Husqvarna 128LD, 128CD User Manual
CONTENTS
f
Contents
CONTENTS
Contents 2........................
Note the following before starting 2....
KEY TO SYMBOLS
Symbols 3.........................
SAFETY INSTRUCTIONS
Personal protective equipment 4......
Machine’s safety equipment 4........
Cutting equipment 5.................
Checking, maintaining and servicing
the machine’s safety equipment 5.....
General safety precautions 8.........
Starting 9.........................
Fuel safety 9.......................
Transporting and storage 9...........
General working instructions 9........
Basic safety rules 9.................
Basic working techniques 10..........
KNOW YOUR TRIMMER
Know your trimmer 12................
ASSEMBLY
Fitting the loop handle 13.............
Assembling and dismantling the
two--piece shaft 13...................
Fitting the trimmer guard and
trimmer head 14.....................
FUEL HANDLING
Fuel 15............................
Fueling 15..........................
STARTING AND STOPPING
Check before starting 16..............
Starting and stopping 16..............
MAINTENANCE
Carburetor 18.......................
Muffler 18..........................
Spark plug 19.......................
Two--piece shaft 19..................
Air filter 19..........................
Bevel gear 20.......................
Maintenance schedule 20.............
Trimmer head line loading instructions 21..
TECHNICAL DATA
Technical data 22....................
EMISSION CONTROL
WARRANTY STATEMENT 23.........
Note the following before starting:
Husqvarna AB has a policy of continuous product development and therefore reserves the
right to modify the design and appearance of
products without prior notice. Long--term exposure to noise can result in permanent hearing
impairment. Always use approved hearing
protection. Maintenance, replacement, or repair
of the emission control devices and system
may be performed by any nonroad engine
repair establishment or individual.
The Emissions Compliance Period re
to on the Emissions Compliance label indicates
the number of operating hours for which the
engine has been shown to meet Federal emission s req uireme nts. Category C = 50 hours,
B= 125 hours, and A = 300 hours.
For reference, please fill out the following
information that will be needed for future
servicing of your trimmer:
Model Number:
Serial Number:
Purchase Date:
Purchased From:
WARNING: A clearing saw,
brushcutter or trimmer can be
dangerous if used incorrectly or
carelessly, and can cause serious
or fatal injury to the operator or
others. It is extremely important
that you read and understand the
contents of this operator’s manual.
WARNING: Under no circum-
stances may the design of the
machine be modified without the
permission of the manufacturer.
Always use genuine accessories.
Non--authorized modifications
and/or accessories can result
in serious personal injury or the
death of the operator or others.
Your warranty may not cover
damage or liability caused by the
use of non--authorized accessories or replacement parts.
erred
For customer assistance, call:
1-800-487-5951
Contact us at our website:
www.husqvarna.com
WARNING
The engine exhaust from this product contains
chemicals known to the State of California to c ause
cancer, birth defects or other reproductive harm.
115374327 Rev. 6 5/31/12
English--- 2
KEY TO SYMBOLS
Symbols
WARNING: Clearing saws, brush-
cutters and trimmers can be dangerous! Careless or incorrect use
can result in serious or fatal
injury to the operator or others.
WARNING: Read the operator’s
manual before use. Failure to follow
instructions could result in serious
injury to the operator and/or
bystanders. Save operator’s manual.
Always wear:
S Hearing protection
S Approved eye protection
Max. speed of output shaft, rpm
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).
Arrows which show limits for
handle positioning.
Only intended for trimmer heads.
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.
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.
Regular cleaning is required.
Visual check.
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.
115374327 Rev. 6 5/31/12
English--- 3
SAFETY INSTRUCTIONS
Personal protective equipment
WARNING: Whenever you use a
clearing 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
accident. Ask your dealer for help
when choosing protective equipment.
IMPORTANT! Listen for warning signals
or shouts when you are wearing hearing
protection. Always remove your hearing
protection as soon as the engine stops.
GLOVES
Gloves should be worn when necessary,
e.g., when fitting cutting attachments.
HEARING PROTECTION
Wear hearing protection that provides
adequate noise reduction.
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.
FIRST AID KIT
Always have a first aid kit nearby.
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
“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 servicing dealer.
WARNING: Never use a machine
that has faulty safety equipment!
Carry out the inspection, maintenance and service routines listed in
this section.
Throttle lock--out
The throttle lock--out is designed to prevent
accidental operation of the throttle control.
When you press the lock--out (A) (i.e. when
you grasp the handle) it releases the
throttle control (B). When you release the
handle the throttle control and the throttle
lock--out both move back to their original
positions. This movement is controlled by
two independent return springs. This arrangement means that the throttle control is
automatically locked at the idle setting.
A
BOOTS
Wear sturdy, non--slip boots.
CLOTHING
Wear clothes made of a strong fabric and
avoid loose clothing that can catch on
twigs and branches. Always wear heavy,
long pants. Do not wear jewelry, shorts
sandals or go barefoot. Secure hair so it is
above shoulder level.
115374327 Rev. 6 5/31/12
B
Stop switch
Make sure the engine stops when you push
and hold the stop switch.
English--- 4
SAFETY INSTRUCTIONS
Cutting attachment guard
This guard is intended to prevent loose objects from being thrown towards the operator. The guard also protects the operator
from accidental contact with the cutting attachment.
WARNING: Never use a cutting
attachment without an approved
guard. See the section on “Techn ical
data”. If an incorrect or faulty guard
is fitted this can cause serious
personal injury.
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 experience 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.
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 exhaust gas
emissions.
For mufflers, it is very important that you follow the instructions on checking, maintaining, and servicing your machine.
See Checking, maintaining and servicing the
machine’s safety equipment section.
CAUTION: Mufflers fitted with cata-
lytic converters get very hot during use
and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of fire!
WARNING: The inside of the
muffler contain chemicals that may
be carcinogenic. Avoid contact
with these elements in the event of
a damaged muffler.
WARNING: Engine exhaust
fumes contain carbon monoxide,
which can cause carbon monoxide
poisoning. DO NOT
machine indoors, or anywhere that
is poorly ventilated. The exhaust
fumes from the engine are hot and
may contain sparks which can start
a fire. Never start the machine indoors or near combustible material!
Cutting equipment
A trimmer head is intended for trimming
grass.
start or run the
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 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.
115374327 Rev. 6 5/31/12
English--- 5
SAFETY INSTRUCTIONS
Throttle lock--out
S Make sure the throttle control is locked
at the idle setting when the throttle lock-out is released.
S Press the throttle lock--out and make
sure it returns to its original position
when you release it.
S Check that the throttle control and
throttle lock--out move freely and that the
return springs work properly.
Stop switch
S Start the engine and make sure the engine
stops when you push and hold the stop
switch.
Cutting attachment guard
S Ensure that the guard is undamaged and
is not cracked.
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”.
Muffler
S See instructions under the section
“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 carburetor idle setting
must be checked. See instructions under
the section “Maintenance”.
115374327 Rev. 6 5/31/12
S Never use a machine that has a faulty
muffler.
S Regularly check that the muffler is securely
attached to the machine.
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 arrestor mesh. See the Maintenance section.
English--- 6
SAFETY INSTRUCTIONS
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
:
Trimmer head
S Only use the recommended cutting at-
tachments. See the section on “Technical
data”.
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.
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 servicing dealer to get
it repaired. Use of a machine with
faulty safety equipment increases
the risk of serious personal injury to
the operator or others.
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
“T echnical data”.
Refer to the instructions for the cutting attachment to check the correct way to load the
trimmer line and the correct line diameter.
S Smaller machines generally require small
trimmer heads and vice versa. This is because 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.
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.
IMPORTANT!
Always ensure the trimmer line is wound
tightly and evenly around the drum, otherwise 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.
115374327 Rev. 6 5/31/12
English--- 7
SAFETY INSTRUCTIONS
General safety precautions
IMPORTANT!
S The machine is only designed for trimming
grass.
S The only accessories you can operate
with this engine unit are the cutting attachments we recommend in the “Technical 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 taking medication that could affect your vision, your judgment or your coordination.
S Never use the machine in extreme weath-
er condi tions 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 specification.
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 qualified 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 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, tassels, etc. They can be caught in moving
parts.
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 all parts of your body away from
muffler and spinning line. Keep engine below 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, rooftops, etc.
S Use only in daylight or good artificial light.
S Use only for jobs explained in this manual.
WARNING: A faulty cutting at-
tachment may increase the risk of
accidents.
Personal protection
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 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 Keep others at a safe distance. Children,
animals, onlookers and helpers should
stand outside of the safety zone of 50
feet (15 meters). Bystanders should be
encouraged to wear safety glasses. Stop
the machine immediately 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 Check the cutting head
for cracks or any other
damage.
S Ensure the trimmer guard
is mounted and not
damaged.
115374327 Rev. 6 5/31/12
English--- 8
SAFETY INSTRUCTIONS
h
S Check that the trimmer head and guard
are correctly secured.
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.
Starting
WARNING: When the engine is
startedwiththechokeineitherthe
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 equipment.
S See the “Starting and Stopping” section for
complete instructions.
Fuel safety
S Always use a fuel container with an anti--
spill valve.
S Never refuel the machine while the engine
is running.
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 starting it.
Min. 10 ft.
(3 m)
115374327 Rev. 6 5/31/12
S Never start the machine:
S If you have spilled fuel on it. Wipe off
the spillage and allow remaining fuel to
evaporate.
S If you have spilled fuel on yourself or
your clothes, change your clothes. Was
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
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 electrical 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. Contact your local gas station to find out
where to dispose of excess fuel.
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 precautions for working with trimmers. If you
encounter a situation where you are uncertain how to proceed you should ask an expert. Contact your servicing dealer.
Avoid all usage which you consider to be
beyond your capability.
You must understand the difference between
forestry clearing, grass clearing and grass
trimming before use.
Basic safety rules
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 cutting attachment or loose objects that
are thrown out by the cutting attachment.
English--- 9
SAFETY INSTRUCTIONS
S CAUTION! Do not use the machine
unless you are able to call for help in
the event of an accident.
2. Do not use the machine in bad weather,
such as dense fog, heavy rain, strong
wind, intense cold, etc. Working in bad
weather is tiring and often brings added
risks, such as icy ground, unpredictable
felling direction, etc.
3. Make sure you can move and stand safel y.
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.
4. Switch off the engine before moving to
another area.
5. Never put the machine down with the engine
running.
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.
WARNING: Sometimes branches
or grass get caught between the
guard and cutting attachment.
Always stop the engine before
cleaning.
Grass trimming using a trimmer head
Trimming
S Reduce the risk ofdamaging 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.
Clearing
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. IMPORTANT! This technique
increases the wear on the trimmer line.
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 contact with trees and wooden fences.
Cutting
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.
S Hold the trimmer head just above the
ground at an angle. It is the end of the trimmer line that does the work. Let the trimmer line work at its own pace. Never press
the trimmer line into the area to be cut.
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.
115374327 Rev. 6 5/31/12
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.
English--- 10
SAFETY INSTRUCTIONS
Sweeping
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.
S When cutting and sweeping you should
use full throttle to obtain the best results.
WARNING: Sometimes
branches or grass get caught
between the guard and cutting
attachment or wrapped around the
shaft. 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.
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.
115374327 Rev. 6 5/31/12
English--- 11
KNOW YOUR TRIMMER
2
1
3
128LD
19
7
6
4
1
1
128CD
4
17
18
Know your trimmer
1. Trimmer head 12. Starter handle
2. Grease filler cap 13. Fuel tank
3. Bevel gear 14. Choke control
4. Cutting attachment guard 15. Primer bulb
5. Upper shaft 16. Air filter cover
6. Lower shaft 17. Handle adjustment
7. Loop handle 18. Drive disc
8. Throttle control 19. Shaft coupling
9. Stop switch 20. 2--stroke engine oil
10.Throttle lock--out 21. Operator’s manual (EPA)
11.Cylinder cover
15
10
13
11
12
21
20
9
5
8
16
14
115374327 Rev. 6 5/31/12
English--- 12
ASSEMBLY
NOTE: Make sure unit is assembled cor-
rectly as shown in this manual.
Fitting the l oop handle
S Position the handle on the upper shaft.
Note that the handle must be mounted
between the two arrows on the shaft.
S Fit the screw, securing plate and wing
nut as shown in the diagram.
S Tighten the wing nut.
Assembling and dismantling
the two--piece shaft
Dismantling:
S Loosen the coupling by turning the knob.
A
S Press and hold the locking/release but-
ton (A).
S While securely holding the engine and
upper shaft, pull the attachment straight
out of the coupling.
Assembly:
S Loosen the coupling by turning the knob.
S Position locking/release button (A) of
attachment into guide recess (B) of
coupling.
A
S Push the attachment into the coupling
until the locking/release button snaps
into the primary hole (C).
S Before using the unit, tighten the knob
securely.
WARNING: All attachments are
designedtobeusedintheprimary
hole unless otherwise stated in the
applicable attachment instruction
manual. Using the wrong hole could
lead to serious injury or damage to
the unit.
115374327 Rev. 6 5/31/12
B
C
Fitting the trimmer guard and
trimmer head (Model 128LD)
S Fit the correct trimmer guard (D) for use
with the trimmer head. Hook the trimmer
guard/combination guard onto the fitting
on the shaft and secure with the bolt (E).
E
D
S Fit the drive disc (F) on the output shaft.
S Turn the shaft until one of the holes in the
drive disc aligns with the corresponding
hole in the gear housing.
S Insert hex wrench (G) in the hole to lock
the shaft.
S Screw on the trimmer head (H) in the op-
posite direction to the direction of rotation.
S To dismantle, follow the instructions in
the reverse order.
H
D
English--- 13
F
G
ASSEMBLY
Fitting the trimmer guard and
trimmer head (Model 128CD)
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).
A
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.
S To dismantle, follow the instructions in
the reverse order.
B
D
115374327 Rev. 6 5/31/12
English--- 14
FUEL HANDLING
Fuel mixture
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 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.
WARNING: Fuel and fuel fumes
are highly flammable 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.
Gasoline
CAUTION! Always use high quality
unleaded gasoline.
S This engine is certified to operate on
unleaded gasoline.
S The lowest recommended octane rating
is 87. If you run the engine on lower octane rating than 87, “knocking” can occur. This leads to an increased engine
temperature, which can result in a serious engine breakdown.
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 synthetic 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.
Gasoline
U.S. gallon U.S. fl. oz.
121/2
2 1/2 6 1/2
5127/8
115374327 Rev. 6 5/31/12
Two -- stroke oil
2% (1:50)
Mixing
S Always mix the gasoline and oil in a
S Always start by flling half the amount of the
S Mix (shake) the fuel mixture thoroughly
S Do not mix more than one month’s sup-
S If the machine is not used for some time,
Fueling
S Clean the area around the fuel cap.
S Ensure that the fuel is well mixed by shak-
clean container intended for fuel.
gasoline to be used. Then add the entire
amount of oil. Mix (shake) the fuel mixture.
Add the remaining amount of gasoline.
before filling the machine’s fuel tank.
ply of fuel at a time.
the fuel tank should be emptied and
cleaned.
WARNING: The catalytic convert-
er muffler gets very hot during and
after use. This also applies during
idling.Beawareofthefirehazard,
especially when working near flammable substances and/or vapors.
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 refueling.
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.
Min. 10 ft.
(3 m)
Contamination in the tank can cause
operating problems.
ing the container before filling the tank.
English--- 15
STARTING AND STOPPING
Check before starting
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 securely fastened. Use only flexible, nonmetallic 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.
S Never use the machine without a guard
nor with a defective guard.
Starting and stopping
Cold engine
Primer bulb: Press the primer bulb 10
times until fuel begins to fill the bulb. The
primer bulb need not be completely filled.
Choke: Move the blue engine choke lever
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.
Never wrap the starter cord around
your hand.
Repeat pulling the cord until the engine
attempts to start. Move the blue engine
choke lever to the ½ position. Pull starter
rope until engine runs. Move the blue engine choke lever to the opened position.
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 attachment cannot come into contact
with any object.
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).
115374327 Rev. 6 5/31/12
NOTE: If engine dies, return blue engine
choke lever to the closed position and
repeat starting steps.
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.
English--- 16
STARTING AND STOPPING
Warm engine
With a warm engine, move the blue engine
choke lever to the ½ position. Pull starter
rope until engine runs. Move the blue
engine choke lever to the opened position.
Stopping
Stop the engine by pushing and holding
the stop switch in the STOP position until
the engine stops.
WARNING: Whentheengineis
started with the choke in the closed
position the cutting attachment will
start to rotate immediately.
115374327 Rev. 6 5/31/12
English--- 17
MAINTENANCE
f
The owner is responsible for the per
mance of all required maintenance as
defined in the operator’s manual.
Carburetor
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 minimize harmful exhaust emissions after the run--in period, ask your servicing dealer to adjust your
carburetor.
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.
or-
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.
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.
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: Iftheidlespeed
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.
Fine adjustment of the idle speed--T
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 counterclockwise until the cutting attachment stops.
115374327 Rev. 6 5/31/12
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.
Idle Speed
Screw--T
WARNING: If the idle speed can-
not be adjusted so that the cutting
attachment stops, contact your servicing dealer. Do not use the machine until it has been correctly adjusted or repaired.
Unit/Maintenance Safety
Disconnect the spark plug before performing maintenance, except carburetor adjustments.
Muffler
CAUTION! Muffler is fitted with a catalytic
converter designed to reduce exhaust gas
emissions.
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.
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. Ifthemeshisfrequently 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.
English--- 18
MAINTENANCE
Muffler bolts
Spark arrestor mesh
CAUTION! Never use a machine that has
a faulty or loose muffler. Ensure the muffler
bolts are tight.
CAUTION: Mufflers fitted with cata-
lytic 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. Remembertheriskoffire!
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: Engine exhaust
fumes contain carbon monoxide,
which can cause carbon monoxide
poisoning. DO NOT
machine indoors, or anywhere that
is poorly ventilated. The exhaust
fumes from the engine are hot and
may contain sparks which can start
a fire. Never start the machine indoors or near combustible material!
Spark plug
start or run the
0.024″ (0.6 mm)
Two--piece shaft
The drive shaft end in the lower shaft
should be lubricated with grease every 30
hours. There is a risk that the drive shaft
ends (splined coupling) will seize if they
are not lubricated regularly.
Air filter
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
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 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
0.024″ (0.6 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.
115374327 Rev. 6 5/31/12
Clean the filter every 25 hours, or more
regularly if conditions are exceptionally
dusty.
Cleaning the air filter
Remove the air filter cover and take out the
filter. Wash it clean in warm, soapy water.
Rinse thoroughly. Ensure that the filter is dry
before refitting it.
An air filter that has been in use for a long
time cannot be cleaned completely. The
filter must therefore be replaced with a new
one at regular intervals. A damaged air
filter must always be replaced.
English--- 19
MAINTENANCE
Bevel gear (128LD)
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.
The grease in the bevel gear does not normally need to be changed except if repairs
are carried out.
Maintenance schedule
Below you will find some general maintenance instructions.
Daily maintenance
S Check throttle trigger and throttle trigger
lockout function.
S Checkthatthestopswitchworks
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.
S Clean the outside of the machine.
S Check that the harness is not damaged.
S Check that the cutting attachment guard
is not damaged or cracked.
S Replace the guard if it is exposed to im-
pact 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 screws that hold the bevel
gear are tight.
S Check that the trimmer head is tight.
Weekly maintenance
S Check the starter and starter cord.
S Clean the carburetor area.
S Clean the outside of the spark plug. Re-
move it and check the electrode gap. Adjust the gap to 0.024″ (0.6 mm), or
replace the spark plug. Use resistor spark
plug Champion RCJ--6Y or equivalent.
S Clean the cooling fins on the cylinder and
check that the air intake near the starter
is not blocked.
S Check that the bevel gear is filled with
grease up to 3/4 full. Use special grease.
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 necessary.
S Check electrical wires and connections.
S Replace the spark plug. Use resistor
spark plug Champion RCJ--6Y or equivalent.
S Change the air filter.
115374327 Rev. 6 5/31/12
English--- 20
Trimmer Head Line Loading Instructions
6m
20i
3m
10i
115374327 Rev. 6 5/31/12
English--- 21
TECHNICAL DATA
Technical data
Engine
Cylinder volume, cu.in./cm
Cylinder bore, inch/mm 1.4/35 1.4/35
Stroke, inch/mm 1.130/28.7 1.130/28.7
Idle speed, rpm 2,800--3,200 2,800--3,200
Recommended max. speed, rpm 10,000 11,000
Speed of output shaft, rpm 8,000 8,000
Max. engine output, acc. to ISO 8893, hp/kW 1.1/0.8 1.1/0.8
Catalytic converter muffler Yes Yes
Speed--regulated ignition system Yes Yes
Ignition system
Manufacturer/type of ignition system Walbro/CD Walbro/CD
Spark plug Champion Champion
Electrode gap, inch/mm 0.024/0.6 0.024/0.6
Fuel and lubrication system
Manufacturer/type of carburetor Zama Zama
Fuel tank capacity, US pint/liter 0.85/0.4 0.85/0.4
Weight
Weight without fuel, cutting attachment and guard, lbs/kg 10/4.4 11/4.8
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: 94/97 94/97
Vibration levels
Vibration levels at handles, measured according to ANSI
B175.3--1997, m/s
At idle, left/right handles: 3/5 3/5
At max. speed, left/right handles: 9/8 9/8
NOTE! This spark ignition system complies with the Canadian standard ICES--002.
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.
These attachments used in combination with the specified powerhead have been evaluated
to ANSI B175.3--2003, “Grass Trimmers and Brushcutters -- Safety Requirements”. These
combinations have been evaluated by Underwriter’s Laboratories Inc. (UL) and are consequently UL listed:
Model 128CD (3/8 RH arbor shaft thread)
Approved accessories Type Cutting attachment / guard, part. no.
Trimmer head TNG7 537 41 92-14 / 545 03 11-01
Model 128LD (M10 LH arbor shaft thread)
Approved accessories Type Cutting attachment / guard, part. no.
Trimmer head T25 537 33 83-06 / 545 03 09-01
Plastic blades Tricut 300 mm 531 00 38--11 / 545 03 09-01
These accessories used in combination with the specified powerheads have been evaluat-
ed to applicable ISO-- and EN safety requirement standards by the Swedish Machinery
Testing Institute:
Attachments Part. no.
Edger attachment with shaft 952 711 607
Cultivator attachment with shaft 952 711 608
Blower attachment with shaft 952 711 609
Brushcutter attachment with shaft 952 711 610
Pruner attachment with shaft 952 711 612
115374327 Rev. 6 5/31/12
3
2
128CD 128LD
1.7/28 1.7/28
RCJ--8Y RCJ--8Y
English--- 22
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