Husqvarna 323 C Service Manual
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EE E E nn n n gg g g ll l l ii i i ss s s hh h h 323C 325CX 323L 325LX 323LD 325LDX Operator ′ s manual Please read the operator’s manual carefully and make sure you understand the instructions before using the machine.
2 – English KEY TO SYMBOLS Symbols 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. 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 • Hearing protection • Approved eye protection Max. speed of output shaft, rpm This product is in accordance with applicable EC directives. 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. Only use non-metallic, flexible cutting attachments, i.e. trimmer heads with trimmer cord. Only intended for trimmer heads. 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. Other symbols/decals on the machine refer to special certification requirements for certain markets. 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.50FT15 m50FT15 m
English – 3 CONTENTS ContentsNote 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. KEY TO SYMBOLS Symbols .......................................................................2 CONTENTS Contents ......................................................................3 Note the following before starting: ................................3 SAFETY INSTRUCTIONS Personal protective equipment .....................................4 Machine ′ s safety equipment ........................................4 Checking, maintaining and servicing the machine ′ s safety equipment .......................................................... 6 Cutting equipment ........................................................7 General safety precautions ..........................................8 Fuel safety ...................................................................8 General working instructions .......................................9 Basic working techniques ............................................9 WHAT IS WHAT? What is what? ..............................................................11 ASSEMBLY Fitting the loop handle .................................................12 Fitting the loop handle .................................................12 Assembling and dismantling the two-piece shaft .........12 Fitting the trimmer head ...............................................13 Fitting a trimmer guard and Superauto II 1” trimmer head ............................................................................. 13 Fitting other guards and cutting attachments ...............13 Fitting the trimmer guard and trimmer head ................14 Fitting the trimmer guard and trimmer head ................14 FUEL HANDLING Fuel ..............................................................................15 Fuelling ........................................................................15 STARTING AND STOPPING Check before starting ...................................................16 Starting and stopping ...................................................16 MAINTENANCE Carburettor ...................................................................18 Muffler ..........................................................................19 Cooling system ............................................................20 Spark plug ....................................................................20 Two-piece shaft ...........................................................20 Air filter .........................................................................20 Maintenance schedule .................................................21 TECHNICAL DATA Technical data ..............................................................22 EC-declaration of conformity (Applies to Europe only) .25 ! 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. ! 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! Long-term exposure to noise can result in permanent hearing impairment. So always use approved hearing protection.
4 – English SAFETY INSTRUCTIONS Personal protective equipment 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 in the USA or EN 166 in EU countries. Visors must comply with standard EN 1731. 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 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. Throttle lock The throttle lock 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 lock 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. Stop switch Use the stop switch to switch off the engine. 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. IMPORTANT! 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 protection. Always remove your hearing protection as soon as the engine stops. ! WARNING! Never use a machine that has faulty safety equipment! Carry out the inspection, maintenance and service routines listed in this section. ! 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 – 5 SAFETY INSTRUCTIONS Vibration damping system Your machine is equipped with a vibration damping system that is designed to minimize vibration and make operation easier. Use of incorrectly wound cord or an incorrect cutting attachment 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. 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 a spark arrestor mesh. Check whether the muffler on your machine is fitted with this kind of mesh. For mufflers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety equipment. Cutting equipment A trimmer head is intended for trimming grass. Locking nut A locking nut is used to secure some types of cutting attachment. ! 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 colour or condition. These symptoms normally appear in the fingers, hands or wrists. The risk increases at low temperatures. ! WARNING! Mufflers fitted with catalytic 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! Bear in mind that: Engine exhaust fumes contain carbon monoxide, which can cause carbon monoxide poisoning. For this reason you should not start or run the 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!
6 – English SAFETY INSTRUCTIONS Checking, maintaining and servicing the machine ′′′ ′ s safety equipment Throttle lock • Make sure the throttle control is locked at the idle setting when the throttle lock is released. • Press the throttle lock and make sure it returns to its original position when you release it. • Check that the throttle control and throttle lock 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 be checked. See instructions under the heading Maintenance. Stop switch • Start the engine and make sure the engine stops when you move the stop switch to the stop setting. Cutting attachment guard • Ensure that the guard is undamaged and is 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. Vibration damping system • Regularly check the vibration damping units for cracks or deformation. • Check that the vibration damping element is undamaged and securely attached. Muffler • Never use a machine that has a faulty muffler. 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.
English – 7 SAFETY INSTRUCTIONS • Regularly check that the muffler is securely attached to the machine. • If the muffler on your machine is fitted with a spark arrestor mesh then it should be cleaned regularly. A blocked mesh causes the engine to overheat, which can lead to serious damage. Never use a muffler with a defective spark arrestor mesh. Cutting equipment This section describes how to choose and maintain your cutting equipment in order to: • Obtain maximum cutting performance. • Extend the life of cutting equipment. General rules 1 Only use cutting attachments with the guards we recommend! See the chapter on Technical data. 2 Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced. Locking nut • 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. 35-50 Nm (3.5- 5 kpm). CAUTION! 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 Trimmer head • 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. ! 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 service agent to get it repaired. IMPORTANT! 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. 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. IMPORTANT! Always ensure the trimmer cord is wound tightly and evenly around the drum, otherwise the machine will generate harmful vibration.
8 – English SAFETY INSTRUCTIONS General safety precautions Starting • The complete clutch cover and shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury. • Never start the machine indoors. Exhaust fumes can be dangerous if inhaled. • 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 attachment is clear of twigs and stones. Hold the body of the machine on the ground using your left hand (CAUTION! Not with your foot). Then grip the starter handle with your right hand and pull the starter cord. Never twist the starter cord around your hand. Fuel safety • Always use a fuel container with an anti-spill valve. • Never refuel the machine while the engine is running. Always stop the engine and let it cool for a few minutes before refuelling. • Make sure there is plenty of ventilation when refuelling or mixing fuel (petrol and 2-stroke oil). • Move the machine at least 3 m from the refuelling point before starting it. • Never start the machine: 1 If you have spilt fuel on it. Wipe off the spillage and allow remaining fuel to evaporate. 2 If you have spilt fuel on yourself or your clothes, change your clothes. Wash any part of your body that has come in contact with fuel. Use soap and water. 3 If the machine is leaking fuel. Check regularly for leaks from the fuel cap and fuel lines. 4 Avoid all skin contact with fuel. Fuel is a skin irritant and may even cause skin changes. Transport and storage • 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. • When storing and transporting fuel always use approved containers intended for this purpose. • When storing the machine for long periods the fuel tank must be emptied. Contact your local petrol station to find out where to dispose of excess fuel. ! 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. IMPORTANT! The machine is only designed for trimming grass. 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. Never use the machine in extreme weather conditions such as severe cold, very hot and/or humid climates. Never use a machine that has been modified in any way from its original specification. Wear personal protective equipment. See instructions under the heading Personal protective equipment. 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 and guards must be fitted before starting. Make sure the spark plug cap and HT lead are not damaged. Otherwise you could get an 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. ! WARNING! A faulty cutting attachment may increase the risk of accidents. ! WARNING! When the engine is started with the choke in either the choke or start throttle positions the cutting attachment will start to rotate immediately.
English – 9 SAFETY INSTRUCTIONS • The transport guard must always be fitted to the cutting attachment when the machine is being transported or in storage. • Ensure the machine is cleaned and that a complete service is carried out before long-term storage. General working instructions Basic safety rules 1 Look around you: • To ensure that people, animals or other things cannot affect your control of the machine. • 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. • 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 safely. 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. Fit the transport guard before carrying or transporting the equipment any distance. 5 Never put the machine down with the engine running unless you have it in clear sight. Basic working techniques • 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. Grass trimming using a trimmer head and plastic blades Trimming • Hold the trimmer head just above the ground at an angle. It is the end of the cord that does the work. Let the cord work at its own pace. Never 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 10-12 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. CAUTION! This technique increases the wear on the cord. • 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. ! WARNING! Take care when handling fuel. Bear in mind the risk of fire, explosion and inhaling fumes. IMPORTANT! This section describes the basic safety precautions for working with clearing saws and trimmers. 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. You must understand the difference between forestry clearing, grass clearing and grass trimming before use. ! WARNING! Sometimes branches or grass get caught between the guard and cutting attachment. Always stop the engine before cleaning.
10 – English SAFETY INSTRUCTIONS Cutting • The trimmer is ideal for cutting 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. Constant contact of this type can cause damage and wear to the trimmer head. Sweeping • The fan effect of the rotating cord can be used for quick and easy clearing up. Hold the cord parallel to and above the area to be swept and move the tool to and fro. • When cutting and sweeping you should use full throttle to obtain the best results. ! WARNING! Neither the operator of the machine nor anyone else may attempt to remove the cut material while the engine is running or the blade is rotating, as this can result in serious injury. Stop the engine and blade before you remove material that has wound around the blade shaft as otherwise there is a risk of injury. The bevel gear can get hot during use and may remain so for a while afterwards. You could get burnt if you touch it. ! WARNING! Watch out for thrown objects. Always wear 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.