Husqvarna 535RX, 535RXT User Manual
Oper ator’s manual
535RX, 535RXT
Please r ead the operator’s manual carefully and make sure you understand the instructions
before using the machine.
EEEEnnnngggglllliiiisssshh
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Symbols
ARNING! Clearing saws,
brushcutters and trimmers can be
dangerous! 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.
Always wear:
• A protective helmet where there
is a risk of falling objects
• Approved hearing protection
• Approved eye protection
Max. speed of output shaft, rpm
KEY T O SYMBOLS
Only use non-metallic, flexible
cutting attachments, i.e. trimmer
heads with trimmer cord.
Starting instructions
1.
2.
3
3.
2
1
4.
5.
Watch out for thrown objects and
ricochets.
The operator of the machine must
ensure, while working, that no
persons or animals come closer than
15 metres.
Machines fitted with saw blades or
grass blades can be thrown violently
to the side when the blade comes
into contact with a fixed object. The
blade is capable of amputating an
arm or leg. Always keep people and
animals at least 15 metres from the machine.
Arrows which show limits for handle
positioning.
Always wear approved protective
gloves.
Wear sturdy, non-slip boots.
Other symbols/decals on the
machine refer to special certification
requirements for certain markets.
The engine is s witched off by moving
the stop switch to the stop position.
15 m
m
5
1
50FT
50FT
CAUTION! The stop switch
automatically returns to the start
position. In order to prevent
unintentional starting, the spark plug cap must be
removed from the spark plug when assembling, checking
and/or performing maintenance.
Always wear approved protective
gloves.
Regular cleaning is required.
Visual check.
Approved eye protection must always
be used.
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CONTENTS
Contents
KEY TO SYMBOLS
Symbols ................................................................ 2
CONTENTS
Contents ............................................................... 3
Note the following before starting: ........................ 3
INTR ODUCTION
Dear customer! ..................................................... 4
WHA T IS WHAT?
What is what on the br ush cutter? ........................ 5
GENERAL SAFETY PRECA UTIONS
Impor tant .............................................................. 6
Personal protective equipment ............................. 6
Machine ′ s safety equipment ................................. 7
Cutting equipment ................................................ 10
ASSEMBL Y
Assemb ling the handlebar and throttle ................. 13
Assembling the cutting equipment ....................... 13
Fitting the guard extension ................................... 13
Fitting a blade guard, grass blade and grass cutter 14
Fitting the blade guard and saw blade .................. 14
Fitting other guards and cutting attachments ....... 15
Adjusting the harness and brush cutter ................ 16
Standard harness ................................................. 16
Triobalance harness ............................................. 16
FUEL HANDLING
Fuel saf ety ............................................................ 18
Fuel ...................................................................... 18
Fueling .................................................................. 19
ARTING AND STOPPING
Chec k before starting ........................................... 20
Starting and stopping ........................................... 20
ORKING TECHNIQUES
Gener al working instructions ................................ 22
MAINTENANCE
Carb uretor ............................................................ 27
Muffler .................................................................. 28
Cooling system ..................................................... 28
Bevel gear ............................................................ 28
Air filter ................................................................. 29
Spark plug ............................................................ 29
Maintenance schedule ......................................... 30
TECHNICAL D ATA
echnical data ...................................................... 31
FEDERAL AND CALIFORNIA EMISSIONS
CONTROL WARRANTY STATEMENT
OUR WARRANTY RIGHTS AND OBLIGATIONS 33
Note the f ollowing before starting:
Please read the oper ator’s manual carefully.
Maintenance, replacement, or repair of the emission
control devices and system may be performed by any
nonroad engine repair establishment or individual.
ARNING! Long-term exposure to noise
can result in permanent hearing
impairment. So always use approved
hearing protection.
ARNING! 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.
Your warranty may not cover damage or
liability caused by the use of nonauthorized accessories or replacement
parts.
ARNING! A clearing saw, brushcutter
or trimmer can be dangerous if used
incorrectly or carelessly, and can cause
serious or fatal injury to the operator or
others. It is extremely important that you
read and understand the contents of this
operator’s manual.
The Emissions Compliance Period referred to on the
Emission Compliance label indicates the number of
operating hours for which the engine has been shown to
meet Federal and Californian emissions requirements.
The engine exhaust from this product
contains chemical known to the State
of California to cause cancer, birth
defects or other reproductive harm.
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INTR ODUCTION
Dear customer!
Cong ratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689,
when the Swedish King Karl XI ordered the construction of a factory on the banks of the Huskvarna River, for production
of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant. During over 300 years of continuous operation, the Husqvarna factory has produced a lot of different
products, from wood stoves to modern kitchen appliances, sewing machines, bicycles, motorcycles etc. In 1956, the first
motor driven lawn mowers appeared, followed by chain saws in 1959, and it is within this area Husqvarna is working
today.
Today Husqvarna is one of the leading manufacturers in the world of forest and garden products, with quality as our
highest priority. We develop, manufacture and market high quality motor driven products for forestry and gardening as
well as for building and construction industry.
Your purchase gives you access to professional help with repairs and service whenever this may be necessary. If the
retailer who sells your machine is not one of our authorized dealers, ask for the address of your nearest servicing dealer.
It is our wish that you will be satisfied with your product and that it will be your companion for a long time. Think of this
operator
s manual as a valuable document. By following its ′ content (using, service, maintenance etc) the life span and
the second-hand value of the machine can be extended. If you ever lend or sell this machine, make sure that the
borrower or buyer gets the operator
Thank you for using a Husqvarna product.
Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and
appearance of products without prior notice.
For customer assistance, contact us at our website: www.usa.husqvarna.com
s manual, so they will also know how to properly maintain and use it.
– English
WHA T IS WHA T?
1
8
3
7
1
2
4
5
33
18
19
20
22
21
4
32
What is what on the brush cutter?
Trimmer head
2 Grease filler cap, bevel gear
3 Bevel gear
4 Cutting attachment guard
5 Shaft
6 Handlebar
7 Throttle control
8 Stop switch
9 Throttle lockout
10 Suspension
11 Cylinder cover
12 Starter handle
13 Fuel tank
14 Choke control
15 Air purge
16 Air filter cover
17 Handle adjustment
27
30
535RXT
6
21
25
23
17
533RX
9
17
31
10
1
33
4
18 Locking nut
19 Support flange
20 Support cup
21 Drive disc
22 Blade
23 Socket spanner
24 Operator’s manual
25 Transport guard
26 Allen key
27 Locking pin
28 Harness
29 Spark plug cap and spark plug
30 Start throttle button
31 Adjusting screw for throttle cable
32 Spark plug spanner
33 Guard extension
26
29
13
28
14
11
16
12
15
24
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GENERAL SAFETY PRECA UTIONS
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Impor tant
IMPORTANT!
The machine is only designed for trimming grass, grass
clearing and/or forestry clearing.
The only accessories you can operate with this engine
unit are the cutting attachments we recommend in the
chapter on Technical data.
Never use the machine if you are tired, if you have drunk
alcohol, or if you are taking medication that could affect
your vision, your judgement or your co-ordination.
Wear personal protective equipment. See instructions
under the heading ”Personal protective equipment”.
Never use a machine that has been modified in any way
from its original specification.
Never use a machine that is faulty. Carry out the checks,
maintenance and service instructions described in this
manual. Some maintenance and service measures
must be carried out by trained and qualified specialists.
See instructions under the heading Maintenance.
All covers, guards and handles must be fitted before
starting. Ensure that the spark plug cap and ignition
lead are undamaged to avoid the risk of electric shock.
The machine operator must ensure that no people or
animals come closer than 15 metres while working.
When several operators are working in the same area
the safety distance should be at least twice the tree
height and no less than 15 metres.
Do an overall inspection of the machine before use, see
maintenance schedule.
ARNING! This machine produces an
electromagnetic field during operation.
!
This field may under some
circumstances interfere with active or
passive medical implants. To reduce the
risk of serious or fatal injury, we
recommend persons with medical
implants to consult their physician and
the medical implant manufacturer before
operating this machine.
ARNING! Never allow children to use or
be in the vicinity of the machine. As the
machine is equipped with a springloaded stop switch and can be started by
low speed and force on the starter
handle, even small children under some
circumstances can produce the force
necessary to start the machine. This can
mean a risk of serious personal injury.
Therefore remove the spark plug cap
when the machine is not under close
supervision.
Personal protective equipment
IMPOR TANT!
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.
You must use approved personal protective equipment
whenever you use the machine. Personal protective
equipment cannot eliminate the risk of injury but it will
reduce the degree of injury if an accident does happen.
Ask your dealer for help in choosing the right equipment.
ARNING! Listen out for warning signals
or shouts when you are wearing hearing
protection. Always remove your hearing
protection as soon as the engine stops.
HELMET
A helmet should be w orn if the trees being cleared are
taller than 2 m.
HEARING PROTECTION
Wear hearing protection that provides adequate noise
reduction.
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– English
ARNING! Running an engine in a
confined or badly ventilated area can
result in death due to asphyxiation or
carbon monoxide poisoning.
EYE PROTECTION
Always wear approved eye protection. If you use a visor
then you must also wear approved protective goggles.
Approved protective goggles must comply with standard
ANSI Z87.1 in the USA or EN 166 in EU countries.
GENERAL SAFETY PRECA UTIONS
GLO VES
Gloves should be worn when necessary, e.g., when fitting
cutting attachments.
BOOTS
Wear boots with steel toe-caps and non-slip sole.
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Thr ottle lockout
The throttle loc kout is designed to prevent accidental
operation of the throttle control. When you press the lock
(A) (i.e. when you grasp the handle) it releases the throttle
control (B). When you release the handle the throttle
control and the throttle lockout both move back to their
original positions. This movement is controlled by two
independent return springs. This arrangement means that
the throttle control is automatically locked at the idle
setting.
A
B
CLOTHING
Wear clothes made of a strong fabric and avoid loose
clothing that can catch on twigs and branches. Always
wear heavy, long pants. Do not wear jewellery, shorts
sandals or go barefoot. Secure hair so it is above shoulder
level.
FIRST AID KIT
Always have a first aid kit nearby.
Mac hine ′ s safety equipment
This section descr ibes the machine ′ s safety equipment,
its purpose, and how checks and maintenance should be
carried out to ensure that it operates correctly. See the
”What is what?” section to locate where this equipment is
positioned on your machine.
IMPORTANT! All servicing and repair work on the
machine requires special training. This is especially true
of the machine
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.
!
s safety equipment. If your machine fails
ARNING! Never use a machine with
faulty safety equipment. The machine’s
safety equipment must be checked and
maintained as described in this section.
If your machine fails any of these checks
contact your service agent to get it
repaired.
Make sure the throttle control is locked at the idle setting
when the throttle lockout is released.
Press the throttle lockout and make sure it returns to its
original position when you release it.
Check that the throttle control and throttle lockout move
freely and that the return springs work properly.
See instructions under the heading Start. Start the
machine and apply full throttle. Release the throttle and
check that the cutting attachment stops and remains at a
standstill. If the cutting attachment rotates with the throttle
in the idle position then the carburettor idle setting must
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GENERAL SAFETY PRECA UTIONS
be chec ked. See instructions under the heading
Maintenance.
Stop s witch
Use the stop s witch to switch off the engine.
Start the engine and make sure the engine stops when
you move the stop switch to the stop setting.
Cutting attac hment guard
Vibration damping system
Your machine is equipped with a vibration damping
system that is designed to reduce vibration and make
operation easier.
Using incorrectly wound cord or a blunt or incorrect
cutting attachment (wrong type or incorrectly filed, see
instructions under the heading Filing the blade) increases
the level of vibration.
The machine′s vibration damping system reduces the
transfer of vibration between the engine unit/cutting
equipment and the machine
′s handle unit.
8
This guard is intended to pre vent loose objects from being
thrown towards the operator. The guard also protects the
operator from accidental contact with the cutting
attachment.
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 recommended guard for the cutting
attachment you are using. See chapter on Technical data.
WARNING! Never use a cutting
attachment without an approved guard.
!
See the chapter on Technical data. If an
incorrect or faulty guard is fitted this can
cause serious personal injury.
– English
Regularly check the vibration damping units for cracks or
deformation.
535RX, 535RXT
Check that the vibration damping element is undamaged
and securely attached.
GENERAL SAFETY PRECAUTIONS
WARNING! Overexposure to vibration
can lead to circulatory damage or nerve
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damage in people who have impaired
circulation. Contact your doctor if you
experience symptoms of overexposure
to vibration. Such symptoms include
numbness, loss of feeling, tingling,
pricking, pain, loss of strength, changes
in skin colour or condition. These
symptoms normally appear in the
fingers, hands or wrists. The risk
increases at low temperatures.
Quick release
There is an easily accessible, quick release fitted at the
front as a safety precaution in case the engine catches
fire, or in any other situation that requires you to free
yourself from the machine and harness. See instructions
under the heading Adjusting the harness and brush
cutter.
Certain harnesses also have a quick release fitted to the
support hook.
a spark arrestor screen. Check whether the muffler on
your machine is fitted with this kind of screen.
For mufflers it is very important that you follow the
instructions on checking, maintaining and servicing your
machine.
Never use a machine that has a faulty muffler.
Check that the harness straps are correctly positioned.
Once the harness and machine have been adjusted,
check that the harness quick release works correctly.
Muffler
The muffler is designed to keep noise levels to a minimum
and to direct exhaust fumes away from the user. A muffler
fitted with a catalytic converter is also designed to reduce
harmful exhaust gases.
In countries that have a warm and dry climate there is a
significant risk of fire. We therefore fit certain mufflers with
Regularly check that the muffler is securely attached to
the machine.
If the muffler on your machine is fitted with a spark
arrestor screen this must be cleaned regularly. A blocked
screen will cause the engine to overheat and may lead to
serious damage.
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GENERAL SAFETY PRECAUTIONS
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!
WARNING! Mufflers fitted with catalytic
converters get very hot during use and
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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! Bear in mind that:
!
The exhaust fumes from the engine are
hot and may contain sparks which can
start a fire. Never start the machine
indoors or near combustible material!
Locking nut
A locking nut is used to secure some types of cutting
attachment.
Cutting equipment
This section describes how to choose and maintain your
cutting equipment in order to:
• Reduce the risk of blade thrust.
• Obtain maximum cutting performance.
• Extend the life of cutting equipment.
IMPORTANT!
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
Refer to the instructions for the cutting attachment to
check the correct way to load the cord and the correct
cord diameter.
Keep the teeth of the blade correctly sharpened! Follow
our recommendations. Also refer to the instructions on
the blade packaging.
Maintain the correct blade setting! Follow our
instructions and use the recommended file gauge.
WARNING! Always stop the engine
before doing any work on the cutting
attachment. This continues to rotate even
after the throttle has been released.
Ensure that the cutting attachment has
stopped completely and disconnect the
HT lead from the spark plug before you
start to work on it.
WARNING! Using an incorrect cutting
attachment or an incorrectly sharpened
blade increases the risk of blade thrust.
When fitting, tighten the nut in the opposite direction to the
direction of rotation of the cutting attachment. To remove
it, undo the nut in the same direction as the cutting
attachment rotates. (CAUTION! The nut has a left-hand
thread.) Tighten the nut using the socket spanner.
The nylon lining inside the locking nut must not be so worn
that you can turn it by hand. The lining should offer a
resistance of at least 1.5 Nm. The nut should be replaced
after it has been put on approx. 10 times.
10 – English
Cutting equipment
Saw blades are intended for cutting fibrous types of wood.
Grass blades and grass cutters are intended for cutting
coarse grass.
A trimmer head is intended for trimming grass.
GENERAL SAFETY PRECAUTIONS
!
General rules
Only use cutting attachments with the guards we
recommend! See the chapter on Technical data.
Keep the teeth of the blade correctly sharpened! Follow
our instructions and use the recommended file gauge. An
incorrectly sharpened or damaged blade increases the
risk of accidents.
Keep the correct setting on the saw blade! Follow our
instructions and use the recommended setting tool. An
incorrectly set saw blade increases the risk of jamming
and blade thrust, and damage to the saw blade.
• Sharpen all edges equally to maintain the balance of
the blade.
WARNING! Always discard a blade that is
bent, twisted, cracked, broken or
damaged in any other way. Never attempt
to straighten a twisted blade so that it
can be reused. Only use original blades
of the specified type.
Sharpening the saw blade
• See the cutting attachment packaging for correct
sharpening instructions.
A correctly sharpened blade is essential for working
efficiently and to avoid unnecessary wear to the blade and
brush cutter.
Check the cutting attachment for damage or cracks. A
damaged cutting attachment should always be replaced.
Sharpening grass cutters and grass blades
• See the cutting attachment packaging for correct
sharpening instructions. Sharpen blades and cutters
using a single-cut flat file.
• Make sure that the blade is well supported when you
file it. Use a 5.5 mm round file with a file holder.
• The filing angle is 15°. File alternate teeth to the right
and those in between to the left. If the blade has been
heavily pitted by stones it may be necessary to dress
the top edges of the teeth with a flat file, in exceptional
cases. If so, this should be done before filing with a
English – 11
GENERAL SAFETY PRECAUTIONS
round file. The top edges must be filed down by the
same amount for all the teeth.
• Adjust the blade setting. This should be 1 mm.
Trimmer head
IMPORTANT!
Always ensure the trimmer cord is wound tightly and
evenly around the drum, otherwise the machine will
generate harmful vibration.
• Only use the recommended trimmer heads and
trimmer cords. These have been tested by the
manufacturer to suit a particular engine size. This is
especially important when a fully automatic trimmer
head is used. Only use the recommended cutting
attachment. See the chapter on Technical data.
• Smaller machines generally require small trimmer
heads and vice versa. This is because when clearing
using a cord the engine must throw out the cord
radially from the trimmer head and overcome the
resistance of the grass being cleared.
• The length of the cord is also important. A longer cord
requires greater engine power than a shorter cord of
the same diameter.
• Make sure that the cutter on the trimmer guard is
intact. This is used to cut the cord to the correct length.
• To increase the life of the cord it can be soaked in
water for a couple of days. This will make the line
tougher so that it lasts longer.
12 – English
ASSEMBLY
!
!
Assembling the handlebar and throttle
• Remove the screw at the rear of the throttle handle.
• Slide the throttle handle onto the right side of the
handlebar, (see diagram).
• Align the screw hole in the throttle handle with the hole
in the handlebar.
• Refit the screw in the hole in the rear of the throttle
handle.
• Screw the screw through the handle and handlebar.
Tighten it.
RXT
RX
Assembling the cutting equipment
WARNING!
When fitting the cutting attachment it is
extremely important that the raised
section on the drive disc/support flange
engages correctly in the centre hole of
the cutting attachment. If the cutting
attachment is fitted incorrectly it can
result in serious and/or fatal personal
injury.
WARNING! Never use a cutting
attachment without an approved guard.
See the chapter on Technical data. If an
incorrect or faulty guard is fitted this can
cause serious personal injury.
IMPORTANT! If a saw blade or grass blade are to be
used the machine must be equipped with the correct
handlebar, blade guard and harness.
Fitting the guard extension
• Fit the mounting components as shown.
• Loosely tighten the four screws. (R)
• Put on the harness and hang the machine from the
support hook. Now make a final adjustment so that
the machine is in a comfortable working position when
it hangs from the harness.
• Tighten the knob.
CAUTION! The guard extension shall always be fitted
when using the trimmer head/plastic blades and
combination guard. The guard extension shall always be
removed when using the grass blade and combination
guard.
Enter the guard extension guide in the slot of the
combination guard. Then click the guard extension into
position on the guard with the four quick-fasteners.
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ASSEMBLY
The guard extension is removed easily using the spark
plug spanner, see illustration.
Fitting a blade guard, grass blade and grass cutter
G
F
E
D
the spanner in the opposite direction to the direction
of rotation (Caution! left-hand thread).
Fitting the blade guard and saw blade
A
B
C
A
• Hook the blade guard/combination guard (A) onto the
fitting on the shaft and secure with the bolt.
CAUTION! Ensure that the guard extension is
removed.
Use the recommended blade guard. See the
Technical data section.
• Fit the drive disc (B) on the output shaft.
• Turn the blade shaft until one of the holes in the drive
disc aligns with the corresponding hole in the gear
housing.
• Insert the locking pin (C) in the hole to lock the shaft.
• Place the blade (D), support cup (E) and support
flange (F) on the output shaft.
• Fit the nut (G). The nut must be tightened to a torque
of 35-50 Nm (3.5-5 kpm). Use the socket spanner in
the tool kit. Hold the shaft of the spanner as close to
the blade guard as possible. To tighten the nut, turn
J
K
H
L
I
A
• Remove the mounting plate (H). Fit the adapter (I) and
bracket (J) with the two screws (K) as shown. Fit the
blade guard (A) to the adapter using the 4 screws (L)
as shown.
CAUTION! Use the recommended blade guard. See
the Technical data section.
G
F
D
B
C
• Fit the drive disc (B) on the output shaft.
• Turn the blade shaft until one of the holes in the drive
disc aligns with the corresponding hole in the gear
housing.
14 – English
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