Operator’s Manual
Please read these instructions and make sure you understand them before using the machine.
4C
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KEY TO SYMBOLS
Only intended for trimmer heads.
Symbols
WARNING: Clearing saws, brush-
cutters and trimmers can be dan-
gerous! Careless or incorrect use
can result in serious or fatal
injury to the operator or others.
Please read the operator’s manual
carefully and make sure you
understand the instructions
before using the machine.
Use unleaded or quality leaded
gasoline and two--stroke oil
mixed at a ratio of 2% (1:50).
Other symbols/decals on the machine
refer to special certification requirements
for certain markets.
Always wear:
S Hearing protection
S Approved eye protection
Stop the engine by pushing
and holding the stop switch
in the STOP position until the
engine stops before carrying
out any checks or maintenance.
Watch out for thrown objects and
ricochets.
The operator of the machine
must ensure, while working,
that no persons or animals
come closer than 50 feet
(15 meters).
Regular cleaning is required.
Visual check.
Arrows which show limits for
handle positioning.
Approved eye protection must
always be used.
Always wear approved protective
gloves.
Wear sturdy, non--slip boots.
Only use non--metallic, flexible
cutting attachments, i.e. trimmer
heads with trimmer line.
3
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SAFETY INSTRUCTIONS
FIRST AID KIT
Always have a first aid kit nearby.
Personal protective equipment
IMPORTANT! Whenever you use a clear-
ing saw, brushcutter or trimmer you must
wear personal protective equipment that is
approved by the authorities. Personal
protective equipment does not eliminate
the risk of accidents, but it can reduce the
effects of an injury in the event of an acci-
dent. Ask your dealer for help when
Machine’s safety equipment
This section describes the machine’s safe-
ty equipment, its purpose, and how checks
and maintenance should be carried out to
ensure that it operates correctly. See the
“Know your trimmer ” 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 ser-
vicing dealer.
choosing protective equipment.
WARNING: Listen out for warn-
ing signals or shouts when you are
wearing hearing protection. Always
remove your hearing protection as
soon as the engine stops.
GLOVES
Gloves should be worn when necessary,
e.g., when fitting cutting attachments.
WARNING: Never use a machine
that has faulty safety equipment!
Carry out the inspection, mainte-
nance and service routines listed in
this section.
HEARING PROTECTION
Wear hearing protection that provides
adequate noise reduction.
Stop switch
Make sure the engine stops when you push
and hold the stop switch.
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.
Cutting attachment guard
This guard is intended to prevent loose ob-
jects from being thrown towards the opera-
tor. The guard also protects the operator
from accidental contact with the cutting at-
tachment.
BOOTS
Wear sturdy, non--slip boots.
CLOTHING
WARNING: Never use a cutting
attachment without an approved
guard. See the section on “Technical
data”. If an incorrect or faulty guard
is fitted this can cause serious
personal injury.
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 jewelry, shorts
sandals or go barefoot. Secure hair so it is
above shoulder level.
4
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SAFETY INSTRUCTIONS
Cutting equipment
A trimmer head is intended for trimming
grass.
Use of incorrectly wound trimmer line or an
incorrect cutting attachment increases the
level of vibration.
WARNING: Overexposure to
vibration can lead to circulatory
damage or nerve damage in people
who have impaired circulation.
Contact your doctor if you experi-
ence symptoms of overexposure to
vibration. Such symptoms include
numbness, loss of feeling, tingling,
pricking, pain, loss of strength,
changes in skin color or condition.
These symptoms normally appear
in the fingers, hands or wrists. The
risk increases at low temperatures.
Checking, maintaining and
servicing the machine’s
safety equipment
IMPORTANT!
All servicing and repair work on the machine
requires special training. This is especially
true of the machine’s safety equipment. If
your machine fails any of the checks de-
scribed below you must contact your service
agent. When you buy any of our products we
guarantee the availability of professional re-
pairs and service. If the retailer who sells
your machine is not a servicing dealer, ask
him for the address of your nearest service
agent.
Muffler
The muffler is designed to reduce the noise
level and to direct the exhaust gases away
from the operator.
CAUTION! Muffler is fitted with a catalytic
converter designed to reduce harmful ex-
haust gases.
Stop switch
S Start the engine and make sure the engine
stops when you push and hold the stop
switch.
For mufflers, it is very important that you fol-
low the instructions on checking, maintain-
ing, and servicing your machine.
See Checking, maintaining and servicing the
machine’s safety equipment section.
Cutting attachment guard
WARNING: Mufflers fitted with
catalytic converters get very hot
during use and remain so for some
time after stopping. This also ap-
plies at idle speed. Contact can re-
sult in burns to the skin. Remember
the risk of fire!
S Ensure that the guard is undamaged and
is not cracked.
WARNING: The inside of the
muffler contain chemicals that may
be carcinogenic. Avoid contact with
these elements in the event of a
damaged muffler.
WARNING: Bear in mind that:
Engine exhaust fumes contain car-
bon monoxide, which can cause
carbon monoxide poisoning. For
this reason you should not start or
run the machine indoors, or any-
where that is poorly ventilated.
The exhaust fumes from the engine
are hot and may contain sparks
which can start a fire. Never start
the machine indoors or near com-
bustible material!
S Replace the guard if it has been exposed
to impact or is cracked.
S Always use the recommended guard for
the cutting attachment you are using. See
section on “Technical data”.
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SAFETY INSTRUCTIONS
Muffler
WARNING: Never use a machine
with faulty safety equipment. The
machine’s safety equipment must be
checked and maintained as
described in this section.
S Never use a machine that has a faulty
muffler.
If your machine fails any of these
checks contact your service agent to
get it repaired.
IMPORTANT!
This section describes how to choose and
maintain your cutting equipment in order to:
Obtain maximum cutting performance.
Extend the life of cutting equipment.
Only use cutting attachments with the guards
we recommend! See the section on
“Technical data”.
S Regularly check that the muffler is securely
attached to the machine.
Refer to the instructions for the cutting attach-
ment to check the correct way to load the
trimmer line and the correct line diameter.
Trimmer head
S The muffler on this unit is equipped with a
special spark arrestor mesh. The mesh
should be checked and, if necessary.
cleaned by a servicing dealer. A blocked
mesh will cause the machine to overheat,
which can lead to serious damage. Never
use a muffler with a defective spark arres-
tor mesh. See the Maintenance section.
S Only use the recommended cutting at-
tachments. See the section on “Technical
data”.
S Smaller machines generally require small
trimmer heads and vice versa. This is be-
cause when clearing using trimmer line
the engine must throw out the trimmer
line radially from the trimmer head and
overcome the resistance of the grass
being cleared.
Cutting equipment
This section describes how to choose and
maintain your cutting equipment in order to:
S Obtain maximum cutting performance.
S Extend the life of cutting equipment.
General rules:
S The length of the trimmer line is also im-
portant. A longer trimmer line requires
greater engine power than a shorter
trimmer line of the same diameter.
S Make sure that the cutter on the trimmer
guard is intact. This is used to cut the
trimmer line to the correct length.
S To increase the life of the trimmer line it
can be soaked in water for a couple of
days. This will make the line tougher so
that it lasts longer.
1. Only use cutting attachments with the
guards we recommend! See the section
on “Technical Data”.
2. Check the cutting attachment for damage
or cracks. A damaged cutting attachment
should always be replaced.
IMPORTANT!
Always ensure the trimmer line is wound
tightly and evenly around the drum, other-
wise the machine will generate harmful
vibration.
WARNING: Always stop the en-
gine 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
lead from the spark plug before
you start to work on it.
6
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SAFETY INSTRUCTIONS
General safety precautions
WARNING: A faulty cutting at-
tachment may increase the risk of
accidents.
IMPORTANT!
S The machine is only designed for trimming
grass.
Personal protection
S The only accessories you can operate
with this engine unit are the cutting at-
tachments we recommend in the “Tech-
nical data” section.
S Never use wire, rope, string, etc.
S Never use the machine if you are tired, if
you have drunk alcohol, or if you are tak-
ing medication that could affect your vi-
sion, your judgment or your coordination.
S Never use the machine in extreme weath-
er conditions such as severe cold, very hot
and/or humid climates.
S Never use a machine that has been modi-
fied in any way from its original specifica-
tion.
S Wear personal protective equipment. See
instructions in the “Personal protective
equipment” section.
S 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 quali-
fied specialists. See instructions in the
“Maintenance” section.
S All covers and guards must be fitted before
starting. Make sure the spark plug cap and
lead are not damaged. Otherwise you
could get an electric shock.
S Always wear boots and
other equipment described
in the “Personal protective
equipment” section.
S Always wear working
clothes and heavy--duty
long pants.
S Never wear loose fitting
clothes or jewelry.
S Persons with long hair
should (for personal safety)
put their hair up.
Safety instructions regarding the
surroundings
S Never allow children to use the machine.
S Ensure no one comes closer than 50 feet
(15 meters) when working.
S Never allow anyone else to use the
machine without first ensuring that they
have understood the contents of the
operator’s manual.
Safety instructions before starting
work
S The machine operator must ensure that
no people or animals come closer than
50 feet (15 meters) while working.
S Stay clear of spinning line.
S Secure or remove loose clothing or cloth-
ing with loosely hanging ties, straps, tas-
sels, etc. They can be caught in moving
parts.
S Inspect the working area. Remove any
objects such as stones, broken glass,
nails, steel wire, string, etc. that can be
thrown or can wrap around the cutting
head or shaft.
S Being fully covered also helps protect you
from debris and pieces of toxic plants
thrown by spinning line.
S Keep handles free of oil and fuel.
S Always keep the engine on the right hand
side of your body.
S Hold the unit firmly with both hands.
S Keep trimmer head below waist level and
away from all parts of your body. Do not
raise engine above your waist.
S Keep others at a safe distance. Children,
animals, onlookers and helpers should
stand outside of the safety zone of 50
feet (15 meters). Stop the machine im-
mediately if anyone should approach.
S Check the entire machine before starting
work. Replace damaged parts. Check for
fuel leakage and that all safety guards
and covers are complete and fastened
securely. Check all nuts and bolts.
S Keep all parts of your body away from
muffler and spinning line. Keep engine be-
low waist level. A hot muffler can cause
serious burns.
S Keep firm footing and balance. Do not
overreach or use from unstable surfaces
such as ladders, trees, steep slopes, roof-
tops, etc.
S Check the cutting head
for cracks or any other
damage.
S Ensure the trimmer guard
is mounted and not
damaged.
S Use only in daylight or good artificial light.
S Use only for jobs explained in this manual.
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SAFETY INSTRUCTIONS
S Check that the trimmer head and guard
S Never start the machine:
are correctly secured.
S If you have spilled fuel on it. Wipe off
the spillage and allow remaining fuel to
evaporate.
S When adjusting the carburetor, make sure
the lower end is supported and that no one
is in the immediate vicinity.
S Make sure the cutting head does not rotate
when idling.
S Make sure the handle and safety features
are in order. Never use a machine that has
parts missing or has been changed in
relation to the specification.
S Only use the machine for the purpose for
which it was intended.
S 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.
S If the machine is leaking fuel. Check
regularly for leaks from the fuel cap
and fuel lines.
S Avoid all skin contact with fuel. Fuel is
a skin irritant and may even cause
skin changes.
Transporting and storage
Starting
S 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 electri-
cal machinery, electric motors, electrical
relays/switches or boilers.
S When storing and transporting fuel al-
ways use approved containers intended
for this purpose.
S When storing the machine for long peri-
ods the fuel tank must be emptied. Con-
tact your local gas station to find out
where to dispose of excess fuel.
S Ensure the machine is cleaned and that
a complete service is carried out before
long--term storage.
WARNING: When the engine is
started with the choke in either the
choke or start throttle positions the
cutting attachment will start to
rotate immediately.
S Ensure that all of the engine covers and
housings are properly fitted before the unit
is started.
S Never start or attempt to run the unit with
the clutch, clutch drum, clutch cover, or
driveshaft removed.
S Never start the machine indoors. Exhaust
fumes can be dangerous if inhaled.
S Observe your surroundings and make sure
that there is no risk of people or animals
coming into contact with the cutting equip-
ment.
WARNING: Take care when han-
dling fuel. Bear in mind the risk of
fire, explosion and inhaling fumes.
General working instructions
IMPORTANT!
This section describes the basic safety pre-
cautions for working with trimmers. If you
encounter a situation where you are uncer-
tain how to proceed you should ask an ex-
pert. Contact your servicing dealer.
Avoid all usage which you consider to be
beyond your capability.
S See the “Starting and Stopping” section for
complete instructions.
Fuel safety
You must understand the difference between
forestry clearing, grass clearing and grass
trimming before use.
S Always use a fuel container with an anti--
spill valve.
S Never refuel the machine while the engine
is running.
Basic safety rules
S Always stop the engine and let it cool for a
few minutes before refueling.
S Make sure there is plenty of ventilation
when refueling or mixing fuel (gasoline and
2--stroke oil).
S Move the machine at least 10 feet (3 me-
ters) from the refueling point before start-
1. Look around you:
S To ensure that people, animals or other
things cannot affect your control of the
machine.
S To ensure that people, animals, etc.,
do not come into contact with the cut-
ting attachment or loose objects that
are thrown out by the cutting attach-
ment.
Min. 10 ft.
(3 m)
8
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SAFETY INSTRUCTIONS
S CAUTION! Do not use the machine
S Reduce the risk of damaging plants by
shortening the trimmer line to 4--4 1/2 inches
(10--12 cm) and reducing the engine speed.
S When trimming you should use less than
full throttle so that the trimmer line lasts
longer and to reduce the wear on the
trimmer head.
unless you are able to call for help in
the event of an accident.
2. Do not use the machine in bad weather,
such as dense fog, heavy rain, strong
wind, intense cold, etc. Working in bad
weather is tiring and often brings added
risks, such as icy ground, unpredictable
felling direction, etc.
Clearing
3. Make sure you can move and stand safely.
Check the area around you for possible ob-
stacles (roots, rocks, branches, ditches, etc.)
in case you have to move suddenly. Take
great care when working on sloping ground.
S The clearing technique removes all un-
wanted vegetation. Keep the trimmer
head just above the ground and tilt it. Let
the end of the trimmer line strike the
ground around trees, posts, statues and
the like. CAUTION! This technique
increases the wear on the trimmer line.
4. Switch off the engine before moving to
another area.
5. Never put the machine down with the engine
running or while the cutting attachment is
rotating.
S The trimmer line wears quicker and must
be fed forward more often when working
against stones, brick, concrete, metal
fences, etc., than when coming into con-
tact with trees and wooden fences.
Basic working techniques
S Always slow the engine to idle speed after
each working operation. Long periods at
full throttle without any load on the engine
can lead to serious engine damage.
S It is recommended that the engine not
be operated for longer than 1 minute at
full throttle.
Cutting
WARNING: Sometimes branches
or grass get caught between the
guard and cutting attachment.
Always stop the engine before
cleaning.
S The trimmer is ideal for cutting grass that
is difficult to reach using a normal lawn
mower. Keep the trimmer line parallel to
the ground when cutting. Avoid pressing
the trimmer head against the ground as
this can ruin the lawn and damage the
tool.
Grass trimming using a trimmer head
Trimming
S Hold the trimmer head just above the
ground at an angle. It is the end of the trim-
mer line that does the work. Let the trim-
mer line work at its own pace. Never press
the trimmer line into the area to be cut.
S Do not allow the trimmer head to con--
stantly come into contact with the ground
during normal cutting. Constant contact
of this type can cause damage and wear
to the trimmer head.
S The trimmer line 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.
9
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SAFETY INSTRUCTIONS
Sweeping
WARNING: Neither the operator
of the machine nor anyone else may
attempt to remove the cut material
while the engine is running or the
trimmer line is rotating, as this can
result in serious injury. Stop the
engine and trimmer head before you
remove material that has wound
around the drive shaft as otherwise
there is a risk of injury.
S The fan effect of the rotating line can be
used for quick and easy clearing up.
Hold the trimmer line parallel to and
above the area to be swept and move
the tool to and fro.
WARNING: Watch out for thrown
objects. Always wear eye protection.
Never lean over the cutting attach-
ment guard. Stones, rubbish, etc.
can be thrown up into the eyes
causing blindness or serious injury.
Keep unauthorized persons at a dis-
tance. Children, animals, onlookers
and helpers should be kept outside
the safety zone of 50 feet (15 meters).
Stop the machine immediately if
anyone approaches.
S When cutting and sweeping you should
use full throttle to obtain the best results.
10
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KNOW YOUR TRIMMER
4
3
1
6
7
8
13
5
12
2
10
11
9
1
14
What is what?
1. Trimmer head
2. Cutting attachment guard
3. Shaft
8. Starter handle
9. Fuel tank
10. Choke control
15
4. Loop handle
11. Air purge
5. Throttle control
6. Stop switch
7. Cylinder cover
12. Air filter cover
13. Handle adjustment
14. 2--stroke engine oil
15. Operator’s manual
11
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ASSEMBLY
NOTE: Make sure unit is assembled cor-
rectly as shown in this manual.
Fitting the trimmer guard and
trimmer head
Fitting the loop handle
S Position the handle on the shaft. Note
that the handle must be mounted be-
tween the two arrows on the shaft.
S Fit the correct trimmer guard (A) for use
with the trimmer head. Hook the trimmer
guard/combination guard onto the fitting on
the shaft and secure with the wing nut (B).
B
A
S Fit the screw, securing pate and wing
nut as shown in the diagram.
S Tighten the wing nut.
C
S Fit the dust cup (C) on the shaft. The nut
must be completely covered by the dust
cup.
S Hold the dust cup with a wrench to pre-
vent the shaft from rotating.
S Screw the trimmer head (D) onto the
shaft.
D
S To dismantle, follow the instructions in
the reverse order.
12
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FUEL HANDLING
S Always start by flling half the amount of the
Fuel mixture
gasoline to be used. Then add the entire
amount of oil. Mix (shake) the fuel mixture.
Add the remaining amount of gasoline.
S Mix (shake) the fuel mixture thoroughly
before filling the machine’s fuel tank.
CAUTION! The machine is equipped with
a two--stroke engine and must always be
run using a mixture of gasoline and two--
stroke engine oil. It is important to accu-
rately 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 drastical-
ly affect the ratio of the mixture.
WARNING: Always ensure
there is adequate ventilation when
handling fuel.
Gasoline
S Do not mix more than one month’s sup-
ply of fuel at a time.
S If the machine is not used for some time,
the fuel tank should be emptied and
cleaned.
CAUTION! Always use high quality
unleaded gasoline.
WARNING: The catalytic con-
verter muffler gets very hot during
and after use. This also applies
during idling. Be aware of the fire
hazard, especially when working
near flammable substances and/or
vapors.
S This eno operate on
unleaded gasoline.
Fueling
S The lowest recommended octane rating
is 87. If you run the engine on lower oc-
tane rating than 87, “knocking” can oc-
cur. This leads to an increased engine
temperature, which can result in a seri-
ous engine breakdown.
WARNING: Taking the following
precautions, will lessen the risk of
fire:
Do not smoke or place hot objects
near fuel.
Always shut off the engine before
refueling.
Always stop the engine and let it
cool for a few minutes before refu-
elling.
When refueling, open the fuel cap
slowly so that any excess pressure
is released gently.
Tighten the fuel cap carefully after
refueling.
Always move the machine away
from the refueling area before
starting.
S When working at continuous high revs a
higher octane rating is recommended.
Two--stroke oil
S For great results and performance use
HUSQVARNA two--stroke oil, which is
specially formulated for our two--stroke
engines. Mixture 1:50 (2%).
S To maximize the life of your trimmer, you
may choose to use a high quality syn-
thetic oil formulated for two--stroke
engines. Mixture 1:50 (2%).
S Never use two--stroke oil intended for
water--cooled outboard engines,
sometimes referred to as outboard oil.
S Never use oil intended for four--stroke
engines.
Two -stroke oil
Gasoline
2% (1:50)
U.S. gallon
1
U.S. fl. oz.
2 1/2
Min. 10 ft.
(3 m)
2 1/2
5
6 1/2
12 7/8
S Clean the area around the fuel cap.
Contamination in the tank can cause
operating problems.
S Ensure that the fuel is well mixed by shak-
ing the container before filling the tank.
Mixing
S Always mix the gasoline and oil in a
clean container intended for fuel.
13
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STARTING AND STOPPING
Cold engine
Check before starting
Primer bulb: Press the primer bulb 10
times until fuel begins to fill the bulb. The
primer bulb need not be completely filled.
S Inspect the unit before each use. Re-
place damaged parts. Check for fuel
leaks. Make sure all fasteners are in
place and secure. Make sure the cutting
attachment is properly installed and se-
curely fastened. Use only flexible, non-
metallic line recommended by the
manufacturer. Never use, for example,
wire or wire rope, which can break off
and become a dangerous projectile.
S 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.
Choke: Move the blue engine choke lever
over to the closed position.
Starting
Hold the body of the machine on the
ground using your left hand (CAUTION!
Not with your foot!).
Firmly grip the starter rope handle with
your right hand. DO NOT squeeze
throttle trigger. Slowly pull out the cord
until you feel some resistance (the starter
pawls grip); then quickly and powerfully
pull the cord.
S Never use the machine without a guard
nor with a defective guard.
Starting and stopping
Never wrap the starter cord around
your hand.
Repeat pulling the cord until the engine
attempts to start. Squeeze throttle trigger
to release the choke. Continue to hold
throttle trigger and pull starter rope until
engine runs.
NOTE: If engine dies, return blue engine
choke lever to the closed position and
repeat starting steps.
WARNING: The complete clutch,
clutch cover, and shaft must be
fitted before the machine is started,
otherwise parts could come loose
and cause personal injury.
Always move the machine away
from the refueling area before
starting. Place the machine on a
flat surface. Ensure the cutting at-
tachment cannot come into contact
with any object.
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.
Make sure no unauthorized persons
are in the working area, otherwise
there is a risk of serious personal
injury. The safety distance is 50 feet
(15 meters).
14
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STARTING AND STOPPING
Warm engine
Stopping
With a warm engine, squeeze and hold the
throttle trigger. Pull starter rope sharply
while squeezing throttle trigger until engine
runs.
Stop the engine by pushing and holding
the stop switch in the STOP position until
the engine stops.
WARNING: When the engine is
started with the choke in the closed
position the cutting attachment will
start to rotate immediately.
MAINTENANCE
The owner is responsible for the perfor-
mance of all required maintenance as
defined in the operator’s manual.
WARNING: The cutting attach-
ment may be spinning during carbu-
retor adjustments. Wear your protec-
tive equipment and observe all safe-
ty instructions. Be sure the cutting
attachment stops turning when the
engine idles. When the unit is turned
off, make sure the cutting attach-
ments has stopped before the unit is
set down.
WARNING: Improper mainte-
nance could result in serious engine
damage or in serious injury.
Carburetor
Your Husqvarna product has been designed
and manufactured to specifications that re-
duce 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 minimize harm-
ful exhaust emissions after the run--in peri-
od, ask your servicing dealer to adjust your
carburetor.
CAUTION! If the cutting attachment rotates
when the engine is idling the idle adjustment
screw T should be turned counterclockwise
until the cutting attachment stops.
Rec. idle speed:
See “Technical data” section.
Recommended max. speed:
See “Technical data” section.
WARNING: The complete clutch,
clutch cover, and shaft must be
fitted before the machine is started,
otherwise parts could come loose
and cause personal injury.
Fine adjustment of the idle speed--T
Adjust the idle speed using the idle adjust-
ment 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 counterc-
lockwise until the cutting attachment stops.
The idle speed is correctly adjusted when
the engine will run smoothly in every posi-
tion. The idle speed should also be well
below the speed at which the cutting at-
tachment starts to rotate.
Function
S The carburetor governs the engine’s
speed via the throttle control. Air and fuel
are mixed in the carburetor.
S 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 counterclockwise gives a lower
idle speed.
Idle Speed
Screw--T
Basic setting
S The basic carburetor settings are ad-
justed during testing at the factory. Fine
adjustment should be carried out by a
skilled technician.
15
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MAINTENANCE
WARNING: If the idle speed can-
WARNING: Mufflers fitted with
catalytic converters get very hot
during use and remain so for some
time after stopping. This also ap-
plies at idle speed. Contact can re-
sult in burns to the skin. Remember
the risk of fire!
not be adjusted so that the cutting
attachment stops, contact your ser-
vicing dealer. Do not use the ma-
chine until it has been correctly ad-
justed or repaired.
Unit/Maintenance Safety
Disconnect the spark plug before perform-
ing maintenance, except carburetor adjust-
ments.
WARNING: The inside of the
muffler contain chemicals that may
be carcinogenic. Avoid contact with
these elements in the event of a
damaged muffler.
Muffler
WARNING: Bear in mind that:
Engine exhaust fumes contain car-
bon monoxide, which can cause
carbon monoxide poisoning. For
this reason you should not start or
run the machine indoors, or any-
where that is poorly ventilated.
The exhaust fumes from the engine
are hot and may contain sparks
which can start a fire. Never start
the machine indoors or near com-
bustible material!
CAUTION! Muffler is fitted with a catalytic
converter designed to reduce harmful ex-
haust gases.
Spark plug
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 com-
bustible material.
The spark plug condition is influenced by:
S Incorrect carburetor adjustment.
S An incorrect fuel mixture (too much or in-
correct type of oil).
S A dirty air filter.
These factors cause deposits on the spark
plug electrodes, which may result in operat-
ing 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
0.024ë (0.6 mm). The spark plug should be
replaced after about a month in operation or
earlier if necessary.
Mufflers are equipped with a special spark
arrestor mesh. The mesh should be
checked and, if necessary. cleaned by a
servicing dealer. If the mesh is damaged,
it should be replaced. If the mesh is fre-
quently blocked, this can be a sign that the
performance of the catalytic converter is
impaired. Contact your servicing dealer to
inspect the muffler. A blocked mesh will
cause the machine to overheat and result
in damage to the cylinder and piston.
CAUTION! Always use the recommended
spark plug type! Use of the wrong spark
plug can damage the piston/cylinder.
Muffler bolts
Spark arrestor mesh
0.024ë (0.6 mm)
CAUTION! Never use a machine that has
a faulty or loose muffler. Ensure the muffler
bolts are tight.
16
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MAINTENANCE
Air filter
Maintenance schedule
Below you will find some general mainte-
nance instructions.
Daily maintenance
S Check throttle trigger and throttle trigger
lockout function.
S Check that the stop switch works
correctly.
S Check that there are no fuel leaks from
the engine, tank or fuel lines.
S Check that the cutter does not rotate
when the engine is idling.
The air filter must be regularly cleaned to
remove dust and dirt in order to avoid:
S Carburetor malfunctions
S Starting problems
S Loss of engine power
S Unnecessary wear to engine parts
S Excessive fuel consumption
S Clean the outside of the machine.
S Check that the harness is not damaged.
S Check that the blade guard is not dam-
aged or cracked.
S Replace the blade guard if it is exposed to
impact or is cracked.
S A non--balanced trimmer head induces
heavy vibrations that may damage the
machine.
S Check that nuts and screws are tight.
S Check that the trimmer head is tight.
Clean the filter every 25 hours, or more
regularly if conditions are exceptionally
dusty.
Weekly maintenance
S Check the starter and starter cord.
S Clean the carburetor area.
Cleaning the air filter
Remove the air filter cover and take out the
filter. Wash it clean in warm, soapy water.
Rinse thoroughly. Ensure that the filter is dry
before refitting it.
S Clean the outside of the spark plug. Re-
move it and check the electrode gap. Ad-
just the gap to 0.024ë (0.6 mm), or
replace the spark plug. Use resistor spark
plug Champion RCJ--8Y or equivalent.
S Clean the cooling fins on the cylinder and
check that the air intake near the starter
is not blocked.
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.
S Clean the air filter.
Monthly maintenance
S Clean the fuel tank.
S Clean the outside of the carburetor and
the space around it.
S Clean the fan and the area around it.
S Check fuel lines for cracks or other dam-
age. Change if necessary.
S Change the fuel filter in fuel tank.
S Check the clutch, clutch springs and the
clutch drum for wear. Replace if neces-
sary.
S Check electrical wires and connections.
S Replace the spark plug. Use resistor
spark plug Champion RCJ--8Y or equiva-
lent.
S Change the air filter.
17
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Trimmer Head Line Loading Instructions
1
2
3
6 m
20i
3 m
10i
4
6
5
7
8
9
18
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TECHNICAL DATA
Technical data
124C
Engine
3
Cylinder volume, cu.in./cm
Cylinder bore, inch/mm
Stroke, inch/mm
Idle speed, rpm
1.7/28
1.4/35
1.130/28.7
2,800--3,200
11,000
8,000
1.1/0.8
Yes
No
Recommended max. speed, rpm
Speed of output shaft, rpm
Max. engine output, acc. to ISO 8893, hp/kW
Catalytic converter muffler
Speed--regulated ignition system
Ignition system
Manufacturer/type of ignition system
Spark plug
Electrode gap, inch/mm
Walbro/CD
Champion RCJ--6Y
0.024/0.6
Fuel and lubrication system
Manufacturer/type of carburetor
Fuel tank capacity, US pint/liter
Weight
Weight without fuel, cutting attachment and guard, lbs/kg
Sound levels
(see note 1)
Zama
0.85/0.4
10/4.4
94/97
Equivalent sound pressure level at the user’s ear,
measured according to ANSI B175.3--1997, dB(A),
min/max:
Vibration levels
Vibration levels at handles, measured according to
2
ANSIB175.3--1997, m/s
At idle, left/right handles:
3/5
9/8
At max. speed, left/right handles:
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.
Model 124C (3/8 RH arbor shaft thread)
Approved accessories Type
Trimmer head T25
Cutting attachment guard, part. no.
537 33 83--03
19
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WARRANTY STATEMENT
THESE PRODUCTS EXCEPT TO THE EX-
SECTION 1: LIMITED WARRANTY
Husqvarna Forest & Garden Company
(“Husqvarna”) warrants Husqvarna product
to the original purchaser to be free from de-
fects in material and workmanship from the
date of purchase for the “Warranty Period” of
the products as set forth below:
TENT PROHIBITED BY APPLICABLE LAW.
ANY IMPLIED WARRANTY OR MER-
CHANTABILITY OR FITNESS FOR A PAR-
TICULAR PURPOSE ON THESE PROD-
UCTS IS LIMITED IN DURATION TO THE
WARRANTY PERIOD AS DEFINED IN THE
LIMITED WARRANTY STATEMENT. HUSQ-
VARNA RESERVES THE RIGHT TO
CHANGE OR IMPROVE THE DESIGN OF
THE PRODUCT WITHOUT NOTICE, AND
DOES NOT ASSUME OBLIGATION TO UP-
DATE PREVIOUSLY MANUFACTURED
PRODUCTS.
Lifetime Warranty: Trimmer shafts, ignition
coils and modules.
2 Year NON -COMMERCIAL Warranty:
Trimmers for non--commercial, non--profes-
sional, non--institutional or non--income pro-
ducing use, except as herein stated.
Emission control system components neces-
sary to comply with CARB--TIER II and EPA
regulations.
1 Year Warranty: All trimmers used for
commercial, institutional, professional, or in-
come producing purposes or use.
Some states do not allow the exclusion of in-
cidental or consequential damages, or limita-
tions on how long an implied warranty lasts,
so the above limitations or exclusions may not
apply to you. This warranty gives you specific
legal rights, and you may also have other
rights which vary from state to state.
SECTION 2: HUSQVARNA’S OB-
LIGATIONS UNDER THE WARRANTY
Husqvarna will repair or replace defective
components without charge for parts or labor
if a component fails because of a defect in
material or workmanship during the warranty
period.
SECTION 5: CUSTOMER RE-
SPONSIBILITIES
The product must exhibit reasonable care,
maintenance, operation, storage and gener-
al upkeep as written in the maintenance
section of the operator’s manual. Should an
operational problem or failure occur, the
product should not be used, but delivered
as is to an authorized Husqvarna dealer for
evaluation. Proof of purchase, as explained
in Section 6, rests solely with the customer.
SECTION 3: ITEMS NOT COVERED
BY THIS WARRANTY
The following items are not covered by this
warranty:
(1) Normal customer maintenance items
which become worn through normal regu-
lar use, including, but not limited to, filters,
lubricants, rewind springs, spark plugs,
and starter ropes.
(2) Natural discoloration of material due to
ultraviolet light.
SECTION 6: PROCEDURE TO OB-
TAIN WARRANTY CONSIDERATION
It is the Owner’s and Dealer’s responsibility to
make certain that the Warranty Registration
Card is properly filled out and mailed to Husq-
varna Forest & Garden Company. This card
should be mailed within ten (10) days from the
date of purchase in order to confirm the war-
ranty and to facilitate post--sale service.Proof
of purchase must be presented to the autho-
rized Husqvarna dealer in order to obtain war-
ranty service. This proof must include date
purchased, model number, serial number, and
complete name and address of the selling
dealer.To obtain the benefit of this warranty,
the product believed to be defective must be
delivered to an authorized Husqvarna dealer
in a timely manner, no later than thirty (30)
days from date of the operational problem or
failure. The product must be delivered at the
owner’s expense. Pick--up and delivery
SECTION 4: EXCEPTIONS AND
LIMITATIONS
This warranty shall be inapplicable to de-
fects resulting from the following:
(1) Accident, abuse, misuse, negligence and
neglect, including stale fuel, dirt, abra-
sives, moisture, rust, corrosion, or any
adverse reaction due to incorrect storage
or use habits.
(2) Failure to operate or maintain the unit in
accordance with the operator’s manual or
instruction sheet furnished by Husqvarna.
(3) Alterations or modifications that change
the intended use of the product or affects
the product’s performance, operation,
safety, or durability, or causes the product
to fail to comply with any applicable laws.
(4) Additional damage to parts or compo-
nents due to continued use occurring af-
ter any of the above.
REPAIR OR REPLACEMENT AS PRO-
VIDED UNDER THIS WARRANTY IS THE
EXCLUSIVE REMEDY OF THE PURCHAS-
ER. HUSQVARNA SHALL NOT BE LIABLE
FOR ANY INCIDENTAL OR CONSEQUEN-
TIAL DAMAGES FOR BREACH OF ANY
EXPRESS OR IMPLIED WARRANTY ON
charges are not covered by this warranty. An
authorized Husqvarna dealer can be normally
located through the “Yellow Pages” of the lo-
cal telephone directory or by calling
1--800--HUSKY62 for a dealer in your area.
7349 Statesville Road
CHARLOTTE, NC 28269
20
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U.S. EPA / CALIFORNIA / ENVIRONMENT CANADA
EMISSION CONTROL WARRANTY STATEMENT
YOUR WARRANTY RIGHTS AND
OBLIGATIONS:
WARRANTY COMMENCEMENT
DATE:
The U.S. Environmental Protection Agency,
California Air Resources Board, Environment
Canada and HUSQVARNA are pleased to
explain the emissions control system warranty
on your year 2005 and later small off--road
engine. In California, all small off--road en-
gines must be designed, built, and equipped
to meet the State’s stringent anti--smog stan-
dards. HUSQVARNA must warrant the emis-
sion control system on your small off--road
engine for the periods of time listed below pro-
vided there has been no abuse, neglect, or
improper maintenance of your small off--road
engine. Your emission control system includes
parts such as the carburetor and the ignition
system. Where a warrantable condition exists,
HUSQVARNA will repair your small off--road
engine at no cost to you. Expenses covered
under warranty include diagnosis, parts and
labor.
The warranty period begins on the date the
small off--road engine is purchased.
LENGTH OF COVERAGE:
This warranty shall be for a period of two
years from the initial date of purchase.
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 ser-
vicing center. If you have any questions re-
garding your warranty rights and responsi-
bilities, you should contact your nearest au-
thorized service center or call HUSQVAR-
NA at 1--800--487--5963.
WARRANTY PERIOD:
Any warranted part which is not scheduled
for replacement as required maintenance,
or which is scheduled only for regular in-
spection to the effect of “repair or replace
as necessary” shall be warranted for 2
years. Any warranted part which is sched-
uled for replacement as required mainte-
nance shall be warranted for the period of
time up to the first scheduled replacement
point for that part.
MANUFACTURER’S WARRANTY
COVERAGE:
If any emissions related part on your engine
(as listed under Emissions Control Warran-
ty Parts List) is defective or a defect in the
materials or workmanship of the engine
causes the failure of such an emission re-
lated part, the part will be repaired or re-
placed by HUSQVARNA.
DIAGNOSIS:
The owner shall not be charged for diag-
nostic labor which leads to the determina-
tion that a warranted part is defective if the
diagnostic work is performed at an ap-
proved HUSQVARNA servicing center.
OWNER’S WARRANTY RESPONSI-
BILITIES:
As the small off--road engine owner, you are
responsible for the performance of the re-
quired maintenance listed in your operator’s
manual. HUSQVARNA recommends that
you retain all receipts covering maintenance
on your small off--road engine, but HUSQ-
VARNA cannot deny warranty solely for the
lack of receipts or for your failure to ensure
the performance of all scheduled mainte-
nance. As the small off--road engine owner,
you should be aware that HUSQVARNA
may deny you warranty coverage if your
small off--road engine or a part of it has
failed due to abuse, neglect, improper main-
tenance, unapproved modifications, or the
use of parts not made or approved by the
original equipment manufacturer. You are
responsible for presenting your small off--
road engine to a HUSQVARNA authorized
repair center as soon as a problem exists.
Warranty repairs should be completed in a
reasonable amount of time, not to exceed
30 days. If you have any questions regard-
ing your warranty rights and responsibilities,
you should contact your nearest authorized
service center or call HUSQVARNA at
1--800--487--5963.
CONSEQUENTIAL DAMAGES:
HUSQVARNA may be liable for damages to
other engine components caused by the fail-
ure of a warranted part still under warranty.
WHAT IS NOT COVERED:
All failures caused by abuse, neglect, or
improper maintenance are not covered.
ADD--ON OR MODIFIED PARTS:
The use of add--on or modified parts can be
grounds for disallowing a warranty claim.
HUSQVARNA is not liable to cover failures
of warranted parts caused by the use of
add--on or modified parts.
HOW TO FILE A CLAIM:
If you have any questions regarding your
warranty rights and responsibilities, you
should contact your nearest authorized ser-
vice center or call HUSQVARNA at
1--800--487--5963.
WHERE TO GET WARRANTY SER-
VICE:
Warranty services or repairs shall be pro-
vided at all HUSQVARNA service centers.
Call 1--800--487--5963.
21
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U.S. EPA / CALIFORNIA / ENVIRONMENT CANADA
EMISSION CONTROL WARRANTY STATEMENT
MAINTENANCE, REPLACEMENT
AND REPAIR OF EMISSION RE-
LATED PARTS:
Any HUSQVARNA approved replacement
part used in the performance of any warran-
ty maintenance or repair on emission re-
lated parts will be provided without charge
to the owner if the part is under warranty.
EMISSION CONTROL WARRANTY
PARTS LIST:
Carburetor, Ignition System: Spark Plug
(covered up to maintenance schedule), Igni-
tion Module, Muffler including Catalyst
MAINTENANCE STATEMENT:
The owner is responsible for the perfor-
mance of all required maintenance as de-
fined in the operator’s manual.
This engine is certified to be emissions compliant for the following use:
Moderate (50 hours)
Intermediate (125 hours)
Extended (300 hours)
22
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