Operator′s manual 524 L 525 LST 525 RJD 525 RS Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. E E E E n n n n g g g g l l l l i i i i s s s s h h h h...
KEY TO SYMBOLS Symbols Only use non-metallic, ﬂexible WARNING! Clearing saws, cutting attachments, i.e. trimmer brushcutters and trimmers can be heads with trimmer cord. dangerous! Careless or incorrect use can result in serious or fatal injury to the operator or others. It is extremely important that you read and understand the contents of the Primer bulb...
CONTENTS Contents Note the following before starting: KEY TO SYMBOLS Symbols ..............2 Please read the operator's manual carefully. CONTENTS Contents ............... 3 WARNING! Long-term exposure to noise can result in permanent hearing Note the following before starting: ......3 impairment.
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.
GENERAL SAFETY PRECAUTIONS Important WARNING! Never allow children to use or be in the vicinity of the machine. As the IMPORTANT! machine is equipped with a spring- loaded stop switch and can be started by The machine is only designed for trimming grass. low speed and force on the starter The only accessories you can operate with this engine handle, even small children under some...
GENERAL SAFETY PRECAUTIONS GLOVES WARNING! Never use a machine with Gloves should be worn when necessary, e.g. when ﬁtting faulty safety equipment. The machine's cutting attachments. 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.
GENERAL SAFETY PRECAUTIONS Vibration damping system 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 Your machine is equipped with a vibration damping be checked.
GENERAL SAFETY PRECAUTIONS Quick release For mufﬂers it is very important that you follow the instructions on checking, maintaining and servicing your There is an easily accessible, quick release ﬁtted at the machine. front as a safety precaution in case the engine catches Never use a machine that has a faulty mufﬂer.
GENERAL SAFETY PRECAUTIONS Cutting equipment WARNING! Bear in mind that: This section describes how to choose and maintain your cutting equipment in order to: • Reduce the risk of blade thrust. The exhaust fumes from the engine are hot and may contain sparks which can •...
GENERAL SAFETY PRECAUTIONS General rules Trimmer head IMPORTANT! Always ensure the trimmer cord is wound tightly and Only use cutting attachments with the guards we evenly around the drum, otherwise the machine will recommend! See the chapter on Technical data. generate harmful vibration.
ASSEMBLY Fitting the loop handle (524 L, 525 • Screw the screw through the handle and handlebar. Tighten it. LST, 525 RJD) • Unscrew the knob from the handlebar mounting. • Position the handlebar as shown. Fit the mounting components and tighten the knob lightly.
ASSEMBLY Assembling the cutting • Screw on the trimmer head/plastic blades (H) in the opposite direction to the direction of rotation. equipment WARNING! When ﬁtting the cutting attachment it is extremely important that the raised • To dismantle, follow the instructions in the reverse section on the drive disc/support ﬂange order.
ASSEMBLY Dismantling CAUTION! Use the recommended blade guard. See the Technical data section. • Loosen the coupling by turning the knob (at least 3 • Fit the drive disc (B) on the output shaft. times). • Turn the output shaft until one of the holes in the drive disc aligns with the corresponding hole in the gear housing.
ASSEMBLY Standard harness Correct height Adjust the shoulder strap so that the cutting attachment is parallel to the ground. 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.
Two-stroke oil • Secure the machine during transport. • For best results and performance use HUSQVARNA • In order to prevent unintentional starting of the engine, two-stroke engine oil, which is specially formulated for the spark plug cap must always be removed during our air-cooled two-stroke engines.
FUEL HANDLING Fueling Mixing • Always mix the petrol and oil in a clean container intended for fuel. • Always start by ﬁlling half the amount of the petrol to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture.
STARTING AND STOPPING Check before starting trimmer guard if they have been exposed to impact or are cracked. Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole. The most common reason why cracks are formed is that sharp corners have been formed at the bottom of the teeth while sharpening or that the blade has been used with dull...
STARTING AND STOPPING Choke: Move choke control up to choke position. use gloves. Do not use a machine with damaged spark plug cap. WARNING! When the engine is started For throttle handles with a start throttle with the choke in either the choke or start throttle positions the cutting lock: attachment will start to rotate...
WORKING TECHNIQUES General working instructions Always hold the machine with both hands. Hold the machine on the right side of your body. IMPORTANT! This section describes the basic safety precautions for working with brush cutters and trimmers. If you encounter a situation where you are uncertain how to proceed you should ask an expert.
WORKING TECHNIQUES Basic working techniques • Let the support cup rest lightly against the ground. It is used to protect the blade from hitting the ground. Always slow the engine to idle speed after each working • Reduce the risk of material wrapping around the blade operation.
WORKING TECHNIQUES 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.
Basic setting • The basic carburettor settings are adjusted during Your Husqvarna product has been designed and testing at the factory. The basic setting is richer than manufactured to speciﬁcations that reduce harmful the optimal setting and should be maintained for the emissions.
MAINTENANCE Adjusting the start throttle speed cause ﬁre if directed against dry and combustible material. The correct start throttle speed is set by means of an adjuster on the rear of the handle next to the cable. Use this screw (4 mm Allen screw) to increase or decrease the start throttle speed.
MAINTENANCE Cooling system spark plug should be replaced after about a month in operation or earlier if necessary. 0,65 To keep the working temperature as low as possible the machine is equipped with a cooling system. CAUTION! Always use the recommended spark plug type! Use of the wrong spark plug can damage the piston/ cylinder.
However, before using the machine you should check that the bevel gear is ﬁlled three-quarters full with grease. Use HUSQVARNA special grease. The grease in the bevel gear does not normally need to be changed except if repairs are carried out.
MAINTENANCE Maintenance schedule The following is a list of the maintenance steps that must be performed on the machine. Most of the items are described in the Maintenance section. The user must only carry out the maintenance and service work described in this Operator's Manual.