436 Li, 536 LiXP
EN Operator's manual 2-36
Contents
Introduction..................................................................... 2
Safety..............................................................................
3
Assembly...................................................................... 12
Operation...................................................................... 14
Maintenance................................................................. 23
Troubleshooting............................................................ 31
Transportation, storage and disposal........................... 32
Technical data.............................................................. 33
Accessories.................................................................. 34
EC Declaration of Conformity....................................... 36
Introduction
Intended use
This product is for forest service such as felling, limbing
and cutting.
Note: National regulations can restrict the use of the
product.
Product description
Husqvarna
436 Li and 536 LiXP are chainsaw models
with a battery motor.
Work is constantly in progress to increase your safety
and efficiency during operation. Speak to your servicing
dealer for more information.
Product overview
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1. Front hand guard
2.
Front handle
3. Keypad
4. SavE button
5. Warning indicator
6. Start and stop button
7. Rear handle with right hand guard
8. Information and warning decal
9. Fan housing
10. Chain oil tank
11. Guide bar cover
12. Knob (436 Li)
13. Chain tensioner wheel (436 Li)
14. Drive sprocket cover (436 Li)
15. Power trigger lockout
16. Power trigger
2 421 - 001 - 10.01.2018
17. Spiked bumper
18.
Bar tip sprocket
19. Saw chain
20. Guide bar
21. Chain catcher
22. Chain tensioning screw
23. Drive sprocket cover (536 LiXP)
24. Charging LED
25. Warning indicator
26. Power cord
27. Combination wrench
28. Battery charger
29. Button, battery status
30. Battery status
31. Warning indicator
32. Battery release button
33. Battery
34. Operator's manual
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.
Wear approved protective helmet, hearing
and eye protection.
This product agrees with applicable EC
Directives.
Noise emission to the environment agrees
with applicable EC Directives. See emission
specification
Technical data on page 33
and on the label.
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 (right). Chain brake,
disengaged (left).
Chain oil fill.
The direction in which the saw chain rotates
and maximum length of the guide bar.
Direct current.
Environmental mark. The product or
package of the product is not domestic
waste. Recycle it at a recycling station for
electrical and electronic equipment.
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 certain markets.
Symbols on the battery and/or on the
battery charger
Recycle this product at a
recycling station for elec-
trical and electronic equip-
ment. (Applies to Europe
only)
Fail-safe transformer.
Use and keep the battery charger indoors
only.
Double insulation.
Safety
Safety definitions
The definitions below give the level of severity for each
signal word.
WARNING: Injury to persons.
421 - 001 - 10.01.2018 3
CAUTION: Damage to the product.
Note: This information makes the product easier to use.
General power tool safety warnings
WARNING: Read all safety warnings and all
instructions. Failure to follow the warnings
and instructions may result in electric shock,
fire and/or serious injury.
Note: Save all warnings and instructions for future
reference. The term "power tool" in the warnings refers
to your mains-operated (corded) power tool or battery-
operated (cordless) power tool.
Work area safety
• Keep work area clean and well lit. Cluttered or dark
areas invite accidents.
• Do not operate power tools in explosive
atmospheres, such as in the presence of flammable
liquids, gases or dust. Power tools create sparks
which may ignite the dust or fumes.
• Keep children and bystanders away while operating
a power tool. Distractions can cause you to lose
control.
Electrical safety
• Power tool plugs must match the outlet. Never
modify the plug in any way. Do not use any adapter
plugs with earthed (grounded) power tools.
Unmodified plugs and matching outlets will reduce
risk of electric shock.
• Avoid body contact with earthed or grounded
surfaces, such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
• Do not expose power tools to rain or wet conditions.
Water entering a power tool will increase the risk of
electric shock.
• Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool. Keep
cord away from heat, oil, sharp edges or moving
parts. Damaged or entangled cords increase the risk
of electric shock.
• When operating a power tool outdoors, use an
extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of
electric shock.
• If operating a power tool in a damp location is
unavoidable, use a ground fault circuit interrupter
(GFCI) protected supply. Use of a GFCI reduces the
risk of electric shock.
Personal safety
• Stay alert, monitor what you are doing and use
common sense when operating a power tool. Do not
use a power tool while you are tired or under the
influence of drugs, alcohol or medication. A moment
of inattention while operating power tools may result
in serious personal injury.
• Use personal protective equipment. Always wear
eye protection. Protective equipment such as dust
mask, non-skid safety shoes, hard hat, or hearing
protection used for appropriate conditions will reduce
personal injuries.
• Prevent unintentional starting. Ensure the switch is in
the OFF-position before connecting to a power
source and/or battery pack, picking up or carrying
the tool. Carrying power tools with your finger on the
switch or energising power tools that have the switch
on invites accidents.
• Remove any adjusting key or wrench before turning
the power tool on. A wrench or a key left attached to
a rotating part of the power tool may result in
personal injury.
• Do not overreach. Keep proper footing and balance
at all times. This enables better control of the power
tool in unexpected situations.
• Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves away
from moving parts. Loose clothes, jewellery or long
hair can be caught in moving parts.
• If devices are provided for the connection of dust
extraction and collection facilities, ensure these are
connected and properly used.
Use of dust collection
can reduce dust-related hazards.
• The vibration emission during actual use of the
power tool can differ from the declared total value
depending on the ways in which the tool is used.
Operators should identify safety measures to protect
themselves that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it is
running idle in addition to the trigger).
Power tool use and care
• Do not force the power tool. Use the correct power
tool for your application. The correct power tool will
do the job better and safer at the rate for which it
was designed.
• Do not use the power tool if the switch does not turn
it on and off. Any power tool that cannot be
controlled with the switch is dangerous and must be
repaired.
• Disconnect the plug from the power source and/or
the battery pack from the power tool before making
any adjustments, changing accessories, or storing
power tools. Such preventive safety measures
reduce the risk of starting the power tool
accidentally.
4 421 - 001 - 10.01.2018
• Store idle power tools out of the reach of children
and do not allow persons unfamiliar with the power
tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained
users.
• Maintain power tools. Check for misalignment or
binding of moving parts, breakage of parts and any
other condition that may affect the power tool´s
operation. If damaged, have the power tool repaired
before use. Many accidents are caused by poorly
maintained power tools.
• Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
• Use the power tool, accessories and tool bits etc. in
accordance with these instructions, taking into
account the working conditions and the work to be
performed. Use of the power tool for operations
different from those intended could result in a
hazardous situation.
Battery tool use and care
• Recharge only with the charger specified by the
manufacturer. A charger that is suitable for one type
of battery pack may create a risk of fire when used
with another battery pack.
• Use power tools only with specifically designated
battery packs. Use of any other battery packs may
create a risk of injury and fire.
• When battery pack is not in use, keep it away from
other metal objects, like paper clips, coins, keys,
nails, screws or other small metal objects, that can
make a connection from one terminal to another.
Shorting the battery terminals together may cause
burns or a fire.
• Under abusive conditions, liquid may be ejected from
the battery; avoid contact. If contact accidentally
occurs, flush with water. If liquid contacts eyes,
additionally seek medical help. Liquid ejected from
the battery may cause irritations or burns.
Service
• Have your power tool serviced by a qualified repair
person using only identical replacement parts. This
will ensure that the safety of the power tool is
maintained.
Chain saw safety warnings
• Keep all parts of the body away from the saw chain
when the chain saw is operating. Before you start
the chain saw, make sure the saw chain is not
contacting anything. A moment of inattention while
operating chain saws may cause entanglement of
you clothing or body with the saw chain.
• Always hold the chain saw with your right hand on
the rear handle and your left hand on the front
handle. Holding the chain saw with a reversed hand
configuration increases the risk of personal injury
and should never be done.
• Hold the power tool by insulated gripping surface
only, because the saw chain may contact hidden
wiring or its own cord. Saw chain contacting a ”live”
wire may make exposed metal parts of the power
tool ” live” and could give the operator an electric
shock.
• Wear safety glasses and hearing protection. Further
protective equipment for head, hands, legs and feet
is recommended. Adequate protective clothing will
reduce personal injury by flying debris or accidental
contact with the saw chain.
• Do not operate a chain saw in a tree. Operation of
chain saw while up a tree may result in personal
injury.
• Always keep proper footing and operate the chain
saw only when standing on fixed, secure and level
surface. Slippery or unstable surfaces such as
ladders may cause a loss of balance or control of the
chain saw.
• When cutting a limb that is under tension be alert for
spring back. When the tension in the wood fibres is
released the spring loaded limb may strike the
operator and/or throw the chain saw out of control.
• Use extreme caution when cutting brush and
saplings. The slender material may catch the saw
chain and be whipped forward toward you or pull you
off balance.
• Carry the chain saw by the front handle with the
chain saw switched off and away from your body.
When transporting or storing the chain saw always fit
the guide bar cover. Proper handling of the chain
saw will reduce the likelihood of accidental contact
with the moving saw chain.
• Follow instruction for lubricating, chain tensioning
and changing accessories. Improperly tensioned or
lubricated saw chain may either brake or increase
the chance of kickback.
• Keep handles dry, clean and free from oil and
grease.
Greasy, oily handles are slippery causing
loss of control.
• Cut wood only. Do not use chain saw for purposes
not intended. For example: do not use chain saw for
cutting plastic, masonry or nonwood building
materials. Use of the chain saw for operations
different than intended could result in a hazardous
situation.
• We strongly recommend that first time users practice
sawing logs on a saw horse or cradle.
Causes and operator prevention of kickback
Kickback may occur when the nose or tip of the guide
bar touches an object, or when the wood closes in and
pinches the saw chain in the cut. Tip contact in some
cases may cause a sudden reverse reaction, kicking the
guide bar up and back towards the operator. Pinching
the saw chain along the top of the guide bar may push
the guide bar rapidly back towards the operator. Either
of these reactions may cause you to lose control of the
saw which could result in serious personal injury. Do not
rely exclusively upon the safety devises built into your
421 - 001 - 10.01.2018 5
saw. As a chain saw user, you should take several steps
to keep your cutting jobs free from accident or injury.
Kickback is a result of tool misuse and/or incorrect
operating procedures or conditions and can be avoided
by taking proper precautions as given below:
• Maintain a firm grip, with thumbs and fingers
encircling the chain saw handles, with both hands on
the saw and position your body and arm to allow you
to resist kickback forces. Kickback forces can be
controlled by the operator, if proper precautions are
taken. Do not let go of the chain saw.
• Do not overreach and do not cut above shoulder
height. This helps prevent unintended tip contact and
enables better control of the chain saw in
unexpected situations.
• Only use replacement bars and chains specified by
the manufacturer. Incorrect replacement bars and
chains may cause chain breakage and/or kickback.
• Follow the manufacturer’s sharpening and
maintenance instructions for the saw chain.
Decreasing the depth gauge height can lead to
increased kickback.
SAVE THESE INSTRUCTIONS.
General safety instructions
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.
See
What is kickback? on page 16
and
Common
questions about kickback on page 17
for
instructions.
• Do not use a product, battery or battery charger that
is defective.
• Do not touch a rotating saw chain. It can cause
serious injuries of death.
• Do not use the product if you are tired, while under
the influence of alcohol or drugs, medicine or
anything that could have a negative effect on your
vision, alertness, coordination or judgment.
• Do not use the product in bad weather, for example,
heavy fog or rain, strong wind and intense cold.
Work in bad weather makes you tired and add risks
such as ice on the ground and incorrect felling
direction.
• Do not start a product unless the guide bar, saw
chain and all covers are assembled correctly. If not,
the drive sprocket can come loose and cause
serious injuries. See
Assembly on page 12
for
instructions.
6 421 - 001 - 10.01.2018
• 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
are on a ladder or in a tree. Do not use the product if
you are not on stable ground.
• 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.
421 - 001 - 10.01.2018 7
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 does occur. Turn to your
servicing dealer for recommendations about which
equipment to use.
•
Use the correct protection for your arms. 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.
• Always use protective glasses or a face visor to
decrease the risk of injury from thrown objects. The
product can throw objects such as wood chips, small
pieces of wood and more, at large force. This can
result in serious injury, especially to the eyes.
• Use gloves with saw protection.
• Use pants with saw protection.
• Use boots with saw protection, steel toe-cap and
non-slip sole.
• Always have a first aid kit with you.
• Sparks can come from the product. Have fire
extinguishing tools and a shovel available 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 damaged safety
components. The safety equipment must go through
inspection and maintenance regularly. See
Maintenance and checks of the safety devices on
the product on page 23
for instructions. Turn to
your servicing dealer for repair if an inspection of a
safety device is not approved.
WARNING: Failure to do maintenance
correctly can decrease the product life cycle
and increase the risk of accidents. All
servicing and/or repair work must also be
done by a professional. Turn to your
servicing dealer for more information.
Note: See
Product overview on page 2
to find where the
safety devices are located on your product.
Keypad
The warning indicator flashes if the chain brake is
engaged or if there is a risk of overload. The overload
protection temporarily stops the product and you can not
use the product until the temperature restores. If the
indicator shows a solid light, turn to your servicing
dealer.
The automatic stop function
The product has an automatic stop function that stops
the product if you do not use it for one minute.
8 421 - 001 - 10.01.2018
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
brake manually. This movement starts a spring-loaded
mechanism that stops the drive sprocket.
B
A
How the chain brake is engaged depends on the force of
the kickback. It also depends on the position of the
product when the kickback zone hits an object. If you get
a intense kickback while the kickback zone is farthest
away from you the chain brake engages by the inertia
release. If the kickback is small or the kickback zone is
nearer you the chain brake engages manually by your
left hand.
Use the chain brake as a parking brake when you start
the product and when you move short distances. This
decreases the risk that you or a person near you get hit
by the saw chain.
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
421 - 001 - 10.01.2018 9
brake. If a kickback occur when you use the product,
hold tight around the handles and do not let go.
The front hand guard also decreases the risk to hit the
saw chain if your hand lets go of the front handle.
In the felling position you can not engage the chain
brake manually. The chain brake can in this position
only be engaged by the inertia release mechanism.
Power trigger lockout
The power trigger lockout prevents accidental operation
of the power trigger. If you put your hand around the
handle and press the power trigger lockout (A), it
releases the power trigger (B). If you release the handle,
the power trigger and the power trigger lockout move
back to their initial positions.
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
23
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 safety
WARNING: Read the warning instructions
that follow before you use the product.
• Only use the Husqvarna BLi batteries that we
recommend for your product. The batteries are
software encrypted.
• Use the Husqvarna BLi batteries that are
rechargable as a power supply for the related
Husqvarna products only. To prevent injury, do not
use the battery as a power supply for other devices.
• Risk of electrical shock. Do not connect the battery
terminals to keys, screws or other metal. This can
cause a short circuit of the battery.
• Do not use batteries that are non-rechargable.
• Do not put objects into the air slots of the battery.
• Keep the battery away from sunlight, heat or open
flame. The battery can blow up and cause burns
and/or chemical burns.
• Keep the battery away from rain and wet conditions.
• Keep the battery away from microwaves and high
pressure.
• Do not try to disassemble or break the battery.
10 421 - 001 - 10.01.2018
• 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. See
Maintenance on page 23
.
• Do not use a defective or damaged battery.
• Keep batteries in storage away from metal objects
such as nails, screws or jewelry.
• Keep the battery away from children.
Battery charger safety
WARNING: Read the warning instructions
that follow before you use the product.
• Risk of electrical shock or short circuit if the safety
instructions are not obeyed.
•
Use an approved grounded mains socket that is not
damaged.
• Do not use other battery chargers than the one
supplied for your product. Only use Husqvarna QC
chargers when you charge Husqvarna replacement
batteries BLi.
• Do not try to disassemble the battery charger.
• Do not use a defective or damaged battery charger.
• Do not lift the battery charger by the power cord. To
disconnect the battery charger from a mains socket,
pull out the plug. Do not pull the power cord.
• Keep all cables and extension leads away from
water, oil and sharp edges. Make sure that the cable
is not caught between doors, fences or similar.
• Do not use the battery charger near flammable
materials or materials that can cause corrosion.
Make sure that the battery charger is not covered.
Pull out the plug to the battery charger if there is
smoke or fire.
• Only charge the battery indoors in a location with
good airflow and away from sunlight. Do not charge
the battery outdoors. Do not charge the battery in
wet conditions.
• Only use the battery charger where the temperature
is between 5 °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.
Safety instructions for the cutting equipment
WARNING: Read the warning instructions
that follow before you use the product.
• Use the correct combination of guide bar and saw
chain to decrease the risk of kickback! Only use the
bar/saw chain combinations we recommend and use
the correct filing equipment. See
Technical data on
page 33
for instructions.
• Use protective gloves when you handle the saw
chain. A saw chain that does not move can also
cause injuries to a person that touches the saw
chain.
•
Keep the cutting teeth correctly sharpened! Follow
our instructions and use the recommended file
gauge. A damaged saw chain or a saw chain that
has been incorrectly sharpened increases the risk of
accidents.
421 - 001 - 10.01.2018 11
• Keep the correct depth gauge setting! Follow our
instructions and use the recommended depth gauge
clearance. Too large a clearance 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 risk for it to come loose increases. This
leads to increased wear on the guide bar, saw chain
and drive sprocket.
• Do maintenance on the cutting equipment regularly
and keep it correctly lubricated. The risk of wear on
the guide bar, saw chain and drive sprocket
increases if the saw chain is not correctly lubricated.
Assembly
To assemble the guide bar and saw
chain (
436 Li)
WARNING: Always remove the battery
before you assemble or do maintenance on
the product.
1. Disengage the chain brake.
2. Loosen the knob and remove the drive sprocket
cover (chain brake) 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.
12 421 - 001 - 10.01.2018
4. Make sure that the edges of the cutting links are
turned forward on the top edge of the guide bar.
5. Make sure that the edges of the cutting links face
forward on the top edge of the guide bar.
6.
Assemble 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 saw chain. See
To tighten the saw chain
on page 28
for instructions.
To assemble the guide bar and saw
chain (536 LiXP)
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 cutting links are
turned forward on the top edge of the guide bar.
5. Make sure that the edges of the cutting links face
forward on the top edge of the guide bar.
6.
Assemble 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 finger-tight.
10. Tighten the saw chain. See
To tighten the saw chain
on page 28
for instructions.
To assemble a spiked bumper
To assemble a spiked bumper, turn to your servicing
dealer.
421 - 001 - 10.01.2018 13
Operation
To do a function check before you use
the product
1.
Do a check of the chain brake to make sure that it
operates correctly and that it is not damaged.
2. Do a check of the rear right hand guard to make sure
that it is not damaged.
3. Do a check of the power trigger lockout to make sure
that it operates correctly and that it is not damaged.
4. Do a check of the keypad to make sure that it
operates correctly.
5. Make sure that there is no oil on the handles.
6. Do a check to make sure that all parts are correctly
attached and not damaged or missing.
7. Do a check of the chain catcher to make sure that it
is attached correctly.
8. Do a check of the chain tension.
9. Charge the battery and make sure that it is correctly
attached to the product.
10. Make sure that the saw chain stops when you
release the power trigger.
A
B I F G H
C J D
E
Chain oil
All Husqvarna
chainsaws have an automatic chain
lubrication system. On some models the oil flow is also
adjustable.
Think about the following when you select a chain oil:
• The oil tank lasts approximately three battery
charges. This applies only if you use the correct
chain oil. If the chain oil is too thin, it will not last that
long.
•
Chain oil must show good adherence to the saw
chain and also keep its flow quality during warm
summer and cold winter weather.
• Use an oil of the right grade (suitable viscosity
range) to agree with the air temperature. In
temperatures below 0°C (32°F) some oils become
too thick. This can cause the oil pump to overload
and result in damage to the oil pump components.
• Use the recommended cutting equipment. A guide
bar that is too long will use more chain oil.
• Turn to your servicing dealer when you select a
chain oil.
WARNING: Do not use waste oil! Waste oil
is dangerous to you and the environment.
Waste oil also causes damage to the oil
pump, the guide bar and the saw chain.
WARNING: If the lubrication of the cutting
equipment is not sufficient, it can cause the
saw chain to break. This can cause serious
injury or death to the operator.
CAUTION: If you use vegetable based chain
oil, clean the groove in the guide bar and
saw chain before long-term storage.
Otherwise there is a risk of the saw chain
oxidizing, which causes the saw chain to
become stiff and that the bar tip sprocket
gets clogged.
To connect the battery charger
1.
Connect the battery charger to the voltage and
frequency 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 will not charge if the battery
temperature is more than 50 °C/122 °F. If the
14 421 - 001 - 10.01.2018
temperature is more than 50 °C/122 °F, the battery
charger will cool down the battery.
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.
To start the product
1.
Do a check of the power trigger and power trigger
lockout. See
Maintenance on page 23
.
2. Push the front hand guard forward to engage the
chain brake.
3. Put the battery in the battery holder.
4. Press on the lower part of the battery until you hear
a click sound.
CAUTION: If the battery does not move
into the battery holder easily, it is not
attached correctly into the battery holder.
5. Press and hold the start/stop button until the green
LED light comes on.
421 - 001 - 10.01.2018 15
To use the SavE function
This product has a power saving function, SavE. The
SavE function decreases the chain speed and gives the
longest operation time from the battery.
Note: The SavE function does not decrease the cutting
power of the product.
1. Press the SavE button on the keypad.
2.
Make sure that the green LED comes on.
3. Press the SavE button again to disconnect the
function. The green LED goes out.
To stop the product
1.
Press and hold the start/stop button on the keypad
until the green LED light comes off.
2. Pull out the battery and press the battery release
buttons to remove the battery from the battery
holder.
WARNING: Remove the battery when you
do not use or when you do not have full
vision of the product. This is to prevent
accidental start.
What is kickback?
WARNING: If a kickback occurs when the
saw chain rotates, it can cause serious
injuries or death to the operator. It is vital
that you understand the causes of kickback
and that you can prevent them with correct
working technique. If you are prepared you
decrease the risk.
A kickback occur when the kickback zone touches an
object with a rotating saw chain. A kickback can occur
suddenly and with large force, which throws the product,
guide bar and saw chain against the operator.
Kickback always occurs in the cutting plane of the guide
bar. Usually, the product, guide bar and saw chain are
thrown against the operator but can also move in a
different direction. It is how you use the product when
16 421 - 001 - 10.01.2018
the kickback occurs that causes the direction of
movement.
Kickback only occurs if the kickback zone of the guide
bar touches an object. Do not let the kickback zone
touch an object.
The smaller the bar tip radius the lower the risk of
kickback.
A saw chain is made up of a number of links, which are
available as standard and low kickback. You can
decrease the effects of kickback by using the correct
cutting equipment with kickback reduction.
WARNING: No saw chain fully prevents the
dangerous situations that can occur during a
kickback.
Common questions about kickback
• Will the hand always engage the chain brake during
a kickback?
No. It is necessary to use some force to push the
front hand guard forward. If you do not use the force
necessary, the chain brake may not be engaged.
This can occur if your hand only lightly touches the
front hand guard. You must also hold the handles of
the product stable with two hands during work. If a
kickback occurs, your hand may not let go of the
front handle. Then it will not engage the chain brake,
or the chain brake will only engage after the product
has moved around a large distance. If this situation
occurs, the chain brake may not stop the saw chain
before it touches you. There are also some positions
in which your hand can not touch the front hand
guard to engage the chain brake. An example of this
is in the felling position.
• Will the inertia release mechanism always engage
the chain brake during kickback?
No. First, the chain brake must work correctly. See
Maintenance and checks of the safety devices on
the product on page 23
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 kickback must be intense to engage the
chain brake. If the chain brake is too sensitive it will
be engaged all the time.
• Will the chain brake always protect me from injury
during a kickback?
No. The chain brake must work correctly in order to
give the correct protection. The chain brake must
also be engaged during a kickback to stop the saw
chain. If you are near the guide bar, the chain brake
may not have time to stop the saw chain before it
hits you.
WARNING: Only you and the correct
working technique can prevent kickbacks.
To use the cutting technique
WARNING: Use full power when you cut and
decrease the speed to idle after each cut.
CAUTION: Motor damage can occur if the
motor runs for too long at full power without
load. For example if the motor runs for too
long without resistance from the saw chain
during cutting.
You can use the product to cut through wood in two
different positions.
•
To cut on the pull stroke is when you cut with the
bottom of the guide bar. The saw chain pulls through
the tree when you cut. In this position you have
better control of the product and the position of the
kickback zone.
421 - 001 - 10.01.2018 17
• 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.
1. Put the trunk on a saw horse or runners.
WARNING: Do not try to cut trunks in a
pile. That increases the risk of kickback
and can result in serious injury or death.
2. Cut the trunks one by one.
3.
Remove the cut pieces from the cutting area.
WARNING: The kickback risk increases
if you keep cutting pieces in the cutting
area. It is also a risk that you do not
keep your balance during operation.
To cut a trunk on the ground
WARNING: Follow the steps below to
prevent the saw chain from touching the
ground or an object.
Note: To cut trunks on the ground decreases the risk that
the saw chain gets trapped or that the object breaks.
1. Cut through the trunk on the pull stroke. Do not let
the saw chain touch the ground when you complete
the kerf. Keep full power but be prepared for sudden
accidents.
2. To prevent accidents, cut approximately 2/3 through
the trunk and then stop. Turn the trunk and cut from
the opposite side to complete the task.
To cut a trunk with support on one end
WARNING: Follow the steps below to
prevent the trunk from breaking before the
cutting is complete.
18 421 - 001 - 10.01.2018
1. Cut on the push stroke approximately 1/3 through
the trunk.
2.
Cut through the trunk on the pull stroke until the two
kerfs touch.
To cut a trunk with support on two ends
WARNING: Follow the steps below to
prevent the saw chain from getting trapped
in the trunk.
1. Cut on the pull stroke approximately 1/3 through the
trunk.
2.
Cut through the remaining part of the trunk on the
push stroke until the two kerfs touch.
WARNING: If the saw chain gets trapped in
the trunk, stop the motor! Do not try to pull
the product free. If you do, there is a risk of
injury when the product suddenly breaks
free. Use a lever to open up the cut and free
the product.
To use the limbing technique
Note: If you are to use the limbing technique on thick
branches, use the same procedure as for the cutting
technique.
1. Keep the larger, lower branches on the tree to give it
support on the ground.
2. Cut limbs one by one.
3.
Cut branches that are in tension from the bottom up.
2
4
1
3
4. Cut branches piece by piece if necessary.
1
2
3
WARNING: Be careful when you remove
small branches and do not cut bushes or
many small branches at the same time.
Small and light branches can get trapped
by the saw chain and be thrown at you.
This can mean that you can not keep
control of the product, which can cause
serious injury.
5. Work on the left side of the trunk. Be as close as
possible to the product for maximum control. Let the
weight of the product be on the trunk if possible.
WARNING: Most kickback accidents
occur during limbing. Do not touch the
trunk, other limbs or objects with the
guide bar tip or the kickback zone. Be
careful with limbs that are in tension.
They can be thrown at you and cause
serious injury.
6. Keep the trunk between you and the product as you
move along the trunk.
421 - 001 - 10.01.2018 19
To use the tree felling technique
WARNING: You must have much
experience to fell a tree. Operators without
experience must not fell trees.
To keep a safe distance
1.
Make sure that persons around you keep a safe
distance at a minimum of 2 1/2 tree lengths.
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: Let the tree fall in its natural
fall direction if it is not possible or
dangerous to fell it differently.
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 tree. It is
dangerous to remove a trapped tree and there is a
high accident risk. See
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
1.
Use the limbing technique to free the tree from
branches from your shoulder height and down. Start
from the top down and make sure that the tree is
between you and the product.
2. Remove dirt, stones, loose bark, nails, staples and
wire from the tree where the felling cuts are made.
Remove undergrowth from the bottom of the tree.
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
20 421 - 001 - 10.01.2018
1
2
2
1
1
3
To fell a tree
You use three cuts to fell a tree. These are the
directional cuts, which include the top cut and the
bottom cut, and the felling cut. If you make these cuts
correctly, you can control the felling direction very
accurately.
WARNING: Do not fell trees with a diameter
larger than the bar length of your product,
unless you have special training! This
includes a much larger risk that the kickback
zone of the guide bar touches the tree.
To make the directional cuts
1.
Make the directional cuts. Run the directional cuts
1/4 of the diameter of the tree. Make a 45° angle
between the top cut and bottom cut.
a) Make the top cut first. Align the felling direction
mark (A) of the product with the felling direction
of the tree (B). Stay behind the product and keep
the tree on your right side. Cut with a pull stroke.
b) Make the bottom cut. Make sure that the end of
the bottom cut is at the same point as the end of
the top cut.
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.
To make the felling cut
Note: The felling cut is made on the opposite side of the
tree from the directional cuts.
1. Make the felling cut approximately 3-5 cm/1.5-2 in
above the bottom directional cuts. The cut must be
perfectly horizontal.
2. If you have a spiked bumper, put it behind the felling
hinge.
3.
Cut on the pull stroke, use full power and forward the
saw chain/guide bar slowly into the tree. Make sure
that the tree does not fall in an unwanted direction.
4. Operate a wedge or breaking bar into the cut when
the cut has accurate depth.
421 - 001 - 10.01.2018 21
5. Complete the felling cut parallel with the directional
cut line. Make sure that the distance between them
is at a minimum of 1/10 of the trunk diameter. The
section of the trunk that is not cut is the felling hinge.
The felling hinge controls the felling direction.
WARNING: You have no control of the
felling direction if the felling hinge is
gone or if it is too thin. This also applies
to if you have not made the directional
cuts and felling cut correctly.
6. At this time, the tree will fall by its own force or with
the aid of a wedge or breaking bar.
Note: Use a guide bar that is longer than the diameter of
the tree. This helps you to make the felling cut and
directional cuts with one cutting stroke each. See
Accessories on page 34
to find out which bar lengths
we recommended for your product.
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.
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.
22 421 - 001 - 10.01.2018
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.
Maintenance
Introduction
WARNING: Before you do maintenance, you
must read and understand the safety
chapter.
Maintenance and checks of the safety
devices on the product
To do a check of the front hand guard
Regularly do a check of the front hand guard and the
inertia brake release.
1.
Make sure that the front hand guard is not damaged
and that there are no defects, such as cracks.
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.
421 - 001 - 10.01.2018 23
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
To
start the product on page 15
.
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 works
correctly.
2. Press down the power trigger lockout and make sure
that it goes back to its initial position when you
release it.
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. If the saw
chain rotates when the power trigger is in the idle
position, turn to your servicing dealer.
To do a check of the chain catcher
1. Make sure that there is no damage on the chain
catcher.
2. Make sure that the chain catcher is stable and
attached to the body of the product.
To do a check of the keypad
1.
Start the product. See
To start the product on page
15
2. Press the start/stop button again.
24 421 - 001 - 10.01.2018
3. Make sure that the product stops when you press
and hold the button. The green LED will go off.
To do a check of the battery and the
battery compartment
1.
Clean the battery and the battery compartment with
a soft brush.
2. Make sure that the cooling slots and battery
connectors are clean.
3. Make sure that the battery is not damaged and there
are no other defects, such as cracks.
To do a check of the battery charger
1.
Make sure that the battery charger and the power
supply cord is not damaged. Look for cracks and
other defects.
To clean the cooling system
The product has a cooling system that keeps the
temperature of the product as low as possible.
The cooling system includes an air intake on the left side
of the product and a fan on the motor.
1. Clean the cooling system with a brush weekly or
more frequently if necessary.
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 piston and cylinder.
To sharpen the saw chain
Information about the guide bar and saw chain
Replace a worn or damaged guide bar or saw chain with
the guide bar and saw chain combinations
recommended by
Husqvarna. This is important in order
to keep the safety functions of the cutting equipment.
See
Accessories on page 34
, for a list of replacement
bar and chain combinations that we recommend.
• Length, in/cm.
L
421 - 001 - 10.01.2018 25
• 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 length of the bar, the chain pitch and
the number of teeth on the bar tip sprocket.
• Bar groove width, in/mm. The groove in the guide
bar must align with the width of the chain drive links.
• 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
cutting teeth
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 a cutting tooth, think about the
following:
•
Filing angle.
• Cutting angle.
• File position.
26 421 - 001 - 10.01.2018
• Round file diameter.
It is not easy to sharpen a saw chain correctly without
the correct equipment. Use
Husqvarna file gauge. This
will help you to keep maximum cutting performance and
the kickback risk at a minimum.
WARNING: The risk of kickback increases a
lot if you do not follow the sharpening
instructions.
Note: See
Filing equipment and filing angles on page
34
for information about sharpening of the saw chain.
To sharpen the cutting teeth
1.
Use a round file and a file gauge to sharpen the
cutting teeth.
Note: See
Filing equipment and filing angles on page
34
for information about which file and gauge that
Husqvarna recommends for your saw chain.
2. Make sure that the saw chain has the correct
tension. A saw chain without the correct tension
moves from side to side. This does not make it easy
to sharpen the saw chain. See
To tighten the saw
chain on page 28
for instructions.
3. Move the file from the inner side of the cutting teeth
and out. Decrease the pressure on the pull stroke.
4. Remove filing material on all teeth on one side first.
5.
Turn the product around and remove filing material
on the other side.
6. Make sure that the all cutting teeth become the
same length when you remove filing material.
7. The saw chain is worn out when the cutting teeth is
decreased to 4 mm (0.16"). Replace the saw chain.
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 cutting teeth, See
To sharpen the cutting teeth on
page 27
, for instructions. We recommend you to adjust
the depth gauge setting after each third operation that
you sharpen the cutting teeth.
Note: This recommendation applies only if the length of
the cutting teeth does not decrease too much.
421 - 001 - 10.01.2018 27
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
Husqvarna depth
gauge tool to receive 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.
Note: The depth gauge setting is correct when you
do not feel resistance as you move the file along the
depth gauge tool.
To tighten the saw chain
WARNING: A saw chain without the correct
tension can come loose from the guide bar
and cause serious injury or death.
The more you use a saw chain the longer it becomes. It
is important to adjust the saw chain regularly.
Do a check of the saw chain tension each time you refill
with chain oil.
Note: A new saw chain has a running-in period during
which you must do a check of the tension more
frequently.
To tighten the saw chain (436 Li)
1.
Fold the knob out until it opens.
2. Turn the knob counterclockwise to loosen the drive
sprocket cover.
3. Turn the chain tensioner wheel to adjust the tension
on the saw chain. The saw chain must be tight
against the guide bar.
-
+
Note: Turn the wheel down (+) for more tension and
up (-) for less tension. The saw chain is tightened
correctly when you can turn is easily by hand but is
tight against the guide bar.
4. Turn the knob clockwise to tighten the bar knob.
28 421 - 001 - 10.01.2018
5. Fold down the knob to lock the tension.
6. Do a check of the chain tension frequently, until the
saw chain is run-in.
7.
Do a check of the chain tension regularly to keep
good cutting performance and a long life.
To tighten the saw chain (536 LiXP)
1. Loosen the bar nut(s) that hold the drive sprocket
cover. Use a wrench.
2. Lift the front of the guide bar and turn the chain
tensioning screw. Use a wrench.
3.
Tighten the saw chain until it is tight against the
guide bar.
4. Tighten the bar nut(s) using the wrench. Lift the front
of the guide bar at the same time.
5. Make sure you can pull the saw chain around freely
by hand and that it does not hang from the bottom of
the guide bar.
6. Do a check of the chain tension frequently, until the
saw chain is run-in.
7.
Do a check of the chain tension regularly to keep
good cutting performance and a long life.
Note: The position of the chain tensioning screw is not
the same on all models. See
Product overview on page
2
to find out where it is 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
coloured 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.
421 - 001 - 10.01.2018 29
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.
Chain drive sprocket
The drive system has a drive sprocket.
Do the following maintenance on the chain drive
sprocket:
• Regularly do a check of the degree of wear on the
drive sprocket. Replace the chain drive sprocket if
there is too much wear.
• Replace the drive sprocket when you replace the
saw chain.
To examine the cutting equipment for
wear
Do a check of the saw chain daily.
1. Make sure that there are no cracks in rivets and
links. Replace if necessary.
2. Examine if the saw chain is rigid. Replace if
necessary.
3. Compare the saw chain with a new saw chain to
examine if the rivets and links are worn. Replace the
saw chain when the length of the cutting teeth has
worn down to 4 mm/ 0.16 in.
To do a check of the guide bar
Do a check of the guide bar regularly.
1. Examine if there are burrs on the edges of the guide
bar. Remove burrs with a file if necessary.
2. Examine the groove in the guide bar for wear.
Replace the guide bar if necessary.
3. Examine if the guide bar tip is rough or very worn.
Hollow shapes on the guide bar tip is a result of bad
saw chain tension.
4. Turn the guide bar daily to extend its life cycle.
30 421 - 001 - 10.01.2018
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 23
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 keypad works correctly and that it is not damaged. X
Use a file to remove burrs from the edges of the guide bar. X
Do a check of the connections between the battery and the product. Do a check
of the connection between the battery and the battery charger.
X
Empty and clean the oil tank. X
Blow through the product and battery cooling slots gently with compressed air. X
Troubleshooting
Troubleshooting schedule
Table 1: Keypad
Possible fault codes on the keypad of the product.
421 - 001 - 10.01.2018 31
LED display Possible faults Possible action
Warning indicator flashing. Chain brake engaged. Pull back the front hand guard to re-
lease the chain brake.
Temperature deviation. Allow the product to cool down.
Overload. Cutting attachment jam-
med.
The cutting attachment is jammed.
Release the cutting attachment.
The power trigger and the activate
button are pressed at the same time.
Release the power trigger and the
product is active.
Green activate LED flashing. Low battery voltage. Charge the battery.
Warning indicator lit. Service. Turn to your servicing dealer.
Table 2: Battery
Troubleshooting the battery and/or the battery charger during charging.
LED display Possible faults Possible action
Warning indicator flashing. The battery is discharged. Charge the battery.
Temperature deviation. Use the battery in surroundings
where tempereatures are between
-10 °C/14°F and 40°C/104°F.
Over voltage. Check that the mains voltage corre-
sponds with that stated on the rating
plate on the product.
Remove the battery from the battery
charger.
Warning indicator lit. Cell difference is too much (1V). Turn to your servicing dealer.
Table 3: 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.
32 421 - 001 - 10.01.2018
• Obey the special requirement on package and labels
for commercial transportations, including by third
parties and forwarding agents.
•
Speak to a person with special training in dangerous
material before you send the product. Obey all
applicable national regulations.
• Use tape on open contacts when you put the battery
in a package. Put the battery in the package tightly
to prevent movement.
• Remove the battery for storage or transportation.
• Put the battery and the battery charger in a space
that is dry and free from moisture and frost.
• Do not keep the battery in an area where static
electricity can occur. Do not keep the battery in a
metal box.
• Put the battery in storage where the temperature is
between 5 °C (41 °F) and 25 °C (77 °F) and away
from open sunlight.
• Put the battery charger in storage where the
temperature is between 5 °C (41 °F) and 45 °C
(113 °F) and away from open sunlight.
• Charge the battery 30% to 50% before you put it in
storage for long periods.
• Put the battery charger in storage in a space that is
closed and dry.
• Keep the battery away from the battery charger
during storage. Do not let children and other not
approved persons to touch the equipment. Keep the
equipment in a space that you can lock.
• 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
436 Li 536 LiXP
Motor
Type BLDC (brushless) 36V BLDC (brushless) 36V
Features
Low energy mode savE savE
Lubrication system
Type of oil pump Automatic Automatic
Oil tank capacity, liter/cm
2
0,20/200 0,20/200
Weight
Chainsaw without battery, guide bar, saw chain and emp-
ty chain oil tank, kg
2,5 2,4
Noise emissions
1
Sound power level, measured dB(A) 104 104
Sound power level, guaranteed L
WA
dB(A) 106 106
1
Noise emissions in the environment measured as sound power (L
WA
) in conformity with EC directive
2000/14/EC.
421 - 001 - 10.01.2018 33
436 Li 536 LiXP
Sound levels
2
Equivalent sound pressure level at the operator's ear,
dB(A)
93 93
Vibration levels
3
Front handle m/s
2
3,5 4,1
Rear handle m/s
2
3,9 4,6
Equivalent vibration levels
4
Front handle m/s
2
2,2 2,5
Rear handle m/s
2
2,4 2,8
Saw chain/guide bar
Recommended bar lengths, inch/cm 10-14/25-35 10-14/25-35
Usable cutting length, inch/cm 9-13/23-33 9-13/23-33
Type of drive sprocket/number of teeth Spur/6 Spur/6
Maximum chain speed / (savE), m/s 15 (12) 20 (15)
Accessories
Guide bar and saw chain combinations
The following cutting attachments are approved for
Husqvarna436 Li and 536 LiXP.
Saw chain
Length, in Chain pitch, in Gauge, mm Max. nose radius Type Length, drive
links (no.)
10 3/8 1,1 7T Husqvarna H38 40
12 9T 45
14 52
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.
2
Equivalent sound pressure level, according to ISO 22868, 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).
3
Vibration level, according to EN 60745-2-13. Reported data for vibration level has a typical statistical disper-
sion (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
.
4
Equivalent vibration level is measured and calculated as for combustion engine powered chainsaws. These
figures are quoted to be able to compare vibration data regardless of type of engine.
34 421 - 001 - 10.01.2018
Guide bar
38
11/64 in/4,5
mm
90° 30° 0°
0.025 in/
0,65 mm
5056981-03 5795588-01
Approved batteries for the product
Battery BLi110 BLi150
Type Lithium-ion Lithium-ion
Battery capacity, Ah 3,0 4,2
Nominal voltage, V 36 36
Weight, kg/lb 1,2/2.6 1,3/2.9
Approved battery chargers for the product
Battery charger QC120 QC330
Mains voltage, V 220-240 100-240
Frequency, Hz 50-60 50-60
Power, W 125 330
421 - 001 - 10.01.2018 35
EC Declaration of Conformity
EC Declaration of conformity
Husqvarna AB
, SE-561 82 Huskvarna, Sweden, tel:
+46-36-146500, declares under sole responsibility that
the cordless battery chainsaws Husqvarna 436 Li and
536 LiXP from 2016’s serial numbers and onwards (the
year is clearly stated in plain text on the type plate with
subsequent serial number), are in conformity with the
requirements of the COUNCIL’S DIRECTIVES:
• of May 17, 2006 ”relating to machinery” 2006/42/EC.
• of February 26, 2014 ”relating to electromagnetic
compatibility” 2014/30/EU.
• of September 6, 2006 "on batteries and
accumulators and waste batteries and accumulators"
2006/66/EC
• of May 8, 2000 ”relating to the noise emissions in the
environment” 2000/14/EC.
• of June 8, 2011 on the "restriction of use of certain
hazardous substances" 2011/65/EU
The following standards have been applied: EN
60745-2-13, EN 62133, EN 55014-1, EN 55014-2
Notified body: 0366, VDE-Prüf- und
Zertifizierungsinstitut GmbH, Merianstraβe 28, DE-630
69 Offenbach (Am Main), Germany, has carried out EC
type examination in accordance with the machinery
directive's (2006/42/EC) article 12, clause 3b.
In addition, SMP, Svensk Maskinprovning AB, Box
7035, SE-750 07, Uppsala, Sweden, has certified
conformity with annex V of the Council's Directive of
May 8, 2000 "relating to the noise emissions in the
environment" 2000/14/EC. The certificates have the
numbers: EN 60745-2-13, EN 62133, EN 55014-1, EN
55014-2.
The supplied chainsaw conforms to the example that
underwent EC type examination.
For information relating to noise emissions, see
Technical data on page 33
.
Huskvarna, 2017-01-10
Lars Roos, Development manager (Authorized
representative for Husqvarna AB and responsible for
technical documentation.)
36 421 - 001 - 10.01.2018
421 - 001 - 10.01.2018 37
38 421 - 001 - 10.01.2018
421 - 001 - 10.01.2018 39
www.husqvarna.com
Original instructions
1159977-26
2018-03-01
