Husqvarna 125 L Service Manual
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EE E E nn n n gg g g ll l l ii i i ss s s \b\b \b \b 125C 125L Operator’s Manual Please read the operator’s manual carefully and make sure youunderstand the instructions before using the machine.
2 CONTENTS ContentsCONTENTS Contents 2........................ Note the following before starting 2.... KEY TO SYMBOLS Symbols 3......................... SAFETY INSTRUCTIONS Personal protective equipment 4...... Machine’s safety equipment 4........ Cutting equipment 5................. Checking, maintaining and servicing the machine’s safety equipment 5..... General safety precautions 8......... Starting safety 8.................... Fuel safety 8....................... Transporting and storage 9........... General working instructions 9........ Basic safety rules 9................. Basic working techniques 9.......... KNOW YOUR TRIMMER Know your trimmer 11................ ASSEMBLY Fitting the loop handle 12............. Fitting the trimmer guard and trimmer head 12..................... FUEL HANDLING Fuel 13............................ Fueling 13.......................... STARTING AND STOPPING Check before starting 14.............. Starting and stopping 14.............. MAINTENANCE Carburetor 16....................... Muffler 16.......................... Spark plug 17....................... Air filter 17.......................... Bevel gear 17....................... Maintenance schedule 18............. TECHNICAL DATA Technical data 20.................... YOUR WARRANTY RIGHTS AND OBLIGATIONS21 ................... EMISSION CONTROL WARRANTY STATEMENT22 ......... Note the following before starting: Husqvarna AB has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice. Long-- term exposure to noise can result in permanent hearing impairment. Always use approved hearing protection. Maintenance, replacement, or repair of the emission control devices and system may be performed by any nonroad engine re- pair establishment or individual.The Emissions Compliance Period referred to on the Emissions Compliance label indi- cates the number of operating hours for which the engine has been shown to meet Federal emissions requirements. Category C = 50 hours, B= 125 hours, and A = 300 hours. For reference, please fill out the following information that will be needed for future servicing of your trimmer: Model Number: Serial Number: Purchase Date: Purchased From: WARNING!A clearing saw, brushcutter or trimmer can be dangerous if used incorrectly or carelessly, and can cause serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of this operator’s manual. WARNING!Under no circum- stances may the design of the machine be modified without the permission of the manufacturer. Always use genuine accessories. Non -- authorized modifications and/or accessories can result in serious personal injury or the death of the operator or others. Your warranty may not cover damage or liability caused by the use of non -- authorized accesso- ries or replacement parts. WARNING!The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
3 KEY TO SYMBOLS Only intended for trimmer heads. Other symbols/decals on the machine refer to special certification requirements for certain markets. Stop the engine by pushing and holding the stop switch in the STOP position until the engine stops before carrying out any checks or maintenance. Regular cleaning is required. Visual check. Approved eye protection must always be used.Symbols WARNI NG ! 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: SA protective helmet where there is a risk of falling objects SHearing protection SApproved eye protection Max. speed of output shaft, rpm Watch out for thrown objects and ricochets. The operator of the machine must ensure, while working, that no persons or animals come closer than 50 feet (15 meters). Arrows which show limits for handle positioning. Always wear approved protective gloves. Wear sturdy, non-- slip boots. Only use non-- metallic, flexible cutting attachments, i.e. trimmer heads with trimmer line.
4 SAFETY INSTRUCTIONS 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. BOOTS Wear sturdy, non-- slip boots. CLOTHING Wear clothes made of a strong fabric and avoid loose clothing that can catch on twigs and branches. Always wear heavy, long pants. Do not wear jewelry, shorts sandals or go barefoot. Secure hair so it is above shoulder level. Personal protective equipment WARNING !Listen out for warn- ing signals or shouts when you are wearing hearing protection. Always remove your hearing protection as soon as the engine stops. IMPORTANT!Whenever you use a clear- ing saw, brushcutter or trimmer you must wear personal protective equipment that is approved by the authorities. Personal protective equipment does not eliminate the risk of accidents, but it can reduce the effects of an injury in the event of an acci- dent. Ask your dealer for help when choosing protective equipment. FIRST AID KIT Always have a first aid kit nearby. Machine’s safety equipmentThis section describes the machine’s safe- ty equipment, its purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. See the “Know your trimmer ” section to locate where this equipment is positioned on your machine. The life span of the machine can be reduced and the risk of accidents can increase if machine maintenance is not carried out correctly and if service and/or repairs are not carried out professionally. If you need further information please contact your nearest ser- vicing dealer. Throttle lockThe throttle lock is designed to prevent ac- cidental 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 switchMake sure the engine stops when you push and hold the stop switch. WARNING!Never use a machine that has faulty safety equipment! Carry out the inspection, mainte - nance and service routines listed in this section. A B
5 SAFETY INSTRUCTIONS Cutting attachment guardThis guard is intended to prevent loose ob- jects from being thrown towards the opera- tor. The guard also protects the operator from accidental contact with the cutting at- tachment. Use of incorrectly wound trimmer line or an incorrect cutting attachment increases the level of vibration. MufflerThe muffler is designed to reduce the noise level and to direct the exhaust gases away from the operator. CAUTION!Muffler is fitted with a catalytic converter designed to reduce harmful ex- haust gases. For mufflers, it is very important that you fol- low the instructions on checking, maintain- ing, and servicing your machine. See Checking, maintaining and servicing the machine’s safety equipment section. WARNING!Never use a cutting attachment without an approved guard. See the section on “Technical data”. If an incorrect or faulty guard is fitted this can cause serious personal injury. WARNING!Overexposure to vibration can lead to circulatory damage or nerve damage in people who have impaired circulation. Contact your doctor if you experi - ence symptoms of overexposure to vibration. Such symptoms include numbness, loss of feeling, tingling, pricking, pain, loss of strength, changes in skin color or condition. These symptoms normally appear in the fingers, hands or wrists. The risk increases at low temperatures. WARNING!Mufflers fitted with catalytic converters get very hot duringuseandremainsoforsome time after stopping. This also ap - plies at idle speed. Contact can re - sult in burns to the skin. Remember theriskoffire! 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 car - bon monoxide, which can cause carbon monoxide poisoning. For this reason you should not start or run the machine indoors, or any - where 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 com- bustible material! Cutting equipmentA trimmer head is intended for trimming grass. Checking, maintaining and servicing the machine’s safety equipment IMPORTANT! All servicing and repair work on the machine requires special training. This is especially true of the machine’s safety equipment. If your machine fails any of the checks de- scribed below you must contact your service agent. When you buy any of our products we guarantee the availability of professional re- pairs and service. If the retailer who sells your machine is not a servicing dealer, ask him for the address of your nearest service agent.
6 SAFETY INSTRUCTIONS Throttle lockSMake sure the throttle control is locked at the idle setting when the throttle lock is released. SPress the throttle lock and make sure it returns to its original position when you release it. SCheck that the throttle control and throttle lock move freely and that the return springs work properly. SSee instructions under the section “Start”. Start the machine and apply full throttle. Release the throttle and check that the cutting attachment stops and re- mains at a standstill. If the cutting attach- ment rotates with the throttle in the idle position then the carburetor idle setting must be checked. See instructions under the section “Maintenance”.Stop switchSStart the engine and make sure the engine stops when you push and hold the stop switch. Cutting attachment guard SEnsure that the guard is undamaged and is not cracked. SReplace the guard if it has been exposed to impact or is cracked. SAlways use the recommended guard for the cutting attachment you are using. See section on “Technical data”. Muffler SNever use a machine that has a faulty muffler. SRegularly check that the muffler is securely attached to the machine. SThe muffler on this unit is equipped with a special spark arrestor mesh. The mesh should be checked and, if necessary. cleaned by a servicing dealer. A blocked mesh will cause the machine to overheat, which can lead to serious damage. Never use a muffler with a defective spark arres- tor mesh. See the Maintenance section.
7 SAFETY INSTRUCTIONS Trimmer h eadSOnly use the recommended cutting at- tachments. See the section on “Technical data”. 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: Obtain maximum cutting performance. Extend the life of cutting equipment. Only use cutting attachments with the guards we recommend! See the section on “Technical data”. Refer to the instructions for the cutting attach- ment to check the correct way to load the trimmer line and the correct line diameter.IMPORTANT! Always ensure the trimmer line is wound tightly and evenly around the drum, other- wise the machine will generate harmful vibration.WARNING!Always stop the en- gine before doing any work on the cutting attachment. This continues to rotate even after the throttle has been released. Ensure that the cutting attachment has stopped completely and disconnect the HT lead from the spark plug before you start to work on it. Cutting equipmentThis section describes how to choose and maintain your cutting equipment in order to: SObtain maximum cutting performance. SExtend the life of cutting equipment. General rules 1. Only use cutting attachments with the guards we recommend! See the section on “Technical Data”. 2. Check the cutting attachment for damage or cracks. A damaged cutting attachment should always be replaced.SSmaller machines generally require small trimmer heads and vice versa. This is be- cause when clearing using trimmer line the engine must throw out the trimmer line radially from the trimmer head and overcome the resistance of the grass being cleared. SThe length of the trimmer line is also im- portant. A longer trimmer line requires greater engine power than a shorter trimmer line of the same diameter. SMake sure that the cutter on the trimmer guard is intact. This is used to cut the trimmer line to the correct length. STo increase the life of the trimmer line it can be soaked in water for a couple of days. This will make the line tougher so that it lasts longer.
8 SAFETY INSTRUCTIONS General safety precautions IMPORTANT! SThe machine is only designed for trimming grass. SThe only accessories you can operate with this engine unit are the cutting at- tachments we recommend in the “Tech- nical data” section. SNever use wire, rope, string, etc. SNever use the machine if you are tired, if you have drunk alcohol, or if you are tak- ing medication that could affect your vi- sion, your judgment or your coordination. SNever use the machine in extreme weath- er conditions such as severe cold, very hot and/or humid climates. SNever use a machine that has been modi- fied in any way from its original specifica- tion. SWear personal protective equipment. See instructions in the “Personal protective equipment” section. SNever 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 quali- fied specialists. See instructions in the “Maintenance” section. SAll 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. SThe machine operator must ensure that no people or animals come closer than 15 meters while working. SStay clear of spinning line. SSecure or remove loose clothing or cloth- ing with loosely hanging ties, straps, tas - sels, etc. They can be caught in moving parts. SBeing fully covered also helps protect you from debris and pieces of toxic plants thrown by spinning line. SKeep handles free of oil and fuel. SAlways keep the engine on the right hand side of your body. SHold the unit firmly with both hands. SKeep trimmer head below waist level and away from all parts of your body. Do not raise engine above your waist. SKeep all parts of your body away from muffler and spinning line. Keep engine be- low waist level. A hot muffler can cause serious burns. SKeep firm footing and balance. Do not overreach or use from unstable surfaces such as ladders, trees, steep slopes, roof- tops, etc. SUse only in daylight or good artificial light. SUse only for jobs explained in this manual. Starting SEnsure that all of the engine covers and housings are properly fitted before the trimmer is started. SNever start or attempt to run the unit with the clutch, clutch drum, clutch cover, or driveshaft removed. SNever start the machine indoors. Exhaust fumes can be dangerous if inhaled. SObserve your surroundings and make sur ethat there is no risk of people or animals coming into contact with the cutting equip- ment. SSee the “Starting and Stopping” section for complete instructions. Fuel safety SAlways use a fuel container with an anti-- spill valve. SNever refuel the machine while the engine is running. SAlways stop the engine and let it cool for a few minutes before refueling. SMake sure there is plenty of ventilation when refueling or mixing fuel (gasoline and 2-- stroke oil). SMove the machine at least 10 feet (3 me- ters) from the refueling point before start- ing it. SNever start the machine: SIf you have spilled fuel on it. Wipe off the spillage and allow remaining fuel to evaporate. SIf you have spilled 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. WARNI NG !Whentheengineis started with the choke in either the choke or start throttle positions the cutting attachment will start to rotate immediately. WARNING!A faulty cutting at- tachment may increase the risk of accidents. Min. 10 ft. (3 m)
9 SAFETY INSTRUCTIONS SIf the machine is leaking fuel. Check regularly for leaks from the fuel cap and fuel lines. SAvoid all skin contact with fuel. Fuel is a skin irritant and may even cause skin changes. Transporting and storageSStore 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 electri- cal machinery, electric motors, electrical relays/switches or boilers. SWhen storing and transporting fuel al- ways use approved containers intended for this purpose. SWhen storing the machine for long peri- ods the fuel tank must be emptied. Con- tact your local gas station to find out where to dispose of excess fuel. General working instructions IMPORTANT! This section describes the basic safety pre- cautions for working with trimmers. If you encounter a situation where you are uncer- tain how to proceed you should ask an ex - pert. Contact your servicing dealer. Avoid all usage which you consider to be beyond your capability. You must understand the difference between forestry clearing, grass clearing and grass trimming before use. Basic safety rules 1. Look around you: STo ensure that people, animals or other things cannot affect your control of the machine. STo ensure that people, animals, etc., do not come into contact with the cut- ting attachment or loose objects that are thrown out by the cutting attach- ment. SCAUTION!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 mo ve and stand safely. Check the area around you for possible ob- stacles (roots, rocks, branches, ditches, etc.) in case you have to move suddenly. Take great care when working on sloping ground. 4. Switch off the engine before moving to another area. 5. Never put the machine down with the engine running. Basic working techniquesSAlways 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 Trimming SHold the trimmer head just above the ground at an angle. It is the end of the trim- mer line that does the work. Let the trim- mer line work at its own pace. Never press the trimmer line into the area to be cut. SThe trimmer line can easily remove grass and weeds up against walls, fences, trees and borders, however it can also damage sensitive bark on trees and bushes, and damage fence posts. SReduce the risk of damaging plants by short- ening the trimmer line to 4-- 4 1/2 inches (10-- 12 cm) and reducing the engine speed. SWhen trimming you should use less than full throttle so that the trimmer line lasts longer and to reduce the wear on the trimmer head. WARNING!Sometimes branches or grass get caught between the guard and cutting attachment. Always stop the engine before cleaning. WARNING !Take care when han- dling fuel. Bear in mind the risk of fire, explosion and inhaling fumes.
10 SAFETY INSTRUCTIONS Sweeping SThe fan effect of the rotating line can be used for quick and easy clearing up. Hold the trimmer line parallel to and above the area to be swept and move the tool to and fro. SWhen cutting and sweeping you should use full throttle to obtain the best results.Clearing SThe clearing technique removes all un- wanted vegetation. Keep the trimmer head just above the ground and tilt it. Let the end of the trimmer line strike the ground around trees, posts, statues and the like.CAUTION!This technique increases the wear on the trimmer line. SThe trimmer line wears quicker and must be fed forward more often when working against stones, brick, concrete, metal fences, etc., than when coming into con- tact with trees and wooden fences. Cutting SThe trimmer is ideal for cutting grass that is difficult to reach using a normal lawn mower. Keep the trimmer line parallel to the ground when cutting. Avoid pressing the trimmer head against the ground as this can ruin the lawn and damage the tool. SDo not allow the trimmer head to con-- stantly come into contact with the ground during normal cutting. Constant contact of this type can cause damage and wear to the trimmer head. WARNING!Neither the operator of the machine nor anyone else may attempt to remove the cut material while the engine is running or the trimmer line is rotating, as this can result in serious injury. Stop the engine and trimmer head before you remove material that has wound around the drive 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 burned if you touch it. WARNING!Watch out for thrown objects. Always wear eye protection. Never lean over the cutting attach - ment guard. Stones, rubbish, etc. can be thrown up into the eyes causing blindness or serious injury. Keep unauthorized persons at a dis - tance. Children, animals, onlookers and helpers should be kept outside the safety zone of 50 feet (15 meters). Stop the machine immediately if anyone approaches.