T542i XP
®
, T542i XP
®
G
EN Operator's manual 2-34
Contents
Introduction..................................................................... 2
Safety..............................................................................4
Assembly...................................................................... 12
Operation...................................................................... 13
Maintenance................................................................. 20
Troubleshooting............................................................ 29
Transportation, storage and disposal........................... 30
Technical data.............................................................. 31
Accessories.................................................................. 32
Declaration of Conformity............................................. 34
Registered trademarks................................................. 34
Introduction
Product description
This product is a battery operated chain saw.
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 for professional tree maintenance such
as pruning and to disassemble trees in sections.
Note: National regulations can set limit to the
operation of the product.
Product overview
27
28
10
9
2
1
19
1716
25 24 23
22 21
20
14
12
11
35
34
33
32
3130
29
26
13
15
18
8
4
3
5
4
3
T542i XPG
T542i XP
5
8
6
7
6
1. Front handguard and chain brake
2. User interface
3. On/Off button
4. SavE button
2 2120 - 009 - 23.04.2025
5. Battery indicator
6. Oil level indicator
7. Indicator for heat in the handles
8. Warning indicator
9. Information and warning decal
10. Top handle
11. Belt eyelet
12. Rope eyelet
13. Fan housing
14. Front handle
15. Chain oil tank
16. Power trigger lockout
17. Power trigger
18. Oil adjustment screw
19. Spiked bumper
20. Bar tip sprocket
21. Saw chain
22. Guide bar
23. Chain catcher
24. Chain tensioning screw
25. Drive sprocket cover
26. Guide bar cover
27. Battery charger (accessory)
28. Charging and error indicator on the charger
29. Combination wrench
30. Button, battery status
31. Battery status
32. Warning indicator
33. Battery release button
34. Battery (accessory)
35. Operator's manual
Note:
The battery and battery charger can look
different between different models.
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.
This product complies with applicable EC
Directives.
Noise emission to the environment label
as per EU (also including New South
Wales legislation) and UK directives
and regulations. The guaranteed sound
power level of the product is specified in
Declaration of Conformity on page 34
and on the label.
Use approved protection for feet, legs,
hands and arms.
Use 2 hands when you operate the
product.
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 (forward). Chain
brake, disengaged (rearward).
Indication of chain direction.
L-Max
XX mm / XX"
Maximum length of the guide bar.
Chain oil.
Rated voltage, V.
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.
2120 - 009 - 23.04.2025 3
If the product features
Bluetooth
®
wireless
technology. The Bluetooth
®
symbol will
be marked on the product name label.
Refer to
Bluetooth
®
wireless technology
on page 14
.
This saw should only be
used by persons who are
specially trained in tree
maintenance work. See
operator's manual!
yyyywwxxxxx
The rating plate or the la-
ser printing shows the 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.
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 machine safety warnings
WARNING: Read all safety warnings,
instructions, illustrations and specifications
provided with this machine. 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 "machine" in the warnings refers
to your mains-operated (corded) machine or battery-
operated (cordless) machine.
Work area safety
• Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
• Do not operate machines in explosive atmospheres,
such as in the presence of flammable liquids, gases
or dust.Machines create sparks which may ignite the
dust or fumes.
• Keep children and bystanders away while operating
a machine. Distractions can cause you to lose
control.
Electrical safety
• Machine plugs must match the outlet. Never modify
the plug in any way. Do not use any adapter plugs
with earthed (grounded) machines. Unmodified plugs
and matching outlets will reduce risk of electric
shock.
4 2120 - 009 - 23.04.2025
• 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 machines to rain or wet conditions.
Water entering a machine will increase the risk of
electric shock.
• Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the machine. Keep
cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk
of electric shock.
• When operating a machine 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 machine 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 machine. Do not
use a machine while you are tired or under the
influence of drugs, alcohol or medication. A moment
of inattention while operating machines 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 machine. Carrying machines with your finger
on the switch or energising machines that have the
switch on invites accidents.
• Remove any adjusting key or wrench before turning
the machine on. A wrench or a key left attached to
a rotating part of the machine may result in personal
injury.
• Do not overreach. Keep proper footing and balance
at all times. This enables better control of the
machine 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
machines allow you to become complacent and
ignore machine safety principles. A careless action
can cause severe injury within a fraction of a second.
Machine use and care
• Do not force the machine. Use the correct machine
for your application. The correct machine will do the
job better and safer at the rate for which it was
designed.
• Do not use the machine if the switch does not turn
it on and off. Any machine 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
machine before making any adjustments, changing
accessories, or storing machines. Such preventive
safety measures reduce the risk of starting the
machine accidentally.
• Store idle machines out of the reach of children and
do not allow persons unfamiliar with the machines
or these instructions to operate the machines.
Machines are dangerous in the hands of untrained
users.
• Maintain machines and accessories. Check for
misalignment or binding of moving parts, breakage
of parts and any other condition that may affect
the machines´s operation. If damaged, have the
machine repaired before use. Many accidents are
caused by poorly maintained machines.
• Keep cutting tools sharp and clean. Properly
maintained cutting machines with sharp cutting
edges are less likely to bind and are easier to
control.
• Use the machine, accessories and bits etc. in
accordance with these instructions, taking into
account the working conditions and the work to
be performed. Use of the machine 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 machine in unexpected situations.
Battery machine 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 machines 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.
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5
• Do not use a battery pack or machine 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 machine to
fire or excessive temperature. Exposure to fire or
temperature above 130 °C / 265 °F may cause
explosion.
• Follow all charging instructions and do not charge
the battery pack or machine 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 machine serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the machine 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
your clothing or body with the saw chain.
• Always hold the chain saw with your right hand
on the top 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 on a ladder, from a
rooftop, or any unstable support. Operation of a
chain saw in this manner could result in serious
personal injury.
• 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.
• 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.
• This chain saw is not intended for tree felling. Use of
the chain saw for operations different than intended
could result in serious injury to the operator or
bystanders.
• 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.
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.
• 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.
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2120 - 009 - 23.04.2025
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 not
an alternative to professional knowledge and
experience. If you do not feel sure about how
to operate this product, turn to a person with
professional knowledge and experience.
• 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 correctly and safely. Go to
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.
• This product has a increased risk of losing control.
Only persons who have special training in cutting
and working technique must operate this product in
a tree. The operator must have safety equipment
such as a lift, ropes and safety harness. Regular
chainsaws are recommended for all work at ground
level.
• Follow instructions on special cutting and working
techniques to decrease the risk of injury. Do not do
work in a tree unless you have professional training
for such work. This training includes safe climbing
techniques and work positions. You must learn how
to use equipment such as harnesses, ropes, belts,
climbing irons and carabiners.
• Do not cut with the kickback zone at the guide bar
tip.
• Do not touch a rotating saw chain. It can cause
serious injuries of death.
• Do not try to catch falling sections or make cuts if the
operator is only attached with one rope. Always use
two safety ropes.
• During felling operations, lift your hearing protection
immediately when the sawing is complete. It is
important that you hear sounds and warning signals.
• You must understand the effects of kickback and
how to prevent them before you use this product.
Refer to
Kickback information on page 15
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 use the product if you are tired, ill or while
under the influence of alcohol, drugs or medicine.
Do not use the product if you are in a condition that
can have a negative effect on your vision, alertness,
coordination or judgment. The risk of being tired
increases before the end of a work period.
• 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.
• Sometimes chips get stuck in the drive sprocket
cover causing the saw chain to jam. Always stop the
engine before cleaning.
• Make sure that there is no risk that persons or
animals touch or influence on your control of the
product.
• 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.
• Hold the product tightly with your right hand on the
top handle and your left hand on the front handle.
Put your fingers and thumbs around the handles.
This decreases the effect of kickback and lets you
2120 - 009 - 23.04.2025
7
keep control of the product. Do not let go of the
handles!
• Make sure that you have stable feet and that the saw
chain does not touch an object.
• Do not use the product above shoulder height and
try not to cut with the guide bar tip.
• Do not try pruning or limbing operations if you do not
have special training.
• 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 during operation. Always be careful
and use your common sense.
• Use the battery in temperatures between -10°C
(14°F) and 40°C (104°F).
Personal protective equipment
WARNING: Read the warning
instructions that follow before you use the
product.
• 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.
8
2120 - 009 - 23.04.2025
• 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 21
.
• If the safety devices are damaged or do not operate
correctly, speak to your Husqvarna servicing dealer.
Functions of the user interface (T542i XP)
The user interface includes the On/Off button, SavE
button, battery indicator, oil level indicator 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
Product overview on page 2
.
Functions of the user interface (T542i XPG)
The user interface includes the On/Off button, SavE
button, battery indicator, oil level indicator, indicator for
heat in the handels 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
Product overview on page 2
.
Automatic shutdown function
The product has an automatic shutdown function that
sets the product to Off if you do not operate 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 manually by your left hand or
automatically by the inertia release mechanism. Push
the front hand guard forward to engage the chain
brake manually. This movement starts a spring-loaded
mechanism that stops the drive sprocket.
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9
Pull the front hand guard rearward to disengage the
chain brake.
How the chain brake is engaged is in relation to the
force of the kickback and the 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.
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
and the power trigger lockout move back to their initial
positions.
A
B
C
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
10
2120 - 009 - 23.04.2025
correct maintenance on the guide bar and saw chain.
See
Assembly on page 12
and
Maintenance on page
20
for instructions.
Battery safety
WARNING: Read the warning
instructions that follow before you use the
product.
• Only use Husqvarna approved batteries. Refer to .
The batteries are software encrypted.
• Use Husqvarna approved batteries as a power
supply for the related Husqvarna products only.
Refer to
Accessories on page 32
. 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.
• 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 23
.
• 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.
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
approved battery chargers to charge Husqvarna
approved batteries. Refer to
Approved battery
chargers on page 33
.
• 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.
2120 - 009 - 23.04.2025
11
• Only use original spare parts.
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
Accessories on page 32
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 32
.
• 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
WARNING: Always remove the battery
before you assemble or do maintenance on
the product.
1. Disengage the chain brake.
2. Loosen the bar nut. Remove the drive sprocket
cover. Remove and discard the transport ring (A).
A
12 2120 - 009 - 23.04.2025
3. Install the guide bar on the bar bolt.
4. 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. Tighten the bar nut with your fingers.
10. Tighten the saw chain. Refer to
To adjust the tension
of the saw chain on page 26
for instructions.
To install the air intake cover (optional)
If you cut materials that cause much dust and small
particles in the air, an air intake cover is recommended
for operation.
1. Hold the air intake cover against the fan housing.
Make sure that you put the vertical mark on the air
intake cover on the right side of the mark on the fan
housing.
2. Carefully push the air intake cover against the fan
housing until you hear a click.
CLICK!
3. Push the air intake cover to the left until the vertical
marks align.
Operation
Introduction
WARNING: Read and understand the
safety chapter before you use the product.
Husqvarna Connect
Husqvarna Connect is a free app for your mobile device.
The Husqvarna Connect app gives extended functions
for your Husqvarna product.
• Extended product information.
• Information about, and help with, product parts and
servicing.
To start to use Husqvarna Connect
1. Download the Husqvarna Connect app on your
mobile device.
2. Register in the Husqvarna Connect app.
3. Follow the instruction steps in the Husqvarna
Connect app to connect and register the product.
2120 - 009 - 23.04.2025 13
Note: Husqvarna Connect app is not available for
download in all markets. Speak to your servicing
dealer for more information.
Husqvarna Fleet Services
™
Husqvarna Fleet Services
™
is a cloud solution that
gives the commercial fleet manager an overview of all
products. For more information about Husqvarna Fleet
Services
™
, refer to www.husqvarna.com.
To connect to the product with Husqvarna
Fleet Services
™
1. Download the Husqvarna Fleet Services
™
app to
your mobile device.
2. Log on to the Husqvarna Fleet Services
™
app.
3. Follow the instructions about how to pair the product
with Husqvarna Fleet Services
™
.
Bluetooth
®
wireless technology
Products with built-in Bluetooth
®
wireless technology
can connect to mobile devices and enables additional
functions.
The symbol for
Bluetooth
®
wireless technology comes
on when your mobile device is connected to the product.
Note: Husqvarna Fleet Services
™
cloud solution is
not available in all markets.
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 power trigger lockout to make sure
that it operates correctly and that it is not damaged.
3. Do a check of the keypad to make sure that it
operates correctly.
4. Make sure that there is no oil on the handles.
5. Do a check to make sure that all parts are correctly
attached and not damaged or missing.
6. Do a check of the chain catcher to make sure that it
is attached correctly.
7. Do a check of the chain tension.
8. Charge the battery and make sure that it is correctly
attached to the product.
9. Make sure that the saw chain stops when you
release the power trigger.
7
13924
8 5 6
Note: Refer to
Maintenance and checks of the
safety devices on the product on page 21
for
instructions on how to do the function check.
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 32
.
• Remove the cap to the chain oil tank.
• Fill the chain oil tank with chain oil.
• Attach the cap carefully.
14
2120 - 009 - 23.04.2025
Note: To see where the chain oil tank is on you
product, refer to
Product overview 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 less than 0 °C (32 °F) or 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.
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. Make sure that the battery is dry.
2. Put the battery in the battery charger.
Note:
The battery and battery charger can look
different between different models, but the procedure
is the same.
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.
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.
2120 - 009 - 23.04.2025
15
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.
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 21
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 22
.
2. Push the front hand guard forward to 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.
5. Push and hold the On/Off button until the display
comes on.
6. Move the front hand guard rearward to disengage
the chain brake.
7. Push the power trigger lockout forward (A) and down
(B).
16
2120 - 009 - 23.04.2025
A
B
C
8. Apply power with the power trigger (C) to run the
product.
WARNING: If you start the product in a
tree, engage the chain brake before you let
the product hang from a strop.
To use the SavE function
The SavE function decreases the chain speed and the
power of the product.
1. Push the SavE button quickly. The green LED
comes on.
2. Push the SavE button again to disconnect the
function. The green LED goes off.
To engage and disengage the heat in
the handles (T542i XPG)
The product has heated handles.
• Push and hold the SavE button for 1 second to
engage the heat in the handles. The indicator for
heat in the handles comes on.
• Push and hold the SavE button to disengage the
heat in the handles. The indicator for heat in the
handles goes off.
Oil level indicator
The oil level indicator shows when it is time to fill chain
oil.
1. When the oil level indicator comes on, fill with chain
oil. Refer to
To use the correct chain oil on page 14
.
2. Start the product and wait 1-2 minutes. The oil level
indicator goes off.
To stop the product
1. Push and hold the On/Off button until the display
comes off.
2. Push the battery release buttons and remove the
battery from the battery holder to prevent accidental
start.
General information about working
technique
Below we give you some general information about how
to use this product.
WARNING:
The information related to
working technique in this operator's manual
is not considered correct training to operate
this tree-service product. This product must
be used by tree-service operators with
special training only! Use without the correct
training can result in serious injuries. Do not
try any task that you do not feel sure of!
• 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
2120 - 009 - 23.04.2025
17
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: 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.
• Use full power when you cut.
• Let go of the power trigger after each cut.
CAUTION:
Motor damage can
occur if you run the motor for too long
at full power and without load. One
example is if you cut without resistance
from the saw chain.
To prepare the product for operation in
the tree
Ground operator
As a ground operator, do the steps that follow.
1. Examine the product.
2. Charge the battery.
3. Attach the end of an approved safety strop to the
rope eyelet.
Note: A safety strop makes sure that the product
does not hit the ground if it falls.
4. Make sure that there is a carabiner on the other end
of the safety strop.
5. Set the product to On.
6. Set the product to Off.
7. Engage the chain brake.
8. Lift the product to the operator in the tree. Use
ascent tools.
WARNING:
Make sure that the
product is safely attached when you lift
it to the operator in the tree.
Tree operator
As a tree operator, follow the instructions below.
1. Before you disconnect the safety strop from the
ascent tools, you must attach the product to the
harness. Attach the product to the harness through
the belt eyelet or a steel ring on the safety strop.
18
2120 - 009 - 23.04.2025
WARNING: Attach the safety strop
to 1 of the recommended connection
points on the harness.
WARNING: If you use only the
safety strop to attach the product to the
harness, lower the product fully down
with the safety strop. Do not let go of the
product from a height.
2. Use approved carabiners to attach the free end of
the safety strop to one of the connection points on
the harness. This is your primary connection point.
CAUTION: The safety strop must
only be attached to the rope eyelet.
3. Make sure that you are in a stable and safe position
to make the cut.
4. Release the product from the secondary connection
point, start the product and make the cut.
5. Engage the chain brake directly after the cut is
completed.
To operate the product in a tree
WARNING: Most accidents occur when
the operator does not have full control of the
product or the work position.
• Keep a safe work position.
• Cut horizontal sections at hip level and vertical
sections at solar plexus level.
• Hold the product with 2 hands.
• Make sure that you are stable on your feet and keep
a low lateral force when you cut vertical branches.
Steer the safety line through a different connection
point to remove or prevent increasing lateral forces.
You can also use an adjustable strop directly from
the harness to a different connection point.
• Use a foot loop to keep a safe work position.
• Do a check of the harness, belt and ropes at a
regular interval.
• If you must climb with the product, attach the product
to the rear connection point on the harness. The
rear connection point keeps the product clear from
climbing lines and makes sure that the weight has
central support down your spine.
WARNING: You must engage the
chain brake before you let the product
hang from a strop.
To remove a trapped product
1. Stop the product.
2. Attach the product safely to the tree inboard, against
the trunk side, of the cut or a different tool line.
3. Carefully pull the saw away from the kerf while you
lift the branch as necessary.
WARNING:
Do not try to pull the
product free. Risk of serious injury.
4. If it is necessary, use a hand saw or a second
chainsaw to release the product. Cut the branch at
a minimum of 30 cm/12 in from the caught product.
Make the cut on the outer end from where the
product is caught.
2120 - 009 - 23.04.2025
19
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.
Note: Husqvarna recommends to use a special
cleaning product. Speak to your Husqvarna servicing
dealer for more information.
The following is a list of the maintenance steps that you
must do on the product. In addition to the maintenance
specified in the maintenance schedule, let a Husqvarna
servicing dealer do servicing on the product regularly.
For information about the service intervals, speak to
your Husqvarna servicing dealer.
Maintenance Before
use
Weekly Monthly
Clean the external parts of the product and all areas behind the clutch cover.
Use a damp cloth and recommended Husqvarna cleaning product.
X
Clean the air intake and the air intake cover. Use a soft brush and/or recommen-
ded Husqvarna cleaning products. Refer to
To clean the cooling system on page
23
for instructions.
X
Make sure that the chain brake operates safely. Refer to
To do a check of the
brake trigger on page 22
for instructions.
X
Make sure that the On/Off button operates correctly. Refer to
To do a check of
the functions of the user interface on page 23
for instructions.
X
Make sure that the power trigger and the power trigger lockout operate correctly
from a safety point of view. Refer to
To do a check of the power trigger lockout
on page 22
for instructions.
X
Do a check of the chain catcher for damage. Refer to
To do a check of the chain
catcher on page 22
for instructions. Replace if it is necessary.
X
Clean the guide bar. Clean the bar groove and make sure that the lubrication
hole in the guide bar is not clogged. Turn the guide bar for more equal wear.
Refer to
To do a check of the guide bar on page 28
for instructions.
X
Do a test of the oil pump. Make sure that the guide bar and saw chain get
sufficient lubrication. Refer to
To adjust the chain oil flow on page 28
for
instructions.
X
Do a check of the saw chain for wear and cracks. Refer to
To examine the
cutting equipment on page 27
for instructions.
X
Sharpen the saw chain. Use recommended Husqvarna file and filing gauge.
Refer to
To sharpen the saw chain on page 23
for instructions.
X
Adjust the tension of the saw chain. Refer to
To adjust the tension of the saw
chain on page 26
for instructions.
X
Make sure that the external screws and nuts are tight. X
Do a check of the guide bar for wear and cracks. Do a check of the bar tip
sprocket. Sharpen the guide bar. Remove burrs from the edges of the guide
bar. Use a flat file. Refer to
To do a check of the guide bar on page 28
for
instructions.
X
20 2120 - 009 - 23.04.2025
Maintenance Before
use
Weekly Monthly
Do a check of the chain drive sprocket for wear. Refer to
To do a check of the
rim sprocket on page 27
for instructions. Replace if it is necessary.
X
Do a check of the battery for damage. Make sure that the battery release buttons
operate correctly and locks the battery in the product.
X
Lubricate the clutch drum bearing. Use bearing grease of high quality. X
Clean the chain oil tank. Use a lint free cloth. X
Do a check of the chain oil filter. Make sure that the chain oil filter is not clogged
and that it can move freely in the oil tank.
X
Drain the chain oil tank. Fill the chain oil tank with new chain oil. Husqvarna
chain oil is recommended for best protection. Refer to
To use the correct chain
oil on page 14
for instructions.
X
Do a check of the clutch, the clutch spring, the clutch drum and the clutch drum
bearing for damage or wear. Make sure that the clutch springs are intact.
X
Clean the battery holder, the connector and the cooling slots. Use a soft brush.
Do a check of the connector in the battery holder. Make sure that metal surfaces
are not damaged. Refer to
To do a check of the battery and the battery holder on
page 23
for instructions.
X
Clean the battery, the connectors and the cooling slots. Use a soft brush. Do a
check of the connectors on the battery. Make sure that metal surfaces are not
damaged. Refer to
To do a check of the battery and the battery holder on page
23
for instructions.
X
Clean the battery charger, the connectors and the cooling slots. Use a soft
brush. Do a check of the connectors on the battery charger. Make sure that
metal surfaces are not damaged.
X
Do a check of the brake band for damage or wear. Refer to
To do a check of
the brake band on page 21
. If it is necessary, speak to a Husqvarna servicing
dealer for replacement.
X
Replace the chain drive sprocket. Refer to
To do a check of the rim sprocket on
page 27
for instructions.
X
Maintenance and checks of the safety
devices on the product
To do a check of the brake band
1. Use a brush to remove wood dust, resin and dirt
from the chain brake and brake drum. Dirt and wear
can decrease the function of the brake.
2. Do a check of the brake band. The brake band
must be at a minimum of 0.6 mm/0.024 in. thick at
its thinnest point. Speak to a Husqvarna servicing
dealer for replacement.
To do a check of the front hand guard
Regularly do a check of the front hand guard.
1. Make sure that the front hand guard does not have
damages such as cracks.
2120 - 009 - 23.04.2025 21
2. Make sure that the front hand guard moves freely
and that it is attached safely to the product.
To do a check of the brake trigger
1. Push and hold the On/Off button to set the product to
On.
WARNING: Make sure that the saw
chain does not touch the ground or any
other object.
2. Hold the product tight. Put your hands around the
handles.
3. Apply full power and tilt your left wrist forward to
engage the chain brake.
4. Make sure that the saw chain stops directly.
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.
B
A
3. Make sure that the power trigger is locked at the idle
position when the power trigger lockout is released.
4. Set the product to On 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.
22
2120 - 009 - 23.04.2025
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. Push and hold the On/Off button to set the product to
On.
2. Push and hold the On/Off button to set the product to
Off.
3. Make sure that the product is turned off and that the
display 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 engine temperature
down. The cooling system includes the air intake on the
left side of the product and the 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.
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
2120 - 009 - 23.04.2025
23
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.
• 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 and it stresses the engine
unnecessarily. With a blunt saw chain you risk to
shorten the lifetime of the chainsaw. If the saw chain
is very blunt, there will be no wood chips but only fine
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:
• Filing angle.
24
2120 - 009 - 23.04.2025
• 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 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.
Note:
Refer to
Accessories on page 32
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 32
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
25
, for instructions. We recommend you to adjust the
2120 - 009 - 23.04.2025
25
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
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 and chain brake. Use the combination wrench.
2. Lift the front of the guide bar and turn the chain
tensioning screw. Use the combination wrench.
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 full speed. Hold
the bar approximately 20 cm (8 inches) above a light
coloured surface.
26
2120 - 009 - 23.04.2025
2. If the saw chain lubrication is correct, you will see a
clear line of oil on the surface less than 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.
To do a check of the rim sprocket
The clutch drum has a rim sprocket that can be
replaced.
• Make sure that the rim sprocket is not worn. If the
rim sprocket is worn, speak to your local Husqvarna
servicing dealer.
To lubricate the needle bearing
1. Pull the front hand guard rearward to disengage the
chain brake.
2. Loosen the bar nuts and remove the clutch cover.
Note: Some models have only one bar nut.
3. Put the product on a stable surface with the clutch
drum up.
4. Lubricate the needle bearing with Husqvarna grease
gun. For refil of grease use a bearing grease of high
quality.
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.
2120 - 009 - 23.04.2025
27
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.
7. Turn the guide bar daily to extend its life cycle.
To adjust the chain oil flow
WARNING: Stop the motor before you
make adjustments to the oil pump.
• Turn the adjustment screw for the oil pump. Use a
screwdriver or the combination wrench.
a) Turn the adjustment screw counterclockwise to
increase the oil flow.
b) Turn the adjustment screw clockwise to decrease
the oil flow.
28
2120 - 009 - 23.04.2025
Troubleshooting
User interface
LED screen Possible faults Possible solution
The warning indicator 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 On/Off button and the power trig-
ger is pushed at the same time.
Release the power trigger to activate
the product.
The indicator for heat in the handles
and the warning indicator flash when
you push the SavE button to engage
the heat in the handles function.
Error of the heat in the handles func-
tion.
Set the product to Off. Set the prod-
uct to On. If the heat in the handles
function still does not work, speak to
your Husqvarna servicing dealer.
Green activate LED flashing. Low battery voltage. Charge the battery.
The warning indicator is on. Service. Speak to your Husqvarna servicing
dealer.
Battery
40-B140X, 40-B220X, 40-B330X
1
Symptoms Cause Action
The battery error indicator flashes. The battery is empty. Charge the battery.
Heavy workload in combination with
very low battery temperature.
Make the battery warm. For example,
move it indoors or operate at low
speed until the battery is warm.
The battery does not operate. The
operating range of the battery is at
its limit.
Remove the battery from the product.
Let the battery rest, and then push
the battery indicator button.
The battery temperature indicator is
ON.
The battery is too cold or too hot to
use.
Keep the battery in an ambient tem-
perature between -10°C (14°F) and
40°C (104°F). When the battery has
the correct temperature, it can be
used again.
The battery temperature indicator
flashes.
The battery is near its temperature
limits.
Decrease the speed and/or workload.
Keep the battery in the preferred
temperature between +10°C (50°F)
and +30°C (86°F) for optimal per-
formance.
1
The troubleshooting may differ for other battery models. Refer to the operator's manual of the battery for
information about how to use the battery. Only use Husqvarna approved batteries.
2120 - 009 - 23.04.2025 29
The battery temperature indicator is
ON while the battery is in the charg-
er.
Temperature deviation, the battery is
too cold or too hot to charge.
Let the battery cool down or move
it indoors to warm it up. When the
battery has the correct temperature,
it can be charged again. Make sure
to use the charger where the ambient
temperature is between 5°C (41°F)
and 40°C (104°F). Keep the charger
away from sunlight. If the problem
continues, speak to your dealer.
The battery error indicator comes on. The battery has a critical error. Speak to your dealer.
Battery charger
40-C500X, 40-C750X
2
Symptoms Possible faults Possible procedure
The charging indicator on the
charger is yellow.
The battery error indicator flash-
es, or the battery temperature in-
dicator is on.
Temperature devia-
tion, the battery is too
cold or too hot to use
or charge.
If the battery is too hot, keep it connected to the charger.
The built-in fan of the charger decreases the temperature
of the battery. When the battery has the recommended
temperature, the charging starts automatically.
If the battery is too cold, move it indoors. When the
battery has the recommended temperature, continue the
charging.
Obey the temperature range for operation, refer to the
operator's manual of the battery charger. Keep the
charger away from sunlight. If the problem continues,
speak to your dealer.
The charging indicator on the
charger is yellow. The battery er-
ror indicator on the battery is on.
The battery has a
critical error.
Speak to your dealer.
The charging indicator on the
charger is red.
The charger has a
critical error.
Speak to your 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.
2
The troubleshooting may differ for other battery charger models. Refer to the operator's manual of the battery
charger for information about how to use the battery charger. Only use Husqvarna approved battery chargers.
30 2120 - 009 - 23.04.2025
• 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
T542i XP T542i XPG
Motor
Type BLDC (brushless) 36V BLDC (brushless) 36V
Features
Low energy mode savE savE
Lubrication system
Type of oil pump Adjustable Adjustable
Oil tank capacity, l/cm
3
0.18/180 0.18/180
Weight
Chainsaw without battery, guide bar, saw chain and emp-
ty chain oil tank, kg
2.9 3.0
Water protection level
IPX4 Yes Yes
Noise emissions
3
Sound power level, measured dB(A) 102 102
Sound power level, guaranteed L
WA
dB(A) 104 104
3
Noise emissions in the environment measured as sound power (L
WA
) in conformity with EC directive
2000/14/EC.
2120 - 009 - 23.04.2025 31
T542i XP T542i XPG
Sound levels
4
Equivalent sound pressure level at the operator's ear,
dB(A)
91 91
Vibration levels
5
Front handle m/s
2
4.7 4.7
Rear handle m/s
2
4.1 4.1
Saw chain/guide bar
Recommended bar lengths, in./cm 12-16/30-40 12-16/30-40
Usable cutting length, in./cm 11-15/28-38 11-15/28-38
Type of drive sprocket/number of teeth SM7: .325"/7 SM7: .325"/7
Maximum chain speed / (savE), m/s 24 (18) 24 (18)
Radio frequency data for Bluetooth
®
Frequency band, GHz 2.4-2.4835 2.4-2.4835
Output power, max dBm 0 0 0
Accessories
Guide bar and saw chain combinations
The following cutting attachments are approved for
Husqvarna T542i XP
®
, T542i XP
®
G.
Guide bar Saw chain
Length, in Chain pitch, in Gauge, mm Max. nose ra-
dius
Type Length, drive
links (no.)
Low kickback
12 0.325 mini 1.1 8T Husqvarna
SP21G
51 Yes
14 59
16 64
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.
4
Equivalent sound pressure level, according to ISO 22868:2011, is calculated as the time-weighted energy
total for different sound pressure levels under various working conditions. Typical statistical dispersion for
equivalent sound pressure level is a standard deviation of 1 dB (A).
5
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
.
32 2120 - 009 - 23.04.2025
SP21G
5/32 in / 4.0
mm
60° 30° 0°
0.025 in/
0.65 mm
5950046-01 5950047-01
Approved batteries for the product
Note: For maximum performance of the cutting
equipment, Husqvarna, recommends to use 1 of the
approved batteries that follow. It is possible to use
other batteries but then the performance of the cutting
equipment decreases.
Battery BLi200X BLi300 40-B220X 40-B330X
Type Lithium-ion Lithium-ion Lithium-ion Lithium-ion
Battery capacity, Ah 5.2 9.4 6.0 9.0
Nominal voltage, V 36 36 36 36
Weight, kg/lb 1.4/3.0 2.0/4.0 1.4/3.0 1.9/4.3
Approved battery chargers
Battery charger QC500 40-C750X
Input voltage, V 100-240 100-240
Frequency, Hz 50-60 50-60
Power, W 500 750
2120 - 009 - 23.04.2025 33
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 Chain Saw for tree service
Brand Husqvarna
Type / Model T542i XP
®
, T542i XP
®
G
Identification Serial numbers dating from 2023 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 “relating to restriction of hazardous substances”
2000/14/EC ”relating to the noise emissions in the environment”
2014/53/EU ”relating to radio equipment”
and that the following standards and/or
technical specifications are applied: EN
62841-1:2015/A11:2022 (IEC 62841-1:2014),
EN ISO 11681-2:2011+A1:2017, EN ISO
12100:2010, EN 61000-6-3:2007+A1:2011+AC:2012,
EN 61000-6-1:2007, EN IEC 63000:2018.
For products with Bluetooth
®
functionality also: ETSI EN
301 489-1 v.1.9.2, ETSI EN 301 489-17 v.3.2.4, ETSI
EN 300 328 v.2.2.2.
Certificate numbers: 0404/23/2585.
Notified body: 0404, SMP Svensk Maskinprovning AB,
Box 4053, SE-904 03 Umeå, Sweden 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 31
.
Huskvarna, 2023-09-15
Stefan Holmberg, R&D Director, Technology
Management, Husqvarna AB.
Responsible for technical documentation.
Registered trademarks
The
Bluetooth
®
word mark and logos are registered
trademarks owned by
Bluetooth SIG, inc.
and any use
of such marks by Husqvarna is under license.
34 2120 - 009 - 23.04.2025
2120 - 009 - 23.04.2025 35
www.husqvarna.com
Original instructions
1144673-26
2025-04-25
