Husqvarna 525DEPS Powerhead Mad Pole Saw Instruction Manual

: May 15, 2024
: Husqvarna

Table of Contents

Introduction
**Safety
General power tool safety warnings
Assembly
Operation
Maintenance
Troubleshooting
Transportation, storage and disposal
Accessories
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

FOR SALE ONLY IN NORTH AMERICA, AUSTRALIA AND NEW ZEALAND
525iDEPS Powerhead
Husqvarna 525DEPS Powerhead Mad Pole Saw - drive
sprocket

Introduction

Intended use
This product is a replacement power unit for dielectric pole saw models 525DEPS and 525iDEPS. The completely assembled pole saw is used for cutting branches and twigs.
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 30.
Product overview Husqvarna 525DEPS Powerhead Mad Pole Saw - Product
overview

Keypad
Power trigger lockout
Power trigger
Hand guard
Skid plate
User interface
Start/stop button
Speed mode button
Operator’s manual

Symbols on the product
Warning! This product is dangerous. Injury or death can occur to the operator or bystanders if the product is not used carefully and correctly. To prevent injury to the operator or bystanders, read and obey all safety instructions in the operator’s manual.

****| Read the operator’s manual carefully and make sure that you understand the instructions before use.
---|---
| Use approved protective gloves during operation and maintenance. Use protective boots or shoes with non-slip soles. Use clothing of strong fabric and of full length.
| Use a protective helmet in locations where objects can fall on you. Use approved hearing protection. Use approved eye protection.
| Protected against splashing water.
| Direct current.
| Chain oil.
| Adjustment of the oil flow.
| Direction of rotation, saw chain.
| Always keep your hands behind the guard ring.
| If the product features Bluetooth wireless technology. The Bluetooth symbol will be marked on the product name label. Refer to Bluetooth wireless technology on page 19.

yyyywwxxxxx The rating decal shows the serial number. yyyy is the production year, ww is the production week and xxxxx is the sequential number.
DANGER: Risk of electrocution! For use by trained and qualified personnel only per OSHA 1910.269(r).
Untrained and non-professionals: Do not use within 11 m (36 ft) For use by trained and qualified personnel only per OSHA 01910.269(r).
Untrained and non-professionals: Do not use within 11 m (36 ft) of electrical hazards.
Tool must be clean, dry, and working properly before use.
Follow all company practices and procedures.
Note: Other symbols/decals on the product refer to certification requirements for some markets.
California Proposition 65
Warning
This product contains or emits a chemical known to the State of California to cause cancer or birth defects or other reproductive harm.
Product damage
We are not responsible for damages to our product 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.

General power tool safety warnings

WARNING: Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Note : 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.

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, nonskid 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 a 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.
The vibration emission during actual use of the power tool can differ from the declared total value depending on the ways in which the tool is used. Operators should identify safety measures to protect themselves that are based on an estimation of exposure in the actual conditions of use (taking account of all parts of the operating cycle such as the times when the tool is switched off and when it is running idle in addition to the trigger).

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 behavior 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 ºC (265 ºF) 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.
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. Pole pruner safety warnings – personal safety
Keep all parts of the body away from the saw chain when using the pole pruner. Before you start the pole pruner, make sure the saw chain is not contacting anything. A moment of inattention while operating pole pruners may cause entanglement of your clothing or body with the saw chain.
Always hold the pole pruner with both hands. Holding the pole pruner with one hand increases the risk of personal injury and should never be done.
Wear eye protection. Further protective equipment for hearing, head, hands, legs and feet is recommended. Adequate protective equipment will reduce personal injury from flying debris or accidental contact with the saw chain.
Always keep proper footing and operate the pole pruner only when standing on fixed, secure and level surface. Slippery or unstable surfaces may cause a loss of balance or control of the pole pruner.
When cutting a limb that is under tension, be alert for spring back. When the tension in the wood fibres is released, the spring loaded limb may strike the operator and/or throw the pole pruner out of control.
Use extreme caution when cutting brush and saplings. The slender material may catch the pole pruner and be whipped toward you or pull you off balance.
Follow instructions for lubricating, chain tensioning and changing the bar and chain. Improperly tensioned or lubricated chain may either break or increase the chance for kickback.
Carry the pole pruner by the shaft with the pole pruner switched off and away from your body. When transporting or storing the pole pruner, always fit the guide bar cover. Proper handling of the pole pruner will reduce the likelihood of accidental contact with the moving saw chain.
Cut wood only. Do not use pole pruner for purposes not intended. For example: do not use pole pruner for cutting metal, plastic, masonry or non-wood building materials. Use of the pole pruner for operations different than intended could result in a hazardous situation.
Keep handles dry, clean and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
This pole pruner is not intended for tree felling.Use of the pole pruner for operations different than intended could result in serious injury to the operator or bystanders.

Causes and operator prevention of kickback
Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the pole pruner in the cut. Tip contact in some cases may cause a sudden reverse reaction, kicking the guide bar up and back towards the operator. Pinching the pole pruner along the top of the guide bar may push the guide bar rapidly back towards the operator. Either of these reactions may cause you to lose control of the pole pruner which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your pole pruner. As a pole pruner user, you should take several steps to keep your cutting jobs free from accident or injury. Kickback is the result of pole pruner misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

Maintain a firm grip, with thumbs and fingers encircling the pole pruner handles, with both hands on the pole pruner and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let go of the pole pruner.
Do not overreach. This helps prevent unintended tip contact and enables better control of the pole pruner in unexpected situations.
Only use replacement guide bars and saw chains specified by the manufacturer.Incorrect replacement guide bars and saw chains may cause chain breakage and/or kickback.
Follow the manufacturer’s sharpening and maintenance instructions for the pole pruner. Decreasing the depth gauge height can lead to increased kickback.

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

Remove the battery to prevent the product from being started by accident.
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.
Do not use the product if it is changed from its initial specification. Do not change a part of the product without approval from the manufacturer. Only use parts that are approved by the manufacturer. Injury or death is a possible result of incorrect maintenance.
Do a check of the product before use. Refer to Safety on page 4 and Maintenance on page 20. Do not use a product that is damaged or does not operate correctly. Do the safety checks, maintenance and service instructions described in this manual.
Children should be supervised to ensure that they do not play with the product. Never allow children or other persons not trained in the use of the product and/or the battery to use or service it. Local laws may regulate the age of the user.
Keep the product in a locked area to prevent access for children or persons that are not approved.
Store the product out of reach of children.
Your warranty may not cover damage or liability caused by the use of nonauthorized accessories or replacement parts.
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 and others.

Note: National or Local laws can regulate the use. Comply to given regulations.
Safety instructions for operation
WARNING: Read and obey the warning instructions that follow before you use the product.

Ensure that no people or animals come closer than 15 m / 50 ft. while you work.
When several operators are working in the same area the safety distance should be at least 15 m. 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.
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.
Do not allow children to use or be in the vicinity of the product. Since the product 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. Disconnect the battery when the product is not under close supervision.
Ensure that people, animals or other things can not affect your control of the product or hat they do not come in contact with the cutting attachment or loose objects that are thrown out by the cutting attachment.
Listen for warning signals or shouts when you wear hearing protection. Always remove your hearing protection as soon as the product stops.
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 colour or condition. These symptoms usually show in the fingers, hands or wrists.
Never use a cutting attachment without an approved guard. If an incorrect or faulty guard is fitted this can cause serious personal injury.
Always stop the product, remove the battery and make sure that the cutting equipment stops completely before you start to do any work on the product. Departure from the sharpening instructions conciderably increase the risk of kickback.
If you encounter a situation where you are uncertain how to proceed you should ask an expert. Contact your dealer or your service workshop. Avoid all usage which you consider to be beyond your capability.
Avoid all usage which you consider to be beyond your capability.
Never use the product if you are fatigued, while under the influence of alcohol or drugs, medication or anything that could affect your vision, alertness, coordination or judgment.
The product can be thrown violently to the side when the tip of the guide bar comes in contact with a fixed object. This is called kickback. A kickback can be violent enough to cause the product/operator to be propelled in any direction, and possibly lose control of the product. Avoid cutting with the guide bar tip.
Do not use the product unless you are able to call for help in case of an accident.
Keep a good balance and a firm foothold.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.
Always inspect the working area. Remove all loose objects such as stones, broken glass, nails, steel wire, string, etcetera, that could be thrown out or become wrapped around the cutting attachment.
Take great care when cutting a tree that is in tension. A tree that is in tension may spring back to its normal position before or after being cut. If you position yourself incorrectly or make the cut in the wrong place the tree may hit you or the product and cause you to lose control. Both situations can cause serious personal injury.
The shoulder harness supports the weight of the product and makes it easier to handle. Company policy can set limits for the operation of the product with the shoulder harness. Obey all company practices and procedures. Refer to OSHA and equipment guidelines when you use the product in an aerial work platform.
Adjust the position of the guard ring for your work. Always keep your hands behind the guard ring.
Always hold the product with both hands.
Stop the product before you move to another area. Attach the transport guard before carrying or transporting the product any distance.
Never put the product down when it is activated unless you have it in clear sight.
If the product is operated at temperatures below -10°C the product and the battery must be stored in a heated space for at least 24 hours before starting work.
Never stand directly underneath a branch that is being cut. This could lead to serious or even fatal personal injury.
Observe the applicable safety regulations for work in the vicinity of overhead power lines.
If the product touches or comes close to high-voltage power line it could lead to death or serious bodily injury. Electricity can jump from one point to another by arcing. The higher the voltage, the greater the distance electricity can jump. Electricity can also travel through branches and other objects, especially if they are wet.
For use by trained and qualified personnel only per OSHA 1910.269(r)
Untrained and non-professionals: Do not use within 11m (36 ft) of electrical hazards.
Tool must be clean, dry, and working properly before use.
A faulty cutting attachment may increase the risk of accidents.
Follow all company practices and procedures.

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 licenceexempt 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 Husqvarna525iDEPS Powerhead
Responsible Party
Husqvarna Professional Product, Inc.
9335 Harris Corners Parkway
Charlotte, NC 28269
United States
Telephone: +1 704 597 5000
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 right equipment.
Use a protective helmet where there is a risk of falling objects.
Use approved hearing protection that provides adequate noise reduction. Longterm exposure to noise can result in permanent hearing impairment.
Use approved eye protection. If you use a visor, you must also use approved protective goggles. Approved protective goggles must comply with the ANSI Z87.1 standard in the USA or EN 166 in EU countries.
Use gloves when necessary, for example when you attach, examine or clean the cutting equipment.
Use sturdy non-slip boots.
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 wear jewelry, short pants, sandals or go with bare feet. Put your hair up safely above shoulder level.
Keep first aid equipment close at hand.

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 under0 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 nearestz servicing dealer.
WARNING: Never use a product with damaged 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 user interface

Press and hold the start/stop button (A). a) The product is on when the display (B) comes on.
b) The product is off when the display goes off.
If the warning indicator on the display is on or flashes, refer to Keypad on page 27.

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 (1) and then press the power trigger lockout against the handle (2), the power trigger (3) 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.

Make sure that the power trigger is locked when the power trigger lockout is in its original position.
Press the power trigger and make sure it returns to its original position when you release it.
Make sure that the power trigger and the power trigger lockout moves freely and that the return spring operates correctly.
Start the product, refer to To start the product on page 17.
Apply full speed.
Release the power trigger and make sure that the cutting attachment stops and remains still.

Safety instructions for the cutting equipment
WARNING: Read the warning instructions that follow before you use the product.

Only use approved guide bar/saw chain combinations and filing equipment. Refer to Filing equipment and filing angles on page 30 for instructions.
Use protective gloves when you use or do maintenance on the saw chain. A saw chain that does not move can also cause injuries.
Keep the cutting teeth correctly sharpened. Obey the instructions and use the recommended file gauge. A saw chain that is damaged or incorrectly sharpened increases the risk of accidents.
Keep the correct depth gauge setting.
Obey the instructions and use the recommended depth gauge setting. Too large depth gauge setting increases the risk of kickback.
Make sure that the saw chain has the correct tension. If the saw chain is not tight against the guide bar, the saw chain can derail. An incorrect saw chain tension increases wear on the guide bar, saw chain and chain drive sprocket. Refer to To tension the chain on page 25.
Do maintenance on the cutting equipment regularly and keep it correctly lubricated. If the saw chain is not correctly lubricated, the risk of wear on the guide bar, saw chain and chain drive sprocket increases.

Safety instructions for the dielectric shaft

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

The product is tested to meet OSHA 1910.269(j) standards.
If the product is used within 11m (36 ft) of electrical hazards, it must be used by approved and qualified personnel only per OSHA 1910.269(r).
Untrained and non-professionals: Do not use within 11m (36 ft) of electrical hazards.
Clean and do the correct servicing on the dielectric shaft to help keep the electrical insulation properties.
Keep the dielectric shaft clean and dry when you do work around energized electrical power lines. Oil or dirt decreases the electrical insulation properties of the dielectric shaft.
Obey local regulations.
The tool must be clean, dry, and work correctly before use.
Follow all company procedures.
Use only approved dielectric bar oil.
Only use the batteries that we recommend for your product. The batteries are software encrypted.
Use the batteries that are rechargable as a power supply for the related Husqvarna products only. To prevent injury, do not use the battery as a power supply for other devices.
Risk of electrical shock. Do not connect the battery terminals to keys, screws or other metal. This can cause a short circuit of the battery.
Do not use batteries that are nonrechargable.
Do not put objects into the air slots of the battery.
Keep the battery away from sunlight, heat or open flame. The battery can cause burns and/or chemical burns.
Keep the battery away from microwaves and high pressure.
Do not try to disassemble or break the battery.
Do not let battery acid touch your skin.
Battery acid causes injuries to the skin, corrosion and burns. If you get battery acid in your eyes, do not rub but flush with water for minimum 15 minutes. If battery acid has touched your skin, you must clean the skin with a large quantity of water and soap. Get medical aid.
Use the battery in temperatures between -10 °C (14 °F) and 40 °C (104 °F).
Do not clean the battery or the battery charger with water. Refer to To clean the product, the battery and the battery charger on page 21.
Do not use a battery that is damaged or do not operate correctly.
Keep batteries in storage away from metal objects such as nails, screws or jewelry.
Keep the battery away from children.

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

Risk of electrical shock or short circuit if the safety instructions are not obeyed.
Use an approved grounded mains socket that is not damaged.
Do not use other battery chargers than the one supplied for your product. Only use Husqvarna QC chargers when you charge Husqvarna replacement batteries BLi.
Do not try to disassemble the battery charger.
Do not use a battery charger that is damaged or do not operate correctly.
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 all cables and extension leads away from water, oil and sharp edges. Make sure that the cable is not caught between doors, fences or similar.
Do not use the battery charger near flammable materials or materials that can cause corrosion. Make sure that the battery charger is not covered. Pull out the plug to the battery charger if there is smoke or fire.
Only charge the battery indoors in a location with good airflow and away from sunlight. Do not charge the battery outdoors. Do not charge the battery in wet conditions.
Only use the battery charger where the temperature is between 5 °C (41 °F) and 40 °C (104 °F). Use the charger in an environment which has a good airflow, dry and free from dust.
Do not put objects into the cooling slots of the battery charger.
Do not connect the battery charger terminals to metal objects as this can short circuit the battery charger.
Use approved wall sockets that are not damaged.
Use only three-wire outdoor extension cords that have three-prong grounding plugs and grounding receptacles that accept the appliance’s plug.

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.

Assembly

To assemble the cutting head
CAUTION: Make sure that the drive shaft inside the shaft engages with the cut-out in the cutting head.

Loosen the screw on the cutting head. (A)
Fit the cutting head on the shaft so that the screw (A) is aligned with the hole in the shaft as shown.
Finger tighten the screw (A). Make sure that screw (A) fits into the hole in the shaft.
Tighten screw (A).
Tighten screw (B).

To assemble the bar and chain

Unscrew the bar nut and remove the protective cover.
Fit the bar over the bar bolt. Place the bar in its rearmost position. Place the chain over the drive sprocket and in the groove on the bar. Begin on the top side of the bar.
Make sure that the edges of the cutting links are facing forward on the top edge of the guide bar.
Fit the cover and locate the chain adjuster pin (A) in the hole in the bar. Check that the drive links of the chain fit correctly on the drive sprocket (B) and that the chain is in the groove in the bar (C). Tighten the bar nut finger-tight.
Tension the chain by turning the chain tensioning screw clockwise using the combination spanner. The chain should be tensioned until it does not sag from the underside of the bar.
The chain is correctly tensioned when it does not sag from the underside of the bar, but can still be turned easily by hand. Hold up the bar tip and tighten the bar nuts with the combination spanner.
When fitting a new chain, the chain tension has to be checked frequently until the chain is run-in. Check the chain tension regularly. A correctly tensioned chain ensures good cutting performance and long life.

To assemble the shaft

Select the applicable shaft for your operation.
Turn the knob to loosen the coupling.
Push and hold the release button.
Carefully push the shaft into the coupling until you hear a click. Make sure that the release button go into the hole in the coupling.
Tighten the knob fully.

To disassemble the shaft

Turn the knob 3 turns or more to loosen the coupling.
Push and hold the release button.
Hold tight to the end of the shaft segments that you are to remove.
Pull the shaft straight out of the coupling.

To assemble the branch hook

Use 2 screws to attach the branch hook.

To attach the harness support hook

Attach the harness support hook on the product with the spacer, the bolt, the nut and the knob.

To adjust the harness

Put on the harness.
Attach the product to the harness support hook.
Adjust the length of the harness until the support hook is roughly level with your hip.

Operation

Introduction
WARNING: Read and understand the safety chapter before you use the product.
To connect the battery to the product
WARNING: Only use Husqvarna original batteries with the product.

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

To charge the 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.
Put the battery in the battery charger.
Make sure that the green charging light on the battery charger comes on. That means that the battery is connected correctly to the battery charger.
When all LEDs on the battery come on, the battery is fully charged.
To disconnect the battery charger from the mains socket, pull the plug. Do not pull the cable.
Remove the battery from the battery charger.

Note: Refer to the battery and battery harger manuals for more information.
To check before starting

Inspect the working area. Remove any objects that could be thrown out.
Check the cutting attachment. Never use blunt, cracked or damaged equipment
Check that the machine is in perfect working order.
Check that all nuts and screws are tight.
Make sure the chain is adequately lubricated. See, To adjust the chain lubrication on page 26.
Make sure that the cutting attachment always stops when you release the throttle/ power trigger.
Only use the product for the purpose it was intended for.
Make sure the handle and safety features are in order. Never use a machine that has any parts missing or has been modified in relation to the specification.

To start the product

Push and hold the start button until the green LED comes on.
Use the power trigger to control the speed.

To limit the maximum speed with the mode button
The product has a mode button. Withe 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.

Push the mode button to set a limit to themaximum speed. The white LEDs comes on to show that the function is on.
Push the Mode button again to choose the next speed level.

Automatic shutdown function
The product is equipped with a shutdown unction that deactivates the product if it is not used.
To stop the product

Release the power trigger or the power trigger lockout.
Push the stop button.
Push the release buttons on the battery and pull the battery out.

To use the correct chain oil
WARNING: Do not use waste oil, which can cause injury to you and the environment. Waste oil also causes damage to the oil pump, the guide bar and the saw chain.
WARNING: The saw chain can break if the lubrication of the cutting equipment is not sufficient. Risk of serious injury or death to the operator.
WARNING: Use the correct chain oil for this function to operate correctly. Speak to your servicing dealer when you select your chain oil.
Note: This product has an automatic chain lubrication system. You can also adjust the oil flow. Refer to To adjust the chain lubrication on page 26.

Use only Husqvarna dielectric chain oil.
CAUTION: In temperatures below 0°C/32°F some chain oils become too thick, which can cause damage to the oil pump components.
Use the recommended cutting equipment.
Refer to Recommended cutting equipment on page 30.

To use the product

Hold the product as close to your body as possible to get the best balance.
Make sure that the tip does not touch the ground.
Do not rush the work, but work steadily until all the branches have been cut back cleanly.
Always work at full throttle.
Whenever possible position yourself so that you can make the cut at right angles to the branch.
Cut large branches in sections so that you have better control over where they fall.
Never cut through the swelling at the root of the branch as this will slow down healing and increase the risk of fungal attack.
Use the stop at the base of the cutting head to provide support during cutting. This will help prevent the cutting attachment from bouncing on the branch.
Make an initial cut on the underside of the branch before cutting through the branch. This will prevent tearing of the bark, which could lead to slow healing and cause permanent damage to the tree. The cut should not be deeper than ⅓ of the branch thickness to prevent jamming. Keep the chain running while you withdraw the cutting attachment from the branch to prevent it jamming.

Husqvarna Fleet Services
Husqvarna Fleet Services™ is a cloud solution that gives the commercial fleet manager an overview of all products. It is also possible for the fleet managers to get remote access to information about the product. For more information about Husqvarna Fleet Services Bluetooth™ , refer to www.husqvarna.com. ® wireless technology Products with built-in Bluetooth ® wireless technology can connect to mobile devices and enables additional functions from Husqvarna Connect. 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™

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

Maintenance

Introduction
WARNING: Read and understand the safety chapter before you do maintenance work on the product.
WARNING: Remove the battery before you do maintenance on the product.
Maintenance schedule
WARNING: Remove the battery before you do maintenance.
The following is a list of the maintenance steps that you must do on the product. Refer to the tasks in the maintenance chapter for more information.

Maintenance	Daily	Weekly	Monthly
Clean the external parts of the product with a dry cloth. Do not use wa- ter.
X

Check the saw chain with regard to visible cracks in the rivets and links, whether the saw chain is stiff or whether the rivets and links are abnormally worn.| X| |
Make sure that the start and stop button works correctly and are 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 and clean. Makes sure that that there is no oil and grease on the handles.| X| |
Make sure that the saw chain cover is not damaged. Replace the saw chain cover if it is damaged.| X| |
Make sure that the screws and nuts are tight.| X| |
Clean the oil tank cap| 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| |
Maintenance| Daily| Weekly| Monthly
---|---|---|---
Make sure that the battery is not damaged.| X| |
Make sure that the battery is charged.| X| |
Make sure that the battery charger is not damaged.| X| |
Examine all cables, couplings and connections. Make sure that there is no damage or dirt.| | X|
Clean the saw chain cover.| | X|
File off any burrs from the edges of the bar.| | X|
Lubricate the shafts.| | X|
Apply dielectric grease to the shaft coupling.| | X|
Do a check of the connections between the battery and the product. Do a check of the connection be- tween the battery and the battery charger.| | | X
Do an inspection of the dielectric shaft for worn and damaged areas. Do not use the product if the die-lectric shaft has worn or damaged areas. Refer to OSHA 1910.269 for more information.| X| |
Make sure that the saw head is not damaged. Replace the saw head if it is damaged.| An approved Husqvarna dealer must do all servicing on the saw head.
Examine the wear of the chain drive sprocket.| Replace the chain drive sprocket after approximately 100 hours of operation or more frequently if it is neces-
sary.

To examine the battery and the battery charger

Examine the battery for damages, for example cracks.
Examine the battery charger for damages, for example cracks.
Make sure that the connection cord of the battery charger is not damaged and that there are no cracks in it.

To clean the product, the battery and the battery charger

Clean the product with a dry cloth after use.
Clean the battery and battery charger with a dry cloth. Keep the battery guide tracks clean.
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 shaft
Lubricate the ends of the drive shaft after each 30 hours of operation. There is a risk that the ends of the drive shaft (splined coupling) wears if they are not lubricated regularly.

Disassemble the shaft. Refer to To disassemble the shaft on page 15.
Lubricate the end of the drive shaft.
Assemble the shaft. Refer to To assemble the shaft on page 14.

To apply dielectric grease to the shaft coupling
Apply dielectric grease to the inner surface of the shaft coupling and the outer surface of the shaft after each 30 hours of operation.

Disassemble the shaft. Refer to To disassemble the shaft on page 15.
Apply dielectric grease to the inner surface of the shaft coupling and the outer surface of the shaft.
Assemble the shaft. Refer to To assemble the shaft on page 14.

To check the chain drive sprocket

Regularly check the degree of wear on the drive sprocket. Replace if wear is excessive.

To examine the cutting equipment

Make sure that there are no cracks in rivets and links and that no rivets are loose. Replace if it is necessary.
Make sure that the saw chain is easy to bend. Replace the saw chain if it is rigid.
Compare the saw chain with a new saw chain to examine if the rivets and links are worn.
Replace the saw chain when the longest part of the cutting tooth is less than 4 mm/ 0.16 in. Also replace the saw chain if there are cracks on the cutters.

To do a check of the guide bar

Make sure that the oil channel is not blocked. Clean if it is necessary.
Examine if there are burrs on the edges of the guide bar. Remove the burrs using a file.
Clean the groove in the guide bar.
Examine the groove in the guide bar for wear. Replace the guide bar if it is necessary.
Examine if the guide bar tip is rough or very worn.
Make sure that the bar tip sprocket turns freely and that the lubricating hole in the bar tip sprocket is not blocked. Clean and lubricate if it is necessary.
Turn the guide bar daily to extend its life cycle.

To sharpen the saw chain
Information about the guide bar and saw chain
WARNING: Use protective gloves when you use or do maintenance on the saw chain. A saw chain that does not move can also cause injuries.
Replace a worn or damaged guide bar or saw chain with the guide bar and saw chain combination recommended by Husqvarna. This is necessary to keep the safety functions of the product. Refer to Accessories on page 30, for a list of replacement bar and chain
combinations that we recommend.

Guide bar length, in/cm. Information about the guide bar length can usually be found on the rear end of the guide bar.
Number of teeth on bar tip sprocket (T).
Chain pitch, in. The distance between the drive links of the saw chain must align with the distance of the teeth on the bar tip sprocket and drive sprocket.
Number of drive links. The number of drive links is decided by the type of guide bar.
Bar groove width, in/mm. The groove width in guide bar must be the same as the chain drive links width.
Chain oil hole and hole for chain tensioner. The guide bar must align with product.
Drive link width, mm/in.

General information about how to sharpen the cutters
Do not use a blunt saw chain. If the saw chain is blunt, you must apply more pressure to push the guide bar through the wood. If the saw chain is very blunt, there will be no wood chips but sawdust.
A sharp saw chain eats through the wood and the wood chips becomes long and thick. The cutting tooth (A) and the depth gauge (B) together makes the cutting part of the saw chain, the cutter. The difference in height between the two gives the cutting depth (depth gauge setting). When you sharpen the cutter, think about the following: Husqvarna 525DEPS Powerhead Mad Pole Saw -
Filing angle It is not easy to sharpen a saw chain correctly without the correct equipment. Use
Husqvarna file gauge. This will help you to keep maximum cutting performance.
Note: Refer to To sharpen the cutters on page 24 for information about sharpening of the saw chain.
To sharpen the cutters

Use a round file and a file gauge to sharpen the cutting teeth. Note: Refer to Filing equipment and filing angles on page 30 for information about which file and gauge that Husqvarna recommends for your saw chain.
Apply the file gauge correctly on to the cutter. Refer to the instruction supplied with the file gauge.
Move the file from the inner side of the cutting teeth and out. Decrease the pressure on the pull stroke.
Remove material from one side of all the cutting teeth.
Turn the product around and remove material on the other side.
Make sure that all cutting teeth are the same length.

General information about how to adjust the depth gauge setting
The depth gauge setting (C) decreases when you sharpen the cutting tooth (A). To keep maximum cutting performance you must remove filing material from the depth gauge (B) to receive the recommended depth gauge setting. Refer to To adjust the depth gauge setting on page 25 for instructions about how to receive the correct depth gauge setting for your saw chain. Husqvarna 525DEPS
Powerhead Mad Pole Saw - chain To adjust the depth gauge setting
Before you adjust the depth gauge setting or sharpen the cutters, refer to General information about how to sharpen the cutters on page 24, for instructions. We recommend you to adjust the depth gauge setting after each third operation that you sharpen the cutting teeth.
We recommend that you use our depth gauge tool to receive the correct depth gauge setting and bevel for the depth gauge. Husqvarna 525DEPS Powerhead Mad
Pole Saw - depth gauge setting

Use a flat file and a depth gauge tool to adjust the depth gauge setting. Only use a Husqvarna recommended depth gauge tool to get the correct depth gauge setting and bevel for the depth gauge.
Put the depth gauge tool on the saw chain.
Note: See the package of the depth gauge tool for more information about how to use the tool.
Use the flat file to remove the part of the depth gauge that extends through the depth gauge tool.

Husqvarna 525DEPS Powerhead Mad Pole Saw - extends

To tension the chain
WARNING: A saw chain with an incorrect tension can derail from the guide bar and cause serious injury or death.
A saw chain becomes longer when you use it.
Adjust the saw chain regularly.

Loosen the bar nut that hold the clutch cover/chain brake. Use a combination wrench.
Tighten the bar nuts by hand as tightly as you can.
Lift the front of the guide bar and turn the chain tensioning screw. Use a combination wrench.
Tighten the saw chain until it is tight against the guide bar but still can move easily.
Tighten the bar nuts using the combination wrench and lift the front of the guide bar at the same time.
Make sure you can pull the saw chain around freely by hand and that it does not hang from the guide bar.

To fill with chain oil

Open the oil cap on top of the bar head.
Fill with Husqvarna saw chain oil.
Attach the cap again.

To check the chain lubrication

Start the product. Refer to To check before starting on page 17.
Point the tip of the bar at a light surface.
Keep a distance of 20 cm (8 inches).
Operate the throttle at 75% for 1 minute.
Stop the product. Refer to To stop the product on page 18.
Make sure that you can see a line of oil on the light surface.

CAUTION: Do a check of the guide bar if the saw chain lubrication does not operate correctly. Refer to To do a check of the guide bar on page 22 for instructions. Speak to your servicing dealer if the maintenance steps does not help.
To adjust the chain lubrication
WARNING: Stop the engine before you make adjustments to the oil pump.
Turn the adjustment screw for the oil pump. Use a screwdriver or a combination wrench.

Turn the adjustment screw clockwise to decrease the oil flow.
Turn the adjustment screw counterclockwise to increase the oil flow.

Troubleshooting

Problem	Possible faults	Possible solution
Green start LED flashes.	Low battery voltage.	Charge the battery.
Red error LED flashes.	Overload.	The cutting attachment is blocked. stop the

product. Remove the bat- tery. Clean the cutting attachment from unwanted materials. Loosen the chain.
Temperature deviation.| Let the product become cool.
The power trigger and the start but- ton are pushed at the same time.| Release the power trigger and push the start button.
The product does not start.| Dirt in the battery connectors.| Clean the battery connectors with compressed air or a soft brush.
Red error LED comes on.| It is necessary to do servicing on the product.| Speak to your servicing dealer.

Battery

LED display	Possible faults	Possible action
Green activate LED flash- ing	Low battery voltage.	Charge the battery.
Error LED flashing	The battery is discharged.	Charge the battery.
Temperature deviation.	Use the battery in surroundings where temperatures are

between -10°C (14°F) and 40°C (104°F).
LED display| Possible faults| Possible action
---|---|---
Error LED is lit| Cell difference is too much (1V).| Contact your servicing agent.

Battery charger

Problem	Possible faults	Possible solution
Red error LED flashes.	Temperature deviation.	Use the battery charger in

temperatures between 5 °C (41 °F) and 40 °C (104 °F).
Red error LED comes on.| | Speak to your servicing deal- er.

Transportation, storage and disposal

Transportation and storage
Note: Variations in temperature can lead to pressure in the oil tank with temporary oil leakage as a result. Follow the storage instructions.

Clean the product and empty the oil tank before you put the product in storage.
Put the product in a horizontal position or hung with the bar pointed down during storage.
Do not put the product with the bar pointed up during storage.
The approved 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 °C (41 °F) and 25 °C (77 °F) and away from open sunlight.
Put the battery charger in storage where the temperature is between 5 °C (41 °F) and 45 °C (113 °F) and away from open sunlight.
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.
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.
This product is a special tool with a dielectric shaft section. The dielectric shaft section must be removed, put in the storage bag, and kept in a safe location for storage and transportation. Do not put the product into storage assembled.

Disposal of the battery, battery charger and product
The symbol below 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.
Speak to local authorities, domestic waste service or your dealer for more information.

Note: The symbol shows on the product or package of the product.
Technical data

Motor

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	QC330	QC500
Input voltage, V	100-240	100-240
Frequency, Hz	50-60	50-60
Battery charger	QC330	QC500
---	---	---
Power, W	330	500

Accessories

Dielectric chain oil

Dielectric chain oil|
---|---
Type| Quantity, litre
599695301| 0.946

Recommended cutting equipment
Recommended guide bar and saw chain combination.

Guide bar	Saw chain
Length, in/cm	Pitch, in

Length, drive links, no.
10/25.4| 3/8 mini| 0.050/1.3| Husqvarna H37, S93G| 40
12/30.5| 3/8 mini| 0.050/1.3| Husqvarna H37, S93G| 44

Filing equipment and filing angles
Using Husqvarna file gauge will give you the correct filing angles. We recommend you to always use a Husqvarna file gauge to restore the sharpness of the saw chain. The part numbers are given in the table below.
If you do not know which saw chain you have on your product, turn to your servicing dealer.