to
impact or is cracked.
Starting
Choke: Set the choke control in the choke position.
•
Check that the trimmer head and trimmer guard are
not damaged or cracked.Replace the trimmer head or
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STARTING AND STOPPING
Primer bulb: Press the air purge repeatedly until fuel
begins to fill the bulb. The bulb need not be completely
filled.
For throttle handles with a start throttle
lock:
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.
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
Stopping
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.
Stop the engine by switching off the ignition.
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.
CAUTION! The stop switch automatically returns to the
start position. In order to prevent unintentional starting,
the spark plug cap must be removed from the spark plug
when assembling, checking and/or performing
maintenance.
CAUTION! Do not put any part of your body in marked
area. Contact can result in burns to the skin, or electrical
shock if the spark plug cap has been damaged. Always
use gloves. Do not use a machine with damaged spark
plug cap.
English – 21
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WORKING TECHNIQUES
cause you to lose control. Both situations can cause
serious personal injury.
General working instructions
IMPORTANT!
This section describes the basic safety precautions for
working with clearing saws and trimmers.
If you encounter a situation where you are uncertain
how to proceed you should ask an expert. Contact your
dealer or your service workshop.
Avoid all usage which you consider to be beyond your
capability.
6
7
Keep a good balance and a firm foothold.
Always hold the machine with both hands. Hold the
machine on the right side of your body.
You must understand the difference between forestry
clearing, grass clearing and grass trimming before use.
Basic safety rules
1
•
Look around you:
To ensure that people, animals or other things cannot
affect your control of the machine.
•
To ensure that people, animals, etc., do not come into
contact with the cutting attachment or loose objects
that are thrown out by the cutting attachment.
•
CAUTION! Do not use the machine unless you are
able to call for help in the event of an accident.
2
Inspect the working area. Remove all loose objects,
such as stones, broken glass, nails, steel wire, string,
etc. that could be thrown out or become wrapped
around the cutting attachment.
8
9
Keep the cutting attachment below waist level.
Switch off the engine before moving to another area.
Fit the transport guard before carrying or transporting
the equipment any distance.
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.
10 Never put the machine down with the engine running
unless you have it in clear sight.
The ABC of clearing
•
•
•
•
•
Always use the correct equipment.
Make sure the equipment is well adjusted.
Follow the safety precautions.
Organise your work carefully.
Always use full throttle when starting to cut with the
blade.
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.
•
•
•
Always use sharp blades.
Avoid stones.
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.
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.
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
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WORKING TECHNIQUES
and gives the operator a convenient and varied
working area to work in.
WARNING! Watch out for thrown objects.
Always wear approved eye protection.
Never lean over the cutting attachment
guard. Stones, rubbish, etc. can be
thrown up into the eyes causing
blindness or serious injury.
!
!
Keep 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.
•
•
Clear a strip around 75 m long. Move your fuel can as
work progresses.
WARNING! Sometimes branches or
grass get caught between the guard and
cutting attachment. Always stop the
engine before cleaning.
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.
•
You should plan the strip so that you avoid going over
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.
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.
Forestry clearing using a saw blade
•
Before you start clearing, check the clearing area, the
type of terrain, the slope of the ground, whether there
are stones, hollows etc.
•
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.
•
•
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
•
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
English – 23
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WORKING TECHNIQUES
the same time push the stem using the blade guard.
wood.Small stems require more pressure, while large
stems require less pressure.
Cut with the area of the blade between 3 o’clock and
5 o’clock. Apply full throttle before advancing the
blade.
•
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.
•
•
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.
Brush cutting with a saw blade
•
To fell a tree forwards, the bottom of the tree should be
pulled backwards. Pull the blade backwards with a
quick, firm movement.
•
Thin stems and brush are mown down. Work with a
sawing movement, swinging sideways.
•
•
Try to cut several stems in a single sawing movement.
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 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
24 – English
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WORKING TECHNIQUES
can also damage sensitive bark on trees and bushes,
and damage fence posts.
Grass clearing using a grass blade
•
Reduce the risk of damaging plants by shortening the
cord to 10-12 cm and reducing the engine speed.
Clearing
•
•
•
Grass blades and grass cutters must not be used on
woody stems.
•
The clearing technique removes all unwanted
A grass blade is used for all types of tall or coarse
grass.
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 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.
•
•
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.
•
•
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.
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.
•
•
Let the support cup rest lightly against the ground. It
is used to protect the blade from hitting the ground.
Reduce the risk of material wrapping around the blade
by following these instructions:
1 Always work at full throttle.
2 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.
•
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.
Grass trimming with a 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.
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
English – 25
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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 and cause personal
injury.
Rec. idle speed: See the Technical data section.
!
Recommended max. speed: See the Technical data
section.
WARNING! If the idle speed cannot be
adjusted so that the cutting attachment
!
Function
stops, contact your dealer/service
workshop. Do not use the machine until
it has been correctly adjusted or
repaired.
•
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.
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.
•
•
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.
Conditions
The carburetor has three adjustment controls:
L = Low speed jet
•
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.
H = High speed jet
T = Idle adjustment screw
•
Carefully turn both jets, L and H, so that they are
midway between fully screwed in and fully screwed
out.
L
H
•
•
Do not attempt to adjust the L and H jets beyond either
stop as this could cause damage.
Now start the machine according to the starting
instructions and let it warm up for 10 minutes.
T
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 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.
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.
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MAINTENANCE
Low speed jet L
High speed jet H
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 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.
L
H
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.
Note that the engine should be loaded when you adjust
the high speed jet H.You should therefore fit the trimmer
head T35 (2.7 mm cord) before adjusting the high speed
jet.The cord length should be standard, i.e. to the knife on
the trimmer guard.
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.
Apply full throttle and turn the high speed jet H very slowly
clockwise until the engine slows down.Then turn the high
speed jet H very slowly anticlockwise until the engine
starts to run unevenly. Now turn the high speed jet H
slowly clockwise a little way until the engine runs
smoothly.
T
H
CAUTION! For optimum adjustment of the carburettor,
contact a qualified dealer/service workshop that has a
revolution counter at their disposal.
Correctly adjusted carburetor
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.
!
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.
English – 27
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MAINTENANCE
Muffler
Adjusting the start throttle speed
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 (4 mm Allen screw) to increase or decrease the
start throttle speed.
CAUTION! Some mufflers are fitted with a catalytic
converter. See chapter on Technical data to see whether
your machine is fitted with a catalytic converter.
The muffler is designed to reduce the noise level and to
direct the exhaust gases away from the operator. The
exhaust gases are hot and can contain sparks, which may
cause fire if directed against dry and combustible
material.
5 mm
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.
Some mufflers are equipped with a special spark arrestor
screen. If your machine has this type of muffler, you
should clean the screen at least once a week.This is best
done with a wire brush. On mufflers without a catalytic
converter the screen should be cleaned weekly, or
replaced if necessary. On mufflers fitted with a catalytic
converter the screen should be checked, and if necessary
cleaned, monthly.If the screen is damaged it should be
replaced. If the screen is frequently blocked, this can be
a sign that the performance of the catalytic converter is
impaired. Contact your dealer to inspect the muffler. A
blocked screen will cause the machine to overheat and
result in damage to the cylinder and piston.
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.
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.
CAUTION! Never use a machine with a defective muffler.
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!
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MAINTENANCE
Air filter
Cooling system
The air filter must be regularly cleaned to remove dust
and dirt in order to avoid:
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
•
•
•
•
•
Carburettor malfunctions
Starting problems
Loss of engine power
3
Unnecessary wear to engine parts
Excessive fuel consumption.
2
1
The cooling system consists of:
1
2
3
Air intake on the starter.
Clean the filter every 25 hours, or more regularly if
conditions are exceptionally dusty.
Cooling fins on the cylinder.
Cylinder cover (directs cold air over the cylinder).
Cleaning the air filter
Remove the air filter cover and take out the filter. Wash it
clean in warm, soapy water. Ensure that the filter is dry
before refitting it.
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.
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.
Bevel gear
The bevel gear is filled with the right quantity of grease at
the factory. However, before using the machine you
should check that the bevel gear is filled three-quarters
full with grease. Use HUSQVARNA special grease.
If the machine is used in dusty conditions the air filter
should be soaked in oil. See instructions under the
heading Oiling the air filter.
Oiling the air filter
Always use HUSQVARNA filter oil, art. no. 531 00 92-48.
The filter oil contains a solvent to make it spread evenly
through the filter.You should therefore avoid skin contact.
The grease in the bevel gear does not normally need to
be changed except if repairs are carried out.
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.
English – 29
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MAINTENANCE
Spark plug
The spark plug condition is influenced by:
•
•
Incorrect carburetor adjustment.
An incorrect fuel mixture (too much or incorrect type
of oil).
•
A dirty air filter.
These factors cause deposits on the spark plug
electrodes, which may result in operating problems and
starting difficulties.
If the machine is low on power, difficult to start or runs
poorly at idle speed: always check the spark plug first
before taking any further action. If the spark plug is dirty,
clean it and check that the electrode gap is 0.020 inch (0.5
mm). The spark plug should be replaced after about a
month in operation or earlier if necessary.
CAUTION! Always use the recommended spark plug
type! Use of the wrong spark plug can damage the piston/
cylinder.
Note: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.
30 – English
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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
Weekly
Monthly
Maintenance
maintenance maintenance maintenance
Clean the outside of the machine.
X
X
X
Check that the harness is not damaged.
Check that the suspension ring is not damaged.
Make sure the throttle trigger lock and the throttle function correctly from
a safety point of view.
X
X
X
Check that the stop switch works correctly.
Check that the handle and handlebar are undamaged and secured
correctly.
Check that the cutting attachment does not rotate at idle.
Clean the air filter. Replace if necessary.
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
X
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.
Check that the trimmer head is undamaged and not cracked. Replace
the trimmer head if necessary.
Check that the locking nut of the cutting equipment is tighten correctly.
Check that nuts and screws are tight.
X
X
X
Check that there are no fuel leaks from the engine, tank or fuel lines.
Check that the transport guard for the blade is intact and that it can be
secured correctly.
X
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 machine’s cooling system.
X
X
X
X
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 that the safety release on the harness is not damaged and works.
Check the fuel filter from contamination and the fuel hose from cracks
or other defects. Replace if necessary.
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).
English – 31
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TECHNICAL DATA
Technical data
Technical data
333R
335FR
335RX
Engine
Cylinder displacement, cu.in/cm3
Cylinder bore, inch/mm
Stroke, inch/mm
2,11/34,6
1,50/38,0
1,20/30,5
2900
2,11/34,6
1,50/38,0
1,20/30,5
2900
2,11/34,6
1,50/38,0
1,20/30,5
2900
Idle speed, rpm
Recommended max. fast idle speed, rpm
Speed of output shaft, rpm
11500
11500
8220
11500
8220
8220
Max. engine output, acc. to ISO 8893, kW/ rpm
Catalytic converter muffler
Speed-regulated ignition system
Ignition system
1,6/8400
Yes
1,6/8400
Yes
1,6/8400
Yes
Yes
Yes
Yes
Manufacturer/type of ignition system
Spark plug
Walbro MB
Walbro MB
Walbro MB
Champion RCJ 6Y Champion RCJ 6Y Champion RCJ 6Y
Electrode gap, inch/mm
0,02/0,5
0,02/0,5
0,02/0,5
Fuel and lubrication system
Manufacturer/type of carburetor
Fuel tank capacity, US pint/litre
Weight
Zama C1Q
1,27/0,6
Zama C1Q
1,27/0,6
Zama C1Q
1,27/0,6
Weight without fuel, cutting attachment and guard,
Lbs/kg
13,4/6,1
13,4/6,1
13,7/6,2
Sound levels
(see note 1)
Equivalent sound pressure level at the user′s ear,
measured according to ANSI B175.3-1997, dB(A),
min/max:
96/102
95/102
95/102
Vibration levels
Vibration levels at handles, measured according to
ANSI B175.3-1997, m/s2
At idle, left/right handles, min.:
3,0/2,8
3,2/3,1
2,9/3,4
4,2/5,1
2,1/2,0
2,1/2,0
2,7/3,2
2,9/3,8
2,0/1,9
2,7/2,3
2,4/1,8
2,7/2,7
At idle, left/right handles, max.:
At max. speed, left/right handles, min.:
At max. speed, left/right handles, max.:
Note 1: Equivalent 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.
32 – English
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TECHNICAL DATA
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)
Grass 255-4 (Ø 255 4 teeth)
Multi 275-4 (Ø 275 4 teeth)
Multi 300-3 (Ø 300 3 teeth)
Scarlet 200-22 (Ø 200 22 teeth)
Tricut Ø 300 mm
T35, T35x
537 33 16-01
537 33 16-01
Grass blade/grass cutter
537 33 16-01
537 33 16-01
Saw blade
537 38 77-01
Plastic blades
537 33 16-01 / 537 34 94-01
537 33 16-01 / 537 34 94-01
537 33 16-01 / 537 34 94-01
537 33 16-01 / 537 34 94-01
537 33 16-01 / 537 34 94-01
537 33 16-01 / 537 34 94-01
-
S35
Trimmer head
Support cup
T45x
Auto 55
Trimmy S II
503 89 01-02
English – 33
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FEDERAL AND CALIFORNIA EMISSIONS CONTROLWARRANTY STATEMENT
WARRANTY COMMENCEMENT DATE
YOUR WARRANTY RIGHTS AND
OBLIGATIONS
The warranty period begins on the date the engine or
equipment is delivered to an ultimate purchaser.
The EPA (U.S. Environmental Protection Agency), CARB
LENGTH OF COVERAGE
(California Air Resources Board), Environment Canada
and Husqvarna Forest & Garden are pleased to explain
the emissions control system’s warranty on your 2007 and
later small off-road engine. In U.S. and Canada, new
equipment that use small off-road engines must be
designed, built, and equipped to meet the applicable
Federal or Californian stringent anti-smog standards.
Husqvarna Forest & Garden must warrant the emissions
control system on your small off-road engine for the
period listed below provided there has been no abuse,
neglect or improper maintenance of your equipment.Your
emissions control system may include parts such as the
carburetor, ignition system, catalytic converter, fuel tank,
filters and other associated components. Also, included
may be hoses, belts, connectors, sensors, and other
emission-related assemblies. Where a warrantable
condition exists, Husqvarna Forest & Garden will repair
your small off-road engine at no cost to you including
diagnosis, parts and labor.
Husqvarna Forest & Garden warrants to the ultimate
purchaser and each subsequent owner that the engine or
equipment is designed, built, and equipped so as to
conform with all applicable regulations adopted by EPA
and CARB, and is free from defects in materials and
workmanship that causes the failure of a warranted part
for a period of two years.
WHAT IS COVERED
REPAIR OR REPLACEMENT OF PARTS Repair or
replacement of any warranted part under the warranty
must be performed at no charge to the owner at a
warranty station. Warranty services or repairs will be
provided at all Husqvarna Forest & Garden distribution
centers that are franchised to service the subject engines.
Throughout the emissions warranty period of two years,
Husqvarna Forest & Garden must maintain a supply of
warranted parts sufficient to meet the expected demand
for such parts.
MANUFACTURER′S WARRANTY
COVERAGE
WARRANTY PERIOD Any warranted part that is
scheduled for replacement as required in the
The emissions control system is warranted for two years.
If any emissions-related part on your equipment is
defective, the part will be repaired or replaced by
Husqvarna Forest & Garden.
maintenance schedule, is warranted for the period of time
prior to the first scheduled replacement point for that part.
If the part fails prior to the first scheduled replacement,
the part will be repaired or replaced by Husqvarna Forest
& Garden at no cost. Any such part repaired or replaced
under warranty is warranted for the remainder of the
period prior to the first scheduled replacement point for
the part. Any warranted part that is not scheduled for
replacement as required in the maintenance schedule, is
warranted for two years. If any such part fails during the
period of warranty coverage, it will be repaired and
replaced by Husqvarna Forest & Garden at no cost. Any
such part repaired or replaced under the warranty is
warranted for the remaining warranty period. Any
warranted part that is scheduled only for regular
inspection in the maintenance schedule will be warranted
for a period of two years. A statement in such written
instructions to the effect of ”repair or replace as
necessary” will not reduce the period of warranty
coverage. Any such part repaired or replaced under
warranty will be warranted for the remaining warranty
period.
OWNER′S WARRANTY
RESPONSIBILITIES
•
As the small off-road engine owner, you are
responsible for performance of the required
maintenance listed in your operator’s manual.
Husqvarna Forest & Garden recommends that you
retain all receipts covering maintenance on your small
off-road engine, but Husqvarna Forest & Garden
cannot deny warranty solely for the lack of receipts or
your failure to ensure the performance of all
scheduled maintenance.
•
•
As the small off-road engine owner, you should
however be aware that Husqvarna Forest & Garden
may deny you warranty coverage if your small off-road
engine or a part has failed due to abuse, neglect, or
improper maintenance or unapproved modifications.
You are responsible for presenting your small off-road
engine to a Husqvarna Forest & Garden distribution
center or service center as soon as the 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
coverage, you should contact Husqvarna Forest &
Garden at 1-800-487-5963.
DIAGNOSIS The owner must not be charged for
diagnostic labor that leads to the determination that a
warranted part is in fact defective, provided that such
diagnostic work is performed at a warranty station.
CONSEQUENTIAL DAMAGES Husqvarna Forest &
Garden is liable for damages to other engine components
proximately caused by a failure under warranty of any
warranted part.
34 – English
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FEDERAL AND CALIFORNIA EMISSIONS CONTROLWARRANTY STATEMENT
EMISSION WARRANTY PARTS LIST
1
2
3
Carburetor and internal parts
Intake pipe, airfilter holder and carburetor bolts.
Airfilter and fuelfilter covered up to maintenance
schedule.
4
5
6
7
Spark Plug, covered up to maintenance schedule
Ignition Module
Muffler with catalytic converter
Fuel tank
WHAT IS NOT COVERED
All failures caused by abuse, neglect or improper
maintenance are not covered.
ADD -ON OR MODIFIED PARTS
Add-on or modified parts that are not exempted by CARB
or EPA may not be used. The use of any non-exempted
add-on or modified parts will be grounds for disallowing a
warranty claim. Husqvarna Forest & Garden will not be
liable to warrant failures of warranted parts caused by the
use of a non-exempted add-on or modified part.
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.
WHERE TO GET WARRANTY SERVICE
Warranty services or repairs are provided through all
Husqvarna Forest & Garden authorized servicing dealers.
MAINTENANCE, REPLACEMENT AND
REPAIR OF EMISSION-RELATED PARTS
Any replacement part may be used in the performance of
any warranty maintenance or repairs and must be
provided without charge to the owner. Such use will not
reduce the warranty obligations of the manufacturer.
MAINTENANCE STATEMENT
The owner is responsible for the performance of all
required maintenance, as defined in the operator’s
manual.
English – 35
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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, T35x
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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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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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
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Trimmy SII
1
2
7,0 m
23'
12 cm
5"
~ 3,5 m
11'
3
4
~ 15 cm
6'
7
5
6
"Clic"
8
9
35-50 NM
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1151115-95
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´®z+S+[¶5O¨
2008-03-05
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