W520i - Electric mower HUSQVARNA - Free user manual and instructions
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USER MANUAL W520i HUSQVARNA
Transportation, storage and disposal. 29
Operation 23
Technical data. 29
Introduction
Product description
The product is a pedestrian-controlled rotary lawn mower. The grass is collected in a grass catcher.
Remove the grass catcher to get rear discharge of the grass. Attach a mulch kit (accessory) to cut the grass into fertilizer.
Intended use
Use the product to cut grass. Do not use the product for other tasks.
Product overview
(Fig. 1)
- Control panel
- Motor brake handle
- Start inhibitor
- Grass catcher
- Rear cover
- Safety key
- Handle knob
- Battery cover
- Cutting height control
- ON/OFF button
- SavE button
- SavE indicator
- Battery indicator
- Speed level indicator
- Decrease speed button
- Increase speed button
- Error LED
- Cutting cover
- Air intakes
- Rating plate
- Drive bail
- Battery charger (Accessory)
- Battery (Accessory)
- Multi battery (Accessory)
- Adapter plate (Accessory)
- Multi battery adapter (Accessory)
- Operator's manual
Symbols on the product
(Fig. 2) WARNING: This product can be dangerous and
(Fig. 3)
cause serious injury or death to the operator or others. Be careful and use the product correctly.
Read the operator's manual carefully and make sure that you understand the instructions before you use this product.
(Fig. 4)
Keep hands and feet away from rotating blades.
(Fig. 5)
Keep persons and animals at a safe distance from the work area.
(Fig. 6)
Look out for thrown objects and ricochets.
(Fig. 7) Warning: Keep hands and feet away from the rotating blade.
(Fig. 8) Warning: Keep hands and feet away from rotating parts.
(Fig. 9) Before and while walking rearward, look behind and down for small children, animals or other risks that can cause you to fall.
(Fig. 10) Keep persons and animals at a safe distance from the work area.
(Fig. 11) Slope hazard.
(Fig. 12) Remove the safety key before you do repair work or maintenance.
(Fig. 13) Environmental mark.The product or package of the product is not domestic waste. Recycle it at an approved disposal location for electrical
and electronic equipment.
IPX4
Protected against splashing water.
(Fig. 18)
Start procedure: push ON/OFF button, loosen start inhibitor, push motor brake handle down.
(Fig. 14)
Release motor brake handle to stop.
(Fig. 15)
Slow.
(Fig. 16)
Fast.
(Fig. 17)
Scannable code.
Note: Other symbols/decals on the product refer to certification requirements for some markets.
Label on the product (Fig. 19)
Keep hands and feet away from the rotating blades.
Product liability
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.
Safe practices for pedestrian-controlled mowers
General information

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

WARNING: This product is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death.
- Read, understand, and follow instructions and warnings in this document, the operator's manual, on the product, on the engine/motor and on the attachments.
- Only allow operators who are responsible, trained, familiar with the instructions, and physically capable to operate the product.
- Do not carry passengers and keep bystanders away.
- Do not operate the product while under the influence of alcohol or drugs.
- Follow the manufacturer's recommendation for wheel weights or counterweights.
Preparation before operation

WARNING: Read the warning instructions that
follow before you use the product.
- Clear the operating area of any objects which could be thrown by or interfere with operation of the product.
- Keep the area of operation clear of all bystanders, particularly small children. Stop the product and attachment(s) if anyone enters the area.
- Do not operate the product without the entire grass catcher, discharge chute, or other safety devices in place and functioning properly. Check frequently for signs of wear or deterioration and replace as needed.
- Wear appropriate personal protective equipment such as safety glasses, hearing protection, and footwear.
Operation

WARNING: Read the warning instructions that follow before you use the product.
-
For gasoline engine products: Only operate the engine in well ventilated areas. Exhaust gases contain carbon monoxide, a deadly poison.
-
Only operate the product in daylight or in good artificial light.
- Avoid holes, ruts, bumps, rocks, or other hidden hazards. Uneven terrain could overturn the product, or cause the operator to lose their balance or footing.
- Do not put hands or feet near rotating parts or under the product. Keep clear of the discharge opening at all times.
- Do not direct discharge material toward anyone. Avoid discharging material against a wall or obstruction. Material may ricochet back toward the operator. Stop the blade(s) when crossing gravel surfaces.
- Do not leave a running product unattended. Always park on level ground, disengage the attachment, set parking brake, and stop the engine/motor.
- Do not mow in reverse unless it is absolutely necessary. Always look down and behind before and while reversing.
Children specific instructions

WARNING: Read the warning instructions that
follow before you use the product.
- Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the product and the mowing activity. Never assume that children will remain where you last saw them.
- Keep children out of the operating area and under the watchful care of a responsible adult other than the operator.
Slope specific instructions

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

WARNING: Slopes are a major factor related to accidents. Operation on slopes requires extra caution.
- Travel in the manufacturer recommended direction on slopes. Use caution while operating near drop offs.
-
Avoid mowing wet grass. Poor footing could cause a slip and fall accident.
-
Do not operate product under any condition where traction, steering, or stability is in question. Tires could slide even if the wheels are stopped.
- Always keep the product in gear when going down slopes. Do not coast downhill.
- Avoid starting and stopping on slopes. Avoid making sudden changes in speed or direction. Make turns slowly and gradually.
- Use extra care while operating product with a grass catcher or other attachment(s). They can affect the stability of the product.
Fire and Fuel specific information (for gasoline engine products)

WARNING: Read the warning instructions that follow before you use the product.
- Extinguish all cigarettes, cigars, pipes and other sources of ignition.
- Use only an approved fuel container.
-
Do not remove fuel cap or add fuel with the engine running or while hot.
-
Do not refuel indoors or in enclosed spaces.
- Do not store the product or fuel container, or refuel, where there is an open flame, spark, or pilot light such as on a water heater or other appliance.
- If fuel is spilled, do not attempt to start the engine and avoid creating any source of ignition until fuel vapors have dissipated.
- To help prevent fires: keep product free of grass, leaves, or other debris build up; clean up oil or fuel spillage and remove any fuel soaked debris; allow product to cool before storing.
- Use extra care in handling gasoline and other fuels. They are flammable and vapors are explosive.
Hauling

WARNING: Read the warning instructions that follow before you use the product.
- Use full width ramps for loading and unloading a product for transport.
Service

WARNING: Read the warning instructions that follow before you use the product.
- Keep product in good working order. Replace worn or damaged parts.
- Use caution when servicing blades. Wrap the blade(s) or wear gloves. Replace damaged blades. Do not repair or alter blade(s).
- Products with hydraulic pumps, hoses, or motors; and/or diesel injection systems:

WARNING: Fluid escaping under pressure may have sufficient force to penetrate skin and cause serious injury. If fluid is injected into the skin, seek immediate medical attention. Keep body and hands away from pin holes or nozzles that eject fluid under high pressure. If a leak occurs, have the product immediately
serviced by a trained technician.
- If equipped, disconnect spark plug wire(s) and the negative battery cable before making any repairs.
General safety instructions

WARNING: Read the warning instructions that follow before you use the product.
- This product is dangerous if used incorrectly or if you are not careful. Injury or death can occur if you do not obey the safety instructions.
- This product produces an electromagnetic field during operation. This field may under some circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury we recommend persons with medical implants to consult their physician and the medical implant manufacturer before operating this product.
- Always be careful and use your common sense. If you are not sure how to operate the product in a special situation, stop and speak to
your Husqvarna dealer before you continue.
- Keep in mind that the operator will be held responsible for accidents that involve other persons or their property.
- Keep the product clean. Make sure that you can clearly read signs and decals.
- Never allow children or people unfamiliar with these instructions to use the appliance. Local regulations may restrict the age of the operator
- Always monitor a person, with decreased physical capacity or mental capacity, that uses the product. A responsible adult must be there at all times.
- Do not use the product if you are tired, ill, or under the influence of alcohol, drugs or medicine. This has a negative effect on your vision, alertness, coordination and judgment.
- Do not use the product if it is defective.
- Do not change this product or use it if it is possible that it has been changed by others.
Work area safety

WARNING: Read the warning instructions that
follow before you use the product.
- Remove objects such as branches, twigs and stones from the work area before you use the product.
- Objects that hit against the cutting equipment can eject and cause damage to persons and objects. Keep bystanders and animals at a safe distance from the product.
- Never use the product in bad weather such as fog, rain, strong winds, intense cold and risk of lightning. To use the product in bad weather or in moist or wet locations is tiring. Bad weather can cause dangerous conditions, such as slippery surfaces.
- Look out for persons, objects and situations that can prevent safe operation of the product.
- Look out for obstacles, such as roots, stones, twigs, pits and ditches. Long grass can hide obstacles.
- To cut grass on slopes can be dangerous. Do not mow excessively steep slopes. Do not use the product on ground that slopes more than 15^
Exercise extreme caution when changing direction on
slopes. Operate the product across the face of slopes. Do not move up and down.
- Be careful when you go near hidden corners and objects that prevent a clear view.
Work safety

WARNING: Read the warning instructions that follow before you use the product.
- Use this product to cut grass lawns only. It is not permitted to use it for other tasks.
- Use personal protective equipment. Refer to Personal protective equipment on page 18.
- Make sure that you know how to stop the motor quickly in an emergency.
- Do not operate the product in rain or wet conditions. The risk of electrical shock increases if water enters the product.
- Do not operate the product unless the blade and all covers are attached correctly. An incorrectly attached blade can come loose and cause personal injury.
- Make sure that the blade does not hit objects such as stones and roots. This can do
damage to the blade and bend the motor shaft. A bent axle causes heavy vibration and a very high risk that the blade becomes loose.
- If the blade hits an object or if vibrations occur, stop the product immediately. Stop the motor, pull up the safety key and remove the battery.
Examine the product for damages. Repair damages or let an authorised service agent do the repair. - Never attach the motor brake handle permanently to the handle when the motor is started.
- Put the product on a stable, flat surface and start it. Make sure that the blade does not hit the ground or other objects.
Always stay behind the product when you operate it. - Let all the wheels stay on the ground and keep 2 hands on the handle when you operate the product. Keep your hands and feet away from the rotating blades.
- Do not tilt the product when the motor is started.
- Be careful when you pull the product rearward.
- Never lift up the product when the motor is started. If you
must lift the product, first stop the motor, pull up the safety key and remove the battery.
- Do not walk rearward when you operate the product.
- Stop the motor when you move across areas without grass, for example paths made of gravel, stone and asphalt.
- Do not run with the product when the motor is started. Always walk when you operate the product.
- Stop the motor before you change the cutting height. Never make adjustments with the motor started.
- Never let the product stay out of view with the motor started. Stop the motor and make sure that the cutting equipment does not rotate.
Safety instructions for operation Personal protective equipment

WARNING: Read the warning instructions that follow before 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 right equipment.
- Use heavy-duty slip-resistant boots or shoes. Do not use open shoes or go with bare feet.
- Use heavy, long pants.
- Use protective gloves when necessary, for example when you attach, examine or clean the cutting equipment.
Safety devices on the product

WARNING: Read the warning instructions that follow before you use the product.
- Do not use a product with defective safety devices.
- Do a check of the safety devices regularly. If the safety devices are defective, speak to your Husqvarna service agent.
To do a check of the cutting cover
The cutting cover decreases vibrations in the product and decreases the risk of injury from the blade.
- Examine the cutting cover to make sure that there are no damages such as cracks.
Safety key
The safety key is below the battery lid. The safety key connects the battery that supplies the motor with power.
To do a check of the safety key
The safety key connects the battery that supplies the motor with power.
- Start and stop the motor. If the safety key operates correctly, the motor can only start when the key is in the safety lock.
Motor brake handle
The motor brake handle stops the motor. When the motor brake handle is released, the motor stops.
To do a check of the motor brake, start the motor and then release the motor brake handle. If the motor does not stop in 3 seconds, let an approved Husqvarna service agent adjust the motor brake.
(Fig. 20)
To examine the start inhibitor
Do a check of the start inhibitor to make sure that it prevents operation of the motor.
- Push the motor brake handle in the direction of the handlebar. The start inhibitor stops the movement.
- Push the start inhibitor out. (Fig. 21)
- Release the start inhibitor and make sure that it goes back to its initial position.
Battery safety

WARNING: Read the warning instructions that follow before you use the product.
- Use Husqvarna rechargeable batteries as a power supply for related Husqvarna products only. To prevent injury, do not use the battery as a power supply for other devices.
- Do not use non-rechargeable batteries.
- Risk of electrical shock. Do not connect the battery terminals to keys, coins, screws or other metal. This can cause a short circuit of the battery.
- Do not put objects into the air slots of the battery.
- Keep the battery away from sunlight, heat or open flame. The battery can explode and
cause burns and/or chemical burns.
- Keep the battery away from rain and wet conditions.
- Keep the battery away from microwaves and high pressure.
- Do not try to disassemble or break the battery.
- If the battery leaks, do not let the liquid touch your body or eyes. If you have touched the liquid, clean the area with a large quantity of water and get medical aid.
- Use the battery in temperatures between -10^ and 40^ .
- Do not clean the battery or the battery charger with water. See To clean the battery and the battery charger on page 27.
- Do not use a defective or damaged battery.
- Keep batteries in storage away from metal objects such as nails, coins, jewellery.
Battery charger safety

WARNING: Read the warning instructions that follow before you use the product.
- Use the QC battery chargers to charge Husqvarna replacement batteries only.
- Risk of electrical shock or short circuit. Do not put objects into the air slots of the charger. Do not try to disassemble the battery charger. Do not connect the charger terminals to metal objects. Use an approved mains socket.
- This product produces an electromagnetic field during operation. This field may under some circumstances interfere with active or passive medical implants. To reduce the risk of serious or fatal injury, we recommend persons with medical implants to consult their physician and the medical implant manufacturer before operating this product.
- Regularly make sure that the power cord of the battery charger is not damaged and that there are no cracks in it.
- Do not lift the battery charger by the power cord. To disconnect the battery charger from a mains socket, pull out the plug. Do not pull the power cord.
- Keep the power cord and extension cables away from
water, oil and sharp edges.
Make sure that the cable is not pinched in doors, fences or equivalent. It can cause the charger to become energized.
- Do not clean the battery charger with water.
- The battery charger can be used by children aged from 8 years and above and persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the battery charger in a safe way and understand the hazards involved. Children shall not play with the battery charger. Cleaning and user maintenance shall not be made by children without supervision.
- Do not charge non-rechargeable batteries in the battery charger.
- Do not use the battery charger near flammable materials or materials that can cause corrosion. Do not cover the battery charger. Pull out the plug to the battery charger if there is smoke or fire.
-
Do not use a defective or damaged battery charger.
-
Only charge the battery indoors in a room with good airflow and away from sunlight. Do not charge the battery in wet conditions.
Safety instructions for maintenance

WARNING: Read the warning instructions that follow before you use the product.
- Remove the safety key before you do maintenance on the product.
- Do the maintenance work correctly to increase the lifetime of the product and decrease the risk of accidents. Let an approved service agent do the professional repairs. Speak to your nearest service agent for more information.
-
Only do the maintenance work written in this operator's manual.
-
Put on heavy duty gloves when you use the cutting equipment. The blade is very sharp and cuts can easily occur.
- Keep the cutting edges sharp and clean for the best and safest performance.
- Let your service agent regularly examine the product and make necessary adjustments and repairs.
- Replace damaged, worn or broken parts.
- Obey the instructions for how to change accessories. Only use accessories from the manufacturer.
- When not in operation, keep the product, battery and battery charger apart in a dry, indoor and locked area. Make sure that children and persons that are not approved cannot get access to the product, battery or battery charger.
Assembly
Introduction

WARNING: Read and understand the safety chapter before you assemble the product.
To install and remove the multi battery (accessory)
-
Remove the 4 rubber covers and the 4 screws from the motor cover. (Fig. 22)
-
Put the adapter plate onto the motor cover.
- Attach the adapter plate with the 4 supplied screws to a torque of 5-6 Nm. (Fig. 23)
- Open the battery hatch.
- Remove the battery in slot 1. (Fig. 24)
- Remove the seal stop. (Fig. 25)
- Push the battery adapter into the battery compartment until you hear a click. (Fig. 26)
-
Put the cord of the battery adapter through the seal stop hole. Attach the cord with the clip. (Fig. 27)
-
Install the multi battery onto the battery adapter.
- Connect the multi battery to the battery adapter. (Fig. 28)
- Attach battery adapter cord to the handle with the 3 fabric straps. (Fig. 29)
- Remove the multi battery in the opposite sequence.

WARNING: Do not attach the cord too loosely to the handle. The cord can come off the handle and cause injury.
To assemble the handle
- Loosen the lower knobs.
- Move the knobs to the lower end of the grooves on the left and the right side of the product. (Fig. 30)
- Set the handle height in one of the 2 available positions.
- Move the knobs up in the direction of the handle until they stop and you hear a click. (Fig. 31)
- Tighten the knobs fully.
To assemble the grass catcher
-
Attach the grass catcher frame to the grass bag with the rigid part of the bag on the bottom. Keep the handle of the frame on top of the grass bag. (Fig. 32)
-
Attach the bottom section of the grass catcher frame in the groove on the bottom of the grass catcher.
- Attach the grass bag to the grass catcher frame with the clips. (Fig. 33)
- Lift the rear cover.
- Attach the grass catcher to the top edge of the chassis.
- Put the lower part of the grass catcher into the grass discharge channel. (Fig. 34)
To assemble the mulch plug (accessory)
- Lift up the rear cover and remove the grass catcher.
- Put the mulch plug into the discharge channel. (Fig. 35)
- Replace the blade with the mulch blade that is supplied with the mulch kit. Refer to To replace the blade on page 26.
Operation
Introduction

WARNING: Before you operate the product, you must read and understand the safety chapter.
Husqvarna Connect
Husqvarna Connect is a free app for your mobile device. The Husqvarna Connect app gives extended functions for your Husqvarna product:
- Extended product information.
Information about, and help with, product parts and servicing.
To start to use Husqvarna Connect
- Download the Husqvarna Connect app on your mobile device.
- Register in the Husqvarna Connect app.
- Do the instruction steps in the Husqvarna Connect app to connect and register 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™ is included for the
W520i. For more information about Husqvarna Fleet Services ^TM , refer to www.husqvarna.com.
To prepare the sensor (accessory)
- Use the sensor key to open the lid of the sensor. (Fig. 36)
- Remove the sensor.
- Connect the battery to the sensor. The LED light of the sensor comes on. (Fig. 37)
- Download the Husqvarna Fleet Services ^M app.
- Log on to the Husqvarna Fleet Services ^TM app.
- Do a pairing operation. Refer to To do a pairing operation between the app and the product on page 23
To do a pairing operation between the app and the product
- Log on to the Husqvarna Fleet Services ^TM app.
- Select your product in the app.
- Scan the code behind the sensor with your mobile device to install the sensor in the app.
Note: It is only necessary to do a pairing operation between the app and the product one time.
To install the sensor
- Make sure that the sensor is connected to the Husqvarna Fleet Services™ app. Refer to To do a pairing operation between the app and the product on page 23.
- Drill 2 holes by the marks in the enclosure slot. (Fig. 38)
Note: Make sure that the holes are the same dimension as the rivets supplied with the sensor.
- Use a pair of pliers to remove the outer holes on the sensor slot. (Fig. 39)
- Drill 2 holes by the marks in the sensor slot. (Fig. 40)
- Align the sensor slot with the enclosure slot. (Fig. 41)
- Attach the sensor slot with the rivets.
- Install the sensor in the sensor slot. Align the white mark on the sensor with the mark on the sensor slot. (Fig. 42)
- Close the lid to the sensor and lock it with the sensor key. Make sure that the top of the Husqvarna "H" points away from the safety key. (Fig. 43)
To set the product in operation position
- Lift the handle to upright position. (Fig. 44)
- Move the knobs up in the direction of the handle until they stop and you hear a click. (Fig. 31)
- Tighten the knobs fully.
To set the cutting height
The cutting height can be adjusted in 6 levels.
- Push the cutting height control in the direction of the wheel and then rearward to increase the cutting height.
- Push the cutting height control in the direction of the wheel and then forward to decrease the cutting height. (Fig. 45)

CAUTION: Do not set the cutting height too low. The blades can hit the ground if the surface of the lawn is not level.
Battery

WARNING: Before you use the battery, you must read and understand the safety chapter. You must also read and understand the operator's manual for the battery and the battery charger.
Battery status
The display shows the remaining battery capacity and if there are problems with the battery. The battery capacity is shown for 5 seconds after the product is switched off
or the battery indicator button is pressed. The warning symbol on the battery is on when an error has occurred. See Battery on page 27.
(Fig. 46)
| LED lights Battery status | |
| All LEDs are lit Fully charged (75-100%) | |
| LED 1, LED 2, LED 3 are lit | The battery is 50%-75% charged |
| LED 1, LED 2 are lit The battery is 25%-50% charged | |
| LED 1 is lit The battery is 0%-25% charged. | |
| LED 1 flashes The battery is empty. Charge the battery. | |
To charge the battery
Charge the battery before the first use. The battery is only 30% charged when supplied to the customer.
Note: The battery charger must be connected to the voltage and frequency specified on the rating plate.
The battery does not charge if the battery temperature is above 50^ . The battery charger decreases the temperature of the battery before it starts to charge.
- Connect one end of the power cord for the battery charger into the socket of the battery charger.
- Connect the other end of the power cord for the battery charger in an grounded mains socket. The LED on the battery charger flashes green one time. (Fig. 47)
- Put the battery in the battery charger. The green light on the charger comes on when the battery is correctly connected to the battery charger. (Fig. 48)
- When all LEDs on the battery have come on the battery is fully charged. Charge the battery for maximum 24 hours.
- To disconnect the battery charger from the mains socket, pull the plug, not the power cord.
- Remove the battery from the battery charger.
Battery charging status
A Husqvarna Li-ion battery can be charged or used at all charging levels. The battery is not damaged. A fully charged battery will not decrease its charge when the battery is left in the charger.
| LED display | Charging status |
| LED 1 flashes 0%-25% | |
| LED 1 is lit, LED 2 flashes | 25%-50% |
| LED display Charging status | |
| LED 1, LED 2 are lit, LED 3 flashes | 50%-75% |
| LED 1, LED 2, LED 3 are lit, LED 4 flashes | 75%-100% |
| LED 1, LED 2, LED 3, LED 4 are lit | Fully charged |
To charge the multi battery
Note: Charge the battery if it is the first time that you use it. A new battery is only 30% charged.
- Make sure that the battery is dry.
- Connect the multi battery to the adapter. (Fig. 49)
- Put the adapter in the battery charger.
- Make sure that the green charging LED on the battery charger comes on. That means that the adapter and multi battery are connected correctly. (Fig. 50)
- When all LEDs on the battery come on and the adapter shows 100% the battery is fully charged. (Fig. 51) The adapter shows the state of charge in steps of 1% . Small deviations are possible at the start of the charge.
- To disconnect the battery charger from the mains socket, pull the plug. Do not pull the cable.
- Remove the adapter from the battery charger.
- Remove the multi battery from the adapter.
Note: Refer to the multi battery and battery charger manuals for more information.
To start the product
- Lift the battery lid.
- Put a charged battery in battery slot number 1 below the battery lid. For longer operation time, put a second charged battery in battery slot number 2.
- Disconnect the safety key from the safety key holder.
- Push the safety key into the safety lock. (Fig. 52)
- Stay behind the product.
- Push the ON/OFF button on the control panel. The display comes on.
- Loosen the start inhibitor. (Fig. 21)
- Push the motor brake handle in the direction of the handlebar. (Fig. 53)
To use the drive on the wheels
-
Pull the drive bail in the direction of the handlebar to start the drive. (Fig. 54)
-
Push + and - on the control panel to set the drive speed in 4 steps. (Fig. 55)
- Release the drive bail to disengage the drive, for example when you go near an obstacle.
To use the SavE function
The product has a battery saving function (SavE) that gives longer operation time.
- Push the SavE button (A) to start the function. The SavE symbol (B) on the display comes on.
- Push the SavE button again to stop the function. The SavE symbol (B) on the display goes out. (Fig. 56)
The SavE function stops automatically if the ground conditions make it necessary to have a higher output. The SavE function starts automatically again when the ground conditions let it.
PowerBoost function
When the product cuts long or wet grass, the motor automatically increases rpm. To save battery time, the motor goes back to standard mode automatically when the PowerBoost function is not necessary.
To stop the product
The product stops automatically if you do not operate it for 3 minutes.
- Release the motor brake handle to stop the motor. (Fig. 20)
- Push the ON/OFF button on the control panel. All LED lights and symbols on the display go out. (Fig. 57)
- Remove the safety key from the safety lock and put it in the safety key holder.
To get a good result
- Always use a sharp blade. A blunt blade gives an irregular result and the cut surface of the grass becomes yellow. A sharp blade also uses less energy than a blunt blade.
- Do not cut more than 13 of the length of the grass. Cut first with the cutting height set high. Examine the result and lower the cutting height to an applicable level. If the grass is very long, drive slowly and cut 2 times if necessary.
- Cut in different directions each time to prevent stripes in the lawn.
To cut grass without a grass catcher or mulch plug attached
- Lift up the rear cover and remove the grass catcher.
- If a mulch plug and a mulch blade are attached, remove them.
- Close the rear cover before you operate the product.
Maintenance
Introduction

WARNING: Before you do maintenance, you must read and understand the safety chapter.
For all servicing and repair work on the product, special training is necessary. We guarantee the availability of professional repairs and servicing. If your dealer is not a
service agent, speak to them for information about the nearest service agent.
Maintenance schedule
The maintenance intervals are calculated from daily use of the product. The intervals change if the product is not used daily.
For maintenance identified with *, refer to Safety instructions for operation on page 18.
| Each use | Monthly | Each season | |
| Do a general inspection X | |||
| Clean the transmission covers. Make sure that the motor does not have grass on it | X | ||
| Do a check of the start inhibitor * X | |||
| Make sure that the safety devices on the product are not defective * X | |||
| Check the grass catcher for wear or deterioration X | |||
| Examine the cutting equipment X | |||
| Examine the cutting cover * X | |||
| Do a check of the motor brake handle * X | |||
| Make sure that the ON/OFF button operates correctly and is not defective X | |||
| Examine the battery for damage X | |||
| Do a check of the battery charge X | |||
| Make sure that the release buttons on the battery operates correctly and that the battery locks into the product | X | ||
| Clean the air intakes. Make sure that the air intakes does not have grass or dirt on them | X | ||
| Examine the battery charger for damage and make sure that it operates correctly | X | ||
| Clean below the clutch cover X | |||
| Examine the connections between the battery and the product. Also examine the connection between the battery and the battery charger | X |
To do a general inspection
- Make sure that the nuts and screws on the product are tightened.
- Make sure that the cables on the product are not in a position where they can get damaged.
To replace the blade
-
Lock the blade with a block of wood. (Fig. 58)
-
Remove the blade bolt, the spring washer and the blade. (Fig. 59)
- Examine the blade support and blade bolt for damages.
a) If you replace the blade or the blade support, also replace the blade bolt, the spring washer and the friction washer.
- Examine the motor shaft to make sure that it is not bent.
- When you attach the new blade, make sure that the bent ends point in the direction of the cutting cover. (Fig. 60)
- Put the friction washer and the blade against the blade support. (Fig. 61)
- Make sure that the blade aligns with the center of the motor shaft. (Fig. 62)
- Lock the blade with a block of wood. (Fig. 63)
- Attach the spring washer and tighten the bolt with a torque of 65-75 Nm. (Fig. 64)
- Pull the blade around by hand and make sure that it turns freely.

WARNING: Use protective gloves.
The blade is very sharp and cuts can easily occur.
- Start the product to do a test of the blade. If the blade is not correctly attached, there is vibration in the product or the cutting result is unsatisfactory.
To clean the product
- Clean plastic parts with a clean and dry cloth.
- Do not use water to clean the product. Water can enter the battery or the motor and cause short circuit or damage to the product.
- Do not use a high pressure washer to clean the product.
- Do not flush water directly on the motor.
- Use a brush to remove leaves, grass and dirt.
- Remove the clutch cover, use a brush to remove grass below the clutch cover.
To clean the battery and the battery charger

CAUTION: Do not clean the battery or the battery charger with water.
- Make sure that the battery and the battery charger are clean and dry before you put the battery into the battery charger.
- Clean the battery terminals with compressed air or use a soft and dry cloth.
- Clean the surfaces of the battery and the battery charger with a soft and dry cloth.
To examine the cutting equipment

WARNING: To prevent accidental start, pull up the safety key, remove the battery and wait a minimum 5 seconds.

WARNING: Use protective gloves when you do maintenance on the cutting equipment. The blade is very sharp and cuts can easily occur.
- Examine the cutting equipment for damage or cracks. Always replace a damaged cutting equipment.
- Look at the blade to see if it is damaged or blunt.
Note: It is necessary to balance the blade after it is sharpened. Let a service center sharpen, replace and balance the blade. If you hit an obstacle that causes the product to stop, replace the damaged blade. Let the service center estimate if the blade can be sharpened or must be replaced.
Troubleshooting
Battery
| LED on the battery Possible faults Possible procedure | ||||
| The green LED is flashing | The battery voltage is low Charge the battery. See page 24. | To charge the battery on | ||
| The error LED flashes The battery is weak Charge the battery. See Battery on page 27. | ||||
| The temperature in the work environ-ment is too high or too low | Use the battery in temperatures between -10°C and 40°C. | |||
| Overvoltage Check that the mains voltaga is the same as onthe rating plate on the product. | ||||
| Remove the battery from the battery charger. Wait 5 seconds and try again to charge the battery. If the problem continues, speak to an authorised service agent. | ||||
| The error LED is on Cell difference too much (1V) Speak to an approved service agent. | ||||
Battery charger
| LED on the battery charger | Possible faults Possible procedure | |
| The error LED flash- es | The temperature in the work en- vvironment is too high or too low | Use the battery charger in temperatures between 5°C and 40°C. |
| The error LED is on Sp | speak to an approved service agent |
Control panel
| Error code (Number of flashes) | Possible faults Possible procedure | |
| 1 The transmission motor is too hot. Let the product become cool. Make sure that the transmission does not have grass on it. Clean the transmission cover if it is necessary. | ||
| 5 The motor speed decreases too much, and the motor stops. | Clean the cutting deck and increase the cutting height. Refer to To set the cutting height on page 24. If the error stays, speak to your approved service agent. | |
| 8 The battery is weak. Charge the battery. Refer to | To charge the battery on page 24. | |
| 9 Battery error or no signal from battery. Put the battery in the product | correctly and examine the battery connector. If the error LED on the battery flashes, refer to Battery on page 24. | |
| 10 The motor control is too hot. Stop the motor and wait until it is cool. | ||
| Other errors | If other errors occur, remove the safety key and the battery and speak to an approved service agent. | |
Transportation, storage and disposal
Introduction

WARNING: To prevent unintentional start during transport pull up the safety key, remove the battery and wait at least 5 seconds.
To set the product in transport position
- Loosen the lower knobs.
- Move the knobs to the lower end of the grooves on the left and the right side of the product. (Fig. 30)
- Fold the handle forward. (Fig. 65)
- Remove the grass catcher.
Transportation
- The Dangerous Goods Legislation requirements apply to the contained Li-ion batteries.
- For commercial transports special requirements on package and labels must be obeyed.
- Make sure that you obey the regulations for dangerous material when you prepare the product for transport. Local regulations can apply.
- Always remove the battery for transport.
- Put tape on the battery connectors and make sure that the battery cannot move around during transport.
- Attach the product during transport.
Storage
- Always remove the battery for storage.
-
To prevent accidents, make sure that the battery is not connected to the product during storage.
-
Keep the battery charger in a closed and dry space.
- Keep the battery and the battery charger in a dry space where there is no moisture or frost.
- Disconnect the battery from the battery charger during storage.
- Do not keep the battery where static electricity can occur. Do not keep the battery in a metal box.
- Keep the battery where the temperature is between 5^ and 25^ and out of sunlight.
- Keep the battery charger where the temperature is between 5^ and 45^ and out of sunlight.
Make sure that the battery is charged to 30% - 50% before you put it in storage for long periods. - Keep the product, battery and battery charger in a locked area out of reach for children and not approved persons.
- Clean the product and do a complete servicing before you put the product in storage for a long time.
Disposal
Symbols on the product or the packaging of the product indicate that this product cannot be handled as domestic waste. It must be submitted to an appropriate recycling station for the recovery of electrical and electronic equipment.
By ensuring that this product is taken care of correctly, you can help to counteract the potential negative impact on the environment and people that can otherwise result through the incorrect waste management of this product. For more detailed information about recycling this product, contact your municipality, your domestic waste service or the shop from where you purchased the product.
(Fig. 66)
Technical data
| Technical data | |
| W520i | |
| Cutting motor | |
| Motor type BLDC (brushless) 36V | |
| Motor speed – SavE, rpm* 2600 | |
| Motor speed – Nominal, rpm* 3000 | |
| Motor speed – High load, rpm* 3300 | |
| Motor output – max. kW / hp 1.8 / 2.4 | |
| Motor output – Nominal, kW / hp 1.5 / 2.0 | |
| Drive motor | |
| W520i | |
| Motor output - Nominal, kW / hp 0.3 / 0.4 | |
| Self walk speed, km/h / mi/h 3.0-5.0 / 1.9-3.1 | |
| Speed adjustment levels 4 | |
| Weight | |
| Weight without battery, kg / lbs 41 / 90.4 | |
| Battery | |
| Type of battery Husqvarna Battery Series | |
| Battery runtime | |
| Battery runtime, min, (free run) with SavE activated, with one Husqvarna 5.2 Ah battery (Bli200). | 30 |
| Battery runtime, min, (free run) with standard mode activated, with one Husqvarna 5.2 Ah battery (Bli200). | 20 |
| Cutting equipment | |
| Cutting height, mm / in 37-114 / 1.45-4.5 | |
| Cutting width, cm / in 51 / 20 | |
| Blade standard Collect blade 597466310 | |
| Blade accessory Mulch blade 597466410 | |
| Grass catcher capacity, l / cu.ft 65 / 2.3 | |
- Revolutions per minute
| Approved batteries Type Battery capacity, | Ah | Voltage, V Weight, lb/kg |
| BLi200 Lithium-ion 5.2 36 | 2.8/1.3 | |
| BLi300 Lithium-ion 9.4 36 | 4.1/1.9 | |
| BLi950X | Lithium-ion 31.1 | 36 15.4/7.0 |
| Approved chargers for the specified batteries, BLi | Input voltage, V | Frequency, Hz | Power, W |
| QC330 | 100–240 50–60 | 330 | |
| QC500 | 100–240 50–60 | 500 |
Table des matieres
Introduction 31
Sécurité 33
Montage. 46
Fonctionnement 47
Entretien 50
Dépannage 51
Original instructions