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Operator’s manual
531RS, 541RS, 541RST
Please read the operatorís manual carefully and make sure you understand the instructions before using the machine.
English
H1159211-26,170911.fm Page 2 Monday, September 11, 2017 10:20 AM
Symbols
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.
Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
Always wear:
•Wear a protective helmet where there is a risk of falling objects
•Approved hearing protection
•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 15 meters.
Machines fitted with saw blades or grass blades can be thrown violently to the side when the blade comes into contact with a fixed object. This is called blade thrust. The blade is capable of amputating an arm or leg. Always keep people and animals at least 15 meters from the machine.
Arrows which show limits for handle positioning.
Ignition; choke: Set the choke control in the choke position. This should automatically set the stop switch to the start position.
Air purge.
2 – English
KEY TO SYMBOLS
10000
15 m |
15 m |
50FT |
50FT |
Always wear approved protective gloves.
Wear sturdy, non-slip boots.
Noise emission to the environment according to the European Community’s Directive. The machine’s emission is specified in the Technical data chapter and on the label.
Keep all parts of your body away from hot surfaces.
Other symbols/decals on the machine refer to special certification requirements for certain markets.
The type plate
showingproduction yyyywwxxxxx number. yyyy is
the production year, ww is the
productionweek and xxxxx is the serialnumber.
Switch off the engine by moving the stop switch to the STOP position before carrying out any checks or maintenance.
Always wear approved protective gloves.
Regular cleaning is required.
Visual check.
Approved eye protection must always be used.
H1159211-26,170911.fm Page 3 Monday, September 11, 2017 10:20 AM
CONTENTS
Contents |
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KEY TO SYMBOLS |
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Symbols ................................................................ |
2 |
CONTENTS |
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Contents ............................................................... |
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Note the following before starting: ........................ |
3 |
INTRODUCTION |
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Dear Customer, .................................................... |
4 |
WHAT IS WHAT? |
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What is what on the brush cutter? ........................ |
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GENERAL SAFETY PRECAUTIONS |
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Important .............................................................. |
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Personal protective equipment ............................. |
6 |
Machine′s safety equipment ................................. |
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Cutting equipment ................................................ |
10 |
ASSEMBLY |
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Fitting the main body ............................................ |
12 |
Assembling the handlebar and throttle ................. |
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Connecting throttle cable and stop switch wires ... |
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Fitting blades and trimmer heads ......................... |
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Fitting the transport guard .................................... |
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Adjusting the harness and brush cutter ................ |
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FUEL HANDLING |
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Fuel safety ............................................................ |
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Fuel ...................................................................... |
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Fueling .................................................................. |
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STARTING AND STOPPING |
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Check before starting ........................................... |
19 |
Starting and stopping ........................................... |
19 |
WORKING TECHNIQUES |
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General working instructions ................................ |
21 |
MAINTENANCE |
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Carburettor ........................................................... |
24 |
Cooling system ..................................................... |
24 |
Air filter ................................................................. |
24 |
Fuel filter ............................................................... |
25 |
Bevel gear ............................................................ |
25 |
Spark plug ............................................................ |
25 |
Trouble shooting ................................................... |
26 |
Maintenance schedule ......................................... |
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TECHNICAL DATA |
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Technical data ...................................................... |
28 |
Note the following before starting:
Please read the operator's manual carefully.
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WARNING! Long-term exposure to noise |
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can result in permanent hearing |
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impairment. So always use approved |
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hearing protection. |
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WARNING! Under no circumstances may |
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the design of the machine be modified |
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without the permission of the |
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manufacturer. Always use original |
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accessories. Non-authorized |
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modifications and/or accessories can |
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result in serious personal injury or the |
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death of the operator or others. |
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WARNING! A clearing saw, brushcutter |
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or trimmer can be dangerous if used |
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incorrectly or carelessly, and can cause |
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serious or fatal injury to the operator or |
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others. It is extremely important that you |
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read and understand the contents of this |
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operator’s manual. |
English – 3
H1159211-26,170911.fm Page 4 Monday, September 11, 2017 10:20 AM
INTRODUCTION
Dear Customer,
Congratulations on your choice to buy a Husqvarna product! Husqvarna is based on a tradition that dates back to 1689, when the Swedish King Karl XI ordered the construction of a factory on the banks of the Husqvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the waterpowered plant. During the more than 300 years in existence, 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 chainsaws 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. The business concept is to develop, manufacture and market motor-driven products for forestry and gardening, as well as for the building and construction industry. Husqvarna′s aim is also to be at the front edge for ergonomics, usability, security and environmental protection. That is the reason why we have developed many different features to add to our products within these areas.
We are convinced that you will appreciate with great satisfaction the quality and performance of our product for a very long time to come. The purchase of one of our products 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 (usage, service, maintenance, etc), the life span and the second-hand value of the machine can be extended. If you sell this machine, make sure that the operator′s manual is passed on to the buyer.
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.
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H1159211-26,170911.fm Page 5 Monday, September 11, 2017 10:20 AM
WHAT IS WHAT?
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What is what on the brush cutter?
1 |
Blade (Not all markets) |
19 |
Support flange |
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Grease filler cap, bevel gear |
20 |
Support cup |
3 |
Bevel gear |
21 |
Drive disc |
4 |
Cutting attachment guard |
22 |
Handlebar clamp (RS) |
5 |
Shaft |
23 |
Operator’s manual |
6 |
Start throttle button |
24 |
Transport guard (Not all markets) |
7 |
Stop switch |
25 |
Socket spanner |
8 |
Throttle trigger |
26 |
Spanner |
9 |
Throttle trigger lockout |
27 |
Locking pin |
10 |
Suspension ring |
28 |
Harness |
11 |
Cylinder cover |
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Air purge |
12 |
Starter handle |
30 |
Protective sleeve |
13 |
Fuel tank |
31 |
Trimmer head (Not all markets) |
14 |
Choke control |
32 |
Allen key |
15 |
Air filter cover |
33 |
2-teeth blade (Not all markets) |
16 |
Handlebar (RS) |
34 |
Handlebar bracket (RST) |
17 |
Clutch cover |
35 |
Bracket (RST) |
18 |
Locking nut |
36 |
Handlebar (RST) |
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H1159211-26,170911.fm Page 6 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
Important
IMPORTANT!
The clearing saw or grass trimmer is only designed for trimming grass, grass clearing and/or forestry clearing.
National or local regulations may regulate the use. Comply to given regulations.
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 are ill, if you have consumed alcohol, or if you are taking other drugs or medication that can affect your vision, judgement or co-ordination.
Wear personal protective equipment. See instructions under the ”Personal protective equipment” heading.
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 safety 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 Maintenance heading.
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 meters 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 meters.
Carry out an overall inspection of the machine before use. See the maintenance schedule.
WARNING! 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.
WARNING! Running an engine in a ! confined or badly ventilated area can
result in death due to asphyxiation or carbon monoxide poisoning.
Personal protective equipment
IMPORTANT!
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.
! |
WARNING! Listen out for warning signals |
or shouts when you are wearing hearing |
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protection. Always remove your hearing |
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protection as soon as the engine stops. |
HELMET
A helmet should be worn if the trees being cleared are taller than 2 m.
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 the ANSI Z87.1 standard in the USA or EN 166 in EU countries.
GLOVES
Gloves should be worn when necessary, e.g. when fitting cutting attachments.
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H1159211-26,170911.fm Page 7 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
BOOTS
Wear boots with steel toe-caps and non-slip sole.
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.
Machine′s safety equipment
This section describes the machine′s safety equipment, its purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. See the ”What is what?” section to locate where this equipment is positioned on your machine.
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 service workshop.
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.
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WARNING! Never use a machine with |
faulty safety equipment.The machine's |
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safety equipment must be checked and |
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maintained as described in this section. |
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If your machine fails any of these checks |
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contact your service agent to get it |
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repaired. |
Throttle trigger lockout
The throttle lockout is designed to prevent accidental operation of the throttle control. When you press the lock
(A) (i.e. when you grasp the handle) it releases the throttle control (B). When you release the handle the throttle
control and the throttle lockout both move back to their original positions. This movement is controlled by two independent return springs.This arrangement means that the throttle control is automatically locked at the idle setting.
A
B
Make sure that the throttle trigger is locked at idle setting when the throttle trigger lockout is released.
Press the throttle lockout and make sure it returns to its original position when you release it.
Check that the throttle trigger 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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H1159211-26,170911.fm Page 8 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
be checked. See instructions under the heading Maintenance.
Stop switch
Use the stop switch 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 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.
Always use the recommended guard for the cutting attachment you are using. See chapter on Technical data.
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WARNING! Never use a cutting |
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attachment without an approved guard. |
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See the chapter on Technical data. If an |
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incorrect or faulty guard is fitted this can |
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cause serious personal injury. |
Vibration damping system
Your machine is equipped with a vibration damping system that is designed to minimize 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.
Regularly check the vibration damping units for cracks or deformation.
Check that the guard is undamaged and not cracked. Replace the guard if it has been exposed to impact or is cracked.
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H1159211-26,170911.fm Page 9 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
Check that the vibration damping element is undamaged and securely attached.
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WARNING! Overexposure to vibration |
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can lead to circulatory damage or nerve |
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damage in people who have impaired |
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circulation. Contact your doctor if you |
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experience symptoms of overexposure |
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to vibration. Such symptoms include |
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numbness, loss of feeling, tingling, |
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pricking, pain, loss of strength, changes |
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in skin colour or condition. These |
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symptoms normally appear in the |
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fingers, hands or wrists. The risk |
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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.
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.
Never use a machine that has a faulty muffler.
Regularly check that the muffler is securely attached to the machine.
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WARNING! The inside of the muffler |
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contain chemicals that may be |
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carcinogenic. Avoid contact with these |
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elements in the event of a damaged |
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muffler. |
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WARNING! Bear in mind that:The |
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exhaust fumes from the engine are hot |
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and may contain sparks which can start |
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a fire. Never start the machine indoors or |
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near combustible material! |
Locking nut
A locking nut is used to secure some types of cutting attachment.
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
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H1159211-26,170911.fm Page 10 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
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.
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 spark plug cap before you start to work on it.
WARNING! Using an incorrect cutting ! attachment or an incorrectly sharpened
blade increases the risk of blade thrust.
Cutting equipment
Grass blades and grass knifes are intended for cutting coarse grass.
A trimmer head is intended for trimming grass.
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.
Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced.
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H1159211-26,170911.fm Page 11 Monday, September 11, 2017 10:20 AM
GENERAL SAFETY PRECAUTIONS
Sharpening grass knifes and grass blades
•See the cutting attachment packaging for correct sharpening instructions. Sharpen blades and knifes using a single-cut flat file.
•Sharpen all edges equally to maintain the balance of the blade.
! |
WARNING! Always discard a blade that is bent, twisted, cracked, broken or 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.
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 before use. This will make the cord tougher so that it lasts longer.
English – 11
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