Husqvarna Cordless Saw K1250 User Manual

Operator’s manual (EPA)  
K1250  
Please read the operator’s manual carefully and make sure you understand the  
instructions before using the machine.  
English  
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CONTENTS  
Contents  
KEY TO SYMBOLS  
Key to symbols .............................................................  
CONTENTS  
4
Contents ......................................................................  
WHAT IS WHAT?  
What is what on the power cutter? ...............................  
SAFETY INSTRUCTIONS  
Steps before using a new power cutter. .......................  
Personal protective equipment .....................................  
Machines safety equipment ........................................  
Checking, maintaining and servicing the machines  
safety equipment ..........................................................  
General safety precautions ..........................................  
General working instructions .......................................  
Cutting blades .............................................................. 11  
ASSEMBLY  
Assembling the cutting head ........................................ 13  
Checking the drive axle and flange washers ............... 13  
Fitting the cutting blade ................................................ 13  
Guard for the blade ...................................................... 13  
FUEL HANDLING  
Fuel .............................................................................. 14  
Fueling ......................................................................... 14  
STARTING AND STOPPING  
Starting and stopping ................................................... 15  
MAINTENANCE  
Tensioning the drive belt .............................................. 16  
Replacing the drive belt ............................................... 16  
Belt pulley and clutch ................................................... 16  
Carburetor .................................................................... 16  
Fuel filter ...................................................................... 17  
Air filter ......................................................................... 17  
Starter .......................................................................... 18  
Spark plug .................................................................... 19  
Cooling system ............................................................ 19  
Muffler .......................................................................... 19  
General maintenance instructions ............................... 20  
TECHNICAL DATA  
Cutting equipment ........................................................ 21  
FEDERAL EMISSION CONTROL WARRANTY  
STATEMENT  
YOUR WARRANTY RIGHTS AND OBLIGATIONS ..... 22  
English – 3  
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WHAT IS WHAT?  
19  
22  
14  
1
5
21  
18  
6
15  
20  
2
16  
3
7
23  
4
11  
17  
8
10  
9
12  
13  
What is what on the power cutter?  
1
2
3
4
5
6
7
8
9
Cylinder cover  
13 Combination spanner  
14 Air filter cover  
Muffler  
Fuel tank  
15 Blade guard/spray guard  
16 Starter handle  
Start throttle lock  
Choke  
17 Operator’s manual (EPA)  
Throttle lockout  
Stop switch  
Cutting head  
Cutting arm  
18 Adjustment handle for blade guard  
19 Front handle  
20 Starter  
21 Decompression valve  
22 Warning decal  
10 Belt tensioner  
11 Cutting blade  
12 Throttle control  
23 Type plate  
4 – English  
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SAFETY INSTRUCTIONS  
Steps before using a new power cutter  
Please read the operator’s manual carefully.  
Check the cutting blade’s mounting, see the chapter  
”Assembly”.  
Start the engine and check the idling setting, see  
instructions under the heading Maintenance. When the  
carburettor is set correctly the cutting blade should be still  
while idling. Setting of the idle speed is described in the  
Operator’s Manual. Set the correct speed according to  
these instructions. Do not use the power cutter if the idle  
speed is not adjusted correctly!  
You will find the following labels on your power cutter:  
Let your Husqvarna dealer regularly check the power  
cutter and make essential adjustments and repairs.  
WARNING! Under no circumstances may the  
design of the machine be modified without  
the permission of the manufacturer. Always  
use genuine accessories. Non-authorized  
modifications and/or accessories can result  
in serious personal injury or the death of the  
operator or others.  
!
The Emissions Compliance Period referred to on the  
Emission Compliance label indicates the number of operating  
hours for which the engine has been shown to meet Federal  
emissions requirements. Category C = 50 hours, B = 125  
hours, and A = 300 hours.  
WARNING! Use of products which cut, grind,  
drill, sand or shape material can generate  
dust and vapors which may contain harmful  
chemicals. Know the nature of the material  
being worked on and wear appropriate dust  
mask or respirator protection.  
!
Husqvarna Construction Products has a policy of continuous  
product development. Husqvarna reserves the right to modify  
the design and appearance of products without prior notice  
and without further obligation introduce design modifications.  
WARNING! A power cutter is a dangerous  
tool if used carelessly or incorrectly and can  
cause serious, even fatal injuries. It is extre-  
mely important that you read and understand  
the contents of this Operator’s Manual.  
!
All information and all data in the Operator’s Manual were  
applicable at the time the Operator’s Manual was sent to print.  
Personal protective equipment  
WARNING! The ignition system of this  
WARNING!You must use approved personal  
protective equipment whenever you use the  
machine. Personal protective equipment  
cannot eliminate the risk of injury but it will  
reduce the degree of injury if an accident  
does happen. Ask your dealer for help in  
choosing the right equipment.  
machine produces an electromagnetic field  
during operation.This field may under some  
!
!
circumstances interfere with pacemakers.To  
reduce the risk of serious or fatal injury, we  
recommend persons with pacemakers to  
consult their physician and the pacemaker  
manufacturer before operating this machine.  
Protective helmet  
WARNING! Some dust created by power  
sanding, sawing, grinding, drilling, and other  
construction activities contains chemicals  
known (to the State of California) to cause  
cancer, birth defects or other reproductive  
harm. Some examples of these chemicals are:  
Hearing protection  
!
Protective goggles or a visor  
Lead from lead-based paints.  
Crystalline silica from bricks, cement and  
other masonry products.  
Breathing mask  
Arsenic and chromium from  
chemicallytreated lumber.  
Your risk from these exposures varies,  
depending on how often you do this type of  
work.To reduce your exposure to these  
chemicals: work in a well ventilated area,  
and work with approved safety equipment,  
such as those dust makes that are specially  
designed to filter out microscopic material.  
English – 5  
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SAFETY INSTRUCTIONS  
Heavy-duty, rm grip gloves.  
Stop switch  
Use the stop switch to switch off the engine.  
Tight-fitting, heavy-duty and comfortable clothing that  
permits full freedom of movement.  
Muffler  
WARNING! The muffler gets very hot in use  
and remains so for a short time afterwards.  
Do not touch the muffler if it is hot!  
!
Use leg-guards recommended for the material to be cut.  
Boots with steel toe-caps and non-slip sole  
The muffler is designed to keep noise levels to a minimum  
and to direct exhaust fumes away from the user.  
Always have a first aid kit nearby.  
WARNING! The exhaust fumes from the  
engine are hot and may contain sparks  
which can start a fire. Never start the  
machine indoors or near combustible  
material!  
!
Machines safety equipment  
IMPORTANT INFORMATION  
This section describes the machines safety equipment, its  
purpose, and how checks and maintenance should be carried  
out to ensure that it operates correctly. See the ”What is  
what?” section to locate where this equipment is positioned  
on your machine.  
For mufflers it is very important that you follow the  
instructions on checking, maintaining and servicing your  
machine. See instructions under the heading Checking,  
maintaining and servicing the machine’s safety equipment.  
WARNING! Never use a machine that has  
faulty safety equipment! Carry out the  
inspection, maintenance and service  
routines listed in this section.  
WARNING! The inside of the muffler contain  
chemicals that may be carcinogenic. Avoid  
contact with these elements in the event of a  
damaged muffler.  
!
!
Vibration damping system  
Your machine is equipped with a vibration damping system  
that is designed to reduce vibration and make operation  
easier.  
The machines vibration damping system reduces the transfer  
of vibration between the engine unit/cutting equipment and  
the machines handle unit.  
The engine body, including the cutting equipment, is insulated  
from the handles by vibration damping units.  
6 – English  
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SAFETY INSTRUCTIONS  
Throttle lockout  
Checking,maintaining and servicing  
The throttle trigger lock is designed to prevent accidental  
operation of the throttle. When the lock (A) is pressed in this  
releases the throttle (B).  
the machines safety equipment  
WARNING! All servicing and repair work on  
A
the machine requires special training.This is  
especially true of the machines safety  
!
equipment. If your machine fails any of the  
checks described below you must contact  
your service agent.When you buy any of our  
products we guarantee the availability of  
professional repairs and service. If the  
retailer who sells your machine is not a  
servicing dealer, ask him for the address of  
your nearest service agent.  
B
The trigger lock remains pressed in as long as the throttle is  
pressed. When the grip on the handle is released the throttle  
trigger and the throttle trigger lock both return to their original  
positions.This is controlled by two independent return spring  
systems. This means that the throttle trigger is automatically  
locked in the idle position.  
Vibration damping system  
Regularly check the vibration damping units for cracks or  
deformation.  
Guard for the blade  
Make sure the vibration damping units are securely attached  
to the engine unit and handle unit.  
Stop switch  
WARNING! Always check that the blade  
Start the engine and make sure the engine stops when you  
move the stop switch to the stop setting.  
guard is fitted correctly before starting the  
machine.  
!
This guard is fitted above the cutting blade and is designed to  
prevent parts of the blade or cutting fragments from being  
thrown towards the user.  
Muffler  
Never use a machine that has a faulty muffler.  
Regularly check that the muffler is securely attached to the  
machine.  
English – 7  
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SAFETY INSTRUCTIONS  
Throttle lockout  
General safety precautions  
Make sure the throttle control is locked at the idle setting  
when the throttle lockout is released.  
A power cutter is designed to cut hard materials, such as  
masonry. Observe the increased risk of kickback when  
cutting soft materials. See instructions under the heading  
How to avoid kickback.  
Do not use the power cutter until you have read the entire  
contents of this Operator’s Manual.  
All servicing, in addition to the points listed in the section  
”Control, maintenance and service of the power cutter’s  
safety equipment”, should be carried out by trained  
service specialists.  
Press the throttle lockout and make sure it returns to its  
original position when you release it.  
Never use the machine if you are tired, if you have drunk  
alcohol, or if you are taking medication that could affect  
your vision, your judgement or your co-ordination.  
Wear personal protective equipment. See instructions  
under the heading Personal protective equipment.  
Check that the throttle control and throttle lockout move  
freely and that the return springs work properly.  
Never use a machine that has been modified in any way  
from its original specification.  
Never use a machine that is faulty. Carry out the checks,  
maintenance and service instructions described in this  
manual. Some maintenance and service measures must  
be carried out by trained and qualified specialists. See  
instructions under the heading Maintenance.  
Never allow anyone else to use the machine without first  
ensuring that they have understood the contents of the  
operator’s manual.  
Start the power cutter and apply full throttle. Release the  
throttle control and check that the cutting blade stops and  
remains stationary. If the cutting blade rotates when the  
throttle is in the idle position you should check the  
carburettor’s idle adjustment. See instructions under the  
heading Maintenance.  
Never use the machine indoors. Be aware of the dangers  
of inhaling the engine’s exhaust fumes.  
Transport and storage  
Do not store or transport the power cutter with the cutting  
blade fitted.  
Store the power cutter in a lockable area so that it is out of  
reach of children and unauthorised persons.  
All blades should be removed from the cutter after use and  
stored carefully. Store cutting blades in dry, frost free  
conditions.  
Checking the blade guard  
Never use a defective guard or a guard that has not been  
fitted correctly.  
Special care should be taken with abrasive discs. Abrasive  
discs must be stored on a flat, level surface. If blades are  
supplied with a backing pad then a spacer should be used to  
keep them flat. If an abrasive disc is stored in humid  
conditions, this can cause imbalance and result in injury.  
Inspect new blades for transport or storage damage.  
WARNING! Always check that the guard is  
correctly fitted before starting the machine.  
Check that the cutting blade is fitted  
correctly and does not show signs of  
damage. A damaged cutting blade can cause  
personal injury. See instructions under the  
heading Assembly.  
!
Check that the guard is complete and without any cracks or  
deformations.  
8 – English  
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SAFETY INSTRUCTIONS  
Fuel safety  
General working instructions  
(Refuelling/Fuel mixture/Storage.)  
WARNING! This section describes basic  
safety directions for using a power cutter.  
This information is never a substitute for  
!
WARNING! Take care when handling fuel.  
Bear in mind the risk of fire, explosion and  
inhaling fumes.  
professional skills and experience. If you get  
into a situation where you feel unsafe, stop  
and seek expert advice. Contact your dealer,  
service agent or an experienced power  
cutter user. Do not attempt any task that you  
feel unsure of!  
!
Never refuel the machine while the engine is running.  
Make sure there is plenty of ventilation when refuelling or  
mixing fuel (gasoline and 2-stroke oil).  
Move the machine at least 10 ft (3 m) from the refuelling  
point before starting it.  
Basic safety rules  
Look around you:  
-To ensure that people, animals or other things cannot affect  
your control of the machine.  
-To make sure that none of the above come into contact with  
the cutting blade.  
Do not use the machine in bad weather, such as dense  
fog, rain, strong wind, intense cold, etc. Working in bad  
weather is tiring and can lead to dangerous conditions,  
e.g. slippery surfaces.  
Never start the machine:  
- If you have spilled fuel on it.Wipe off the spillage and allow  
remaining fuel to evaporate.  
Never start to work with the power cutter before the  
working area is clear and you have a firm foothold. Look  
out for any obstacles with unexpected movement. Ensure  
when cutting that no material can become loose and fall,  
causing operating injury.Take great care when working on  
sloping ground.  
- If you have spilled fuel on yourself or your clothes, change  
your clothes.Wash any part of your body that has come in  
contact with fuel. Use soap and water.  
- If the machine is leaking fuel. Check regularly for leaks  
from the fuel cap and fuel lines.  
Make sure that no clothes or parts of the body come in  
contact with the cutting equipment when it is rotating.  
Store and transport the machine and fuel so that there is  
no risk of any leakage or fumes coming into contact with  
sparks or naked flames, for example, from electrical  
machinery, electric motors, electrical relays/switches or  
boilers.  
Keep at a safe distance from the cutting equipment when  
it is rotating.  
The guard for the cutting equipment must always be on  
when the machine is running.  
Always store fuel in an approved container designed for  
that purpose.  
Ensure that the working area is sufficiently illuminated to  
create a safe working environment.  
When storing the machine for long periods the fuel tank  
must be emptied.Contact your local gas station to find out  
where to dispose of excess fuel.  
WARNING! Do not move the machine when  
Always use a Husqvarna fuel container with an anti-spill  
valve.  
the cutting equipment is rotating.  
!
Always ensure you have a safe and stable working  
position.  
WARNING! Bear in mind the risk of fire,  
explosion and inhaling fumes. Stop the  
engine before fuelling. Do not fill so that the  
!
Make sure that no pipes or electrical cables are routed in  
the area to be cut.  
fuel runs over. Wipe up all spillage on the  
ground and machine. If you spill fuel on  
yourself or your clothes. Change your  
clothes. Move the machine at least 3 metres  
away from the refuelling area before starting.  
WARNING! Only use the machine in areas  
with good ventilation. Neglect can result in  
serious injury or death.  
!
English – 9  
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SAFETY INSTRUCTIONS  
Move the blade slowly forwards and backwards to achieve  
Cutting  
a small contact area between the blade and the material  
to be cut. This reduces the temperature of the blade and  
ensures effective cutting.  
WARNING!The safety distance for the power  
cutter is 15 metres.You are responsible to  
ensure that animals and onlookers are not  
within the working area. Do not start cutting  
until the working area is clear and you are  
standing firmly.  
!
General  
Start cutting with the machine running at maximum  
speed.  
Feed down the machine in line with the blade. Pressure  
from the side can damage the blade and is very  
dangerous.  
Always hold the machine in a firm grip with both hands.  
Hold it so that the thumbs and fingers grip round the  
handles.  
The guard for the cutting equipment should be adjusted so  
that the rear section is flush with the work piece. Spatter  
and sparks from the material being cut are then collected  
up by the guard and led away from the user.  
WARNING! Overexposure to vibration can  
lead to circulatory damage or nerve damage  
in people who have impaired circulation.  
!
Contact your doctor if you experience  
symptoms of overexposure to vibration.  
These symptoms include numbness, loss of  
feeling, tingling, pricking, pain, loss of  
strength, changes in skin colour or  
condition.These symptoms normally appear  
in the fingers, hands or wrists.  
WARNING! Under all circumstances avoid  
grinding using the side of the blade; it will  
almost certainly be damaged, break and can  
cause immense damage. Only use the  
cutting section.  
!
Cutting technique  
The technique described below is of a general character.  
Check information for each blade regarding individual cutting  
characteristics (for example, diamond blades requires less  
feeding pressure than an abrasive discs).  
Do not pull the power cutter to one side, this  
can cause the blade to jam or break  
resulting in injury to people.  
Support the work piece in such a way that it is possible to  
predict what will happen, and so that the cut remains open  
while cutting.  
Sharpening diamond blades  
Diamond blades can become dull when the wrong feeding  
pressure is used or when cutting certain materials such as  
heavily reinforced concrete. Working with a blunt diamond  
blade causes overheating, which can result in the diamond  
segments coming loose.  
Sharpen the blade by cutting in a soft material such as  
sandstone or brick.  
Check that the blade is not in contact with anything when  
the machine is started  
Blade vibration  
Always cut at maximum speed.  
The blade can become out-of-round and vibrate if an  
excessive feed pressure is used.  
Start cutting smoothly, allowing the machine to work  
without forcing or pressing in the blade.  
A lower feed pressure can stop the vibration. Otherwise  
replace the blade. The blade must be of the recommended  
type for the material to be cut.  
10 – English  
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SAFETY INSTRUCTIONS  
How to avoid pinching  
How to avoid kickback  
Support the work piece in such a way that the cut remains  
open during the cutting operation and when the cut is  
finished.  
WARNING! Kickback can happen very  
suddenly and violently; kicking the power  
cutter and cutting blade back at the user. If  
this happens when the cutting blade is  
moving it can cause very serious, even fatal  
injuries. It is vital you understand what  
causes kickback and that you can avoid it by  
taking care and using the right working  
technique.  
!
Cutting blades  
What is kickback?  
The word kickback is used to describe the sudden reaction  
that causes the power cutter and cutting blade to be thrown  
from an object when the upper quadrant of the blade, known  
as the kickback zone, touches an object.  
WARNING! A cutting blade may burst and  
cause injury to the operator.  
!
Never use a cutting blade at a lower speed  
rating than that of the power cutter.  
Never use a cutting blade for any other  
purpose than that it was intended for.  
WARNING! Cutting plastics with a diamond  
blade or rescue blade can cause kickback  
when the material melts due to the heat  
produced when cutting and sticks to the  
blade.  
General rules  
!
Never start to cut with the upper quadrant of the blade as  
shown in the figure, also known as the kickback zone.  
General  
Cutting blades are available in two basic designs; abrasive  
discs and diamond blades.  
Always hold the machine in a firm grip with both hands.  
Hold it so that the thumbs and fingers grip round the  
handles.  
Always remove the cutting blade when the machine is  
transported.  
Make sure that the right bushing is used for the cutting blade  
to be fitted on the machine. See the instructions under the  
heading Assembling the cutting blade.  
Keep a good balance and a firm foothold.  
Always cut at maximum speed.  
High-quality blades are often most economical. Lower quality  
blades often have inferior cutting capacity and a shorter  
service life, which results in a higher cost in relation to the  
quantity of material that is cut.  
Stand at a comfortable distance from the work piece.  
Take care when inserting the blade in an existing cut.  
Never cut above shoulder height.  
Water cooling  
Be alert to movement of the work piece or anything else  
that can occur, which could cause the cut to close and  
pinch the blade.  
WARNING! Water cooling, which is used  
when cutting concrete, cools the blade and  
increases its service life while also reducing  
the formation of dust. Disadvantages include  
difficulties at very low temperatures, the risk  
of damaging floors and other structural  
elements, and the risk of slipping.  
Pull in  
!
Pull in occurs when the disc’s lower section suddenly stops or  
when the cut closes. (To avoid, see the heading ”Basic rules”  
and ”Jamming/rotation”, here below.)  
Pinching/rotation  
After using an abrasive disc with water cooling, run the disc  
dry for about half a minute. If an abrasive disc is stored in  
humid conditions, this can cause imbalance and result in  
injury.  
If the cut is pressed together this can lead to jamming. The  
machine can be pulled down suddenly with a very powerful  
jerk.  
English – 11  
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SAFETY INSTRUCTIONS  
Test the abrasive disc by hanging it on your finger and tapping  
it lightly with a screwdriver or the like. If the disc does not  
produce a resonant, ringing sound it is damaged.  
High speed handheld machines  
Our cutting blades are manufactured for high-speed, portable  
power cutters. If blades from other manufacturers are used,  
ensure that the blades conform to all regulations and  
demands that concern this type of power cutter.  
Special blades  
Some cutting blades are designed for stationary equipment  
and for use with attachments.Such cutting blades must not be  
used on portable power cutters.  
Always contact local authorities and make sure you are  
following applicable directives.  
Diamond blades  
Diamond blades consist of a steel body provided with  
segments that contain industrial diamonds.  
Abrasive discs  
The cutting material on abrasive discs consists of grit bonded  
using an organic binder. ”Reinforced blades” are made up of  
a fabric or fibre base that prevents total breakage at maximum  
working speed if the blade should be cracked or damaged.  
Diamond blades ensure lower costs per cutting operation,  
fewer blade changes and a constant cutting depth.  
When using diamond blades make sure that it rotates in the  
direction indicated by the arrow on the blade.  
A cutting blade’s performance is determined by the type and  
size of abrasive corn, and the type and hardness of the  
bonding agent.  
Abrasive discs, types and use  
Use  
Disc type Material  
Water cooling  
Can be used to reduce  
dust. Run the disc dry  
for about a half minute  
after using an abrasive  
disc with water  
Concrete, asphalt,  
stone masonry, cast  
iron, aluminium,  
copper, brass, cables,  
rubber, plastic, etc.  
Always use a sharp diamond blade. Sharpen the blade by  
cutting in a soft material such as sandstone or brick.  
Concrete  
Metal  
Diamond blades are available in several hardness classes. A  
"soft" diamond blade has a relatively short service life and  
large cutting capacity. It is used for hard materials such as  
granite and hard concrete. A "hard" diamond blade has a  
longer service life and reduced cutting capacity, and should  
be used for soft materials such as brick and asphalt.  
cooling.  
Steel, steel alloys and  
other hard metals.  
NOT recommended  
Check that the blade is approved for the same or higher  
speed according to the aproval plate of the engine. Never use  
a cutting blade with a lower speed rating than that of the  
power cutter.  
Material  
Diamond blades are ideal for masonry, reinforced concrete  
and other composite materials. Diamond blades are not  
recommended for cutting metal.  
Diamond blades for wet cutting  
WARNING! Cool diamond blades for wet  
cutting continuously with water to prevent  
overheating, which can cause the blade to  
break up and eject pieces that can cause  
injury.  
!
Ensure the blade it not cracked or damaged in any other way.  
Diamond blades for wet cutting should have water poured  
over them during the cutting to cool the blade and bond the  
dust.  
Diamond blades for dry cutting  
Diamond blades for dry cutting are a new generation of  
blades that do not require water cooling. However, the blades  
will still be damaged by excessive heat. It is most economical  
to allow the blade to cool by simply lifting it out from the cut  
every 30–60 seconds and letting it rotate in the air for 10  
seconds.  
12 – English  
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ASSEMBLY  
Do not use warped, notched, indented or dirty flange  
washers. Do not use different dimensions of flange washers.  
Assembling the cutting head  
Remove the bolt (1) and nut (2). Remove the guard. Fit the  
drive belt on the clutch drum. Fit the guard and tighten the  
screws.  
Fitting the cutting blade  
Husqvarna cutting blades are manufactured and approved for  
freehand cutting. The paper labels on each side of the blade  
are there to distribute the pressure from the flange washer  
and prevent the blade from slipping.  
The blade is placed on the bushing (C) between the inner  
flange washer (A) and the flange washer (B). The flange  
washer is turned so that it fits on the axle.  
Run the drive belt over the cutting head’s belt pulley (2).  
Position the belt guard and secure the cutting head together  
with the belt guard. Tighten both bolts (4) by hand.  
The shaft can be locked using a screwdriver, steel pin or the  
like. This is slid in as far as possible. The blade is tightened  
clockwise.  
Screw in the tension screw (3) so that the square nut aligns  
with the arrow on the belt guard. Shake the head to ensure  
the spring can tension the belt.This automatically adjusts the  
belt to the correct tension. Tighten both bolts (4) using the  
combination spanner. NOTE! When a belt is fitted the belt  
tension must be readjusted after the first two tanks of fuel  
have been used.  
Tightening torque for the bolt holding the blade is: 15-25 Nm  
(130-215 in.lb).  
Guard for the blade  
The guard must always be fitted on the machine. The guard  
for the cutting equipment should be adjusted so that the rear  
section is flush with the work piece. Spatter and sparks from  
the material being cut are then collected up by the guard and  
led away from the user.  
Checking the drive axle and flange  
washers  
Check that the threads on the drive shaft are undamaged.  
Check that the contact surfaces on the blade and the flange  
washers are undamaged, of the correct dimension, clean,  
and that they run properly on the drive axle.  
WARNING! A 16 inch blade guard should  
only be used on power cutters initially  
equipped with a 16 inch blade guard. If a  
guard obtained as a spare part is fitted on a  
power cutter which is equipped with a 12 or  
14 inch guard, a 16 inch blade will run too  
fast. A cutting blade running at a too high  
speed can break or cause serious damage.  
!
English – 13  
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FUEL HANDLING  
Mix (shake) the fuel mixture thoroughly before filling the  
machine’s fuel tank.  
Fuel  
CAUTION!The machine is equipped with a two-stroke engine  
and must always been run using a mixture of gasoline and  
two-stroke engine oil. It is important to accurately measure  
the amount of oil to be mixed to ensure that the correct  
mixture is obtained.When mixing small amounts of fuel, even  
small inaccuracies can drastically affect the ratio of the  
mixture.  
WARNING! Always ensure there is adequate  
ventilation when handling fuel.  
!
Do not mix more than one month’s supply of fuel at a time.  
Gasoline  
If the machine is not used for some time the fuel tank  
should be emptied and cleaned.  
Use good quality unleaded gasoline.  
Fueling  
WARNING!Taking the following precautions,  
will lessen the risk of fire:  
!
The lowest recommended octane grade is 87  
Do not smoke or place hot objects near fuel.  
Always shut off the engine before refuelling.  
((RON+MON)/2). If you run the engine on a lower octane  
grade than 87 so-called knocking can occur. This gives  
rise to a high engine temperature and increased bearing  
load, which can result in serious engine damage.  
When refuelling, open the fuel cap slowly so  
that any excess pressure is released gently.  
Two-stroke oil  
Tighten the fuel cap carefully after refuelling.  
For best results and performance use HUSQVARNA two-  
stroke engine oil, which is specially formulated for our air-  
cooled two stroke-engines.  
Always move the machine away from the  
refuelling area before starting.  
Keep the handle dry and free from oil and fuel.  
Never use two-stroke oil intended for water-cooled  
engines, sometimes referred to as outboard oil (rated  
TCW).  
Ensure that the fuel is well mixed by shaking the container  
before filling the tank.  
Never use oil intended for four-stroke engines.  
Mixing ratio  
1:50 (2%) for all engines.  
Always exercise care when refilling the fuel. Move the  
machine at least three metres from the fuelling area  
before it is started. Check that the fuel cap is tightened  
correctly.  
Gasoline, litre  
Two-stroke oil, litre  
2% (1:50)  
0,10  
5
10  
0,20  
15  
0,30  
20  
0,40  
US gallon  
US fl. oz.  
2 1/2  
1
2 1/2  
5
6 1/2  
12 7/8  
Clean around the fuel cap. Clean the fuel and oil tank  
regularly.The fuel filter should be changed at least once a  
year. Contamination in the tanks causes malfunction.  
Mixing  
Always mix the gasoline and oil in a clean container  
intended for fuel.  
Always start by filling half the amount of the gasoline to be  
used. Then add the entire amount of oil. Mix (shake) the  
fuel mixture. Add the remaining amount of gasoline.  
14 – English  
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STARTING AND STOPPING  
Starting a warm engine  
Use the same starting procedure as for a cold engine but  
Starting and stopping  
without setting the choke control in the choke position.  
WARNING! Note the following before  
starting:  
!
Do not start the power cutter without the belt  
guard fitted. Otherwise the clutch could  
come loose and cause personal injuries.  
Always move the machine away from the  
refuelling area before starting.  
Ensure that you and the machine have a  
good working stance and that the cutting  
blade can rotate freely.  
Starting  
Keep people and animals well away from the  
working area.  
WARNING! The cutting blade rotates when  
the engine is started. Make sure it can rotate  
freely.  
!
Starting a cold engine  
Grip the front handle with your left hand. Put your right foot on  
the lower section of the rear handle pressing the machine  
against the ground. Never wrap the starter cord around  
your hand  
Ignition: Slide the ignition switch to the left.  
Choke: Pull the choke control fully out.  
Start throttle lock: Press in the throttle trigger lock, throttle  
control and then the start throttle lock (A).Release the throttle  
control and it is locked in the half throttle position. The lock  
releases when the throttle control is pressed in fully.  
Grip the starter handle, slowly pull out the cord with your right  
hand until you feel some resistance (the starter pawls grip),  
now quickly and powerfully pull the cord.  
CAUTION! Do not pull the starter cord all the way out and do  
not let go of the starter handle when the cord is fully extended.  
This can damage the machine.  
When the engine starts, quickly apply full throttle to  
automatically disengage fast idle.  
Automatic decompression valve  
The machine is equipped with an automatic decompression  
valve to facilitate the start of the power cutter.  
Stopping  
The engine is stopped by switching the ignition off using the  
stop switch.  
English – 15  
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MAINTENANCE  
Replace the drive belt.  
Tensioning the drive belt  
Assemble in the reverse order as set out for dismantling.  
Check that the blade guard over the cutting blade is not  
cracked or damaged in any other way. Replace when  
damaged.  
The drive belt is fully enclosed and well protected from  
dust and dirt.  
WARNING! Never use the power cutter  
When tensioning the drive belt, slightly loosen the nuts (A)  
holding the cutting head and belt guard.  
without a blade guard over the cutting blade.  
!
Belt pulley and clutch  
Never start the engine when the belt pulley and clutch are  
removed for maintenance.  
Carburetor  
Turn the tension screw so that the nut (B) aligns with the  
arrow on the guard. Shake the head to ensure the spring  
can tension the belt. The belt now automatically has the  
right tension.  
Your Husqvarna product has been designed and  
manufactured to specifications that reduce harmful  
emissions. After the engine has used 8-10 tanks of fuel the  
engine will be run-in.To ensure that it continues to run at peak  
performance and to minimise harmful exhaust emissions  
after the running-in period, ask your dealer/service workshop  
(who will have a rev counter at their disposal) to adjust your  
carburettor.  
Function  
Tighten the nuts holding the cutting head.  
WARNING! Do not start the machine without  
the cutting arm or cutting head fitted.  
Otherwise the clutch could come loose and  
cause personal injuries.  
IMPORTANT INFORMATION The tension of a new drive  
belt must be readjusted after one or two tanks of fuel have  
been used.  
!
The carburettor governs the engine speed via the throttle.  
Air and fuel are mixed in the carburettor.  
Replacing the drive belt  
High speed jet  
The carburetor is equipped with fixed H-jet to ensure the  
engine always receives the correct fuel air mixture.  
Loosen the two screws (A).  
If the engine lacks power or accelerates poorly do the  
following:  
Check the air filter and replace if necessary.  
When this does not help, contact an authorised service  
workshop.  
Low speed jet L  
Turn the tension screw (B) until tensioning stops.  
Remove the two screws (A).  
Apply full throttle a couple of times and check that the saw is  
accelerating without hesitation.  
Remove the front belt guard (C)  
Remove the belt from the belt pulley.  
Remove the cutting head.  
Basic setting L: 1 1/4 turn open.  
If an adjustment is necessary, try to reach the maximum idle  
speed, by slowly closing the low speed needle L clockwise  
until the engine starves from fuel. Then open (counter-  
clockwise) 1/8 of a turn.  
Remove the screw (D). Remove the side cover.  
Check the engine acceleration.  
CAUTION! A too lean adjusted low speed needle (the L-  
needle closed too much) results in starting difficulties.  
16 – English  
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MAINTENANCE  
Remove the foam plastic filter.Wash the filter well in tepid  
Fine adjustment of the idle speedT  
soapy water. After cleaning, rinse the filter well in clean  
water. Squeeze out and allow the filter to dry. NOTE! High  
pressure compressed air can damage the foam.  
Adjust the idle speed using the T screw.When an adjustment  
is necessary, rst turn the screw clockwise until the blade  
starts to rotate. Now turn the screw anti-clockwise until the  
blade stops rotating. A correctly adjusted idle speed is set  
when the engine accelerates without hesitation.  
Rec. idle speed: 2500 rpm  
Put the filter in a plastic bag and pour the filter oil over it.  
Knead the plastic bag to distribute the oil. Squeeze the  
excess oil out of the filter inside the plastic bag and pour  
off the excess before fitting the filter to the machine.Never  
use common engine oil.This would drain through the filter  
quite quickly and collect in the bottom.  
WARNING! If the idle speed cannot be  
adjusted so that the cutting attachment  
stops, contact your dealer/service  
workshop. Do not use the machine until it  
has been correctly adjusted or repaired.  
!
Fuel filter  
The fuel filter sits inside the fuel tank.  
The fuel tank must be protected from contamination when  
filling. This reduces the risk of operating disturbances  
caused by blockage of the fuel filter located inside the  
tank.  
The filter cannot be cleaned but must be replaced with a  
new filter when it is clogged. The filter should be  
changed at least once per year.  
2
The paper filter is accessible under cover B. This filter  
must be replaced/cleaned when the engine’s power drops  
or after one-two weeks.The filter is cleaned by shaking or  
by careful blowing with compressed air. Note that the filter  
must not be washed.  
Air filter  
An air filter that has been in use for a long time cannot be  
cleaned completely.The filter must therefore be replaced with  
a new one at regular intervals. A damaged air filter must  
always be replaced.  
Air filters must be regularly cleaned to remove dust and dirt in  
order to avoid:  
IMPORTANT INFORMATION  
Carburettor malfunctions  
Starting problems  
Poor maintenance of the air filter will cause carbon build-up  
on the spark plug and abnormal wear to engine parts.  
Loss of engine power  
Unnecessary wear to engine parts  
Excessive fuel consumption.  
The air filter system consists of an oiled foam plastic filter (1)  
and a paper filter (2):  
1
The foam plastic filter is easily accessible under the filter  
cover A. This filter should be checked weekly and  
replaced if necessary. In order to obtain a good filtering  
effect, the filter must be replaced regularly or cleaned and  
oiled. A special HUSQVARNA oil has been produced for  
this purpose.  
A
B
English – 17  
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MAINTENANCE  
Tensioning the recoil spring  
Starter  
Hook the starter cord in the notch in the pulley and turn  
the starter pulley about 2 turns clockwise.  
WARNING! When the recoil spring is wound  
up in the starter housing it is under tension  
and can, if handled carelessly, pop out and  
cause personal injury.  
CAUTION! Check that the pulley can be turned an  
additional 1/2 turn when the starter cord is pulled all the  
way out.  
!
Always be careful when changing the recoil  
spring or the starter cord. Always wear  
protective goggles.  
Changing a broken or worn starter cord  
Loosen the screws that hold the starter against the  
crankcase and remove the starter.  
Changing a broken recoil spring  
Lift up the starter pulley. See instructions under the  
heading Changing a broken or worn starter cord.  
Remember that the recoil spring is coiled under tension in  
the starter housing.  
Loosen the bolts holding the spring cassette.  
Pull out the cord approx. 30 cm (12 inches) and hook it  
into the notch in the rim of the pulley. Release the recoil  
spring by letting the pulley rotate slowly backwards.  
Remove the recoil spring by tapping the starter, with the  
inside facing downwards, gently on a work bench. If the  
spring pops out during assembly, coil it up from the  
outside, working inwards.  
Undo the screw in the centre of the pulley and remove the  
pulley. Insert and fasten a new starter cord to the pulley.  
Wind approx. 3 turns of the starter cord onto the pulley.  
Connect the pulley to the recoil spring so that the end of  
the spring engages in the pulley. Fit the screw in the  
center of the pulley. Insert the starter cord through the  
hole in the starter housing and the starter handle. Make a  
secure knot in the end of the starter cord.  
Lubricate the recoil spring with light oil. Fit the pulley and  
tension the recoil spring.  
Fitting the starter  
To t the starter, first pull out the starter cord and place the  
starter in position against the crankcase. Then slowly  
release the starter cord so that the pulley engages with  
the pawls.  
Fit and tighten the screws that hold the starter.  
18 – English  
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MAINTENANCE  
Spark plug  
Cooling system  
The spark plug condition is influenced by:  
To keep the working temperature as low as possible the  
machine is equipped with a cooling system.  
Incorrect carburetor adjustment.  
Wrong fuel mixture (too much oil).  
A dirty air filter.  
The cooling system consists of:  
These factors cause deposits on the spark plug electrodes,  
which may result in operating problems and starting  
difficulties.  
1
2
3
4
5
Air intake on the starter.  
Air guide plate.  
Fins on the flywheel.  
Cooling fins on the cylinder.  
Cylinder cover  
If the machine is low on power, difficult to start or runs  
poorly at idle speed: always check the spark plug first  
before taking any further action. If the spark plug is dirty,  
clean it and check that the electrode gap is 0.020 inch (0.5  
mm). The spark plug should be replaced after about a  
month in operation or earlier if necessary.  
Clean the cooling system with a brush once a week, more  
often in demanding conditions. A dirty or blocked cooling  
system results in the machine overheating which causes  
damage to the piston and cylinder.  
Muffler  
CAUTION! Always use the recommended spark plug type!  
Use of the wrong spark plug can damage the piston/cylinder.  
The muffler is designed to reduce the noise level and to direct  
the exhaust gases away from the operator. The exhaust  
gases are hot and can contain sparks, which may cause fire  
if directed against dry and combustible material.  
Never use a machine with a defective muffler.  
English – 19  
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MAINTENANCE  
General maintenance instructions  
Below you will find some general maintenance instructions. If you have more questions, contact your service agent.  
2
13  
5
14  
9
6
4
11  
15  
17  
1
7
16  
10  
3
8
20  
12  
18 19  
Daily maintenance  
1
2
3
4
5
6
7
Check that the components of the throttle control work smoothly (throttle control and throttle trigger lock).  
Check the tension of the drive belt.  
Check the condition of the blade and the drive gear.  
Check the condition of the blade guard.  
Check the starter and starter cord and clean the outside of the starter unit’s air intake.  
Check that nuts and screws are tight.  
Check that the stop switch works correctly.  
Weekly maintenance  
8
9
Check, clean or replace the main filter.  
Check that the handles and vibration damping elements are not damaged.  
10 Clean the spark plug. Check that the electrode gap is 0.020 inch (0.5 mm).  
11 Clean the fins on the flywheel. Check the starter and the recoil spring.  
12 Clean the cooling fins on the cylinder.  
13 Check that the muffler is securely attached and not damaged.  
14 Check the operation of the carburettor.  
Monthly maintenance  
15 Check the paper filter  
16 Check the clutch centre, drive gear and clutch spring for wear.  
17 Clean the outside of the carburetor.  
18 Check fuel hose for cracks or other damage. Change if necessary.  
19 Clean the inside of the fuel tank.  
20 Check all cables and connections.  
20 – English  
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TECHNICAL DATA  
Engine  
K1250  
3
Cylinder displacement, cu.in/cm  
Cylinder bore, inch/mm  
Stroke, inch/mm  
7,25/119  
2,36/60  
1,65/42  
2500  
Idle speed, rpm  
Recommended max. fast idle speed, rpm  
Power, kW/ rpm  
9750 250  
12,8/5,8  
Ignition system  
Manufacturer of ignition system  
Type of ignition system  
Spark plug  
EM  
ET  
Champion RCJ 6Y/ NGK BPMR 7A  
Electrode gap, inch/mm  
Fuel and lubrication system  
Manufacturer of carburetor  
Carburetor type  
0,02/0,5  
Walbro  
WG 9  
Fuel tank capacity, US pint/litre  
Weight  
2,64/1,25  
Power cutter without fuel and cutting blade, Lbs/kg  
14” (350 mm)  
29,9/13,6  
31,7/14,4  
16” (400 mm)  
Cutting equipment  
Cutting blade  
14” (350 mm)  
16” (400 mm)  
Max. peripheral speed, m/s  
Max. speed of output shaft, rpm  
100  
100  
5100  
4700  
English – 21  
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FEDERAL EMISSION CONTROL WARRANTY STATEMENT  
Products servicing dealer. If you have any questions  
regarding your warranty rights and responsibilities, you  
should contact your nearest authorized servicing dealer or  
call Husqvarna Construction Products, at 1-800-323 3553.  
YOUR WARRANTY RIGHTS AND  
OBLIGATIONS  
The EPA (The US Environmental Protection Agency),  
WARRANTY PERIOD Any warranted part which is not  
scheduled for replacement as required maintenance, or  
which is scheduled only for regular inspection to the effect of  
“repair or replace as necessary” shall be warranted for 2  
years.Any warranted part which is scheduled for replacement  
as required maintenance shall be warranted for the period of  
time up to the first scheduled replacement point for that part.  
Environment Canada and Husqvarna Construction Products  
are pleased to explain the emissions control system warranty  
on your 2001 and later small nonroad engine. In U.S. and  
Canada, new small nonroad engines must be designed, built  
and equipped to meet the federal stringent anti-smog  
standards. Husqvarna Construction Products must warrant  
the emission control system on your small nonroad engine for  
the period of time listed below provided there has been no  
abuse, neglect or improper maintenance of your unit.Your  
emmission control system includes Parts such as the  
carburetor and the ignition system. Where a warrantable  
condition exists, Husqvarna Construction Products will repair  
your small nonroad engine at no cost to you. Expenses  
covered under warranty include diagnosis, parts and labor.  
DIAGNOSIS The owner shall not be charged for diagnostic  
labor which leads to the determination that a warranted part  
is defective, if the diagnostic work is performed at an  
approved Husqvarna Construction Products servicing dealer.  
CONSEQUENTIAL DAMAGES Husqvarna Construction  
Products may be liable for damages to other engine  
components caused by the failure of a warranted part still  
under warranty.  
MANUFACTURERS WARRANTY  
COVERAGE  
The 2001 and later small nonroad engines are warranted for  
two years. If any emission related part on you engine (as  
listed above) is defective, the part will be repaired or replaced  
by Husqvarna Construction Products.  
WHAT IS NOT COVERED  
All failures caused by abuse, neglect or improper  
maintenance are not covered.  
ADD -ON OR MODIFIED PARTS  
The use of add-on or modified parts can be grounds for  
disallowing a warranty claim. Husqvarna Construction  
Products is not liable to cover failures of warranted parts  
caused by the use of add-on or modified parts.  
OWNERSWARRANTY RESPONSIBILITIES  
As the small nonroad engine owner, you are responsible for  
the performance of the required maintenance listed in your  
Operators Manual. Husqvarna Construction Products  
recommends that you retain all receipts covering  
HOW TO FILE A CLAIM  
If you have any questions regarding your warranty rights and  
responsibilities, you should contact your nearest authorized  
servicing dealer or call Husqvarna Construction Products, at  
1-800-323 3553.  
maintenance on your small nonroad engine, but Husqvarna  
Construction Products cannot deny warranty solely for the  
lack of receipts or for your failure to ensure the performance  
of all scheduled maintenance. As the small nonroad engine  
owner, you should, however, be aware that Husqvarna  
Construction Products may deny you warranty coverage if  
your small nonroad engine or a part of it has failed due to  
abuse, neglect, improper maintenance, unapproved  
modifications or the use of parts not made or approved by the  
original equipment manufacturer.You are responsible for  
presenting your small nonroad engine to a Husqvarna  
Construction Products authorized servicing dealer as soon as  
a problem exists. The warranty repairs should be completed  
in a reasonable amount of time, not to exceed 30 days. If you  
have any questions regarding your warranty rights and  
responsibilities, you should contact your nearest authorized  
servicing dealer or call Husqvarna Construction Products, at  
1-800-323 3553.  
WHERE TO GET WARRANTY SERVICE  
Warranty services or repairs shall be provided at all  
Husqvarna Construction Products authorized servicing  
dealers.  
MAINTENANCE, REPLACEMENT AND  
REPAIR OF EMISSION-RELATED PARTS  
Any Husqvarna Construction Products approved  
replacement part used in the performance of any warranty  
maintenance or repairs on emission-related parts, will be  
provided without charge to the owner if the part is under  
warranty.  
EMISSION CONTROL WARRANTY PARTS  
LIST  
WARRANTY COMMENCEMENT DATE  
The warranty period begins on the date small nonroad engine  
is delivered.  
1
2
3
4
Carburetor and internal parts  
Intake pipe, airfilter holder and carburetor bolts.  
Airfilter and fuelfilter covered up to maintenance schedule.  
Ignition System  
LENGTH OF COVERAGE  
Husqvarna Construction Products warrants to the initial  
owner and each subsequent purchaser that the engine is free  
from defects in materials and workmanship which cause the  
failure of a warranted part for a period of two years.  
1
2
Spark Plug, covered up to maintenance schedule  
Ignition Module  
WHAT IS COVERED  
REPAIR OR REPLACEMENT OF PARTS Repair or  
replacement of any warranted part will be performed at no  
charge to the owner at an approved Husqvarna Construction  
MAINTENANCE STATEMENT  
The owner is responsible for the performance of all required  
maintenance, as defined in the operator’s manual.  
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22 – English  
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WARNING! Cutting, especially when DRY  
cutting, generates dust that comes from the  
material being cut, which frequently  
contains silica. Silica is a basic component  
of sand, quartz, brick clay, granite and  
numerous other minerals and rocks.  
Exposure to excessive amount of such dust  
can cause:  
!
Respiratory disease (affecting your ability to  
breath), including chronic bronchitis,  
silicosis and pulmonary fibrosis from  
exposure to silica.These diseases may be  
fatal;  
Skin irritation and rash.  
Cancer according to NTP* and IARC*  
*/ NationalToxicology Program, International  
Agency for Resaearch on Cancer  
Take precautionary steps:  
Avoid inhalation of and skin contact with  
dust, mist and fumes.  
Wear and ensure that all bystanders wear  
appropriate respiratory protection such as  
dust masks designed to filter out  
microscopic particles. (See OSHA 29 CFR  
Part 1910.1200)  
Wet cut when feasible, to minimize dust.  
1150292-95  
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´®z+R==¶5X¨  
2007-01-02  
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