HUSQVARNA 120i - Saw

120i - Saw HUSQVARNA - Free user manual and instructions

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USER MANUAL 120i HUSQVARNA

Transportation, storage and disposal 30

Assembly. 12

Technical data. 31

Operation 13

Accessories 32

Maintenance. 22

EC Declaration of Conformity 34

Introduction

Product description

Husqvarna 120i is a chainsaw model with a battery motor.

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

Intended use

This product is intended for sawing in wood.

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

Product overview

HUSQVARNA 120i - Product overview - 1

  1. Front hand guard
    2.Keypad
  2. SavE button
  3. Warning indicator
  4. Start/stop button
  5. Power trigger lockout

  6. Rear handle with right hand guard

  7. Fan housing
  8. Chain oil tank
  9. Battery charger
  10. Power cord
  11. Warning indicator

  12. Connector

  13. Operator's manual
  14. Guide bar cover
  15. Drive sprocket cover
  16. Chain tensioner wheel
  17. Knob
  18. Chain catcher
  19. Spiked bumper
  20. Bar tip sprocket
  21. Saw chain
  22. Guide bar
  23. Front handle
  24. Power trigger
  25. Battery
  26. Battery release buttons
  27. Battery status
  28. Button, battery status
  29. Warning indicator

Symbols on the product

HUSQVARNA 120i - Symbols on the product - 1

Risk of serious injury or death to the operator or others. Be careful and use the product correctly.

HUSQVARNA 120i - Symbols on the product - 2

Read the operator's manual carefully and understand the instructions before operation of the product.

HUSQVARNA 120i - Symbols on the product - 3

Wear approved protective helmet, hearing and eye protection.

HUSQVARNA 120i - Symbols on the product - 4

This product agrees with applicable EC Directives.

HUSQVARNA 120i - Symbols on the product - 5

Noise emission to the environment agrees with applicable EC Directives. See the emission specification in Technical data on page 31 and on the label.

HUSQVARNA 120i - Symbols on the product - 6

Both of the operator's hands must be used to operate the chainsaw.

HUSQVARNA 120i - Symbols on the product - 7

Do not operate the chainsaw holding it with one hand only.

HUSQVARNA 120i - Symbols on the product - 8

Do not let the guide bar tip touch all objects.

HUSQVARNA 120i - Symbols on the product - 9

Warning! Kickback can occur when the guide bar tip touches an object. This causes the guide bar to be thrown in the direction of the operator. Risk of serious injury or death.

HUSQVARNA 120i - Symbols on the product - 10

The direction in which the saw chain rotates and maximum length of the guide bar.

HUSQVARNA 120i - Symbols on the product - 11

Chain brake, engaged (right). Chain brake, disengaged (left).

HUSQVARNA 120i - Symbols on the product - 12

Chain oil fill.

HUSQVARNA 120i - Symbols on the product - 13

Direct current.

HUSQVARNA 120i - Symbols on the product - 14

Do not expose to rain.

HUSQVARNA 120i - Symbols on the product - 15

Environmental mark. The product or package of the product is not domestic waste. Recycle it at a recycling station for electrical and electronic equipment.

yyyywwxxxxxx

The rating plate shows serial number. yyy is the production year, ww is the production week.

Note: Other symbols/decals on the product refer to certification requirements for some markets.

Symbols on the battery and/or on the battery charger

HUSQVARNA 120i - Symbols on the battery and/or on the battery charger - 1

Recycle this product at a recycling station for electrical and electronic equipment. (Applies to Europe only)

HUSQVARNA 120i - Symbols on the battery and/or on the battery charger - 2

Fail-safe transformer.

Safety

Safety definitions

The definitions below give the level of severity for each signal word.

HUSQVARNA 120i - Safety definitions - 1

WARNING: Injury to persons.

HUSQVARNA 120i - Safety definitions - 2

CAUTION: Damage to the product.

Note: This information makes the product easier to use.

General power tool safety warnings

HUSQVARNA 120i - General power tool safety warnings - 1

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 (cored) power tool or battery-operated (cordless) power tool.

Work area safety

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

Electrical safety

  • Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
  • Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.

  • Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.

  • Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
  • When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
  • If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

Personal safety

  • Stay alert, monitor what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
  • Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
  • Prevent unintentional starting. Ensure the switch is in the OFF-position before connecting to 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, clothing and gloves 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.
    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 the battery pack 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. 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.

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.

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.

Chain saw safety warnings

  • Keep all parts of the body away from the saw chain when the chain saw is operating. Before you start the chain saw, make sure the saw chain is not contacting anything. A moment of inattention while operating chain saws may cause entanglement of you clothing or body with the saw chain.
  • Always hold the chain saw with your right hand on the rear handle and your left hand on the front handle. Holding the chain saw with a reversed hand configuration increases the risk of personal injury and should never be done.
  • Hold the power tool by insulated gripping surface only, because the saw chain may contact hidden wiring or its own cord. Saw chain contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
  • Wear safety glasses and hearing protection. Further protective equipment for head, hands, legs and feet is recommended. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with the saw chain.
  • Do not operate a chain saw in a tree. Operation of chain saw while up a tree may result in personal injury.
  • Always keep proper footing and operate the chain saw only when standing on fixed, secure and level surface. Slippery or unstable surfaces such as ladders may cause a loss of balance or control of the chain saw.
  • 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 chain saw out of control.
  • Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped forward toward you or pull you off balance.
  • Carry the chain saw by the front handle with the chain saw switched off and away from your body. When transporting or storing the chain saw always fit the guide bar cover. Proper handling of the chain saw will reduce the likelihood of accidental contact with the moving saw chain.

  • Follow instruction for lubricating, chain tensioning and changing accessories. Improperly tensioned or lubricated saw chain may either brake or increase the chance of kickback.

  • Keep handles dry, clean and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
  • Cut wood only. Do not use chain saw for purposes not intended. For example: do not use chain saw for cutting plastic, masonry or nonwood building materials. Use of the chain saw for operations different than intended could result in a hazardous situation.
  • We strongly recommend that first time users practice sawing logs on a saw horse or cradle.

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 saw chain 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 saw chain 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 saw which could result in serious personal injury. Do not rely exclusively upon the safety devises built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury. Kickback is a result of tool 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 chain saw handles, with both hands on the saw 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 chain saw.
  • Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chain saw in unexpected situations.
  • Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/or kickback.
  • Follow the manufacturer's sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.

SAVE THESE INSTRUCTIONS.

General safety instructions

HUSQVARNA 120i - General safety instructions - 1

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

  • 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. It is very important that you read and understand the contents of this operator's manual.
  • Do not change the product without an approval from the manufacturer. Do not use a product that has been changed by others and always use original accessories. Changes that are not approved from the manufacturer can result in serious injury or death to the operator or others.
  • Long term inhalation of chain oil fumes and sawdust can cause health problems.
  • This product produces an electromagnetic field during operation. This field may under some circumstances interfere with active or passive medical implants. To decrease the risk of serious injury or death, we recommend persons with medical implants to turn to their physician and the medical implant manufacturer before operating this product.

Safety instructions for operation

HUSQVARNA 120i - Safety instructions for operation - 1

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

  • The information in this operator's manual is not a replacement for professional knowledge and experience. If you do not feel safe in the situation that you are in, stop the product. Turn to your servicing dealer or a professional chainsaw operator. Do not attempt any task that you feel unsure of!
  • Turn to your servicing dealer or Husqvarna if you have questions about the operation of the product. We can give you information about how to operate your product effectively and safely. Participate in a training class in chainsaw operation if possible. Your servicing dealer, forestry school or your library can give you information about training materials and classes that are available.
  • You must understand the effects of kickback and how to prevent them before you use this product. See What is kickback? on page 15 and Common questions about kickback on page 16 for instructions.
  • Do not use a product, battery or battery charger that is defective.
  • Do not touch a rotating saw chain. It can cause serious injuries of death.
  • Do not use the product if you are tired, while under the influence of alcohol or drugs, medicine or anything that could have a negative effect on your vision, alertness, coordination or judgment.
  • Do not use the product in bad weather, for example, heavy fog or rain, strong wind and intense cold. Work in bad weather makes you tired and add risks such as ice on the ground and incorrect felling direction.

  • Do not start a product unless the guide bar, saw chain and all covers are assembled correctly. If not, the drive sprocket can come loose and cause serious injuries. See To start the product on page 14 for instructions.

HUSQVARNA 120i - Safety instructions for operation - 2

  • Look around you. Make sure that there is no risk that persons or animals touch or influence on your control of the product.

HUSQVARNA 120i - Safety instructions for operation - 3

  • Do not let children use or be near the product. The product is easy to start and children may be able to start it if they are not fully supervised. This can mean a risk of serious injury.
  • Remove the battery when you do not have full view of the product or leave the product for any length of time.
  • You must be stable on your feet in order to have full control of the product. Do not use the product if you are on a ladder or in a tree. Do not use the product if you are not on stable ground.

HUSQVARNA 120i - Safety instructions for operation - 4

If you are not careful, the risk of kickback increases. A kickback can occur if the kickback zone of the

guide bar accidentally touches a branch, tree or other objects.

HUSQVARNA 120i - Safety instructions for operation - 5

  • Do not hold the product with one hand. This product is not safely controlled with one hand.
  • Do not use the product above shoulder height and do not try to cut with the guide bar tip.

HUSQVARNA 120i - Safety instructions for operation - 6

  • Do not use a product in a situation where you can not call for help if an accident occur.
  • Stop the product and engage the chain brake before you move the product. Hold the product with the guide bar and saw chain pointing rearward. Put on a transportation guard on the guide bar before transportation or before you move it for any distance.
  • When you put the product on the ground, engage the chain brake and have a constant view of the product. Stop the product and remove the battery before you leave your product for any length of time.
  • There is a risk that wood chips get stuck in the drive system. This can cause the saw chain to get stuck. Always stop the product and remove the battery before you clean it.
  • Make sure that you can move around safely.
  • Examine the conditions and the terrain around you for possible obstacles such as roots, rocks, branches, ditches and more. Be careful when you do work on sloping ground.
  • The vibration level increases if you cut with cutting equipment that is incorrect or not correctly sharpened. Cutting hardwoods, such as broadleaf trees, causes more vibration than cutting softwoods, such as conifers.

HUSQVARNA 120i - Safety instructions for operation - 7

Overexposure to vibration can lead to circulatory damage or nerve damage in persons who have decreased 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 occur in the fingers, hands or wrists increases in cold temperatures.
- Prevent situations which you think is beyond your capability.
It is not possible to include each possible situation you can face when you use this product. Always be careful and use your common sense.

HUSQVARNA 120i - Safety instructions for operation - 8

Personal protective equipment

HUSQVARNA 120i - Personal protective equipment - 1

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

HUSQVARNA 120i - Personal protective equipment - 2

  • Most chainsaw accidents occur when the saw chain touches the operator. You must use approved personal protective equipment during operation. Personal protective equipment does not give you full protection from injuries but it decreases the degree of injury if an accident occurs. Speak to your servicing dealer for recommendations about which equipment to use.

  • Your clothing must be close-fitting but not limit your movements. Regularly do a check of the condition of the personal protective equipment.

  • Use an approved protective helmet.
  • Use approved hearing protection. Long-term exposure to noise can result in permanent damage to the hearing.
  • Use protective glasses or a face visor to decrease the risk of injury from thrown objects. The product can throw objects, such as wood chips, small pieces of wood and more, at large force. This can result in serious injury, especially to the eyes.
  • Use gloves with saw protection.
  • Use pants with saw protection.
  • Use boots with saw protection, steel toe-cap and non-slip sole.
    Always have a first-aid kit with you.
  • Risk of sparks. Keep fire extinguishing tools and a shovel near to prevent forest fires.

Safety devices on the product

HUSQVARNA 120i - Safety devices on the product - 1

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. Refer to Maintenance and checks of the safety devices on the product on page 22.
  • If the safety devices are defective, speak to your Husqvarna servicing dealer.

Keypad

The warning indicator flashes if the chain brake is engaged or if there is a risk of overload. The overload protection temporarily stops the product and you can not use the product until the temperature restores. If the indicator shows a solid light, turn to your servicing dealer.

HUSQVARNA 120i - Keypad - 1

The automatic stop function

The product has an automatic stop function that stops the product if you do not use it for one minute.

Chain brake and front hand guard

Your product has a chain brake that stops the saw chain if you get a kickback. The chain brake decreases the risk of accidents, but only you can prevent them.

HUSQVARNA 120i - Chain brake and front hand guard - 1

HUSQVARNA 120i - Chain brake and front hand guard - 2

WARNING: Do not engage in situations where there is a risk of kickback. Be careful when you use your product and make sure that the kickback zone of the guide bar does not touch an object.

HUSQVARNA 120i - Chain brake and front hand guard - 3

The chain brake engages (A) manually by your left hand or automatically by the inertia release mechanism. Push the front hand guard (B) forward to engage the chain brake manually. This movement starts a spring-loaded mechanism that stops the drive sprocket.

HUSQVARNA 120i - Chain brake and front hand guard - 4

How the chain brake is engaged depends on the force of the kickback. It also depends on the position of the product when the kickback zone hits an object. If you get a intense kickback while the kickback zone is farthest away from you the chain brake engages by the inertia release. If the kickback is small or the kickback zone is

nearer you the chain brake engages manually by your left hand.

HUSQVARNA 120i - Chain brake and front hand guard - 5

Use the chain brake as a parking brake when you start the product and when you move short distances. This decreases the risk that you or a person near you get hit by the saw chain.

HUSQVARNA 120i - Chain brake and front hand guard - 6

Pull the front hand guard rearward to disengage the chain brake.

HUSQVARNA 120i - Chain brake and front hand guard - 7

A kickback can be very sudden and intense. Most kickbacks are small and do not always engage the chain

brake. If a kickback occur when you use the product, hold tight around the handles and do not let go.

HUSQVARNA 120i - Chain brake and front hand guard - 8

The front hand guard also decreases the risk to hit the saw chain if your hand lets go of the front handle.

HUSQVARNA 120i - Chain brake and front hand guard - 9

In the felling position you can not engage the chain brake manually. The chain brake can in this position only be engaged by the inertia release mechanism.

HUSQVARNA 120i - Chain brake and front hand guard - 10

Power trigger lockout

The power trigger lockout prevents accidental operation of the power trigger. If you put your hand around the handle and press the power trigger lockout (A), it releases the power trigger (B). If you release the handle, the power trigger and the power trigger lockout move back to their initial positions.

HUSQVARNA 120i - Power trigger lockout - 1

Chain catcher

The chain catcher catches the saw chain if it breaks or comes loose. If you have the correct chain tension, the risk decreases. You also decrease the risk if you do the correct maintenance on the guide bar and saw chain. See Assembly on page 12 and Maintenance on page 22 for instructions.

HUSQVARNA 120i - Chain catcher - 1

Right hand guard

The right hand guard works as a protection for your hand if the saw chain breaks or comes loose. It also prevents interference from branches and twigs when you use the product.

HUSQVARNA 120i - Right hand guard - 1

Battery safety

HUSQVARNA 120i - Battery safety - 1

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

  • Only use the BLi batteries that we recommend for your product. The batteries are software encrypted.
  • Use the BLi batteries that are rechargeable 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 non-rechargeable.
  • 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 rain and wet conditions.
  • 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^ (14 F) and 40^ (104 F).
  • Do not clean the battery or the battery charger with water. See To do a check of the battery and the battery compartment on page 23.
  • Do not use a defective or damaged battery.
  • Keep batteries in storage away from metal objects such as nails, screws or jewelry.
  • Keep the battery away from children.

Battery charger safety

HUSQVARNA 120i - Battery charger safety - 1

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 defective or damaged battery charger.
  • 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^ (41^) and 40^ (104^) . 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.

Safety instructions for maintenance

HUSQVARNA 120i - Safety instructions for maintenance - 1

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.

Safety instructions for the cutting equipment

HUSQVARNA 120i - Safety instructions for the cutting equipment - 1

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

  • Only use the guide bar/saw chain combinations and filing equipment that we recommend. Refer to Technical data on page 31 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.

HUSQVARNA 120i - Safety instructions for the cutting equipment - 2

  • 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.

HUSQVARNA 120i - Safety instructions for the cutting equipment - 3

  • 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 tighten the saw chain on page 26.

HUSQVARNA 120i - Safety instructions for the cutting equipment - 4

  • 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.

HUSQVARNA 120i - Safety instructions for the cutting equipment - 5

Assembly

Introduction

HUSQVARNA 120i - Introduction - 1

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

To assemble the guide bar and saw chain

HUSQVARNA 120i - To assemble the guide bar and saw chain - 1

WARNING: Always remove the battery before you assemble or do maintenance on the product.

  1. Disengage the chain brake.

HUSQVARNA 120i - To assemble the guide bar and saw chain - 2

  1. Loosen the knob and remove the drive sprocket cover (chain brake) and the transportation guard (A).

HUSQVARNA 120i - To assemble the guide bar and saw chain - 3

  1. Put the guide bar on top of the bar bolt. Steer the guide bar to its most rear position. Lift the saw chain above the drive sprocket and engage it in the groove on the guide bar. Start on the top edge of the guide bar.

HUSQVARNA 120i - To assemble the guide bar and saw chain - 4

  1. Make sure that the edges of the cutting links face forward on the top edge of the guide bar.
  2. Assemble the drive sprocket cover and steer the chain adjuster pin to the hole in the guide bar.
  3. Make sure that the drive links of the saw chain fit correctly on the drive sprocket.

  4. Make sure that the saw chain is correctly engaged in the groove in the guide bar.

  5. Tighten the saw chain. See To tighten the saw chain on page 26 for instructions.

To assemble a spiked bumper

To assemble a spiked bumper, speak to your servicing dealer.

Operation

Introduction

HUSQVARNA 120i - Introduction - 1

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

To do a function check before you use the product

  1. Do a check of the chain brake to make sure that it operates correctly and that it is not damaged.
  2. Do a check of the rear right hand guard to make sure that it is not damaged.
  3. Do a check of the power trigger lockout to make sure that it operates correctly and that it is not damaged.
  4. Do a check of the keypad to make sure that it operates correctly.
  5. Make sure that there is no oil on the handles.
  6. Do a check to make sure that all parts are correctly attached and not damaged or missing.
  7. Do a check of the chain catcher to make sure that it is attached correctly.
  8. Do a check of the chain tension.
  9. Charge the battery and make sure that it is correctly attached to the product.
  10. Make sure that the saw chain stops when you release the power trigger.

HUSQVARNA 120i - To do a function check before you use the product - 1

Chain oil

All Husqvarna chainsaws have an automatic chain lubrication system. On some models the oil flow is also adjustable.

Think about the following when you select a chain oil:

HUSQVARNA 120i - Chain oil - 1

The oil tank lasts approximately three battery charges. This applies only if you use the correct chain oil. If the chain oil is too thin, it will not last that long.
- Chain oil must show good adherence to the saw chain and also keep its flow quality during warm summer and cold winter weather.
- Use an oil of the right grade (suitable viscosity range) to agree with the air temperature. In temperatures below 0^ (32^) some oils become too thick. This can cause the oil pump to overload and result in damage to the oil pump components.
- Use the recommended cutting equipment. A guide bar that is too long will use more chain oil.
- Turn to your servicing dealer when you select a chain oil.

HUSQVARNA 120i - Chain oil - 2

WARNING: Do not use waste oil! Waste oil is dangerous to you and the environment. Waste oil also causes damage to the oil pump, the guide bar and the saw chain.

HUSQVARNA 120i - Chain oil - 3

WARNING: If the lubrication of the cutting equipment is not sufficient, it can cause the saw chain to break. This can cause serious injury or death to the operator.

HUSQVARNA 120i - Chain oil - 4

CAUTION: If you use vegetable based chain oil, clean the groove in the guide bar and saw chain before long-term storage. Otherwise there is a risk of the saw chain oxidizing, which causes the saw chain to

become stiff and that the bar tip sprocket gets clogged.

To connect the battery charger

  1. Connect the battery charger to the voltage and frequency that is specified on the rating plate.
  2. Put the plug in a grounded socket outlet.

Note: The battery does not charge if the battery temperature is more than 50^ / 122^ . If the temperature is more than 50^ / 122^ , the battery charger makes the battery become cool.

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.

  1. Connect the battery to the battery charger.

HUSQVARNA 120i - To charge the battery - 1

  1. 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.

HUSQVARNA 120i - To charge the battery - 2

  1. When all LEDs on the battery come on, the battery is fully charged.

HUSQVARNA 120i - To charge the battery - 3

  1. To disconnect the battery charger from the mains socket, pull the plug. Do not pull the cable.
  2. Disconnect the battery from the battery charger.

Note: Refer to the battery and battery charger manuals for more information.

To start the product

  1. Do a check of the power trigger and power trigger lockout. See To do a check of the power trigger lockout on page 23.
  2. Push the front hand guard forward to engage the chain brake.

HUSQVARNA 120i - To start the product - 1

  1. Put the battery in the battery holder.

HUSQVARNA 120i - To start the product - 2

  1. Press on the lower part of the battery until you hear a click sound.

HUSQVARNA 120i - To start the product - 3

CAUTION: If the battery does not move into the battery holder easily, it is not attached correctly into the battery holder.

HUSQVARNA 120i - To start the product - 4

  1. Press and hold the start/stop button until the green LED light comes on.

HUSQVARNA 120i - To start the product - 5

To use the SavE function

This product has a power saving function, SavE. The SavE function decreases the chain speed and gives the longest operation time from the battery.

Note: The SavE function does not decrease the cutting power of the product.

  1. Press the SavE button on the keypad.
  2. Make sure that the green LED comes on.
  3. Press the SavE button again to disconnect the function. The green LED goes out.

HUSQVARNA 120i - To use the SavE function - 1

To stop the product

  1. Press and hold the start/stop button on the keypad until the green LED light comes off.

HUSQVARNA 120i - To stop the product - 1

  1. Pull out the battery and press the battery release buttons to remove the battery from the battery holder.

HUSQVARNA 120i - To stop the product - 2

HUSQVARNA 120i - To stop the product - 3

WARNING: Remove the battery when you do not use or when you do not have full vision of the product. This is to prevent accidental start.

What is kickback?

HUSQVARNA 120i - What is kickback? - 1

WARNING: If a kickback occurs when the saw chain rotates, it can cause serious injuries or death to the operator. It is vital that you understand the causes of kickback and that you can prevent them with correct working technique. If you are prepared you decrease the risk.

A kickback occurs when the kickback zone touches an object with a rotating saw chain. A kickback can occur

suddenly and with large force, which throws the product, guide bar and saw chain against the operator.

HUSQVARNA 120i - What is kickback? - 2

Kickback always occurs in the cutting plane of the guide bar. Usually, the product, guide bar and saw chain are thrown against the operator but can also move in a different direction. It is how you use the product when the kickback occurs that causes the direction of movement.

HUSQVARNA 120i - What is kickback? - 3

Kickback only occurs if the kickback zone of the guide bar touches an object. Do not let the kickback zone touch an object.

HUSQVARNA 120i - What is kickback? - 4

The smaller the bar tip radius the lower the risk of kickback.

A saw chain is made up of a number of links, which are available as standard and low kickback. You can decrease the effects of kickback by using the correct cutting equipment with kickback reduction.

HUSQVARNA 120i - What is kickback? - 5

WARNING: No saw chain fully prevents the dangerous situations that can occur during a kickback.

Common questions about kickback

  • Will the hand always engage the chain brake during a kickback?

No. It is necessary to use some force to push the front hand guard forward. If you do not use the force necessary, the chain brake will not be engaged. You must also hold the handles of the product stable with two hands during work. If a kickback occurs, it is possible that the chain brake does not stop the saw chain before it touches you. There are also some positions in which your hand can not touch the front hand guard to engage the chain brake. An example of this is in the felling position.

  • Will the inertia release mechanism always engage the chain brake during kickback?

No. First, the chain brake must operate correctly. Refer to Maintenance and checks of the safety devices on the product on page 22 for instructions about how to do a check of the chain brake. We recommend you to do this each time before you use the product. Second, the force of the kickback must be large to engage the chain brake. If the chain brake is too sensitive, it can engage during rough operation.

  • Will the chain brake always protect me from injury during a kickback?

No. The chain brake must operate correctly to give protection. The chain brake must also be engaged during a kickback to stop the saw chain. If you are near the guide bar, it is possible that the chain brake does not have time to stop the saw chain before it hits you.

HUSQVARNA 120i - Common questions about kickback - 1

WARNING: Only you and the correct working technique can prevent kickbacks.

To use the cutting technique

HUSQVARNA 120i - To use the cutting technique - 1

WARNING: Use full power when you cut and decrease the speed to idle after each cut.

HUSQVARNA 120i - To use the cutting technique - 2

CAUTION: Motor damage can occur if the motor runs for too long at full power without load. For example if the motor runs for too long without resistance from the saw chain during cutting.

You can use the product to cut through wood in two different positions.

  • To cut on the pull stroke is when you cut with the bottom of the guide bar. The saw chain pulls through the tree when you cut. In this position you have

better control of the product and the position of the kickback zone.

HUSQVARNA 120i - To use the cutting technique - 3

  • To cut on the push stroke is when you cut with the top of the guide bar. The saw chain pushes the product in the direction of the operator.

HUSQVARNA 120i - To use the cutting technique - 4

WARNING: Be careful when you cut on the push stroke. If the saw chain gets trapped in the trunk, the product can be pushed at you. You must prevent this force or there is a risk that the kickback zone of the guide bar touches the tree. This will lead to a kickback.

HUSQVARNA 120i - To use the cutting technique - 5

HUSQVARNA 120i - To use the cutting technique - 6

  1. Put the trunk on a saw horse or runners.

HUSQVARNA 120i - To use the cutting technique - 7

HUSQVARNA 120i - To use the cutting technique - 8

WARNING: Do not try to cut trunks in a pile. That increases the risk of kickback and can result in serious injury or death.

  1. Cut the trunks one by one.
  2. Remove the cut pieces from the cutting area.

HUSQVARNA 120i - To use the cutting technique - 9

WARNING: The kickback risk increases if you keep cutting pieces in the cutting area. It is also a risk that you do not keep your balance during operation.

To cut a trunk on the ground

HUSQVARNA 120i - To cut a trunk on the ground - 1

WARNING: Follow the steps below to prevent the saw chain from touching the ground or an object.

HUSQVARNA 120i - To cut a trunk on the ground - 2

Note: To cut trunks on the ground decreases the risk that the saw chain gets trapped or that the object breaks.

HUSQVARNA 120i - To cut a trunk on the ground - 3

  1. Cut through the trunk on the pull stroke. Do not let the saw chain touch the ground when you complete the kerf. Keep full power but be prepared for sudden accidents.

HUSQVARNA 120i - To cut a trunk on the ground - 4

  1. To prevent accidents, cut approximately 2/3 through the trunk and then stop. Turn the trunk and cut from the opposite side to complete the task.

HUSQVARNA 120i - To cut a trunk on the ground - 5

To cut a trunk with support on one end

HUSQVARNA 120i - To cut a trunk with support on one end - 1

WARNING: Follow the steps below to prevent the trunk from breaking before the cutting is complete.

HUSQVARNA 120i - To cut a trunk with support on one end - 2

  1. Cut on the push stroke approximately 1/3 through the trunk.
  2. Cut through the trunk on the pull stroke until the two kerfs touch.

HUSQVARNA 120i - To cut a trunk with support on one end - 3

To cut a trunk with support on two ends

HUSQVARNA 120i - To cut a trunk with support on two ends - 1

WARNING: Follow the steps below to prevent the saw chain from getting trapped in the trunk.

HUSQVARNA 120i - To cut a trunk with support on two ends - 2

  1. Cut on the pull stroke approximately 1/3 through the trunk.
  2. Cut through the remaining part of the trunk on the push stroke until the two kerfs touch.

HUSQVARNA 120i - To cut a trunk with support on two ends - 3

HUSQVARNA 120i - To cut a trunk with support on two ends - 4

WARNING: If the saw chain gets trapped in the trunk, stop the motor! Do not try to pull the product free. If you do, there is a risk of injury when the product suddenly breaks free. Use a lever to open up the cut and free the product.

To use the limbing technique

Note: If you are to use the limbing technique on thick branches, use the same procedure as for the cutting technique.

  1. Keep the larger, lower branches on the tree to give it support on the ground.
  2. Cut limbs one by one.
  3. Cut branches that are in tension from the bottom up.

HUSQVARNA 120i - To use the limbing technique - 1

  1. Cut branches piece by piece if necessary.

HUSQVARNA 120i - To use the limbing technique - 2

HUSQVARNA 120i - To use the limbing technique - 3

WARNING: Be careful when you remove small branches and do not cut bushes or many small branches at the same time. Small and light branches can get trapped by the saw chain and be thrown at you. This can mean that you can not keep control of the product, which can cause serious injury.

  1. Work on the left side of the trunk. Be as close as possible to the product for maximum control. Let the weight of the product be on the trunk if possible.

HUSQVARNA 120i - To use the limbing technique - 4

HUSQVARNA 120i - To use the limbing technique - 5

WARNING: Most kickback accidents occur during limbing. Do not touch the trunk, other limbs or objects with the guide bar tip or the kickback zone. Be careful with limbs that are in tension. They can be thrown at you and cause serious injury.

  1. Keep the trunk between you and the product as you move along the trunk.

To use the tree felling technique

HUSQVARNA 120i - To use the tree felling technique - 1

WARNING: You must have much experience to fell a tree. Operators without experience must not fell trees.

To keep a safe distance

  1. Make sure that persons around you keep a safe distance at a minimum of 2 1/2 tree lengths.

HUSQVARNA 120i - To keep a safe distance - 1

  1. Make sure that no person is in the risk zone before or during felling.

HUSQVARNA 120i - To keep a safe distance - 2

To calculate the felling direction

  1. Examine in which direction it is necessary for the tree to fall. The goal is to fell it in a position where you can limb and cut the trunk easily. It is also important that you are stable on your feet and can move about safely.

HUSQVARNA 120i - To calculate the felling direction - 1

WARNING: If it is dangerous or not possible to fell the tree in its natural direction, fell the tree in a different direction.

  1. Examine the natural fall direction of the tree. For example the tilt and bend of the tree, wind direction, the location of the branches and weight of snow.
  2. Examine if there are obstacles, for example other trees, power lines, roads and/or buildings around.

  3. Look for signs of damage and rot in the stem.

HUSQVARNA 120i - To calculate the felling direction - 2

WARNING: Rot in the stem can mean a risk that the tree falls before you complete the cutting.

  1. Make sure the tree has no damaged or dead branches that can break off and hit you during felling.
  2. Do not let the tree fall onto a different standing tree. It is dangerous to remove a caught tree and there is a high accident risk. Refer to To free a trapped tree on page 21.

HUSQVARNA 120i - To calculate the felling direction - 3

HUSQVARNA 120i - To calculate the felling direction - 4

WARNING: During critical felling operations, lift your hearing protection immediately when the sawing is complete. It is important that you hear sounds and warning signals.

To clear the trunk and prepare your path of retreat

Cut off all branches from your shoulder height and down.

  1. Cut on the pull stroke from the top down. Make sure that the tree is between you and the product.

HUSQVARNA 120i - To clear the trunk and prepare your path of retreat - 1

  1. Remove undergrowth from the work area around the tree. Remove all cut off material from the work area.
  2. Do a check of the area for obstacles such as stones, branches and holes. You must have a clear path of retreat when the tree starts to fall. Your path of retreat must be approximately 135 degrees away from the felling direction.

  3. The danger zone

  4. The path of retreat

  5. The felling direction

HUSQVARNA 120i - To clear the trunk and prepare your path of retreat - 2

To fell a tree

You use three cuts to fell a tree. These are the directional cuts, which include the top cut and the bottom cut, and the felling cut. If you make these cuts correctly, you can control the felling direction very accurately.

HUSQVARNA 120i - To fell a tree - 1

WARNING: Do not fell trees with a diameter larger than the bar length of your product, unless you have special training! This includes a much larger risk that the kickback zone of the guide bar touches the tree.

To make the directional cuts

  1. Make the directional cuts. Run the directional cuts 1/4 of the diameter of the tree. Make a 45^ angle between the top cut and bottom cut.

a) Make the top cut first. Align the felling direction mark (A) of the product with the felling direction of the tree (B). Stay behind the product and keep the tree on your right side. Cut with a pull stroke.
b) Make the bottom cut. Make sure that the end of the bottom cut is at the same point as the end of the top cut.

HUSQVARNA 120i - To make the directional cuts - 1

  1. Make sure that the directional cut line is perfectly horizontal and at right angles (90^) to the felling direction. The directional cut line goes through the point where the two directional cuts touch.

HUSQVARNA 120i - To make the directional cuts - 2

To make the felling cut

Note: The felling cut is made on the opposite side of the tree from the directional cuts.

  1. Make the felling cut approximately 3 - 5cm / 1.5 - 2 in above the bottom directional cuts. The cut must be perfectly horizontal.

HUSQVARNA 120i - To make the felling cut - 1

  1. If you have a spiked bumper, put it behind the felling hinge.

  2. Cut on the pull stroke, use full power and forward the saw chain/guide bar slowly into the tree. Make sure that the tree does not fall in an unwanted direction.

  3. Operate a wedge or breaking bar into the cut when the cut has accurate depth.

HUSQVARNA 120i - To make the felling cut - 2

  1. Complete the felling cut parallel with the directional cut line. Make sure that the distance between them is at a minimum of 1/10 of the trunk diameter. The section of the trunk that is not cut is the felling hinge. The felling hinge controls the felling direction.

HUSQVARNA 120i - To make the felling cut - 3

HUSQVARNA 120i - To make the felling cut - 4

WARNING: You have no control of the felling direction if the felling hinge is gone or if it is too thin. This also applies to if you have not made the directional cuts and felling cut correctly.

HUSQVARNA 120i - To make the felling cut - 5

  1. At this time, the tree will fall by its own force or with the aid of a wedge or breaking bar.

HUSQVARNA 120i - To make the felling cut - 6

Note: Use a guide bar that is longer than the diameter of the tree. This helps you to make the felling cut and directional cuts with one cutting stroke each. See Accessories on page 32 to find out which bar lengths we recommended for your product.

HUSQVARNA 120i - To make the felling cut - 7

To free a trapped tree

HUSQVARNA 120i - To free a trapped tree - 1

WARNING: It is very dangerous to remove a trapped tree and there is a high accident risk. Keep out of the risk zone and do not try to fell a trapped tree.

HUSQVARNA 120i - To free a trapped tree - 2

The safest procedure is to use one of the following winches:

  • Tractor-mounted

HUSQVARNA 120i - To free a trapped tree - 3

  • Portable

HUSQVARNA 120i - To free a trapped tree - 4

To cut trees and branches that are in tension

  1. Figure out which side of the tree or branch that is in tension.
  2. Figure out where the point of maximum tension is.

HUSQVARNA 120i - To cut trees and branches that are in tension - 1

  1. Examine which is the safest procedure to release the tension.

Note: In some situations the only safe procedure is to use a winch and not your product.

  1. Keep a position where the tree or branch can not hit you when the tension is released.

HUSQVARNA 120i - To cut trees and branches that are in tension - 2

  1. Make one or more cuts of sufficient depth necessary to decrease the tension. Cut at or near the point of maximum tension. Make the tree or branch break at the point of maximum tension.

HUSQVARNA 120i - To cut trees and branches that are in tension - 3

HUSQVARNA 120i - To cut trees and branches that are in tension - 4

WARNING: Do not cut straight through a tree or branch that is in tension.

HUSQVARNA 120i - To cut trees and branches that are in tension - 5

WARNING: Be very careful when you cut a tree that is in tension. There is a risk that the tree moves quickly before or after you cut it. Serious injury can occur if you are in an incorrect position or if you cut incorrectly.

  1. If you must cut across tree/branch, make 2 to 3 cuts, 1 in. apart and with a depth of 2 in.

HUSQVARNA 120i - To cut trees and branches that are in tension - 6

  1. Continue to cut more into the tree until the tree/ branch bends and the tension is released.

HUSQVARNA 120i - To cut trees and branches that are in tension - 7

  1. Cut the tree/branch from the opposite side of the bend, after the tension is released.

Maintenance

Introduction

HUSQVARNA 120i - Introduction - 1

WARNING: Read and understand the safety chapter before you do maintenance on the product.

Maintenance and checks of the safety devices on the product

To do a check of the front hand guard

Regularly do a check of the front hand guard and the inertia brake release.

  1. Make sure that the front hand guard is not damaged and that there are no defects, such as cracks.

HUSQVARNA 120i - To do a check of the front hand guard - 1

  1. Make sure that the front hand guard moves freely and that it is attached safely to the product.

HUSQVARNA 120i - To do a check of the front hand guard - 2

  1. Put the product, with the motor off, on a stump or other stable surface.

  2. Hold the rear handle and let go of the front handle. Let the product fall against the stump.

HUSQVARNA 120i - To do a check of the front hand guard - 3

  1. Make sure that the chain brake engages as the guide bar hits the stump.

To do a check of the brake trigger

  1. Put the product on stable ground and start it. See To start the product on page 14.

HUSQVARNA 120i - To do a check of the brake trigger - 1

WARNING: Make sure that the saw chain does not touch the ground or other objects.

  1. Wrap your fingers and thumbs around the handles and hold the product tight.

HUSQVARNA 120i - To do a check of the brake trigger - 2

  1. Apply full power and tilt your left wrist against the front hand guard to engage the chain brake. The saw chain must stop immediately.

HUSQVARNA 120i - To do a check of the brake trigger - 3

HUSQVARNA 120i - To do a check of the brake trigger - 4

WARNING: Do not let go of the front handle!

To do a check of the power trigger lockout

  1. Make sure that the power trigger and power trigger lockout move freely and that the return spring works correctly.

HUSQVARNA 120i - To do a check of the power trigger lockout - 1

  1. Press down the power trigger lockout and make sure that it goes back to its initial position when you release it.

HUSQVARNA 120i - To do a check of the power trigger lockout - 2

  1. Make sure that the power trigger is locked at the idle position when the power trigger lockout is released.

HUSQVARNA 120i - To do a check of the power trigger lockout - 3

  1. Start the product and apply full power.

  2. Release the power trigger and make sure that the saw chain stops and stays stationary. If the saw chain rotates when the power trigger is in the idle position, turn to your servicing dealer.

To do a check of the chain catcher

  1. Make sure that there is no damage on the chain catcher.
  2. Make sure that the chain catcher is stable and attached to the body of the product.

HUSQVARNA 120i - To do a check of the chain catcher - 1

To do a check of the keypad

  1. Start the product. See To start the product on page 14
  2. Press the start/stop button again.

  3. Make sure that the product stops when you press and hold the button. The green LED will go off.

HUSQVARNA 120i - To do a check of the keypad - 1

To do a check of the battery and the battery compartment

  1. Clean the battery and the battery compartment with a soft brush.

HUSQVARNA 120i - To do a check of the battery and the battery compartment - 1

  1. Make sure that the cooling slots and battery connectors are clean.
  2. Make sure that the battery is not damaged and there are no other defects, such as cracks.

HUSQVARNA 120i - To do a check of the battery and the battery compartment - 2

To do a check of the battery charger

  1. Make sure that the battery charger and the power supply cord is not damaged. Look for cracks and other defects.

To clean the cooling system

The product has a cooling system that keeps the temperature of the product as low as possible.

The cooling system includes an air intake on the left side of the product and a fan on the motor.

  1. Clean the cooling system with a brush weekly or more frequently if necessary.

HUSQVARNA 120i - To clean the cooling system - 1

  1. Make sure that the cooling system is not dirty or blocked.

HUSQVARNA 120i - To clean the cooling system - 2

CAUTION: A dirty or blocked cooling system can cause the product to become too hot. This causes damage to the piston and cylinder.

To sharpen the saw chain

Information about the guide bar and saw chain

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 32 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.

HUSQVARNA 120i - Information about the guide bar and saw chain - 1

  • Number of teeth on bar tip sprocket (T).

HUSQVARNA 120i - Information about the guide bar and saw chain - 2

  • 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.

HUSQVARNA 120i - Information about the guide bar and saw chain - 3

  • Number of drive links. The number of drive links is decided by the type of guide bar.

HUSQVARNA 120i - Information about the guide bar and saw chain - 4

  • Bar groove width, in/mm. The groove width in guide bar must be the same as the chain drive links width.

HUSQVARNA 120i - Information about the guide bar and saw chain - 5

  • Chain oil hole and hole for chain tensioner. The guide bar must align with product.

HUSQVARNA 120i - Information about the guide bar and saw chain - 6

  • Drive link width, mm/in.

HUSQVARNA 120i - Information about the guide bar and saw chain - 7

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).

HUSQVARNA 120i - General information about how to sharpen the cutters - 1

When you sharpen the cutter, think about the following:

Filing angle.

HUSQVARNA 120i - General information about how to sharpen the cutters - 2

  • Cutting angle.

HUSQVARNA 120i - General information about how to sharpen the cutters - 3

  • File position.

HUSQVARNA 120i - General information about how to sharpen the cutters - 4

  • Round file diameter.

HUSQVARNA 120i - General information about how to sharpen the cutters - 5

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 and the kickback risk at a minimum.

HUSQVARNA 120i - General information about how to sharpen the cutters - 6

WARNING: The force of the kickback increases a lot if you do not follow the sharpening instructions.

Note: Refer to Accessories on page 32 for information about sharpening of the saw chain.

To sharpen the cutters

  1. Use a round file and a file gauge to sharpen the cutting teeth.

HUSQVARNA 120i - To sharpen the cutters - 1

Note: Refer to Accessories on page 32 for information about which file and gauge that Husqvarna recommends for your saw chain.

  1. Apply the file gauge correctly on to the cutter. Refer to the instruction supplied with the file gauge.
  2. Move the file from the inner side of the cutting teeth and out. Decrease the pressure on the pull stroke.

HUSQVARNA 120i - To sharpen the cutters - 2

  1. Remove material from one side of all the cutting teeth.
  2. Turn the product around and remove material on the other side.
  3. 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. See Accessories on page 32 for instructions about how to receive the correct depth gauge setting for your saw chain.

HUSQVARNA 120i - General information about how to adjust the depth gauge setting - 1

HUSQVARNA 120i - General information about how to adjust the depth gauge setting - 2

WARNING: The risk of kickback increases if the depth gauge setting is too large!

To adjust the depth gauge setting

Before you adjust the depth gauge setting or sharpen the cutters, refer to To sharpen the cutters on page 25, 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 120i - To adjust the depth gauge setting - 1

  1. Use a flat file and a depth gauge tool to adjust the depth gauge setting. Only use Husqvarna depth gauge tool to get the correct depth gauge setting and bevel for the depth gauge.

  2. 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.

  1. Use the flat file to remove the part of the depth gauge that extends through the depth gauge tool.

HUSQVARNA 120i - To adjust the depth gauge setting - 2

To tighten the saw chain

HUSQVARNA 120i - To tighten the saw chain - 1

WARNING: A saw chain without the correct tension can come loose from the guide bar and cause serious injury or death.

The more you use a saw chain the longer it becomes. It is important to adjust the saw chain regularly.

Do a check of the saw chain tension each time you refill with chain oil.

Note: A new saw chain has a running-in period during which you must do a check of the tension more frequently.

  1. Fold the knob out until it opens.

HUSQVARNA 120i - To tighten the saw chain - 2

  1. Turn the knob counterclockwise to loosen the drive sprocket cover.

HUSQVARNA 120i - To tighten the saw chain - 3

  1. Turn the chain tensioner wheel to adjust the tension on the saw chain. The saw chain must be tight against the guide bar.

HUSQVARNA 120i - To tighten the saw chain - 4

Note: Turn the wheel down (+) for more tension and up (-) for less tension. The saw chain is tightened correctly when you can turn is easily by hand but is tight against the guide bar.

  1. Turn the knob clockwise to tighten the bar knob.

HUSQVARNA 120i - To tighten the saw chain - 5

  1. Fold down the knob to lock the tension.

HUSQVARNA 120i - To tighten the saw chain - 6

To do a check of the saw chain lubrication

Do a check of the saw chain lubrication each third battery charge.

  1. Start the product and let it run at 3/4 power. Hold the bar approximately 20cm (8 inches) above a light coloured surface.
  2. If the saw chain lubrication is correct, you will see a clear line of oil on the surface after 1 minute.

HUSQVARNA 120i - To do a check of the saw chain lubrication - 1

  1. If the saw chain lubrication is not correct, do the following checks.

a) Do a check of the oil channel in the guide bar to make sure that it is not blocked. Clean if necessary.

HUSQVARNA 120i - To do a check of the saw chain lubrication - 2

b) Do a check of the groove in the edge of the guide bar to make sure that it is clean. Clean if necessary.

HUSQVARNA 120i - To do a check of the saw chain lubrication - 3

c) Make sure that the bar tip sprocket turns freely and that the lubricating hole in the guide bar tip sprocket is not blocked. Clean and lubricate if necessary.

HUSQVARNA 120i - To do a check of the saw chain lubrication - 4

  1. If the saw chain lubrication does not work after following the steps above, speak to your servicing dealer.

To do the maintenance on the chain drive sprocket

The drive system has a drive sprocket.

HUSQVARNA 120i - To do the maintenance on the chain drive sprocket - 1

Do the following maintenance on the chain drive sprocket:

  1. Regularly do a check of the degree of wear on the drive sprocket. Replace the chain drive sprocket if there is too much wear.
  2. Replace the drive sprocket when you replace the saw chain.

To examine the cutting equipment

  1. Make sure that there are no cracks in rivets and links and that no rivets are loose. Replace if it is necessary.

HUSQVARNA 120i - To examine the cutting equipment - 1

  1. Make sure that the saw chain is easy to bend. Replace the saw chain if it is rigid.
  2. Compare the saw chain with a new saw chain to examine if the rivets and links are worn.

  3. Replace the saw chain when the longest part of the cutting tooth is less than 4mm / 0.16 in. Also replace the saw chain if there are cracks on the cutters.

HUSQVARNA 120i - To examine the cutting equipment - 2

To do a check of the guide bar

  1. Make sure that the oil channel is not blocked. Clean if it is necessary.

HUSQVARNA 120i - To do a check of the guide bar - 1

  1. Examine if there are burrs on the edges of the guide bar. Remove the burrs using a file.

HUSQVARNA 120i - To do a check of the guide bar - 2

  1. Clean the groove in the guide bar.

HUSQVARNA 120i - To do a check of the guide bar - 3

  1. Examine the groove in the guide bar for wear. Replace the guide bar if it is necessary.

HUSQVARNA 120i - To do a check of the guide bar - 4

  1. Examine if the guide bar tip is rough or very worn.

HUSQVARNA 120i - To do a check of the guide bar - 5

  1. 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.

HUSQVARNA 120i - To do a check of the guide bar - 6

  1. Turn the guide bar daily to extend its life cycle.

HUSQVARNA 120i - To do a check of the guide bar - 7

Maintenance schedule

HUSQVARNA 120i - Maintenance schedule - 1

WARNING: Remove the battery before you do maintenance.

The following is a list of the maintenance steps that you must do on the product. See Maintenance on page 22 for more information.

MaintenanceBefore useWeeklyMonthly
Clean the external parts of the product. X
Make sure that the power trigger and the power trigger lockout function correctly from a safety point of view.X
Clean the chain brake and make sure that it operates safely. Make sure that the chain catcher is not damaged. Replace it if necessary.X
Maintenance BeforeuseWeeklyMonthly
Turn the guide bar for more equal wear. Make sure that the lubrication hole in the guide bar is not clogged. Clean the bar groove.X
Make sure that the cutter and cutter guard have no cracks and that they are not damaged. Replace the cutter or cutter guard if they have cracks or if they have been exposed to impact.X
Make sure that the guide bar and saw chain have sufficient oil. X
Do a check of the saw chain. Look for cracks and make sure that the saw chain is not rigid or unusually worn. Replace if necessary.X
Sharpen the saw chain. Do a check of its tension and condition. Do a check for wear on the drive sprocket and replace is necessary.X
Clean the air inlet on the product. X
Make sure that the screws and nuts are tight. X
Make sure that the keypad works correctly and that it is not damaged. X
Use a file to remove burrs from the edges of the guide bar. X
Do a check of the connections between the battery and the product. Do a check of the connection between the battery and the battery charger.X
Empty and clean the oil tank. X
Blow through the product and battery cooling slots gently with compressed air. X

Troubleshooting

Troubleshooting schedule

Table 1: Keypad
Possible fault codes on the keypad of the product.

LED displayPossible faults Possible action
Warning indicator flashing. Chain brakeengaged. Pull back the front hand guard to release the chain brake.
Temperature deviation. Allow the product to cool down.
Overload. Cutting attachment jammed.The cutting attachment is jammed. Release the cutting attachment.
The power trigger and the activate button are pressed at the same time.Release the power trigger and the product is active.
Green activate LED flashing. Low battery voltage. Charge the battery.
Warning indicator lit. Service.Turn to your servicing dealer.

Troubleshooting the battery and/or the battery charger during charging.

Table 2: Battery

LED display Possible faults Possibleaction
Warning indicator flashing. The batteryis discharged. Charge the battery.
Temperature deviation. Use the batteryin surroundings where tempereatures are between -10 °C/14°F and 40°C/104°F.
Over voltage. Check that the mains voltage cor-re-sponds with that stated on the rating plate on the product.
Remove the battery from the battery charger.
Warning indicator lit. Cell difference istoo much (1V). Turn to your servicing deadealer.

Table 3: Battery charger

LED displayPossible faults Possible action
Warning indicator flashing. Temperaturedeviation. Use the battery in surround-dings where temperatures are between 5°C/41°F and 40°C/104°F.
Warning indicator lit. Turn to your serv-icing dealer.

Transportation, storage and disposal

Transportation and storage

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

  • Put the battery in storage where the temperature is between 5^ (41^) and 25^ (77^) and away from open sunlight.

  • Put the battery charger in storage where the temperature is between 5^ (41°F) and 45^ (113°F) and away from open sunlight.
  • Charge the battery 30% to 50% before you put it in storage for long periods.
  • Put the battery charger in storage in a space that is closed and dry.
  • Keep the battery away from the battery charger during storage. Do not let children and other not approved persons to touch the equipment. Keep the equipment in a space that you can lock.
  • Clean the product and do a full servicing before you put the product in storage for a long time.
  • Use the transportation guard on the product to prevent injuries or damage on the product during transportation and storage.
  • Attach the product safely during transportation.

Disposal of the battery, battery charger and product

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.

HUSQVARNA 120i - Disposal of the battery, battery charger and product - 1

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

Technical data

Technical data

120i
Platform CS100EU
Motor
Type BLDC (brushless) 36V
Features
Low energy mode savE
Lubrication system
Type of oil pump Automatic
Oil tank capacity, liter 0,20
Weight
Chainsaw without battery, guide bar, saw chain and empty chain oil tank, kg 2,95
Noise emissions1
Sound power level, measured dB(A) 98
Sound power level, guaranteed LWA dB(A) 101
Sound levels2
Equivalent sound pressure level at the operator's ear, dB(A) 88
Vibration levels33,8
Saw chain/guide bar
Recommended bar lengths, inch/cm 12/30
Usable cutting length, inch/cm 10/26
Type of drive sprocket/number of teeth Spur/6
Maximum chain speed / (savE), m/s 11,5 (10)

Accessories

Guide bar and saw chain combinations

The following cutting attachments are approved for Husqvarna 120i.

Guide bar Saw chain
Length, in Chainpitch, in Gauge, mmMax. nose radi- usType Length, drive links (no.)
12 3/8 1,1 7T Husqvarna H38 45

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.

∅xx
3811/64 in/4,5 mm75° 30°0.025 in/0,65 mm5056981-035795588-01

Approved batteries for the product

Battery BLi20
TypeLithium-ion
Battery capacity, Ah4.2 (VTC4)4 (HD2)
Voltage, V3636.5
Weight, lb/kg2.6/1.22.6/1.2

Approved battery chargers for the product

Battery charger QC80
Mains voltage, V 100-240
Frequency, Hz 50-60
Power, W 100

EC Declaration of Conformity

EC Declaration of conformity

Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declares under sole responsibility that the cordless battery chainsaw Husqvarna 120i (Platform CS100EU) from 2016's serial numbers and onwards (the year is clearly stated in plain text on the type plate with subsequent serial number), are in conformity with the requirements of the COUNCIL'S DIRECTIVES:

of May 17, 2006 "relating to machinery" 2006/42/EC.
of February 26, 2014 "relating to electromagnetic compatibility" 2014/30/EU.
of June 8, 2011 on the "restriction of use of certain hazardous substances" 2011/65/EU
of May 8, 2000 "relating to the noise emissions in the environment" 2000/14/EC.

The following standards have been applied: EN

60745-1:2009+A11:2010, EN

60745-2-13:2009+A1:2010, EN

55014-1:2006+A1:2009+A2:2011, EN 61000-4-2:2009

EN 61000-4-3:2006+A1:2008, EN 55014-2:2015, EN 61000-6-2:2005.

Notified body: TÜV Rheinland LGA Products GmbH,

Tillystrasse 2, D-90431 Nuernberg, Germany, 0197, has carried out EC type examination in accordance with the machinery directive's (2006/42/EC) article 12, clause 3b.

The certificate has the number: BM 50356394 0001

The supplied chainsaw conforms to the example that underwent EC type examination.

For information relating to noise emissions, see Technical data on page 31.

Huskvarna, 20181031

HUSQVARNA 120i - EC Declaration of conformity - 1

Pär Martinsson, Development manager (authorized representative for Husqvarna AB and responsible for technical documentation.)

Indhold

Indledning 35

Fejlfinding 62

Sikkerhed. 37

Transport, opbevaring og bortskaffelse 63

Montering. 45

Tekniske data. 64

Drift. 46

Tilbehør. 65

Vedligeholdelse 55

EU-overensstemmelseserklaering. 67

Indledning

Produktbeskrivelse

Husqvarna 120i er en motorsavsmodel med en batterimotor.

  1. Determine是如何向左挪动。
  2. Distinguish the two objects from each other.

HUSQVARNA 120i - Produktbeskrivelse - 1

Note: El的概率 is the probability of an outcome.

HUSQVARNA 120i - Produktbeskrivelse - 2

Datasétnicos

Datasétécnicos

KarkipyoranhampaidenhukumaraT

HUSQVARNA 120i - Datasétnicos - 1

Utsatt ine for regn.

HUSQVARNA 120i - Datasétnicos - 2

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Product information

Brand : HUSQVARNA

Model : 120i

Category : Saw