525iLST - Brush cutter HUSQVARNA - Free user manual and instructions

Product Type	Battery-powered brush cutter
Brand	Husqvarna
Model	525iLST
Engine Type	Brushless electric motor e-torq BLDC
Output shaft speed (head/blade)	5500 / 7200 rpm
Cutting width	460 mm (18.1 in)
Weight (without battery)	3.4 kg (7.5 lb)
Compatible battery	Husqvarna BLi300 (Lithium-ion, 36 V, 9.4 Ah)
Compatible charger	Husqvarna QC500 (100-240 V, 50-60 Hz)
Guaranteed noise power level	96 dB(A)
Sound pressure level (at ear)	80 dB(A)
Vibration level (front/rear)	2.7 / 2.5 m/s²
Wireless technology	Bluetooth® (2.4 GHz band, max power 0 dBm)
Included accessories	Trimmer head T35/T35x, cutting tool guard, multi-tool
Cutting options	Trimmer head (line 2.4-2.7 mm), grass blades 3T or 4T (Ø 255 mm)
Safety devices	Trigger lock, cutting tool guard, automatic stop, overload and temperature protection
Maintenance	Regular cleaning, lubrication of the angle gear every week, checking connections
Protection rating	Protected against water splashes
Warranty	Contact an authorized service center for repairs

Frequently Asked Questions - 525iLST HUSQVARNA

Which battery can I use with the Husqvarna 525iLST brush cutter?

Use only the original Husqvarna BLi300 battery (Lithium-ion, 36 V, 9.4 Ah). Other batteries may damage the device or pose a risk.

How to charge the battery correctly?

Use the supplied QC500 charger. Plug it into a power outlet (100-240 V, 50-60 Hz). The ambient temperature must be between 5 °C and 40 °C. Never charge a damaged battery.

What is the battery runtime?

Runtime depends on the speed mode and operating conditions. With a fully charged BLi300 battery in mode 1 or 2, you can work for about 45 minutes. In mode 3 (full power), runtime is reduced.

How to replace the cutting line on the T35 head?

Stop the device and remove the battery. Press the latches on the trimmer head to open the cover. Wind the new line (diameter 2.4-2.7 mm) evenly onto the spool. Replace the cover and cut the line to the desired length (10-12 cm).

Can I use a blade instead of the trimmer head?

Yes, you can mount a grass blade 3T or 4T (diameter 255 mm). Make sure to use the appropriate cutting tool guard and securely fasten the blade with the supplied nut. Consult the manual for mounting instructions.

What to do in case of tool overheating?

The red LED flashes in case of overload or temperature deviation. Release the trigger, remove the battery, and let the tool cool down for at least 15 minutes. Check that nothing is blocking the cutting tool.

How to maintain the brush cutter to extend its life?

Clean the device after each use with a dry cloth. Regularly check the tightness of screws, the condition of the blade or line, the protective guard and handles. Lubricate the angle gear every week with Husqvarna grease.

What safety distance should I maintain?

Keep people and animals at least 15 meters away during use. Always wear safety glasses, hearing protection, gloves, and safety boots.

How to connect the Husqvarna Fleet Services app?

Download the app on your mobile, log in, and follow the instructions to pair your 525iLST via Bluetooth. The Bluetooth symbol lights up when the connection is established.

Where can I find spare parts or get my device repaired?

Contact an authorized Husqvarna service center. Use only original parts. Major repairs must be performed by a qualified technician.

USER MANUAL 525iLST HUSQVARNA

Silhouette of a handheld tool or probe with a handle and connector (no text or symbols)

525iLST

EN Operator's manual 2-20

Transportation, storage and disposal.... 18
Technical data.... 19
Accessories....20
Registered trademarks.... 20
Appendix 62

Introduction

Product description

Husqvarna 525iLST is a battery grass trimmer with an electrical motor.

Work is constantly in progress to increase your safety and efficiency during operation. Speak to your servicing dealer for more information.

Intended use

The product is used with a trimmer head to cut grass. Do not use the product for other tasks than grass trimming and grass clearing.

Note: National regulations can set limit to the operation of the product.

Only use the product with accessories that are approved by the manufacturer. Refer to Accessories on page 20.

Product overview

Exploded view diagram of a mechanical device with numbered parts for identification

1. Trimmer head

2. Shaft

3. Knob

4. Loop handle

5. Power trigger lockout

6. Power trigger
7. Speed mode button
8. Start/stop button
9. User interface
10. Operator's manual
11. Locking pin
12. Combination tool
13. Charger cable
14. Charger
15. Power on and Warning indicator (LED)
16. Cutting attachment guard
17. Drive disc
18. Battery
19. Battery release buttons
20. Warning indicator (LED)
21. Battery indicator button
22. State of charge

Symbols on the product

WARNING! This product can be 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 operator's manual. Please read the operator's manual carefully and make sure you understand the instructions before the product is used.

Use eye and ear protection.

Maximum speed or no-load speed.

XXXX /min or min ^-1

Revolutions or reciprocations per minute.

Disconnect battery before maintenance.

The product can cause objects to eject, which can cause injury.

Keep a minimum distance of 15 m to persons and animals during operation of the product.

Use approved protective gloves.

Use heavy-duty slip-resistant boots.

Protected against splashing water.

Rated voltage, V

Direct current.

Risk of blade thrust.

Keep all parts of your body away from the hot surfaces.

If the product features Bluetooth ^® wireless technology. The Bluetooth ^® symbol will be marked on the product name label.

yyyyMMdd

the rating plate shows the serial number. yyyy is the production year, ww is the production week and xxxxx is the sequential number.

Note: Other symbols/decals on the product refer to certification requirements for other commercial areas.

WARNING

This product contains or emits a chemical known to the State of California to cause cancer or birth defects or other reproductive harm.

Manufacturer

Husqvarna AB

As referred to in the product liability laws, we are not liable for damages that our product causes if:

• the product is incorrectly repaired.
• the product is repaired with parts that are not from the manufacturer or not approved by the manufacturer.
• the product has an accessory that is not from the manufacturer or not approved by the manufacturer.
- the product is not repaired at an approved service center or by an approved authority.

Safety

Safety definitions

Warnings, cautions and notes are used to point out specially important parts of the manual.

WARNING: Used if there is a risk of injury or death for the operator or bystanders if the instructions in the manual are not obeyed.

CAUTION: Used if there is a risk of damage to the product, other materials or the adjacent area if the instructions in the manual are not obeyed.

Note: Used to give more information that is necessary in a given situation.

IMPORTANT SAFETY INSTRUCTIONS

Read all instructions

WARNING: When using electric gardening appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and personal injury, including the following:

General power tool safety warnings

WARNING: Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

- Save all warnings and instructions for future reference. The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work area safety

• Keep work area clean and well lit. Cluttered or dark areas invite accidents.
• Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
• Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

• Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
• Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
• Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
• Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep

cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.

• When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
• If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of a RCD reduces the risk of electric shock.

Personal safety

• Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
• Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
• Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
• Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
• Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
• Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
• If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
• Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power tool use and care

• Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.

• Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.

• Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.

• Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
• Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool's operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
• Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
• Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery tool use and care

• Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
• Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
• When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritations or burns.
• Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
• Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130^ may cause explosion.
• Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging

improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

- Remove the battery pack from the tool before making adjustments, changing accessories, or storing the tool. Such preventive safety measures reduce the risk of starting the battery tools accidentally.

Service

• Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
• Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Grass trimmer, brush cutter and brush saw safety warnings

• Do not use the machine in bad weather conditions, especially when there is a risk of lightning. This decreases the risk of being struck by lightning.
• Thoroughly inspect the area for wildlife where the machine is to be used. Wildlife may be injured by the machine during operation.
• Thoroughly inspect the area where the machine is to be used and remove all stones, sticks, wires, bones, and other foreign objects. Thrown objects can cause personal injury.
• Before using the machine, always visually inspect to see that the cutter or blade and the cutter or blade assembly are not damaged. Damaged parts increase the risk of injury.
• Follow instructions for changing accessories.
• Improperly tightened blade securing nuts or bolts may either damage the blade or result in it becoming detached.
• The rated rotational speed of the cutter must be at least equal to the maximum rotational speed marked on the machine. Cutters running faster than their rated rotational speed can break and fly apart.
• Wear eye, ear, head and hand protection. Adequate protective equipment will reduce personal injury by flying debris or accidental contact with the cutting line or blade.
• While operating the machine, always wear safety footwear. Do not operate the machine when barefoot or wearing open sandals. This reduces the chance of injury to the feet from contact with a moving cutter, line or blade.
• While operating the machine, always wear long trousers. Exposed skin increases the likelihood of injury from thrown objects.

• Keep bystanders away while operating the machine. Thrown debris can result in serious personal injury.

• Always use two hands when operating the machine. Holding the machine with both hands will avoid loss of control.

• Hold the machine by the insulated gripping surfaces only, because the cutting line or blade may contact hidden wiring. Cutting line or blades contacting a "live" wire may make exposed metal parts of the machine "live" and could give the operator an electric shock.
  • Always keep proper footing and operate the machine only when standing on the ground. Slippery or unstable surfaces may cause a loss of balance or control of the machine.
• Do not operate the machine on excessively steep slopes. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
• When working on slopes, always be sure of your footing, always work across the face of slopes, never up or down and exercise extreme caution when changing direction. This reduces the risk of loss of control, slipping and falling which may result in personal injury.
• Keep all parts of the body away from the cutter, line or blade when the machine is operating. Before you start the machine, make sure the cutter, line or blade is not contacting anything. A moment of inattention while operating the machine may result in injury to yourself or others.
• Do not operate the machine above waist height. This helps prevent unintended cutter or blade contact and enables better control of the machine in unexpected situations.
• When cutting brush or saplings that are under tension, be alert for spring back. When the tension in the wood fibres is released, the brush or sapling may strike the operator and/or throw the machine out of control.
• Use extreme caution when cutting brush and saplings. The slender material may catch the blade and be whipped toward you or pull you off balance.
• Maintain control of the machine and do not touch cutters, lines or blades and other hazardous moving parts while they are still in motion. This reduces the risk of injury from moving parts.
• When clearing jammed material or servicing the machine, make sure all power switches are off and the power cord is disconnected. Unexpected starting of the machine while clearing jammed material or servicing may result in serious personal injury.
• Carry the machine with the machine switched off and away from your body. Proper handling of the machine will reduce the likelihood of accidental contact with a moving cutter, line or blade.
• When transporting or storing the machine, always fit the cover on metal blades. Proper handling of the machine will reduce the likelihood of accidental contact with the blade.
• Only use replacement cutters, lines, cutting heads and blades specified by the manufacturer. Incorrect

replacement parts may increase the risk of breakage and injury.

Blade thrust causes and related warnings

• Maintain a firm grip with both hands on the machine and position your arms to resist blade thrust. Position your body to the left side of the machine. Blade thrust can increase the risk of injury due to the machine moving unexpectedly. Blade thrust can be controlled by the operator if proper precautions are taken.
• If the blade binds, or when interrupting a cut for any reason, switch the machine off and hold the machine motionless in the material until the blade comes to a complete stop. While the blade is binding, never attempt to remove the machine from the material or pull the machine backward while the blade is in motion, otherwise blade thrust may occur. Investigate and take corrective actions to eliminate the cause of blade binding.
• Do not use blunt or damaged blades. Blunt or damaged blades increase the risk of jamming or catching on an object, resulting in blade thrust.
• Always maintain good visibility of the material being cut. Blade thrust is more likely to occur in areas where it is difficult to see the material being cut.
• If you are approached by another person while operating the machine, switch the machine off. There is an increased risk of injury to other persons being struck by the moving blade in the event of blade thrust.

Other general safety information

• Deactivate the product before you move to another area. Always remove the battery when passing the product to another person.
• Never put the product down unless you have deactivated it and removed the battery. Do not leave the product unsupervised when it is switched on.
• The cutting tool does not stop immediately after the product is turned off.
• The blade should be completely stopped once the trigger switch has returned to the initial position.
• Before using the product and after any impact, check for signs of wear or damage and repair as necessary.
• If anything jams in the cutting attachment while you operate the product, stop and deactivate the product. Make sure that the cutting attachment stops completely. Remove the battery before you clean, inspect or repair the product and/or the cutting equipment.
• Do a check of the product before use. Refer to, Safety on page 4 and Maintenance on page 16. Do not use a defective product. Do the safety checks, maintenance and service instructions described in this manual.

• Faulty cutting attachment can increase the risk of accidents.

• Check the gear for dirt and cracks. Clean off grass and leaves from the gear using a brush. Gloves should be worn when necessary.

• Always ensure that ventilation openings are kept clear of debris.
• Check that the trimmer head is completely attached to the trimmer.
• All covers, guards and handles must be fitted before starting.
• Check that the product is in perfect working order. Check that all nuts and screws are tight.
• Check that the trimmer head and trimmer guard are not damaged or cracked. Replace the trimmer head or trimmer guard if it has been exposed to impact or are cracked. Always use the recommended guard for the cutting attachment you are using. See chapter on Technical data.
• This product is a dangerous tool if you are not careful or if you use the product incorrectly. This product can cause serious injury or death to the operator or others.
• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
• Never allow children to use or be in the vicinity of the machine. Since the machine is easy to start, children may be able to start it if they are not kept under full surveillance. This can mean a risk of serious personal injury. Therefore disconnect the battery when the machine is not under close supervision.
• Never allow children or other persons not trained in the use of the product and/or the battery to use or service it.
• National or local regulations may regulate the use. Comply to given regulations.
• Store the equipment in a lockable area so that it is out of reach of children and unauthorized persons.
• The transport guard must always be used for storage and transport.
• Keep hands and feet away from the cutting area at all times and especially when switching on the motor.
• Keep your hands and feet away from the cutting attachment until it has stopped completely when the product is deactivated.
• Do not remove the cut material, or let other persons remove cut material, while the product is activated or the cutting equipment rotates, as this can result in serious injury.
• Keep in mind that it is you, the operator that is responsible for not exposing people or their property to accidents or hazards.
• Under no circumstances may the design of the product be modified without the permission of the

manufacturer. Always use original 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 accessories or replacement parts.

• The only accessories you can operate with this product are the cutting attachments recommended in the technical data chapter.
• Never use a product that has been modified in any way from its original specification
• Never use a product 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.
• Working in bad weather is tiring and often brings added risk. Due to the added risk, it is not recommended to use the machine in very bad weather, for instance in dense fog, heavy rain, strong winds, intense cold, risk of lightning, etc
• Never work from a ladder, stool or any other raised position that is not fully secured.
• Store Idle Appliances Indoors – When not in use, appliances should be stored indoors
• It is not possible to cover every conceivable situation you can face. Always exercise care and use your common sense. Avoid all situations which you consider to be beyond your capability. If you still feel uncertain about operating procedures after reading these instructions, you should consult an expert before continuing.
• Ensure that no people or animals come closer than 15 meters while you work. When several operators are working in the same area the safety distance should be at least 15 metres. Otherwise there is a risk of serious personal injury. Stop the product immediately if anyone approaches. Never swing the product around without first checking behind you to make sure that no one is within the safety zone.
• If anything jams in the cutting attachment while you operate the product, stop and deactivate the product. Make sure that the cutting attachment stops completely. Remove the battery before you clean, inspect or repair the product and/or the cutting equipment.
• Ensure that people, animals or other things can not affect your control of the product or that they do not come in contact with the cutting attachment or loose objects that are thrown out by the cutting attachment. However, do not use the product unless you are able to call for help in the event of an accident.
• Make sure that you can move and stand safely. Check the area around you for possible obstacles (roots, rocks, branches, ditches, etcetera) in case you have to move suddenly. Take great care when you work on sloping ground.

• Walk, never run.

• Inspect the working area. Remove all loose objects, such as stones, broken glass, nails, steel wire, string etc. that could be thrown out or become wrapped around the cutter or cutter guard.

• Watch out for stumps of branches that can be thrown out when you cut. Do not cut to close to the ground where stones and other objects can be thrown out.
• Make sure that no clothes or parts of the body come in contact with the cutting attachment when the product is activated. Keep the product below waist level.
• Watch out for thrown objects. Always wear approved eye protection. Never lean over the cut-ting attachment guard. Stones, rubbish, etc., can be thrown up into the eyes which can cause blindness or serious injury.
• Listen out for warning signals or shouts when you wear hearing protection. Always remove your hearing protection as soon as the product stops.
• If any unwanted vibrations occur, tap out new line to give the line the correct length to stop the vibrations.
• If the product starts vibrating abnormally, stop the product and remove the battery.
  • Overexposure to vibration can lead to circulatory damage or nerve damage in persons who have poor circulation. Speak to your physician if you experience 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 usually show in the fingers, hands or wrists.
  • Always hold the product with both hands. Hold the product on the right side of your body.

Bluetooth®

CAUTION: Changes or modifications made to this equipment not expressly approved by Husqvarna may void the FCC authorization to operate this equipment.

Notice: This device complies with Part 15 of FCC Rules and with Innovation, Science and Economic Development Canada licence-exempt RSS standard. Operation is subject to the following two conditions:

• This device may not cause harmful interference
- This device must accept any interference received, including interference that cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This product meets the applicable Innovation, Science and Economic Development Canada technical specifications.

Suppliers Declaration of Conformity for Husqvarna525iLST

Responsible Party

Husqvarna Professional Product, Inc.

9335 Harris Corners Parkway

Charlotte, NC 28269

United States

Telephone: [phone]

E-mail: http://www.husqvarna.com/us/support/e-mail/

Personal protective equipment

WARNING: Read the warning instructions that follow before you use the product.

• Always use approved personal protective equipment when you use the product. Personal protective equipment cannot fully prevent injury but it decreases the degree of injury if an accident does occur. Let your dealer help you select the correct equipment.
- Use a helmet if the trees in the work area have a height of more than 2 m/6.5 ft.
- Use approved hearing protection.
• Always use approved protective googles that comply with ANSI Z87.1 standard in the USA or EN 166 in

EU countries. Use visor for face protection. Visor is not enough to protect the eyes.

Symbol combining a person wearing sunglasses and a helmet with plus sign, likely representing a safety or workplace hazard.

• Use gloves when it is necessary, for example when you attach, examine or clean the cutting equipment.
• Use protective boots with steel toe-cap and non-slip soles.
• Use clothing made of a strong fabric. Always use heavy, long pants and long sleeves. Do not use loose clothing that can catch on twigs and branches. Do not use jewelry, short pants or sandals. Do not go with bare feet. Put your hair up safely above shoulder level.

- Keep first aid equipment near.

Safety devices on the product

WARNING: Read the warning instructions that follow before you use the product.

In this section the product's safety features, its purpose and how checks and maintenance should be carried out to ensure that it operates correctly. See instructions under the heading Product overview on page 2 to find where these parts are located on your product.

The life span of the product can be reduced and the risk of accidents can increase if product 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 servicing dealer.

WARNING: Never use a product with defective safety components. The product's safety equipment must be inspected and maintained as described in this section. If your product fails any of these checks, contact your service agent to get it repaired.

CAUTION: 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.

To do a check of the power trigger lockout

The power trigger lockout is designed to prevent accidental operation. When you push the power trigger lockout forward (A) and then press the power trigger lockout against the handle (B), the power trigger (C) is released. When you release the handle, the power trigger and the power trigger lockout both move back to their original positions. This movement is operated by three independent springs.

Diagram of a device with labeled parts A, B, and C indicating directional movement or assembly steps.

1. Make sure that the power trigger is locked when the lock is in its original position.

Line drawing of a handheld device with a scroll and lever mechanism, showing motion direction (no text or symbols)

1. Push the power trigger lockout forward (A) and down. Hold the power trigger lockout against the handle (B) and make sure that it returns to its original position when you release it.

Diagram of a handheld device with labeled parts A and B, showing directional arrows indicating movement or force.

1. Make sure that the power trigger and the power trigger lockout moves freely and that the return springs operate properly.

Diagram of a handheld device with directional arrows indicating motion or force (no text or symbols)

1. Start the product, refer to To start the product on page 14.
2. Push the power trigger fully to apply full speed.
3. Release the power trigger and make sure that the cutting attachment stops and remains still.

To do a check of the user interface

1. Press and hold the start/stop button (A).

a) The product is on when the display (B) comes on.

A B

b) The product is off when the display goes off.

1. If the warning indicator on the display is on or flashes, refer to Troubleshooting on page 18.

WARNING: Do not use a cutting attachment without an approved and correctly attached cutting attachment guard. Always use the recommended cutting attachment guard for the cutting attachment that you use, see Accessories on page 20. If an incorrect or faulty cutting attachment guard is attached, it can cause serious personal injury.

The cutting attachment guard stops objects that eject in the direction of the operator. The cutting attachment guard also prevents injuries that can occur if you touch the cutting attachment.

1. Stop the motor.
2. Do a visual check for damages, for example cracks.
3. Replace the cutting attachment guard if it is damaged.

Trimmer head

• Always use the correct trimmer head, cutting attachments and always use the recommended trimmer line. Refer to Accessories on page 20 and the assembly in the end of the Manual.
• Make sure that the cutter on the trimmer guard is not damaged.
• Make sure that the trimmer line is wound tightly and equally around the drum to prevent unusual vibrations from the product. Different cord lengths can result in vibrations that are not necessary. Tap the trimmer head to get correct length on the cord.

To increase the life of the cord it can be soaked in water for 2 days or more before assembly. This will make the cord more resistant.

Safety instructions for assembly

WARNING: Read this power unit manual together with approved accessory manual.

• Remove the battery from the product before you assemble the product.
• Use approved protective gloves.
• A defective or incorrect guard can cause injury. Do not use a cutting attachment that does not have an approved guard attached.
• Make sure that you assemble the cover and shaft correct before you start the product.
• If a harness is supplied with the attachment, the harness must be correctly attached to the product. The harness makes operation safe and prevents injury to the operator or other persons.

Safety instructions for maintenance

WARNING: Read the warning instructions that follow before you do maintenance on the product.

• Remove the battery before you do maintenance, other checks or assemble the product.
• The operator must only do the maintenance and servicing shown in this operator's manual. Turn to your servicing dealer for maintenance and servicing of a larger extension.
• Do not clean the battery or the battery charger with water. Strong detergent can cause damage to the plastic.
• If you do not do maintenance, it decreases the life cycle of the product and increases the risk of accidents.
• Special training is necessary for all servicing and repair work, especially for the safety devices on the product. If not all checks in this operator's manual are approved after you have done maintenance, turn to your servicing dealer. We guarantee that there are professional repairs and servicing available for your product.
• Only use original spare parts.
  • Always use heavy duty gloves when you repair the cutting attachment. The blades are very sharp and can easily cause injuries.

SAVE THESE INSTRUCTIONS

Assembly

To assemble the loop handle

1. Attach the loop handle onto the shaft between the arrows. Do not place loop handle or suspension ring on label.

Technical line drawing of a mechanical clamp assembly with no visible text or symbols

1. Move the spacer into the slot of the loop handle.
2. Attach the nut, the knob and the screw, do not make it to tight.
3. Adjust the product to a comfortable position.
4. Tighten the bolt.

To assemble the cutting equipment

The cutting equipment includes a cutting attachment and a cutting attachment guard.

WARNING: Stop the product and remove the battery. Use protective gloves.

WARNING: Always use the cutting attachment guard that is recommended for the cutting attachment. See Accessories on page 20.

WARNING: An incorrectly attached cutting attachment can result in injury or death.

To attach the cutting attachment guard

1. Attach the cutting attachment guard (A) to the hook on the plate holder (B).

Technical diagram showing mechanical assembly with labeled parts A, B, and C, including a hanging component and a foot.

1. Install the cutting attachment guard on the shaft and tighten it with the bolt (C).

To remove the cutting attachment guard

- Loosen the bolt (C) and remove the cutting attachment guard (A) from the shaft.

Technical diagram showing mechanical assembly with labeled parts A and C, including a pulley system and a component in view.

To attach the trimmer head

1. Make sure that the cutting attachment guard (A) is attached to the product. Refer to To attach the cutting attachment guard on page 12.

A B C D

1. Make sure that the drive disc (C) is attached to the output shaft (D).
2. Put the locking pin (B) in the hole to lock the shaft.

3. Put the trimmer head (E) on the output shaft.

4. Turn the trimmer head (E) counterclockwise to tighten it to the output shaft.

Technical line drawing of a mechanical component with labeled point E and directional arrow (no text or symbols beyond labels)

1. Remove the locking pin.

Operation

Introduction

WARNING: Read and understand the safety chapter before you use the product.

Husqvarna Fleet Services™

Husqvarna Fleet Services ^™ is a cloud solution that gives the commercial fleet manager an overview of all products. Husqvarna Fleet Services ^™ can be added to 525iLST. For more information about Husqvarna Fleet Services ^™ , refer to www.husqvarna.com.

Bluetooth® wireless technology

Products with built-in Bluetooth ^® wireless technology can connect to mobile devices and enables additional functions.

The symbol for Bluetooth® wireless technology comes on when your mobile device is connected to the product.

To connect to the product with Husqvarna Fleet Services™

1. Download the Husqvarna Fleet Services ^TM app to your mobile device.
2. Log on to the Husqvarna Fleet Services ^TM app.
3. Follow the instructions about how to pair the product with Husqvarna Fleet Services™.

To connect the battery to the product

WARNING: Only use Husqvarna original batteries with the product.

1. Make sure that the battery is fully charged.
2. Push the battery into the battery holder of the product. The battery locks into position when you hear a click.

Technical illustration of a mechanical component with an arrow indicating assembly or transformation (no text or symbols present)

CAUTION: If the battery does not move easily into the battery holder, the battery is not installed correctly. This can cause damage to the product.

1. Make sure that the battery is installed correctly.

Work position

• Hold the product with 2 hands.
• Hold the product on the right side of your body.
• Keep the cutting attachment below waist level.
• Keep body parts away from the hot surfaces.

- Keep body parts away from the cutting attachment.

Before you operate the product

• Examine the work area to make sure that you know the type of terrain. Examine the slope of the ground and if there are obstacles such as stones, branches and ditches.
• Do a general inspection of the product.
• Do the safety inspections, maintenance and servicing that are given in this manual.
• Examine the motor for dirt or cracks. Use a brush to clean the motor from grass and leaves. Use gloves when it is necessary.
• Examine the trimmer head and cutting attachment guard for damages or cracks. Replace the trimmer head and cutting attachment guard if they are hit or if they have cracks.
  • Make sure that all nuts and screws are tight.
• Make sure that all covers, guards, handles and the cutting equipment are correctly attached and not damaged before you start the product.

To start the product

1. Put the product in the start position.
2. Push and hold the start button until the green LED comes on.

Diagram of a car air conditioner control panel with labeled buttons and indicator lights

1. Use the power trigger to control the speed.

To limit the maximum speed with the mode button

The product has a mode button. With the mode button the operator can limit the maximum speed. The mode button has 3 speed levels. A lower level increases the time of operation for the product. The mode button has 3 speed levels. A lower level increases the time of operation for the product. Use level 1 and level 2 if the operation does not require full speed/full power. If the operation condition requires full speed/full power, use level 3. Do not use a higher level than necessary for the operation.

1. Push the mode button to set a limit to the maximum speed. The white LEDs comes on to show that the function is on.

Diagram of a car air conditioner panel with labeled buttons and indicators

1. Push the Mode button again to choose the next speed level.

Automatic shutdown function

The product has a shutdown function that stops the product if the product is not used. The green LED for start/stop indication goes off and the product stops after 180 seconds.

Grass trimming with a trimmer head

To trim the grass

1. Hold the trimmer head immediately above the ground at an angle.

Simple line drawing of a grassy field with a flatbed tool (no text or symbols)

Do not push the grass trimmer line into the grass.

1. Decrease the length of the grass trimmer line by 10-12 cm (4-4.75 in) and decrease the motor speed to decrease the risk of damage to plants.

2. Use 80 % speed when you cut grass near objects.

Line drawing of a manual lawn tool sweeping grass, no text or symbols present

To cut the grass

1. Make sure that the grass trimmer line is parallel to the ground when you cut.

Simple line drawing of a grassy field with a vertical pole and base (no text or symbols)

1. Do not push the trimmer head to the ground. The ground and the product can be damaged.

2. Do not let the trimmer head touch the ground continuously, it can cause damage to the trimmer head.

3. Use full speed when you move the product from side to side to cut grass.

Diagram of a hand holding a pole with a dashed arrow indicating direction (no text or symbols)

Make sure that the grass trimmer line is parallel to the ground.

To sweep the grass

The airflow from the rotating trimmer line can be used to remove cut grass from an area.

1. Hold the trimmer head and the trimmer line parallel to the ground and above the ground.

2. Apply full speed.

3. Move the trimmer head from side to side and sweep the grass.

WARNING: Clean the trimmer head cover each time you assemble new trimmer line to prevent unbalance and vibrations in the handles. Also do a check of the other parts of the trimmer head and clean it if necessary.

To stop the product

1. Release the power trigger or the power trigger lockout.

2. Put the product in the stop position.

3. Push the stop button. 4. Push the release buttons on the battery and pull the

Diagram of a car air conditioner control panel with labeled buttons and indicators

Technical illustration of a mechanical component with directional arrows indicating assembly or movement (no text or symbols present)

Maintenance

Introduction

WARNING: Before you do any maintenance work you must read and understand the safety chapter.

The following is a list of the maintenance steps that you must do on the product. See Safety instructions for maintenance on page 11 for more information.

Maintenance schedule

WARNING: Remove the battery before you do maintenance.

Maintenance Daily Weekly Monthly
Clean the external parts of the product with a dry cloth. Do not use water. X
Examine that the start and stop button works correctly and is not damaged. X
Make sure that the power trigger and the power trigger lockout function correctly from a safety point of view.	X
Make sure that all controls work and are not damaged. X
Keep the handles dry, clean and free from oil and grease. X
Make sure that the cutting attachment is not damaged. Replace the cutting attachment if it is damaged.	X
Make sure that the cutting attachment guard is not damaged. Replace the cutting attachment guard if it is damaged.	X
Make sure that the screws and nuts are tight. X
Make sure that the battery release buttons on the battery works and locks the battery in the product.	X
Examine that the battery charger is not damaged and function correctly. X
Make sure that the battery is not damaged. X
Make sure that the loop handle is not damaged and attached correctly. X
Make sure that the blade is correctly centered, is sharp, and not damaged. An off-center blade will cause vibration that could result in damage to the product.	X
Make sure that the locknut of the cutting equipment is tightened correctly. X
Make sure that the transport guard for the blade is not damaged and that the transport guard can be attached correctly.	X
Examine all couplings and connections. Make sure they are not damaged and free from dirt.		X
Make sure that the bevel gear is filled correctly with grease, refer to To lubricate the bevel gear on page 17. If not, use Husqvarna bevel gear grease.		X
Lubricate the drive shaft end in the lower shaft coupling. X
Make sure that the air intake of the motor is not dirty. Clean the air intake with compressed air.		X
Do a check of the connections between the battery and the product. Do a check of the connection between the battery and the battery charger.			X

To clean the product, the battery and the battery charger

1. Clean the product with a dry cloth after use.
2. Clean the battery and battery charger with a dry cloth. Keep the battery guide tracks clean.
3. Make sure that the terminals on the battery and the battery charger are clean before the battery is put in the battery charger or the product.

To lubricate the bevel gear

1. Remove the cutting equipment.
2. Put the product with the grease plug at its highest position.
3. Remove the grease plug.

Technical line drawing of a mechanical component with threaded end and central hub (no text or symbols)

1. Look into the grease plug hole and turn the drive shaft. The grease level (A) must be in level with the top of the gear cogs (B).

A B

1. If the grease level is too low fill the bevel gear with Husqvarna bevel gear grease. Fill slowly and turn the drive shaft as you apply the bevel gear grease, stop at the correct level (B).

CAUTION: An incorrect quantity of grease can cause damage to the bevel gear.

1. Install the grease plug.

Troubleshooting

User interface

LED display Possible faults Possible	action
Battery LED indicator flashes or-ange	Low battery voltage. Charge the battery.
Red error LED flashes Overload.	The cutting attachment is jammed. de- vate the product. Remove the battery. Clean the cutting attachment from unwanted mate- rials.
	Temperature deviation. Let the pro-duct cool down.
	The power trigger and the acti- vate button are pressed at the same time.	Release the power trigger and the product is active.
The product does not start Dirt in the battery connectors. Clean the bat- tery connectors with com-pressed air or a soft brush.
Error LED is lit with red light The p- product needs servicing. Contact your servicing agent.

Transportation, storage and disposal

Transportation and storage

• The supplied Li-ion batteries obey the Dangerous Goods Legislation requirements.
• Obey the special requirement on package and labels for commercial transportation, including by third parties and forwarding agents.
• Speak to a person with special training in dangerous material before you send the product. Obey all applicable national regulations.
• Use tape on open contacts when you put the battery in a package. Put the battery in the package tightly to prevent movement.
• Remove the battery for storage or transportation.
• Put the battery and the battery charger in a space that is dry and free from moisture and frost.
• Do not keep the battery in an area where static electricity can occur. Do not keep the battery in a metal box.
• Put the battery in storage where the temperature is between 5^ (41 °F) and 25^ (77 °F) and away from open sunlight.
• Put the battery charger in storage where the temperature is between 5^ (41°F) and 45^ (113°F) and away from open sunlight.

• Use the battery charger only when the surrounding temperature is between 5^ (41°F) and 40^ (104°F).

• Charge the battery 30% to 50% before you put it in storage for long periods.

• Put the battery charger in storage in a space that is closed and dry.
• Keep the battery away from the battery charger during storage. Do not let children and other not approved persons to touch the equipment. Keep the equipment in a space that you can lock.
• Clean the product and do a full servicing before you put the product in storage for a long time.
• Use the transportation guard on the product to prevent injuries or damage on the product during transportation and storage.
• Attach the product safely during transportation.

Disposal of the battery, battery charger and product

Symbols on the product or the package of the product means that the product is not domestic waste. Recycle it at a recycling station for electrical and electronic equipment. This helps to prevent damage to the environment and to persons.

Get in touch with your local authorities, domestic waste service or your dealer for more information about how to recycle your product.

Technical data

Technical data

	525iLST
Motor
Motor type Husqvarna e-torq BLDC
Speed of output shaft. Trimmer head/blade, n_0	5500/7200
Cutting width, mm/in 460/18.1
Weight
Weight without battery, kg/lb 3.4/7.5
Noise emissions
Sound power level, measured dB (A) 92
Sound power level, guaranteed L_WA dB (A) 96
Noise levels^1
Sound pressure level at the operator's ear, measured according to IEC 62841-1:
Equipped with trimmer head (original) dB (A) 80
Vibration levels^2
Vibration levels at handles, measured according to IEC 62841-1, m/s^2
Equipped with trimmer head (original), Front/Rear, m/s^2	2.7/2.5
Radio frequency data for Bluetooth®
Frequency band, GHz 2.4–2.4835
Output power, max dBm 0 0

Approved batteries

Battery	BLi300
Type Lithium-ion
Battery capacity, Ah 9.4
Nominal voltage, V 36
Weight, kg (lb) 1.9 (4.2)

Approved battery chargers

Battery charger QC500
Input voltage, V 100-240
Frequency, Hz 50-60
Power, W 500

Accessories

Accessories

Approved accessories	Accessory type Cutting attachment guard, art.	no.
Centre hole in blades/knives, ∅ 25.4 mm
Output shaft thread M10
Trimmer head T35, T35x (∅2.4-∅2.7 mm trimmer line) 588 54 37-03
Grass blades	3T (∅255), Attachment kit J-handle 538 90 87-02
	4T (∅255), Attachment kit J-handle 538 90 87-02

Registered trademarks

The Bluetooth ^® word mark and logos are registered trademarks owned by Bluetooth SIG, inc. and any use of such marks by Husqvarna is under license.

Contenido

Exploded view diagram of a mechanical device with numbered parts for identification

Husqvarna Professional Product, Inc.

9335 Harris Corners Parkway

Charlotte, NC 28269

Estados Unidos

Symbolic image showing a person wearing sunglasses next to a helmet and a gear, indicating positive correlation or association.

Diagram of a handheld device with labeled parts A, B, and C indicating different components or functions.

Line drawing of a handheld device with a scroll and lever mechanism (no text or symbols)

Diagram of a device with labeled parts A and B, showing directional arrows indicating movement or force.

Line drawing of a handheld device with directional arrows indicating motion or force (no text or symbols)

Technical line drawing of a mechanical clamp assembly with no visible text or symbols

Technical diagram showing mechanical assembly with labeled parts A, B, and C, including a droplet impact on the component.

Technical diagram showing mechanical assembly with labeled parts A and C, including a component labeled C and a detail view.

Technical line drawing of a mechanical component with labeled point E and directional arrow (no text or symbols beyond labels)

Technical illustration of a car body panel with an inset showing a device component (no text or symbols present)

Diagram of a device control panel with labeled buttons and indicators, showing a directional arrow pointing to the bottom panel.

Diagram of a car air conditioner panel with labeled buttons and indicators

Simple line drawing of a grassy field with a small tool, no text or symbols present

Line drawing of a grassy field with a small tool and a long-handled tool, no text or symbols present

Simple line drawing of a grassy field with a vertical pole and base, no text or symbols present.

Illustration of a hand holding a circular object with a long rod, connected to a rotating wheel with an arrow indicating direction (no text or symbols)

Diagram of a car air conditioner control panel with labeled buttons and indicator lights

Technical illustration of a mechanical component with directional arrows indicating assembly or movement (no text or symbols present)

Mantenimiento

Introducción

Technical line drawing of a mechanical component with threaded end and central hub (no text or symbols)

Exploded view diagram of a mechanical device with numbered parts for identification and assembly reference.

Husqvarna Professional Product, Inc.

9335 Harris Corners Parkway

Charlotte, NC 28269

États-Unis

Téléphone : [phone]

Courriel : http://www.husqvarna.com/us/support/e-mail/

Diagram of a device with labeled parts A, B, and C indicating directional movement or assembly.

Line drawing of a handheld device with a scroll and lever mechanism, showing motion arrows (no text or symbols)

Diagram of a device with labeled parts A and B, showing directional arrows indicating movement or force.

Illustration of a handheld device with directional arrows indicating motion or force (no text or symbols)

Technical line drawing of a mechanical clamp assembly with no visible text or symbols

Technical diagram showing mechanical assembly with labeled parts A, B, and C, including a hanging component and directional arrow indicating motion.

Technical diagram showing mechanical assembly with labeled parts A and C, including a component being inserted into a housing.

Technical line drawing of a mechanical component with labeled point E and directional arrow (no text or symbols beyond labels)

Technical illustration of a mechanical component with an arrow indicating assembly or transformation (no text or symbols present)

Diagram of a car air conditioner control panel with labeled buttons and indicators

Diagram of a car air conditioner control panel with labeled buttons and indicators

Simple line drawing of a grassy field with a tool, no text or symbols present

Simple line drawing of a grassy field with a tool and a small object, no text or symbols present.

Pour couper l'herbe

Simple line drawing of a grassy field with a vertical pole and base, no text or symbols present.

Diagram of a hand holding a mechanical lever with a dashed arrow indicating motion direction (no text or symbols)

Diagram of a car air conditioner panel with labeled buttons and indicators, showing a directional arrow pointing to the bottom panel.

Diagram showing two mechanical components with directional arrows indicating movement or force (no text or symbols present)

Technical line drawing of a mechanical component with threaded end and central hub (no text or symbols)

Original instructions