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H1153174-95,426LST,430LS,US.fm Page 1 Monday, November 30, 2009 10:56 AM
Operator’s manual
426LST 430LS
Please read the operator’s manual carefully and make sure you understand the instructions
before using the machine.
E En ng glliis sh h
E En ng glliis sh h
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15 m 50FT H1153174-95,426LST,430LS,US.fm Page 2 Monday, November 30, 2009 10:56 AM KEY TO SYMBOLS Other symbols/decals on the machine refer to Symbols special certification requirements for certain WARNING! Clearing saws, markets. brushcutters and trimmers can be The engine is switched off by moving dangerous! Careless or incorrect the stop switch to the stop position. use can result in serious or fatal CAUTION! The stop switch injury to the operator or others. It is
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H1153174-95,426LST,430LS,US.fm Page 3 Monday, November 30, 2009 10:56 AM CONTENTS Contents Note the following before KEY TO SYMBOLS starting: Symbols ................................................................ 2 Please read the operator’s manual carefully. CONTENTS Maintenance, replacement, or repair of the emission Contents ............................................................... 3 control devices and system may b
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H1153174-95,426LST,430LS,US.fm Page 4 Monday, November 30, 2009 10:56 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 Huskvarna River, for production of muskets. The location was logical, since water power was harnessed from the Huskvarna River to create the water- powered plant. During ov
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H1153174-95,426LST,430LS,US.fm Page 5 Monday, November 30, 2009 10:56 AM WHAT IS WHAT? 10 8 11 7 16 6 15 9 12 14 13 5 3 17 2 19 18 4 1 What is what? 1 Trimmer head 11 Cylinder cover 2 Grease filler cap, bevel gear 12 Starter handle 3 Bevel gear 13 Fuel tank 4 Cutting attachment guard 14 Air purge 5 Shaft 15 Choke control 6 Loop handle 16 Air filter cover 7 Stop switch 17 Combination spanner 8 Throttle lockout 18 Locking pin 9 Throttle control 19 Operator’s manual 10 Spark plug cap a
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H1153174-95,426LST,430LS,US.fm Page 6 Monday, November 30, 2009 10:56 AM GENERAL SAFETY PRECAUTIONS Important Personal protective equipment IMPORTANT! IMPORTANT! The machine is only designed for trimming grass. A clearing saw, brushcutter or trimmer can be dangerous if used incorrectly or carelessly, and can The only accessories you can operate with this engine cause serious or fatal injury to the operator or others. It unit are the cutting attachments we recommend in t
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H1153174-95,426LST,430LS,US.fm Page 7 Monday, November 30, 2009 10:56 AM GENERAL SAFETY PRECAUTIONS CLOTHING Throttle lockout Wear clothes made of a strong fabric and avoid loose The throttle lockout is designed to prevent accidental clothing that can catch on twigs and branches. Always operation of the throttle control. When you press the lock wear heavy, long pants. Do not wear jewellery, shorts (A) (i.e. when you grasp the handle) it releases the throttle
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H1153174-95,426LST,430LS,US.fm Page 8 Monday, November 30, 2009 10:56 AM GENERAL SAFETY PRECAUTIONS For mufflers it is very important that you follow the Cutting attachment guard instructions on checking, maintaining and servicing your machine. Never use a machine that has a faulty muffler. Regularly check that the muffler is securely attached to This guard is intended to prevent loose objects from being the machine. thrown towards the operator. The guard also protects t
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H1153174-95,426LST,430LS,US.fm Page 9 Monday, November 30, 2009 10:56 AM GENERAL SAFETY PRECAUTIONS Trimmer head Cutting equipment This section describes how to choose and maintain your IMPORTANT! cutting equipment in order to: Always ensure the trimmer cord is wound tightly and • Reduce the risk of blade thrust. evenly around the drum, otherwise the machine will • Obtain maximum cutting performance. generate harmful vibration. • Extend the life of cutting equipment. • Onl
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H1153174-95,426LST,430LS,US.fm Page 10 Monday, November 30, 2009 10:56 AM ASSEMBLY Fitting the loop handle Fitting the trimmer guard and trimmer head • Position the handle on the shaft. Note that the handle must be mounted below the arrow on the shaft. • Fit the correct trimmer guard (A) for use with the trimmer head. A • Tighten the two screws. • Fit the drive disc (B) on the output shaft. • Slide the spacer into the slot in the loop handle. Fit the nut and screw. Tighten. Assembling the
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H1153174-95,426LST,430LS,US.fm Page 11 Monday, November 30, 2009 10:56 AM FUEL HANDLING Gasoline Fuel safety Never start the machine: 1 If you have spilled fuel on it. Wipe off the spillage and allow remaining fuel to evaporate. CAUTION! Always use a quality gasoline/oil mixture with 2 If you have spilled fuel on yourself or your clothes, an octane rating of at least 87 octane ((RON+MON)/2). If change your clothes. Wash any part of your body that your machine is equipped with a catalyti
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H1153174-95,426LST,430LS,US.fm Page 12 Monday, November 30, 2009 10:56 AM FUEL HANDLING Mixing Fueling • Always mix the gasoline and oil in a clean container intended for fuel. • Always start by filling half the amount of the gasoline to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. Add the remaining amount of WARNING! Taking the following gasoline. precautions, will lessen the risk of fire: ! • Mix (shake) the fuel mixture thoroughly before filling the machine’s
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H1153174-95,426LST,430LS,US.fm Page 13 Monday, November 30, 2009 10:56 AM STARTING AND STOPPING Primer bulb: Press the air purge repeatedly until fuel Check before starting begins to fill the bulb. The bulb need not be completely filled. • Check that the trimmer head and trimmer guard are not damaged or cracked. Replace the trimmer head or trimmer guard if they have been exposed to impact or are cracked. • Never use the machine without a guard nor with a defective guard. • All covers must
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H1153174-95,426LST,430LS,US.fm Page 14 Monday, November 30, 2009 10:56 AM STARTING AND STOPPING CAUTION! Do not pull the starter cord all the way out and do not let go of the starter handle when the cord is fully extended. This can damage the machine. Stopping Stop the engine by switching off the ignition. 14 – English RUN STOP
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H1153174-95,426LST,430LS,US.fm Page 15 Monday, November 30, 2009 10:56 AM WORKING TECHNIQUES 6 Always hold the machine with both hands. Hold the General working instructions machine on the right side of your body. IMPORTANT! This section takes up the basic safety precautions for working with a trimmer. If you encounter a situation where you are uncertain how to proceed you should ask an expert. Contact your dealer or your service workshop. Avoid all usage which you consider to be beyond y
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H1153174-95,426LST,430LS,US.fm Page 16 Monday, November 30, 2009 10:56 AM WORKING TECHNIQUES Clearing Basic working techniques • The clearing technique removes all unwanted Always slow the engine to idle speed after each working vegetation. Keep the trimmer head just above the operation. Long periods at full throttle without any load on ground and tilt it. Let the end of the cord strike the the engine can lead to serious engine damage. ground around trees, posts, statues and the like. C
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H1153174-95,426LST,430LS,US.fm Page 17 Monday, November 30, 2009 10:56 AM MAINTENANCE On mufflers without a catalytic converter the screen Carburetor should be cleaned weekly, or replaced if necessary. On mufflers fitted with a catalytic converter the screen should Adjustment of the idle speed be checked, and if necessary cleaned, monthly. If the Check that the air filter is clean. When the idle speed is screen is damaged it should be replaced. If the screen correct, the cutting attachment
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H1153174-95,426LST,430LS,US.fm Page 18 Monday, November 30, 2009 10:56 AM MAINTENANCE replaced after about a month in operation or earlier if • Excessive fuel consumption. necessary. 0,6 - 0,7 mm (426 LST) 0,9 - 1,0 mm (430 LS) Clean the filter every 25 hours, or more regularly if conditions are exceptionally dusty. CAUTION! Always use the recommended spark plug An air filter that has been in use for a long time cannot be type! Use of the wrong spark plug can damage the piston/ cleaned comp
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H1153174-95,426LST,430LS,US.fm Page 19 Monday, November 30, 2009 10:56 AM MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. Daily Weekly Monthly Maintenance maintenance maintenance maintenance Clean the outside of the machine. X Make sure the throttle trigger lock and the throttle function X correctly from a safety point of view. Check that the stop switch works corr
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H1153174-95,426LST,430LS,US.fm Page 20 Monday, November 30, 2009 10:56 AM TECHNICAL DATA Technical data 426LST 430LS Motor 3 Cylinder displacement, cu.in/cm 1,55/25,4 1,80/29,5 Cylinder bore, inch/mm 1,34/34 1,50/38 Stroke, inch/mm 1,10/28 1,03/26 Idle speed, rpm 3000 3000 Recommended max. speed, rpm 11500 10000 Speed of output shaft, rpm 5500 6850 Max. engine output, acc. to ISO 8893, kW/ rpm 0,87/7500 1,03/8500 Catalytic converter muffler No No Speed-regulated ignition system No No Ignition
