435i
EN Operator's manual 2-37
Contents
Introduction..................................................................... 2
Safety..............................................................................4
Assembly...................................................................... 12
Operation...................................................................... 14
Battery safety................................................................23
Maintenance................................................................. 24
Troubleshooting............................................................ 32
Transportation, storage and disposal........................... 33
Technical data.............................................................. 33
Accessories.................................................................. 34
Declaration of Conformity............................................. 36
Registered trademarks................................................. 37
Introduction
Intended use
This chainsaw for forest service is designed for forest
work such as felling, limbing and cutting.
Note: National regulations can set limit to the
operation of the product.
Product description
This product is a chainsaw model with an electric motor.
Work is constantly in progress to increase your safety
and efficiency during operation. Speak to your servicing
dealer for more information.
Product overview
31
11
25
18
19
14
15
16
9
1
7
8
2
13
17
20
12
10
4
5
6
3
32
33
24
26
21
22
23
29
30
27
28
1. Front hand guard
2. Front handle
3. User interface
4. Start/stop button
2 2190 - 004 - 12.01.2024
5. Warning indicator and battery indicator
6. SavE button
7. Rear handle with right hand guard
8. Information and warning decal
9. Air intake
10. Chain oil tank
11. Transportation cover
12. Power trigger lockout
13. Power trigger
14. Drive sprocket cover with bar knob
15. Chain tensioning screw
16. Chain catcher
17. Spiked bumper
18. Bar tip sprocket
19. Saw chain
20. Guide bar
21. Indicator for state of charge
22. Warning indicator
23. Power cord
24. Battery charger
25. Combination wrench
26. Warning indicator
27. Button, battery status
28. Battery status
29. Battery release button
30. Battery
31. Operator's manual
32. Bar knob
33. Drive sprocket cover with bar bolt
Symbols on the product
Risk of serious injury or death to the
operator or others. Be careful and use
the product correctly. Read the operator's
manual carefully and understand the
instructions before operation of the
product.
Use approved protective helmet, hearing
protection and eye protection.
Use 2 hands when you operate the
product.
This product complies with applicable EC
Directives.
This product complies to the applicable
UK regulations.
Noise emission to the environment
according to European Directive
2000/14/EC and New South Wales
legislation "Protection of the Environment
Operations (Noise Control) Regulation
2017". Noise emission data can be found
on the machine label and in the Technical
data chapter.
Rated voltage, V
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.
Chain brake, engaged (left). Chain brake,
disengaged (right).
Chain oil.
XX mm/XX
Max XT
Husqvarna HXX
Recommended cutting equipment in this
example: Bar length XX in (XX mm),
max. nose radius X Teeth, chain type
Husqvarna HXX.
-
+
Saw chain tension.
Direct current.
Protected against splashing water.
Environmental mark. The product or
package of the product is not domestic
waste. Recycle it at an approved disposal
location for electrical and electronic
equipment.
Chain direction.
2190 - 004 - 12.01.2024 3
yyyywwxxxxx
The rating plate shows se-
rial number. yyyy 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
Recycle this product at a recy-
cling station for electrical and
electronic equipment. (Applies
to Europe only)
Fail-safe transformer.
Use and keep the battery charger indoors
only.
Double insulation.
Manufacturer
Husqvarna
Drottninggatan 2, SE-561 82, Huskvarna, Sweden, tel:
+46-36-146500
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,
instructions, illustrations and specifications
provided with this power tool. Failure to
follow all instructions listed below may result
in electric shock, fire and/or serious injury.
• Save all warnings and instructions for future
reference. The term "power tool" in the warnings
refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.
Work area safety
• Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
• Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose
control.
Electrical safety
• Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce
risk of electric shock.
• Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
4 2190 - 004 - 12.01.2024
• Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
• Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool. Keep
cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk
of electric shock.
• When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of
electric shock.
• If operating a power tool in a damp location is
unavoidable, use a residual current device (RCD)
protected supply. Use of a RCD reduces the risk of
electric shock.
Personal safety
• Stay alert, watch what you are doing and use
common sense when operating a power tool. Do not
use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment
of inattention while operating power tools may result
in serious personal injury.
• Use personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, non-skid safety shoes, hard hat or hearing
protection used for appropriate conditions will reduce
personal injuries.
• Prevent unintentional starting. Ensure the switch is
in the off-position before connecting to power source
and/or battery pack, picking up or carrying the tool.
Carrying power tools with your finger on the switch
or energising power tools that have the switch on
invites accidents.
• Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached
to a rotating part of the power tool may result in
personal injury.
• Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
• Dress properly. Do not wear loose clothing or
jewellery. Keep your hair and clothing away from
moving parts. Loose clothes, jewellery or long hair
can be caught in moving parts.
• If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used. Use of dust collection
can reduce dust-related hazards.
• Do not let familiarity gained from frequent use of
tools allow you to become complacent and ignore
tool safety principles. A careless action can cause
severe injury within a fraction of a second.
Power tool use and care
• Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it
was designed.
•
Do not use the power tool if the switch does not
turn it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be
repaired.
• Disconnect the plug from the power source and/or
remove the battery pack, if detachable, from the
power tool before making any adjustments, changing
accessories, or storing power tools. Such preventive
safety measures reduce the risk of starting the
power tool accidentally.
• Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained
users.
• Maintain power tools and accessories. Check for
misalignment or binding of moving parts, breakage
of parts and any other condition that may affect the
power tool´s operation. If damaged, have the power
tool repaired before use. Many accidents are caused
by poorly maintained power tools.
• Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits etc.
in accordance with these instructions, taking into
account the working conditions and the work to be
performed. Use of the power tool for operations
different from those intended could result in a
hazardous situation.
• Keep handles and grasping surfaces dry, clean
and free from oil and grease. Slippery handles and
grasping surfaces do not allow for safe handling and
control of the tool in unexpected situations.
Battery tool use and care
• Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used
with another battery pack.
• Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
• When battery pack is not in use, keep it away from
other metal objects, like paper clips, coins, keys,
nails, screws or other small metal objects, that can
make a connection from one terminal to another.
Shorting the battery terminals together may cause
burns or a fire.
• Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes,
additionally seek medical help. Liquid ejected from
the battery may cause irritations or burns.
• Do not use a battery pack or tool that is damaged or
modified. Damaged or modified batteries may exhibit
unpredictable behaviour resulting in fire, explosion or
risk of injury.
• Do not expose a battery pack or tool to fire
or excessive temperature. Exposure to fire or
2190 - 004 - 12.01.2024
5
temperature above 130 °C / 266 °F 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.
General 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 chain saw by insulated gripping surfaces
only, because the saw chain may contact hidden
wiring. Saw chains contacting a ”live” wire may make
exposed metal parts of the chain saw ”live” and
could give the operator an electric shock.
• 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.
• Do not operate a chain saw in a tree, on a ladder,
from a rooftop, or any unstable support. Operation
of a chain saw in this manner could result in serious
personal injury.
1
• Always keep proper footing and operate the chain
saw only when standing on fixed, secure and level
surface. Slippery or unstable surfaces 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 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 instructions for lubricating, chain tensioning
and changing the bar and chain. Improperly
tensioned or lubricated chain may either brake or
increase the chance for kickback.
• Cut wood only. Do not use chain saw for purposes
not intended. For example: do not use chain saw for
cutting metal, plastic, masonry or non-wood building
materials. Use of the chain saw for operations
different than intended could result in a hazardous
situation.
• Do not attempt to fell a tree until you have
an understanding of the risks and how to avoid
them. Serious injury could occur to the operator or
bystanders while felling a tree.
• Follow all instructions when clearing jammed
material, storing or servicing the chain saw. Make
sure the switch is off and the battery pack is
removed. Unexpected actuation of the chain saw
while clearing jammed material or servicing may
result in serious personal injury.
• Do not operate a chain saw in a tree unless you
have been specifically trained to do so. Operation of
a chain saw in a tree without proper training could
increase the risk of serious personal injury.
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 devices 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 the result of chain saw 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.
1
If you are trained in special cutting and working techniques, and properly secured (lift bucket, ropes, safety
harness), deviations from this safety regulation can be made.
6 2190 - 004 - 12.01.2024
• 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 saw chain.
Decreasing the depth gauge height can lead to
increased kickback.
SAVE THESE INSTRUCTIONS.
General safety instructions
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
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.
Refer to
Safety devices on the product on page 9
and
Common questions about kickback on page 16
for instructions.
• Do not use a product, battery or battery charger that
is damaged or does not operate correctly.
• 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.
• 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 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. Refer to
Assembly on page 12
for
instructions.
• Look around you. Make sure that there is no risk
that persons or animals touch or influence on your
control of the product.
• 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
2190 - 004 - 12.01.2024
7
are on a ladder or in a tree. Do not use the product if
you are not on stable ground.
• Working in a tree requires the use of special
cutting and working techniques which must be
observed in order to reduce the increased risk
of personal injury. Never work in a tree unless
you have received specific, professional training for
such work, including training in the use of safety
and other climbing equipment, such as harnesses,
ropes, belts, climbing irons, snap hooks, carabiners,
etcetera.
• Never attempt to catch falling sections. Never cut in
the tree when you are only secured with one rope.
Always use two secured ropes.
• 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.
• 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.
• 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.
• 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.
Personal protective equipment
WARNING:
Read the warning
instructions that follow before you use the
product.
8 2190 - 004 - 12.01.2024
• 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 approved 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
WARNING:
Read the warning
instructions that follow before you use the
product.
• Do not use a product with safety devices that are
damaged or do not operate correctly.
• Do a check of the safety devices regularly. Refer to
Maintenance and checks of the safety devices on
the product on page 25
.
• If the safety devices are damaged or do not operate
correctly, speak to your Husqvarna servicing dealer.
Functions of the user interface
The user interface includes the start/stop button, the
SavE button, the battery status and the warning
indicator. 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 cannot use the product until the temperature
decreases. If the warning indicator shows a solid light,
speak to your servicing dealer.
For more information about the user interface, refer to
Operation on page 14
.
The automatic stop function
The product has an automatic stop function that stops
the product if you do not use it for 3 minutes.
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.
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.
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
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9
brake manually. This movement starts a spring-loaded
mechanism that stops the drive sprocket.
B
A
How the chain brake is engaged is in relation to the
force of the kickback and position of the product. If
you get an 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.
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
touches the saw chain.
Pull the front hand guard rearward to disengage the
chain brake.
A kickback can be very sudden and intense. Most
kickbacks are small and do not always engage the chain
brake. If a kickback occurs when you use the product,
hold tightly around the handles and do not let go.
The front hand guard also decreases the risk to touch
the saw chain if your hand lets go of the front handle.
In the felling position you cannot engage the chain brake
manually. The chain brake can in this position only be
engaged by the inertia release mechanism.
Power trigger lockout
The power trigger lockout prevents accidental operation
of the power trigger. If you push the power trigger
lockout forward (A) and then push the power trigger
lockout against the handle (B), it releases the power
trigger (C). If you release the handle, the power trigger
10
2190 - 004 - 12.01.2024
and the power trigger lockout move back to their initial
positions.
C
A
B
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
24
for instructions.
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.
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 work 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.
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.
2190 - 004 - 12.01.2024
11
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
Technical data on page 33
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
Accessories on
page 34
.
• 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.
Assembly
To assemble the guide bar and saw
chain (with bar knob)
WARNING: Always remove the battery
before you assemble or do maintenance on
the product.
1. Disengage the chain brake.
2. Loosen the bar knob.
12 2190 - 004 - 12.01.2024
3. Remove the drive sprocket cover and the
transportation ring (A).
A
4. 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.
5. Make sure that the edges of the cutters point forward
on the top edge of the guide bar.
6. Install the drive sprocket cover and steer the chain
adjuster pin to the hole in the guide bar.
7. Make sure that the drive links of the saw chain fit
correctly on the drive sprocket.
8. Make sure that the saw chain is correctly engaged in
the groove in the guide bar.
9. Apply tension to the saw chain. Refer to
Maintenance on page 24
for instructions.
10. Tighten the bar knob.
To assemble the guide bar and saw
chain (with bar bolt)
WARNING:
Always remove the battery
before you assemble or do maintenance on
the product.
1. Disengage the chain brake.
2. Loosen the bar nut and remove the drive sprocket
cover and the transportation ring (A).
A
3. 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.
4. Make sure that the edges of the cutters point forward
on the top edge of the guide bar.
5. Install the drive sprocket cover and steer the chain
adjuster pin to the hole in the guide bar.
6. Make sure that the drive links of the saw chain fit
correctly on the drive sprocket.
7. Make sure that the saw chain is correctly engaged in
the groove in the guide bar.
8. Tighten the bar nut with your fingers.
9. Tighten the saw chain. Refer to
To adjust the tension
of the saw chain (with bar knob) on page 29
for
instructions.
2190 - 004 - 12.01.2024
13
Operation
Introduction
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 (A) to make sure that
it operates correctly and that it is not damaged.
2. Do a check of the rear right hand guard (B) to make
sure that it is not damaged.
3. Do a check of the power trigger and the power
trigger lockout (C) to make sure that they operate
correctly and that they are not damaged.
4. Do a check of the keypad (D) to make sure that it
operates correctly.
5. Make sure that there is no oil on the handles (E).
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 (F) to make sure
that it is attached correctly.
8. Do a check of the chain tension (G).
9. Charge the battery (H) 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.
A
B H F G
C
D
E
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.
• Use Husqvarna chain oil for maximum saw chain life
and to prevent negative effects on the environment.
If Husqvarna chain oil is not available, we
recommend you to use a standard chain oil.
• Use a chain oil with good adherence to the saw
chain.
• Use a chain oil with correct viscosity range that
agrees with the air temperature.
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
Accessories on page 34
.
• Remove the cap to the chain oil tank.
• Fill the chain oil tank with chain oil.
• Attach the cap carefully.
Note: To see where the chain oil tank is on you
product, refer to
Introduction on page 2
.
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. The LED
on the battery charger flashes green one time.
Note:
The battery does not charge if the battery
temperature is more than 50 °C/122 °F. If the
temperature is more than 50 °C/122 °F, the battery
charger makes the battery become cool before the
battery charges.
14 2190 - 004 - 12.01.2024
To connect the battery to the battery
charger
Note: Charge the battery if it is the first time that you
use it. A new battery is only 30% charged.
1. Make sure that the battery is dry.
2. Put the battery in the battery charger.
3. 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.
4. When all LEDs on the battery come on, the battery is
fully charged.
A B C D
5. To disconnect the battery charger from the mains
socket, pull the plug. Do not pull the cable.
6. Remove the battery from the battery charger.
Note:
Refer to the battery and battery charger
manuals for more information.
Kickback information
WARNING: A kickback can cause
serious injury or death to the operator or
others. To decrease the risk you must know
the causes of kickback and how to prevent
them.
A kickback occurs when the kickback zone of the guide
bar touches an object. A kickback can occur suddenly
and with large force, which throws the product in the
direction of the operator.
Kickback always occurs in the cutting plane of the guide
bar. Usually, the product is 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 the movement.
Kickback only occurs if the kickback zone of the guide
bar touches an object. Do not let the kickback zone
touch an object.
A smaller bar tip radius decreases the force of the
kickback.
Use a low kickback saw chain to decrease the effects of
kickback. Do not let the kickback zone touch an object.
2190 - 004 - 12.01.2024
15
WARNING: No saw chain fully
prevents kickback. Always obey the
instructions.
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.
• 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 25
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.
WARNING:
Only you and the correct
working technique can prevent kickbacks.
To start the product
1. Do a check of the power trigger and power trigger
lockout. Refer to
To do a check of the power trigger
lockout on page 25
.
2. Engage the chain brake.
3. Put the battery in the battery holder.
CAUTION: Make sure that the
battery is installed correctly into the
battery holder. If the battery does not
move easily into the battery holder, the
position is not correct.
4. Push on the lower part of the battery until you hear a
click sound.
5. Push and hold the start/stop button until the green
LED comes on.
6. Release the chain brake.
To use the SavE function
The SavE function decreases the chain speed and the
power of the product.
1. Push the SavE button. The green LED comes on.
2. Push the SavE button again to disconnect the
function. The green LED goes off.
16
2190 - 004 - 12.01.2024
To stop the product
1. Push and hold the start/stop button until the green
LED light goes off.
2. Push the battery release buttons and remove the
battery from the battery holder to prevent accidental
start.
Pull stroke and push stroke
You can cut through wood with the product in 2 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.
• 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.
WARNING:
If the saw chain is
caught in the trunk, the product can be
pushed at you. Hold the product tightly
and make sure that the kickback zone
of the guide bar does not touch the tree
and causes a kickback.
To use the cutting technique
WARNING:
Use full power when you
cut and decrease the speed to idle speed
after each cut.
CAUTION: Do not let the motor operate
for too long without load. This can cause
damage to the motor.
1. Put the trunk on a saw horse or runners.
WARNING:
Do not cut trunks in a
pile. That increases the risk of kickback
and can cause serious injury or death.
2. Remove the cut pieces from the work area.
2190 - 004 - 12.01.2024
17
WARNING: Cut pieces in the work
area increase the risk of kickback and
that you cannot keep your balance.
To use the spiked bumper
1. Push the spiked bumper into the trunk of the tree.
2. Apply full power and rotate the product. Keep the
spiked bumper against the trunk. This procedure
makes it easier to apply the force necessary to cut
through the trunk.
To cut a trunk on the ground
1. Cut through the trunk on the pull stroke. Keep full
power but be prepared for sudden accidents.
WARNING: Make sure that the saw
chain does not touch the ground when
you complete the kerf.
2. Cut approximately ⅔ through the trunk and then
stop. Turn the trunk and cut from the opposite side.
To cut a trunk that has support on one end
WARNING:
Make sure that the trunk
does not break during cutting. Obey the
instructions below.
1. Cut on the push stroke approximately ⅓ through the
trunk.
2. Cut through the trunk on the pull stroke until the two
kerfs touch.
To cut a trunk that has support on two ends
WARNING: Make sure that the saw
chain does not get caught in the trunk during
cutting. Obey the instructions below.
1. Cut on the pull stroke approximately ⅓ through the
trunk.
2. Cut through the remaining part of the trunk on the
push stroke to complete the cut.
WARNING:
Stop the motor if the saw
chain gets caught in the trunk. Use a lever
to open up the kerf and remove the product.
Do not try to pull the product out by hand.
This can result in injury when the product
suddenly breaks free.
To use the limbing technique
Note:
For thick branches, use the cutting technique.
Refer to
To use the cutting technique on page 17
.
18 2190 - 004 - 12.01.2024
WARNING: There is a high accident
risk when you use the limbing technique.
Refer to
To cut trees and branches that are
in tension on page 22
for instructions how
to prevent kickback.
WARNING: Cut limbs one by one. Be
careful when you remove small limbs and do
not cut bushes or many small limbs at the
same time. Small limbs can get caught in the
saw chain and prevent safe operation of the
product.
Note: If it is necessary, cut the limbs piece by piece.
Cut the smaller branches (A) and (B) before you cut the
limb near the trunk (C).
A
B
C
1. Remove the limbs on the right side of the trunk.
a) Keep the guide bar on the right side of the trunk
and keep the body of the product against the
trunk.
b) Select the applicable cutting technique for the
tension in the branch.
WARNING:
If you are not sure
about how to cut the branch, speak
to a professional chainsaw operator
before you continue.
2. Remove the limbs on the top of the trunk.
a) Keep the product on the trunk and let the guide
bar move along the trunk.
b) Cut on the push stroke.
3. Remove the limbs on the left side of the trunk.
a) Select the applicable cutting technique for the
tension in the branch.
WARNING: If you are not sure
about how to cut the branch, speak
to a professional chainsaw operator
before you continue.
Refer to
To cut trees and branches that are in tension
on page 22
for instructions on how to cut branches that
are in tension.
To use the tree felling technique
WARNING:
You must have experience
to fell a tree. If possible, engage in
a training course in chainsaw operation.
2190 - 004 - 12.01.2024 19
Speak to an operator with experience for
more knowledge.
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.
2. Make sure that no person is in the risk zone before
or during felling.
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.
WARNING:
If it is dangerous or not
possible to fell the tree in its natural
direction, fell the tree in a different
direction.
2. 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.
3. Examine if there are obstacles, for example other
trees, power lines, roads and/or buildings around.
4. Look for signs of damage and rot in the stem.
WARNING:
Rot in the stem can
mean a risk that the tree falls before you
complete the cutting.
5. Make sure the tree has no damaged or dead
branches that can break off and hit you during
felling.
6. 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 22
.
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.
2. Remove undergrowth from the work area around the
tree. Remove all cut off material from the work area.
3. 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.
1. The danger zone
2. The path of retreat
3. The felling direction
20
2190 - 004 - 12.01.2024
1
2
2
1
3
To fell a tree
Husqvarna recommends you to make the directional
cuts and then use the safe corner method when you
fell a tree. The safe corner method helps you to make a
correct felling hinge and control the felling direction.
WARNING: Do not fell trees with a
diameter that is more than two times larger
than the guide bar length. For this, you must
have special training.
The felling hinge
The most important procedure during tree felling is to
make the correct felling hinge. With a correct felling
hinge, you control the felling direction and make sure
that the felling procedure is safe.
The thickness of the felling hinge must be equal and a
minimum of 10% of the tree diameter.
WARNING:
If the felling hinge is
incorrect or too thin, you have no control of
the felling direction.
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.
A
B
2. 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.
45º-70º
To use the safe corner method
The felling cut must be made slightly above the
directional cut.
WARNING:
Be careful when you cut
with the guide bar tip. Start to cut with the
lower section of the guide bar tip as you
make a bore cut into the trunk.
1. If the usable cutting length is longer than the tree
diameter, do these steps (a-d).
2190 - 004 - 12.01.2024
21
a) Make a bore cut straight into the trunk to
complete the felling hinge width.
b) Cut on the pull stroke until ⅓ of the trunk is left.
c) Pull the guide bar 5-10 cm/2-4 in rearward.
d) Cut through the remaining of the trunk to
complete a safe corner that is 5-10 cm/2-4 in
wide.
2. If the usable cutting length is shorter than the tree
diameter, do these steps (a-d).
a) Make a bore cut straight into the trunk. The bore
cut must extend 3/5 of the tree diameter.
b) Cut on the pull stroke through the remaining
trunk.
c) Cut straight into the trunk from the other side of
the tree to complete the felling hinge.
d) Cut on the push stroke, until ⅓ of the trunk is left,
to complete the safe corner.
3. Put a wedge in the kerf straight from behind.
4. Cut off the corner to make the tree fall.
Note: If the tree does not fall, hit the wedge until it
does.
5. When the tree starts to fall, use the path of retreat
to move away from the tree. Move a minimum of 5
m/15 ft away from the tree.
To free a trapped tree
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.
The safest procedure is to use one of the following
winches:
• Tractor-mounted
• Portable
To cut trees and branches that are in tension
1. Figure out which side of the tree or branch that is in
tension.
22
2190 - 004 - 12.01.2024
2. Figure out where the point of maximum tension is.
3. 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.
4. Keep a position where the tree or branch can not hit
you when the tension is released.
5. 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.
WARNING: Do not cut straight
through a tree or branch that is in
tension.
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.
6. If you must cut across tree/branch, make 2 to 3 cuts,
1 in. apart and with a depth of 2 in.
7. Continue to cut more into the tree until the tree/
branch bends and the tension is released.
8. Cut the tree/branch from the opposite side of the
bend, after the tension is released.
Battery safety
WARNING: Read the warning
instructions that follow before you use the
product.
• Only use the BLi batteries that we recommend for
your product. Refer to
Approved batteries on page
35
. The batteries are software encrypted.
• Use the BLi batteries that are rechargeable as a
power supply for the related Husqvarna products
only. Refer to
Approved batteries on page 35
. 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 °C (14
°F) and 40 °C (104 °F).
• Do not clean the battery or the battery charger with
water. Refer to
To do a check of the battery and the
battery holder on page 26
.
• Do not use a battery that is damaged or does not
operate correctly.
• Keep batteries in storage away from metal objects
such as nails, screws or jewelry.
• Keep the battery away from children.
2190 - 004 - 12.01.2024 23
Maintenance
Introduction
WARNING: Read and understand the
safety chapter 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. See
Maintenance on page 24
for more information.
Maintenance Before
use
Weekly Monthly
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
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 user interface 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
24 2190 - 004 - 12.01.2024
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 does not have
damages such as cracks.
2. Make sure that the front hand guard moves freely
and that it is attached safely to the product.
3. Put the product, with the motor off, on a stump or
other stable surface.
4. Hold the rear handle and let go of the front handle.
Let the product fall against the stump.
5. 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
Operation on page 14
.
WARNING:
Make sure that the saw
chain does not touch the ground or other
objects.
2. Wrap your fingers and thumbs around the handles
and hold the product tight.
3. Apply full power and tilt your left wrist against the
front hand guard to engage the chain brake. The
saw chain must stop immediately.
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
operates correctly.
2. Push the power trigger lockout forward (A) and
down (B). Hold the power trigger lockout against the
handle and make sure that it goes back to its initial
position when you release it.
A
B
2190 - 004 - 12.01.2024
25
3. Make sure that the power trigger is locked at the idle
position when the power trigger lockout is released.
4. Start the product and apply full power.
5. Release the power trigger and make sure that the
saw chain stops and stays stationary.
WARNING: If the saw chain rotates
when the power trigger is in the idle
position, speak 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.
To do a check of the functions of the user
interface
1. Start the product. Refer to
Operation on page 14
.
2. Push and hold the start/stop button.
3. Make sure that the product stops and that the green
LED goes off.
To do a check of the battery and the
battery holder
1. Clean the battery and the battery holder with a soft
brush.
2. Clean the cooling slots and battery connectors.
3. Make sure that the battery has no cracks or other
damages.
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 damages.
To clean the cooling system
The cooling system keeps the motor temperature down.
The cooling system includes the 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 it is necessary.
2. Make sure that the cooling system is not dirty or
blocked.
CAUTION:
A dirty or blocked
cooling system can cause the product to
become too hot. This causes damage to
the product.
26 2190 - 004 - 12.01.2024
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 34
, 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.
PITCH =
D
D
2
• 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).
A
B
When you sharpen the cutter, think about the following:
2190 - 004 - 12.01.2024
27
• Filing angle.
• Cutting angle.
• File position.
• Round file diameter.
It is not easy to sharpen a saw chain correctly without
the correct equipment. Use a Husqvarna recommended
file gauge. This will help you to keep maximum cutting
performance and the kickback risk at a minimum.
WARNING:
The force of the kickback
increases a lot if you do not follow the
sharpening instructions.
Note: Refer to
Accessories on page 34
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.
Note:
Refer to
Accessories on page 34
for information about which file and gauge that
Husqvarna recommends for your saw chain.
2. Apply the file gauge correctly on to the cutter. Refer
to the instruction supplied with the file gauge.
3. Move the file from the inner side of the cutting teeth
and out. Decrease the pressure on the pull stroke.
4. Remove material from one side of all the cutting
teeth.
5. Turn the product around and remove material on the
other side.
6. 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 34
for instructions about how to receive the correct depth
gauge setting for your saw chain.
A
B
C
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
28
, for instructions. We recommend you to adjust the
28
2190 - 004 - 12.01.2024
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.
1. 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.
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.
3. Use the flat file to remove the part of the depth
gauge that extends through the depth gauge tool.
To adjust the tension of the saw chain
(with bar knob)
WARNING:
A saw chain with an
incorrect tension can come loose from the
guide bar and cause serious injury or death.
A saw chain becomes longer when you use it. Adjust the
saw chain regularly.
1. Loosen the bar knob that holds the drive sprocket
cover.
2. Lift the front of the guide bar and turn the chain
tensioning wheel. Tighten the saw chain until it is
tight against the guide bar.
3. Tighten the bar knob and lift the front of the guide
bar at the same time.
4. Make sure that you can pull the saw chain around
freely by hand and that it does not hang from the
guide bar.
To adjust the tension of the saw chain
(with bar bolt)
WARNING:
A saw chain with an
incorrect tension can come loose from the
guide bar and cause serious injury or death.
A saw chain becomes longer when you use it. Adjust the
saw chain regularly.
1. Loosen the bar nut that holds the drive sprocket
cover. Use the combination wrench.
2. Lift the front of the guide bar and turn the chain
tensioning screw. Use the combination wrench.
2190 - 004 - 12.01.2024
29
3. Tighten the saw chain until it is tight against the
guide bar.
4. Tighten the bar nut with the combination wrench and
lift the front of the guide bar at the same time.
5. Make sure that you can pull the saw chain around
freely by hand and that it does not hang from the
guide bar.
Note: Refer to
Product overview on page 2
for the
position of the chain tensioning screw on your product.
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 20 cm (8 inches) above a light
colored surface.
2. If the saw chain lubrication is correct, you will see a
clear line of oil on the surface after 1 minute.
3. 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.
b) Do a check of the groove in the edge of the
guide bar to make sure that it is clean. Clean if
necessary.
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.
4. If the saw chain lubrication does not work after
following the steps above, speak to your servicing
dealer.
30
2190 - 004 - 12.01.2024
To do a check of the chain drive
sprocket
• Examine the chain drive sprocket for wear. Replace
the chain drive sprocket if it is necessary.
• Replace the chain drive sprocket each time that you
replace the saw chain. The concave side of the large
washers (A) must point in the direction of the drive
sprocket (B).
A
B
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.
2. Make sure that the saw chain is easy to bend.
Replace the saw chain if it is rigid.
3. Compare the saw chain with a new saw chain to
examine if the rivets and links are worn.
4. 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
1. Make sure that the oil channel is not blocked. Clean
if it is necessary.
2. Examine if there are burrs on the edges of the guide
bar. Remove the burrs using a file.
3. Clean the groove in the guide bar.
4. Examine the groove in the guide bar for wear.
Replace the guide bar if it is necessary.
5. Examine if the guide bar tip is rough or very worn.
6. 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.
2190 - 004 - 12.01.2024
31
7. Turn the guide bar daily to extend its life cycle.
Troubleshooting
User interface
LED screen Possible faults Possible solution
The warning in-
dicator flashes.
Chain brake is
engaged.
Disengage the chain brake.
Temperature
deviation.
Let the product to cool down.
Overload. The
saw chain can
not move.
Release the saw chain.
The power trig-
ger and the
start/stop but-
ton are pushed
at the same
time.
Release the power trigger to activate the product.
Green activate
LED flashing.
Low battery
voltage.
Charge the battery.
The warning in-
dicator is on.
Service. Speak to your servicing dealer.
Battery
Problem
Possible faults Possible solution
Green LED flashes. Low battery voltage. Charge the battery.
Red error LED flashes. The battery is empty. Charge the battery.
Temperature deviation. Use the battery in temperatures between
-10°C (14°F) and 40°C (104°F).
Overvoltage. Remove the battery from the battery charger.
Red error LED comes on. Cell difference is to much (1V). Speak to your servicing dealer.
32 2190 - 004 - 12.01.2024
Battery charger
LED display Possible faults Possible action
Warning indicator flashing. Temperature deviation. Use the battery in surroundings
where temperatures are between
5°C/41°F and 40°C/104°F.
Warning indicator lit. Turn to your servicing 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 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.
• Use the battery charger only when the surrounding
temperature is between 5°C/41°F and 40°C/104°F.
• Charge the battery 30% to 50% before you put it in
storage for long periods.
• Put the battery charger in storage in a space that is
closed and dry.
• Keep the battery away from the battery charger
during storage. Do not let children and other not
approved persons to touch the equipment. Keep the
equipment in a space that you can lock.
• Clean the product and do a full servicing before you
put the product in storage for a long time.
• Use the transportation guard on the product to
prevent injuries or damage on the product during
transportation and storage.
• Attach the product safely during transportation.
Disposal of the battery, battery charger
and product
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
Technical data
435i
Motor
Type BLDC (brushless) 36V
2190 - 004 - 12.01.2024 33
435i
Features
Low energy mode savE
Lubrication system
Type of oil pump Automatic
Oil tank capacity, l/cm
3
0.18/180
Weight
Chainsaw without battery, guide bar, saw chain and empty chain oil tank, kg 2.7/2.8 (Tool / Tool less drive sprock-
et cover)
Water protection level
IPX4 Yes
Noise emissions
2
Sound power level, measured dB(A) 101
Sound power level, guaranteed L
WA
dB(A) 103
Sound levels
3
Sound pressure level at the operator's ear, measured according to EN
62841-1
90
Vibration levels
4
Front handle m/s
2
3.5
Rear handle m/s
2
2.7
Saw chain/guide bar
Recommended bar lengths, in/cm 14-16/30-40
Usable cutting length, in/cm 13-15/33-38
Type of drive sprocket/number of teeth Spur/6
Maximum chain speed / (savE), m/s 20/(18)
Accessories
Guide bar and saw chain combinations
The following cutting attachments are approved for
Husqvarna 435i.
2
Noise emissions in the environment measured as sound power (L
WA
) in conformity with EC directive
2000/14/EC.
3
Reported data for sound pressure level for the machine has a typical statistical dispersion (standard deviation)
of 3 dB (A).
4
Vibration level, according to EN 62841-4-1. Reported data for vibration level has a typical statistical dispersion
(standard deviation) of 1 m/s
2
. Declared vibration data from measurements when the machine is fitted with a
bar length and recommended chain type. If the machine is fitted with a different bar length, the vibration level
may vary by max ± 1.5 m/s
2
.
34 2190 - 004 - 12.01.2024
Guide bar Saw chain
Length, in Chain pitch, in Gauge, mm Max. nose radius Type Length, drive
links (no.)
14
0.325 mini 1.1 8T
Husqvarna
SP21G
59
16 64
14
3/8 mini 1.3 9T Husqvarna S93G
52
16 56
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.
SP21G
5/32 in / 4.0
mm
60° 30° 0°
0.025 in/
0.65 mm
5950046-01 5950047-01
S93G
5/32 in / 4.0
mm
60° 30° 0°
0.025 in/
0.65 mm
5878067-01 5878090-01
Approved batteries
Battery
BLi30
Type Lithium-ion
Battery capacity, Ah 7.7
Nominal voltage, V 36
Weight, lb/kg 1.9
Approved battery chargers for the product
Battery charger
QC250
Mains voltage, V 200-240
Frequency, Hz 50-60
Power, W 250
2190 - 004 - 12.01.2024 35
Declaration of Conformity
EU Declaration of Conformity
We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel:
+46-36-146500, declare on our sole responsibility that
the product:
Description Battery-operated chainsaw
Brand Husqvarna
Type / Model 435i
Identification Serial numbers dating from 2024 and onwards
complies fully with the following EU directives and
regulations:
Regulation Description
2006/42/EC "relating to machinery"
2014/30/EMC "relating to electromagnetic compability"
2011/65/EU “on the restriction of the use of certain hazardous substances in electrical”
2000/14/EC ”relating to outdoor noise”
and that the following standards and/or technical
specifications are applied: EN 62841-1:2015
(IEC 62841-1:2014), EN 62841-4-1:2020, EN
ISO 12100:2010, EN 61000-6-1:2007, EN
62000-6-3:2007+A1:2011, EN IEC 63000:2018.
Certificate numbers: 0404/24/2590.
Notified body: 0404, RISE SMP Svensk Maskinprovning
AB, Box 4053, SE-904 03, Umeå has carried out EC
type examination in accordance with the machinery
directive's (2006/42/EC) article 12, clause 3b.
SMP Svensk Maskinprovning AB has also verified
agreement with annex V of the council's directive
2000/14/EC.
For information relating to noise emissions, refer to
Technical data on page 33
.
Huskvarna, 2024-01-15
Stefan Holmberg, R&D Director, Technology
Management, Husqvarna AB.
Responsible for technical documentation.
36 2190 - 004 - 12.01.2024
UK Declaration of Conformity
We, Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel:
+46-36-146500, declare on our sole responsibility that
the product:
Description Battery-operated chainsaw
Brand Husqvarna
Type / Model 435i
Identification Serial numbers dating from 2024 and onwards
complies fully with the following UK regulations:
Description
The Supply of Machinery (Safety) Regulations 2008
Electromagnetic Compatibility Regulations 2016
The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations
2012
The Noise Emission in the Environment by Equipment for use Outdoors Regulations 2001
and that the following standards and/or technical
specifications are applied: EN 62841-1:2015
(IEC 62841-1:2014), EN 62841-4-1:2020, EN
ISO 12100:2010, EN 61000-6-1:2007, EN
62000-6-3:2007+A1:2011, EN IEC 63000:2018.
Certificate number: 0404/24/2590.
Notified body: 0404, RISE SMP Svensk Maskinprovning
AB, Box 4053, SE-904 03, Umeå has carried out EC
type examination in accordance with the machinery
directive's (2006/42/EC) article 12, clause 3b.
SMP Svensk Maskinprovning AB has also verified
agreement with annex V of the council's directive
2000/14/EC.
For information relating to noise emissions, refer to
Technical data on page 33
.
Huskvarna, 2024-01-15
Stefan Holmberg, R&D Director, Technology
Management, Husqvarna AB.
Responsible for technical documentation.
UK Importer:
Husqvarna UK Ltd
Preston Road, Co. Durham
DL5 6UP
Registered trademarks
The word mark and logos are registered trademarks
owned by and any use of such marks by Husqvarna is
under license.
2190 - 004 - 12.01.2024 37
38 2190 - 004 - 12.01.2024
2190 - 004 - 12.01.2024 39
www.husqvarna.com
Original instructions
1143690-26
2024-01-15
