Husqvarna 240RBD User Manual
Operator´s manual
240RBD
Please read these instructions carefully and make sure
you understand them before using the machine.
English
Symbols
SYMBOL EXPLANATION
WARNING! Clearing saws,
brushcutters and trimmers can be
dangerous!
Careless or incorrect use can result in
serious or fatal injury to the operator
or others.
Read through the Operator‘s Manual
carefully and understand the content
before using the machine.
Always use
• A protective helmet where there is
a risk of falling objects
• Ear protection
• Approved eye protection
Max. speed of output axle, rpm
Always wear approved protective
gloves.
Use anti-slip and stable boots.
Only use non-metallic, flexible
cutting elements, that is trimmer
head with trimmer cord.
Noise emission to the environment
according to the European
Community’s Directive. The
machine’s emission is specified in
chapter Technical data and on label.
15 m
50FT
15 m
50FT
This product is in accordance with
applicable EC directives.
Beware of thrown objects and
ricochets.
The operator of the machine shall
ensure, while working, that no
persons or animals come closer than
15 metres.
Machines fitted with clearing or
grass blades can be thrown violently
to the side when the blade comes
into contact with a fixed object. The
blade can cause the amputation of
arms and legs. Always keep people
and animals at least 15 metres from
the machine.
Other symbols/decals on the machine refer to
special certification requirements for certain
markets.
Checks and/or maintenance should
be carried out with the engine
switched off, with the stop switch in
the STOP position.
Always wear approved protective
gloves.
Regular cleaning required.
Ocular control.
2 – English
Arrows which show limits for handle
mounting.
Approved eye protection must always
be used.
CONTENTS
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.
WARNING!
!
Under no circumstances may the design
of the machine be modified without the
permission of the manufacturer. Always
use genuine accessories. Non-authorized
modifications and/or accessories can
result in serious personal injury or the
death of the operator or others.
List of contents
SYMBOL EXPLANATION
Symbols ............................................................................... 2
CONTENTS
List of contents .................................................................... 3
SAFETY INSTRUCTIONS
Personal protective equipment ............................................. 4
The machine‘s safety equipment .......................................... 4
Control, maintenance and service of the machine‘s safety
equipment...................................................................... 6
Cutting equipment .............................................................. 8
General safety instructions ................................................... 9
General working instructions............................................. 10
Adjusting the harness and clearing saw............................... 10
Basic clearing techniques.................................................... 11
WHAT IS WHAT?
What is what on the grass trimmer/brush cutter? ............... 13
ASSEMBLY
Assembling the J-handle and off-loading strap ................... 14
Transport position, J-handle .............................................. 14
Assembly of the blade and trimmer head............................ 14
Assembling the blade guard and grass blade ....................... 14
Assembling the spray guard and
trimmer head Superauto II........................................... 15
Assembling other guards and cutting equipment................ 15
Assembling and dismantling the two-part shaft.................. 16
Adjusting the harness and clearing saw............................... 16
FUEL HANDLING
Fuel mixture ...................................................................... 17
Fuelling.............................................................................. 17
START AND STOP
Control before starting....................................................... 18
Start and stop..................................................................... 18
MAINTENANCE
Carburettor........................................................................ 19
Muffler .............................................................................. 21
Cooling system .................................................................. 21
Air filter............................................................................. 21
Drive shaft ......................................................................... 22
Angle gear.......................................................................... 23
Two-part shaft.................................................................... 23
Spark plug.......................................................................... 23
Filing the grass blade.......................................................... 23
Maintenance schedule........................................................ 24
TECHNICAL DATA
240RBD ............................................................................ 26
English – 3
SAFETY INSTRUCTIONS
Personal protective equipment
IMPORTANT INFORMATION
• A clearing saw, brushcutter or trimmer used
incorrectly or carelessly can become a dangerous
tool, that can cause serious or fatal injury to the
operator or others. It is extremely important that
you read and understand the content of this manual.
• When using a clearing saw, brushcutter or trimmer, personal protective equipment approved by
the appropriate authorities must be used. Personal
protective equipment does not eliminate the risk
of accidents, however, it can reduce the effects of
an injury in the event of an accident. Ask your
dealer for help when choosing protective equipment.
WARNING!
!
HELMET
A helmet should be worn if
trees to be cleared are higher
than 2 metres.
EAR PROTECTION
Ear protection offering
sufficient dampening effect
should be used.
EYE PROTECTION
Blows from branches or
objects thrown by the
rotating cutting equipment
can damage the eyes.
GLOVES
Gloves should be worn when
necessary, e.g., when
assembling cutting
equipment.
BOOTS
Use anti-slip and stable
boots.
CLOTHING
Wear clothes made of a
strong fabric and avoid loose
clothing that can catch on
shrubs and branches.Always
wear heavy-duty long pants.
Do not wear jewellery, shorts,
sandals or go barefoot. Secure
hair so it is above shoulder
level.
FIRST AID KIT
A first aid kit should be
carried by operators of
clearing saws, brushcutters or
trimmers.
Remove your hearing protection as soon as
you stop the engine, so that you can hear
any noises or warning signals.
The machine‘s safety equipment
This section describes the machine‘s safety equipment, its
function and how checks and maintenance are carried out to
ensure that it operates correctly. (See the chapter “What is
what“ to locate where this equipment is positioned on your
machine.)
WARNING!
Never use a machine with defective safety
!
1. Throttle trigger
lock
The throttle trigger lock is
designed to prevent the
throttle from accidentally
being engaged. When the
trigger lock (A) is pressed
into the handle (= when you
hold the handle) the throttle
(B) is released. When the
grip on the handle is
released the throttle and the
throttle trigger lock return
to their original positions.
This takes place via two
independent return spring
systems. This means that the
throttle is automatically
locked in its “idling“
position.
2. Stop switch
The stop switch should be
used to stop the engine.
3. Cutting
attachment guard
This guard is intended to
prevent objects from being
thrown towards the
operator and to protect the
operator from
unintentionel contact with
the cutting attachment.
!
equipment. Follow the control,
maintenance and service instructions
described in this section.
A
B
"
WARNING!
Do not attach any blade to the unit without
proper installation of all required parts.
Failure to use the proper parts can cause
the blade to fly off and seriously injure the
operator and/or bystanders.
Under no circumstances may the cutting
equipment be used without an approved
guard fitted. See the chapter
data”
. If the wrong guard or a defective
guard is fitted this can cause serious
personal injury.
“Technical
4 – English
SAFETY INSTRUCTIONS
4. Vibration
damping system
Your machine is equipped
with a vibration damping
system, which is designed to
give as vibration-free and
comfortable use as possible.
The use of blunt or
incorrect cutting equipment
(the wrong type or
incorrectly sharpened, see
the section “Sharpening the
blade“ ) increases the level of
vibration.
The machine’s vibration
damping system reduces the
transfer of vibrations
between the engine unit/
cutting equipment and the
machine’s handle unit.
WARNING!
Over exposure to vibrations can result in
!
blood-vessel or nerve injury to persons
suffering with blood circulation problems.
Seek medical attention if you experience
physical symptoms that can be related to
over exposure to vibrations. Examples of
such symptoms are “numbness“, lack of
feeling, “tickling“, “pricking“, “pain“, lack of
or a reduction in normal strength, changes
in the colour of the skin or its surfaces.
These symptoms normally appear in the
fingers, hands or wrists.
6. Muffler
The muffler is designed to
give the lowest possible noise
level and to direct the
engine‘s exhaust fumes away
from the operator. Muffler
fitted with catalytic converter
is also designed to reduce
harmful exhaust components.
In countries that have a
warm and dry climate the
risk of fire is obvious. We
have therefore fitted certain
mufflers with a spark arrest
screen. Make sure that your
muffler is fitted with this
kind of screen.
It is extremely important that the instructions for checking,
maintaining and servicing the muffler are followed. (see the
section “Control, maintenance and service of the machine‘s safety
equipment“).
WARNING!
!
!
7. Cutting
equipment
The exhaust fumes from the engine are hot
and may contain sparks which can start a
fire. Never start the machine indoors or
near combustible material!
WARNING!
Bear in mind that exhaust fumes:
• contain carbon monoxide, which can
cause carbon monoxide poisoning.
Therefore never start or run the machine
indoors.
• are hot and can contain sparks that can
cause fires. Never start the machine
indoors or close to inflammable material.
1
5. Quick-release
There is an easily accessible,
quick-release catch fitted to
the chest as a safety
precaution in the event of a
fire in the engine or for any
other situation that requires
you to free yourself from the
machine and harness. See the
section “Adjusting the harness
and clearing saw“.
1) Grass blades are
intended for brush cutting.
2) The trimmer head is
intended for trimming grass.
8. Locking nut
A locking nut is used to
secure some types of cutting
equipment on the output
shaft.
2
English – 5
SAFETY INSTRUCTIONS
Control, maintenance and service of
the machine‘s safety equipment
IMPORTANT INFORMATION
• All service and repairs to the machine require
special training.
• This applies especially to the machine‘s safety
equipment. If the machine does not meet any of
the controls listed below you should contact your
service workshop.
• The purchase of one of our products guarantees
that professional repair and servicing will be
carried out on it. If the point of purchase is not
one of our servicing dealers, please ask for
details of the closest service workshop.
1. Throttle trigger
lock
• Check that the throttle is
locked in the “idling
position“ when the
throttle trigger lock is in
its original position.
• Press in the throttle
trigger lock and make sure
it returns to its original
position when released.
3. Cutting
attachment guard
• Check that the guard is
undamaged and not
cracked.
• Replace the guard if it
has been exposed to
impact or is cracked.
• Always use the prescribed
blade an guard
combination, see chapter
"Technical data".
4. Vibration
damping system
• Check the vibration
damping element
regularly for material
cracks and distortion.
• Check that the vibration
damping element is
undamaged and securely
attached.
• Ensure that the throttle
and throttle trigger lock
move easily and that their
return spring systems
function.
• See section "Start". Start
the machine and apply
full throttle. Release the
throttle and check that the
cutting equipment stops
and remains at a standstill.
If the cutting equipment
rotates with the throttle in
the idling position then
the carburettor‘s idling
setting must be checked.
See chapter
“Maintenance“.
2. Stop switch
• Start the engine and make
sure that the engine stops
when the stop switch is
moved to the stop
position.
#
5. Muffler
1.Never use a machine that
has a defective muffler.
2.Check regularly that the
muffler is secure.
3.If your muffler is fitted
with a spark arrest screen
then it should be cleaned
regularly. A blocked
screen leads to the engine
overheating with serious
damage as a result. Never
use a muffler with a
defective spark arrest
screen.
6 – English
SAFETY INSTRUCTIONS
6. Cutting equipment
This section describes how through correct maintenance and
through using the right type of cutting equipment you can:
• Reduce the machine‘s tendency to kickback
• Obtain maximum cutting capacity.
• Increase the service life of the cutting equipment.
The three basic rules:
1)Only use the cutting
and guard equipment
we recommend! See
chapter “Technical
data“.
2)Keep the blade‘s teeth
well and correctly
sharpened! Follow our
instructions and use the
recommended filing
gauge. An incorrectly
sharpened or damaged
blade increases the risk
of an accident.
7. Quick-release
• Check that the harness
straps are correctly
positioned. When the
harness and machine are
adjusted, check the harness‘
safety release catch to
ensure it works correctly.
8. Locking nut
• Protect your hand from
injury when assembling,
use the blade guard as
protection when tightening
with a socket spanner.
Tighten the nut by turning
against the direction of
rotation. Loosen the nut by
turning in the direction of
rotation. (NOTE! the nut
has a left-hand thread).
3)Check the cutting
equipment with regard
to damage and crack
formation. Damaged
cutting equipment
should always be
replaced.
• Tighten the nut using a
socket spanner, 35 - 50
Nm (3.5 - 5 kpm).
NOTE!
The locking nut‘s nylon lock
must not be so worn that it
can be turned by hand. The
lock shall hold at least 1.5
Nm. The nut should be
replaced after it has been put
on approx. 10 times.
WARNING!
Never use a machine with defective safety
!
equipment. The safety equipment should
be maintained as described in this section.
If your machine does not meet any of
these controls you should contact your
service workshop.
English – 7
SAFETY INSTRUCTIONS
Cutting equipment
IMPORTANT INFORMATION
The section describes how through correct
maintenance and through using the right type of
cutting equipment you can reduce the machine‘s
tendency to kickback, obtain maximum clearing
capacity and increase the service life of the cutting
equipment.
• Only use the cutting and guard equipment we
recommend! See chapter
•
Refer to the instructions for the cutting equipment
for the correct winding of cord and for the
selection of the right cord diameter.
• Keep the blade’s teeth well and correctly
sharpened! Follow our recommendations. Also
refer to the instructions on the blade packaging.
WARNING!
!
Incorrect cutting equipment or an
incorrectly sharpened blade increases
the risk of kickback.
“Technical data“.
Trimmer head
• Only use a trimmer head
and trimmer cord that is
recommended. 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
cutting equipment we
recommend! See chapter
“Technical data“.
• Generally smaller machines require a small trimmer head
and vice versa. This is because when clearing using a cord
the engine must throw out the cord radially from the
trimmer head and also meet resistance from 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.
Filing the grass
blade
• See the cutting
equipment’s packaging for
correct filing instructions.
• The blades are sharpened
using a single cut flat file.
• Sharpen all edges equally
to maintain the balance of
the blade.
• Make sure the knife positioned 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 few days. This will make the line tougher and it will keep
longer.
IMPORTANT INFORMATION
Always ensure the trimmer cord is wound tightly
and evenly around the drum, otherwise harmful
vibrations will occur.
WARNING!
!
Always stop the engine before starting
work on any part of the cutting equipment.
This continues to rotate even after the
throttle has been released. Ensure that the
cutting equipment has stopped completely
and remove the cable from the spark plug
before you start to work on it.
8 – English
SAFETY INSTRUCTIONS
General safety instructions
IMPORTANT INFORMATION
• The machine is only designed for trimming grass
and brush cutting.
• The only accessories to be used with the engine
unit as a drive source are the cutting units we
recommend in the chapter
• Never use the machine if you are tired, if you have
consumed alcohol, or if you are taking medicines
that can affect your sight, your judgement or the
control of your body.
• Use personal protective equipment. See the section
“Personal protective equipment“.
• Never use a machine that has been modified so that
it no longer corresponds with the original design.
• Never use a machine that is faulty. Follow the
maintenance, control and service instructions in
this Operator‘s Manual. Some maintenance and
service actions should be carried out by trained and
qualified specialists. See the chapter
“Maintenance“
• All covers and guards must be fitted before starting
the machine. Check that the spark plug cap and HT
lead are not damaged, otherwise you could get an
electric shock.
• The machine operator shall ensure, while working,
that no persons or animals come closer than 15
metres. When several operators are working in the
same area the safety distance should be at least
double tree length, however, at least 15 metres.
!
.
WARNING!
Faulty cutting equipment or an incorrectly
sharpened blade increases the risk of
accidents.
“Technical data“
.
Fuel safety
• Always use a fuel container
with an anti-spill valve.
• Never fill the machine
while the engine is
running. Always stop the
engine and let it cool for a
few minutes before
refuelling.
• Provide good ventilation
when filling or mixing fuel
(petrol and 2-stroke oil).
• Move the machine at least
3 m from the filling
position before starting.
• Never start the machine:
a)If you have spilt fuel on it.
Wipe up all spillage.
b)If you have spilt fuel on
yourself or your clothes.
Change your clothes.
c)If there is a fuel leak.
Make regular checks for
leakage from the fuel cap
and the fuel supply pipes.
Min 3 m
(10ft)
Start
WARNING!
!
• The complete clutch cover
with shaft must be fitted
before the machine is
started, otherwise the clutch
can become loose and cause
personal injury.
• Never start the machine
indoors. Bear in mind the
dangers of inhaling the
engine‘s exhaust fumes.
• Observe your surroundings
and make sure that there is
no risk of people or animals
coming into contact with
the cutting equipment.
• Place the machine on the ground, ensure the cutting
equipment runs free of twigs and stones. Push the machine
body towards the ground using your left hand. (NOTE! Not
with your foot). Grip the starter handle with your right hand
and pull the starter cord.
When the engine is started with the choke
in either the choke or start throttle positions
the cutting equipment starts to rotate
immediately.
Transport and storage
• Store and transport the machine and fuel so that any leakage
or fumes do not risk coming into contact with sparks or
naked flames. For example, electric machines, electric
motors, electrical switches/power switches, heaters or the
like.
• When storing and transporting fuel approved containers
intended for this purpose must be used.
• When storing the machine for long periods the fuel tank
must be emptied. Contact your local petrol station to find
out how to dispose of excess fuel.
• Always keep the transport guard attached when transporting
and storing the machine.
WARNING!
!
Exercise great care when handling fuel.
Bear in mind the risk of fire, explosions and
inhaling fumes.
English – 9
SAFETY INSTRUCTIONS
General working instructions
IMPORTANT INFORMATION
• This section takes up the basic safety
precautions for working with the clearing saw
and trimmer.
• 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.
• Before starting you must understand the
difference between forestry clearing, brush
cutting and grass trimming.
Basic safety precautions
1.Observe your surroundings:
• To ensure that people, animals or other things cannot affect
your control of the machine.
• To ensure that the above mentioned do not come into
contact with the cutting equipment or objects that can be
thrown by the cutting equipment.
Adjusting the harness and clearing saw
WARNING!
When working with the clearing saw the
!
Quick release
On the front is an easily
accessible, quick release
catch:
• Pull out the red strap.
• The hip strap and one
shoulder strap will be
automatically released at
the same time and the
harness and the engine
unit will slide to the
ground.
Use this if the engine should
catch fire or in any other
emergency situation when
you quickly need to take off
the harness and machine.
harness should always be worn. If this is
not done, you cannot control the clearing
saw safely and this can result in injury to
yourself or someone else. Never use a
harness with a defective quick release
catch.
• NOTE! Never use a machine without the possibility of
calling for help in the event of an accident.
2.Avoid usage in
unfavourable weather
conditions. For example,
thick fog, heavy rain,
strong winds or extreme
cold, etc. To work in bad
weather conditions is
tiring and can create
dangerous situations, for
example, slippery surfaces.
3.Make sure you can walk
and stand safely. Look out
for any obstacles with
unexpected movement
(roots, stones, branches,
pits, ditches, etc.). Take
great care when working
on sloping ground.
4.The engine should be switched off before moving. When
moving over longer distances and transporting the transport
guard should be used.
Equal load on
shoulders
A well matched saw and
harness make work much
easier. Adjust the harness to
give the best working stance.
Adjust the side straps so that
the weight is equally divided
across the shoulders.
Off-loading strap
The off-loading strap is
intended to off-load the
weight from the shaft.
Adjust the length of the
strap so that the cutting
equipment balances just
above the ground.
5.Never put the machine down with the engine running
unless you have good sight of it.
10 – English
SAFETY INSTRUCTIONS
Basic clearing techniques
• Always carry out clearing and trimming at full throttle.
• Always drop to idling speed after each working operation.
Longer periods running at full throttle without loading the
engine (that is without resistance, which the engine feels
from the cutting equipment when trimming) can lead to
serious engine damage.
Designations
• Brush cutting is a general
term for clearing grass.
Grass blades are used for
this purpose.
• Grass trimming is a
general term for light
clearing, e.g. around
edges or around trees. A
trimmer head or plastic
blade is used.
Brush cutting using a grass blade
• A blade is used for all
types of high or thick
grass.
• The grass is cut down
with a sideways, swinging
movement, where the
movement from right-toleft is the clearing stroke
and the movement from
left-to-right is the return
stroke. Let the blade work
on the left-hand side
(between 8 and 12
o’clock).
• If the blade is angled to
the left when clearing the
grass will collect in a line,
which makes collection
easier, e.g. when raking.
• Try to work rhythmically. Stand firmly with your feet apart.
Move forward after the return stroke and stand firmly again.
• Let the support cup rest lightly against the ground. It is used
to protect the blade from hitting the ground.
!
WARNING!
Sometimes grass can collect in the spray
guard and cutting head. Always stop the
engine when cleaning.
• Reduce the risk of material wrapping around the blade by
following these instructions:
a) Always work at full throttle.
b) Avoid the previously cut material during the return
stroke.
• Stop the engine, loosen the harness and place the machine
on the ground before you start to collect the cut material.
WARNING!
!
!
Neither the user of the tool or anyone else
may attempt to remove the cut material
while the engine is running or with the blade
rotating as this can result in serious injury.
Stop the engine and blade before you
remove material that has wound around the
blade as otherwise there is a risk of injury.
The bevel gear unit can get hot during use
and may remain so for a while afterwards.
There is a risk of slight burns if you touch it.
WARNING!
Warning for thrown objects. Always wear
protective glasses. Never lean over the
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.
English – 11
SAFETY INSTRUCTIONS
Grass trimming using the trimmer head
and plastic blades
• Hold the trimmer head
just above the ground at
an angle. It is the end of
the cord that carries out
the work. Let the cord
work at its own pace. Do
not press the cord into the
area to be cut.
• The cord can easily
remove grass and weeds
up against walls, fences,
trees and borders,
however, it can also
damage sensitive bark on
trees and bushes and
damage fence posts.
• Reduce the risk of
damaging plants by
shortening the cord to 1012 cm and reducing the
engine speed.
Clearing
• The clearing technique
removes all unwanted
vegetation. Keep the
trimmer head just above
the ground and tilt it. Let
the end of the cord strike
the ground around trees,
posts, statues and the like.
NOTE! This technique
increases the wear on the
cord.
Trimming
• The trimmer is ideal to cut
grass that is difficult to
reach using a normal lawn
mower. Keep the cord
parallel to the ground when
cutting. Avoid pressing the
trimmer head against the
ground as this can ruin the
lawn and damage the tool.
• Do not allow the trimmer
head to constantly come
into contact with the
ground during normal
cutting procedures.
Constant contact can cause
damage and wear to the
trimmer head.
Sweeping
• The rotating cord‘s fanning
effect can be used for quick
and easy cleaning. Hold the
cord parallel to and above
the area to be swept and
move the trimmer from
side to side.
• When cutting and
sweeping you should use
full throttle to obtain the
best results.
• 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.
12 – English
!
WARNING!
Warning for thrown objects. Always wear
protective glasses. Never lean over the
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.
WHAT IS WHAT?
28
34
15
31
14
11
13
29
33
8
27
17 23
7
123
24
5
204
9
12
30
What is what on the grass trimmer
and the brushcutter?
1. Blade
2. Grease filler cap
3. Angle gear
4. Blade guard
5. Shaft
7. Throttle
8. Stop switch
9. Throttle trigger lock
11. Cylinder cover
12. Starter handle
13. Fuel tank
14. Choke
15. Air filter cover
17. Handlebar adjustment
18. Locking nut
32
19. Support flange
20. Support cup
21. Drive disc
23. J-handle
24. Shaft coupling
25. Socket spanner
26. Operator‘s Manual
27. Transport guard
28. Allen key
29. Carburettor screwdriver
30. Locking pin
31. Harness
32. Drive axle grease
33. Flexible strap
34. Air purge
English – 13
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